Organic molecules for optoelectronic devices

Abstract

The present invention relates to an organic molecule comprising or consisting of the following formula A: TADF indicates a TADF moiety, L is a direct bond, or M TADF and M. BN and M TADF and M. BN and M BN shows an emitter moiety containing a direct BN bond.The invention also relates to the use of said organic molecules as light emitters in optoelectronic devices. [Chemical formula A] JPEG2025505549000218.jpg18170

Description

[Technical field]

[0001] The present invention relates to light-emitting organic molecules and their use in organic light-emitting diodes (OLEDs) and other optoelectronic devices. [Background technology]

[0002] Organic electroluminescent devices, including one or more organic-based light-emitting layers, such as organic light-emitting diodes (OLEDs), light-emitting electrochemical cells (LECs) and light-emitting transistors, are becoming increasingly important. In particular, OLEDs are promising devices for electronic products, such as screens, displays and lighting devices. In contrast to most electroluminescent devices that are essentially inorganic-based, organic-based organic electroluminescent devices are usually somewhat flexible and can be manufactured, especially in thin films. OLED-based screens and displays already available today provide particularly useful vivid hues and contrasts and are relatively efficient in terms of energy consumption.

[0003] The core element of an organic electroluminescent device for generating light is the light-emitting layer located between the anode and the cathode. When a voltage (and current) is applied to the organic electroluminescent device, holes and electrons are injected into the light-emitting layer from the anode and the cathode, respectively. Typically, a hole transport layer is located between the light-emitting layer and the anode, and an electron transport layer is located between the light-emitting layer and the cathode. The different layers are arranged in sequence. High energy excitons are generated by recombination of holes and electrons. The decay of such excited states (e.g., singlet states such as S1 and / or triplet states such as T1) to the ground state (S0) preferably causes light emission.

[0004] To enable efficient energy transfer and light emission, organic electroluminescent devices contain one or more host compounds and one or more emitter compounds as dopants.Therefore, the challenge in producing organic electroluminescent devices is to improve the light level (i.e. brightness per current) of the device, obtain a desired light spectrum, and achieve a suitable (long) lifetime. Summary of the Invention [Problem to be solved by the invention]

[0005] There remains a need for efficient and stable OLEDs, especially those that emit in the blue region of the visible light spectrum, which is expressed by small CIEy values. Thus, there remains an unmet technical need for organic electroluminescent devices that have long lifetimes and high quantum yields, especially in the blue range.

[0006] Exciton-polaron interactions (triplet-polaron and singlet-polaron interactions) and exciton-exciton interactions (singlet-singlet, triplet-singlet, and triplet-triplet interactions) are the main pathways for degradation of device performance. Degradation pathways such as triplet-triplet annihilation (TTA) and triplet-polaron quenching (TPQ) are of special interest for blue light-emitting devices since high-energy states are generated. In particular, charged emitter molecules are prone to generating high-energy excitons and / or polarons.

[0007] A suitable method to avoid the aforementioned degradation pathways and enable efficient energy transfer within the emissive layer is the so-called "hyper" approach, where a thermally activated delayed fluorescent (TADF) material is employed to upconvert triplet excitons to singlet excitons, which are transferred to an emitter that emits light upon decay of the singlet excited state to the ground state. As singlet emitters, for example, fluorescent emitters (superfluorescent), NRCT emitters (hyper-NRCT) or TADF emitters (hyper-TADF) can be used.

[0008] The efficiency and lifetime of OLEDs using currently available "hyper" approaches are limited by many factors. To ensure efficient energy transfer, radiation-free transfer of singlet excitons from the TADF material to the singlet emitter, called Förster Resonance Energy Transfer (FRET), must be realized. The FRET rate depends strongly on the distance between the TADF material and the singlet emitter, and on the so-called Förster radius. The Förster radius depends strongly on the emission wavelength of the singlet exciton donor molecule, decreasing as the wavelength becomes shorter (i.e., more blue-shifted). A known way to ensure efficient Förster transfer in hyper systems is to increase the concentration of singlet emitters or singlet exciton donor TADF materials (FRET donors) in the emission layer, increasing the probability that the singlet emitter is located within the Förster radius of the singlet exciton donor TADF material. Increasing the concentration of singlet emitters, especially fluorescent or NRCT, can induce π-stacking of singlet emitters and / or exciplex formation of singlet emitters resulting in emission migration and / or extension. Furthermore, as the concentration increases, charges, especially holes, can be trapped in the singlet emitters inducing stress and potentially resulting in performance degradation, for example hole trapping can cause unwanted direct charge recombination in the trapping emitter. Also, high singlet emitter concentrations can result in efficiency loss due to quenching.

[0009] Similarly, increasing the concentration of TADF materials leads to efficiency losses due to quenching. Also, at higher concentrations, triplet excitons can be transferred from the TADF material to the singlet emitter before being upconverted to singlet excitons by the TADF material (Dexter transfer). Triplet excitons in the singlet emitter can decay silently or, if the singlet emitter is a fluorescent emitter, can be upconverted through a less efficient mechanism than TADF (e.g. triplet-triplet annihilation TTA), reducing efficiency. On the other hand, short-range charge transfer (NRCT) emitters are more susceptible to degradation by triplet excitons than TADF materials. [Means for solving the problem]

[0010] Surprisingly, the thermally activated delayed fluorescence (TADF) material moiety and the direct BN-bonded M BN It has been found that organic molecules according to the present invention, in which an emitter moiety containing TADF (or BN, boron-nitrogen bond) is bonded to one molecule, exhibit advantageous effects without the limitations of the Hyper-NRCT approach described above. TADF and direct BN bond M BN The emitter moiety is bridged through a bridge unit L, which is a BN bond M BN The M TADF TADF properties of M and direct BN bonding BN As a result, the light-emitting layer including the organic molecule according to the present invention provides an organic electroluminescence device that has excellent lifetime and quantum yield and emits blue light.

[0011] One further advantageous effect of the molecules according to the invention is that the functionality of TADF and NRCT is combined in one molecule, thereby reducing the number of molecules to be processed during the manufacture of organic electroluminescent devices, such as OLED displays, using the Hyper-NRCT approach. In the evaporation process, the number of sources and the complexity of evaporation rate control can be advantageously reduced.

[0012] According to the invention, the organic molecules preferably exhibit an emission maximum in the blue, sky blue or green spectral range. The organic molecules in particular exhibit an emission maximum between 420 nm and 520 nm, preferably between 440 nm and 495 nm, more preferably between 450 nm and 470 nm. The photoluminescence quantum yield of the organic molecules according to the invention is in particular greater than or equal to 60%. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] The organic molecule according to the present invention has the structure of formula A:

[0014] [Chemical formula A] JPEG2025505549000002.jpg23170M TADF denotes the TADF moiety, L is a direct bond (single bond) or M TADF and M. BN and M TADF and M. BN and a divalent bridging unit connected to each of the M BN indicates an emitter moiety that includes a direct BN bond.

[0015] The organic molecules may preferably be organic light-emitting molecules. Such organic light-emitting molecules are also referred to as "emitters," "emitter compounds," or "emitter molecules." The organic molecules that include such BN emitter moieties are also considered BN emitters or BN materials.

[0016] The terms "emitter moiety containing a direct BN bond", "BN emitter moiety", "BN moiety" and its abbreviation M BN are understood interchangeably.

[0017] The term "small FWHM" refers to an emission spectrum having a full width at half maximum (FWHM) of 0.25 eV or less. Unless otherwise specified, emission spectra of TADF moieties are measured using spin-coated films of 1-10 wt%, particularly 10 wt%, of each TADF moiety in poly(methyl methacrylate) (PMMA), and emission spectra of BN moieties are typically measured in a solution containing 0.001-0.2 mg / mL of BN moieties in dichloromethane or toluene at room temperature (i.e., (about) 20° C.). The emission spectrum of a "small FWHM emitter" has a small FWHM.

[0018] The thermally activated delayed fluorescence (TADF) moiety has a lowest excited singlet state energy level E(S1 E ) and the lowest excited triplet state energy level E(T1 E ) corresponds to the energy difference ΔE ST Therefore, the ΔE value of the TADF moiety according to the present invention is ST is the lowest excited triplet state T1 at room temperature (RT, i.e., (approximately) 20°C). E from the lowest excited singlet state S1 E is small enough to allow thermal recharge (also called up-intersystem crossing or reverse intersystem crossing, RISC) of

[0019] Unless otherwise specified, the energy of the first (i.e., lowest) excited triplet state T1 is determined from the onset of the phosphorescence spectrum at 77 K (for TADF moieties, spin-coated films of 10 wt. % TADF moieties in PMMA are commonly used, and for BN materials, spin-coated films of 1-5 wt. %, preferably 2 wt. %, BN materials in PMMA are commonly used). For example, as disclosed in EP2690681A1, small ΔE ST For TADF materials with a value of 1, it is recognized that both intersystem crossing and reverse intersystem crossing occur even at low temperatures. As a result, the emission spectrum at 77K contains emission from both the S1 and T1 states. However, as also stated in EP2690681A1, the triplet energy contribution / value is generally considered to be dominant.

[0020] Unless otherwise specified, the energy of the first (i.e., lowest) excited singlet state S1 is determined from the onset of the fluorescence spectrum at room temperature (i.e., approximately 20° C.) (steady-state spectrum; for TADF materials, a spin-coated film of 10 wt % TADF material in PMMA is commonly used, and for BN materials, a solution of 0.001-0.2 mg / mL BN material in dichloromethane or toluene at room temperature (i.e., approximately 20° C.) is commonly used).

[0021] NRCT emitters exhibit delayed components in time-resolved photoluminescence spectra, indicating short-range HOMO-LUMO separation. Conventional NRCT emitters exhibit only one emission band in the emission spectrum, whereas conventional fluorescent emitters exhibit multiple unique emission bands due to vibrational progression. A skilled artisan knows how to design and synthesize NRCT emitters suitable as small FWHM emitters in the context of the present invention. BN moieties can be NRCT emitters.

[0022] Unless otherwise specified, the FWHM and emission maxima of the BN and TADF moieties are determined from the fluorescence spectra at room temperature (i.e., about 20° C.) (steady-state spectra; for TADF materials, a spin-coated film of 10 wt % TADF material in PMMA is typically used, and for BN materials, a solution of 0.001-0.2 mg / mL of BN material in dichloromethane or toluene at room temperature (i.e., (about) 20° C.) is typically used).

[0023] Selection criteria: Preferably, the TADF moiety M TADF and direct BN bond M BN The combination of emitter moieties containing must be selected to meet the following criteria: Equation 1 is satisfied (luminous maximum relationship): λ max (TADF)<λ max (BN) Equation 1 λ max (TADF) is a 10 wt% solution of isolated TADF material (M TADF -H), i.e., TADF moiety M TADF and M. TADF The emission maxima of the spectrum of poly(methyl methacrylate) (PMMA) films containing materials in which the substituents representing the binding sites of the single bonds linking the bridging units L and L are replaced by hydrogen (H) substituents. max is provided in nanometers.

[0024] λ max (BN) denotes the emission maximum of the spectrum of an organic solvent, said organic solvent preferably containing 0.001 mg / ml of separated emitter moieties (M BN -H) in DCM or toluene, and the separated emitter moiety (M BN -H) is a direct BN bond M BN Contains M BN and M. BN The substituent that represents the bonding site of the single bond that connects the bridging unit L to the bridging unit L is replaced by a hydrogen (H) substituent.

[0025] Spectral overlap of TADF emission and BN absorption: M TADF and M. BN is selected to provide maximum resonance. TADF and M. BN The resonance with is expressed as a spectral convolution integral:

[0026]

number

[0027]

number

[0028] Cross-linking unit L: The bridging unit L suppresses undesirable Dexter transmission while promoting M TADF and M. BN The FRET rate is determined by the singlet exciton donor (i.e., M TADF ) and singlet exciton acceptors (i.e., M BN The Dexter transfer rate depends on the distance (the inverse of a power of six) between the singlet exciton donor, i.e., the TADF moiety M TADF The length of the bridging unit L decreases exponentially with the distance between the singlet exciton acceptor, i.e., the BN emitter moiety. Thus, the length of the bridging unit L is chosen to minimize the ratio of the Dexter transfer rate to the FRET rate, M TADF and M. BN The distance between the

[0029] In one embodiment of the invention, L comprises, or alternatively consists of, one or more sequentially linked divalent moieties selected from the group consisting of: Direct bond (single bond), Optionally, one or more substituents R L C replaced with 6 -C 60 Arylene, Optionally, one or more substituents R L C replaced with 3 -C 57 Heteroarylene, R L Si(R L 2 ), Si(R L 2 )R L , Si(R L 2 ), and R L Si(R L 2 )R L , Here, R L are, in each occurrence, independently selected from the group consisting of: -C 1 -C 4 Alkyl, C 1 -C 4 Haloalkyl, CN, CF 3 and Ph, optionally substituted with one or more substituents independently selected from the group consisting of -C 1 -C 4 Alkyl, C 1 -C 4 Haloalkyl, CN, CF 3 or Ph, -C 1 -C 4 Alkyl, C 1 -C 4 Haloalkyl, CN, CF 3 or Ph; -C 1 -C4 Alkyl, C 1 -C 4 Haloalkyl, CN, CF 3 and Ph, -C 1 -C 4 Alkyl, C 1 -C 4 Haloalkyl, CN, CF 3 and Ph, -Me, C 1 -C 4 Alkyl, C 1 -C 4 Haloalkyl, CN, CF 3 and Ph, -N(Ph) 2 .

[0030] In one embodiment of the invention, L is selected from the group consisting of: direct binding, Optionally, one or more substituents R L C replaced with 6 -C 60 Arylene, Optionally, one or more substituents R L C replaced with 3 -C 57 Heteroarylene, Optionally, one or more substituents R L C replaced with 6 -C 60 Arylene-C 3 -C 57 Heteroarylene, Optionally, one or more substituents R L C replaced with 3 -C 57 Heteroarylene-C 6 -C 60 Arylene, Optionally, one or more substituents RL C replaced with 6 -C 60 Arylene-C 6 -C 60 Arylene, Optionally, one or more substituents R L C replaced with 3 -C 57 Heteroarylene-C 3 -C 57 Heteroarylene, Optionally, one or more substituents R L C replaced with 6 -C 60 Arylene-C 3 -C 57 Heteroarylene-C 6 -C 60 Arylene, Optionally, one or more substituents R L C replaced with 3 -C 57 Heteroarylene-C 6 -C 60 Arylene-C 3 -C 57 Heteroarylene, Optionally, one or more substituents R L C replaced with 6 -C 60 Arylene-C 6 -C 60 Arylene-C 6 -C 60 Arylene, Optionally, one or more substituents R L C replaced with 3 -C 57 Heteroarylene-C 3 -C 57 Heteroarylene-C 3 -C 57 Heteroarylene, R L Si(R L 2 ), Si(R L 2 )R L , Si(R L 2 ), and RL Si(R L 2 )R L .

[0031] In this embodiment, R L are, in each occurrence, independently selected from the group consisting of: -Me, i Pr, t Bu, CN, CF 3 , -Me, i Pr, t Bu, CN, CF 3 and Ph, optionally substituted with one or more substituents independently selected from the group consisting of -Me, i Pr, t Bu, CN, CF 3 and Ph, -Me, i Pr, t Bu, CN, CF 3 and Ph, -Me, i Pr, t Bu, CN, CF 3 and Ph, -Me, i Pr, t Bu, CN, CF 3 and Ph, -N(Ph) 2 .

[0032] In one embodiment, L is selected from the group consisting of structures of formulas L1-L43: JPEG2025505549000007.jpg13170L1 L2 L3 JPEG2025505549000008.jpg21170L4 L5 L6 JPEG2025505549000009.jpg25170L7 L8 L9 JPEG2025505549000010.jpg20170L10 L11 L12 JPEG2025505549000011.jpg26170L13 L14 L15 JPEG2025505549000012.jpg26170L16 L17 L18 JPEG2025505549000013.jpg26170L19 L20 L20 JPEG2025505549000014.jpg26170L22 L23 L24 JPEG2025505549000015.jpg26170L25 L26 JPEG2025505549000016.jpg26170L27 L28 JPEG2025505549000017.jpg26170L29 L30 L31 JPEG2025505549000018.jpg20170L32 L33 L34 JPEG2025505549000019.jpg25170L32 L33 L34 JPEG2025505549000020.jpg18170L35 L36 L37 JPEG2025505549000021.jpg18170L38 L39 JPEG2025505549000022.jpg13170L40 L41 L42 L43 where $ is the number of L and M TADF and a single bond connecting the two, § is L and M BN and a single bond connecting the two, R L2 is, in each case independently, H, deuterium, Me, t Bu, i It is selected from the group consisting of Pr, Ph and pyridyl.

[0033] In further embodiments, L is selected from the group consisting of structures of formula L1, L2, L4, L8, L12, L35, L36, L37, L40, L41, L42 or L43: JPEG2025505549000023.jpg20170L1 L2 L4 L8 JPEG2025505549000024.jpg18170L12 L35 L36 L37 JPEG2025505549000025.jpg13170L40 L41 L42 L43 In a further embodiment, R L2 is, in each case independently, H, Me, t It is selected from the group consisting of Bu and Ph.

[0034] BN emitter moiety M BN : Emitter materials containing direct BN bonds are known in the art to achieve beneficial emitter properties such as small full width at half maximum (FWHM) emission and high photoluminescence quantum yield (PLQY). Optionally and preferably, the BN material may be a near-range-charge-transfer (NRCT) emitter.

[0035] A class of molecules containing direct BN bonds is the well-known 4,4-difluoro-4-bora-3a,4a-diaza-s-indacene (BODIPY)-based materials, whose structural features and applications in organic electroluminescent devices have been extensively discussed and are common knowledge to those skilled in the art. The prior art also shows how such materials can be synthesized and how to arrive at emitters with specific emission hues.

[0036] See, for example: J. Liao, Y. Wang, Y. 32(1), 56-70, DOI: 10.1080 / 10610278.2019.1691727; M. Poddar, R. Misra, Coordination Chemistry Reviews 2020, 421, 213462-213483; DOI: 10.1016 / j.ccr.2020.213462.

[0037] Those skilled in the art will also recognize that the BODIPY basic structure shown below is JPEG2025505549000026.jpg20170 For example, we are familiar with the fact that they are not ideally suited as emitters in organic electroluminescent devices due to intermolecular π-π interactions and the associated self-quenching.

[0038] It is common knowledge for those skilled in the art that emitter molecules more suitable for organic electroluminescent devices can be reached by attaching bulky groups as substituents to the aforementioned BODIPY core structure. Such bulky groups are, for example, aryl, heteroaryl, alkyl or alkoxy substituents (among many others) or fused polycyclic aromatic or heteroaromatic groups, all of which are optionally substituted. The selection of suitable substituents on the BODIPY core is obvious to those skilled in the art and can be easily derived from the prior art. As well as the numerous synthetic routes that have been established for the synthesis and subsequent modification of such molecules.

[0039] See, for example: BM Squeo, M. Pasini, Supramolecular chemistry 2020, 32(1), 56-70, DOI: 10.1080 / 10610278.2019.1691727; M. Poddar, R. Misra, Coordination Chemistry Reviews 2020, 421, 213462-213483; DOI: 10.1016 / j.ccr.2020.213462.

[0040] Examples of BODIPY-based emitters suitable as BN emitters are shown below: JPEG2025505549000027.jpg71170JPEG2025505549000028.jpg99170JPEG2025505549000029.jpg79170JPEG2025505549000030.jpg36170JPEG2025505549000031.jpg119170This is not to be understood as meaning that BODIPY derivatives having the structural features set forth above and others are not suitable as BN emitters.

[0041] For example, the BODIPY-derived structures disclosed in US2020251663(A1), EP3671884(A1), US20160230960(A1), US20150303378(A1) or derivatives thereof may be suitable BN emitters for use.

[0042] In addition, one or both of the fluorine substituents attached to the central boron atom of the BODIPY core structure may be attached via an oxygen atom, preferably fluorine (F) or trifluoromethyl (CF 3It is known to those skilled in the art that by replacing the alkoxy or aryloxy groups with electron-withdrawing substituents such as aryloxy, ... JPEG2025505549000032.jpg92170JPEG2025505549000033.jpg84170Furthermore, the BODIPY-related boron-containing emitters disclosed in US20190288221(A1) constitute a group of emitters that can provide BN emitters suitable for use according to the present invention.

[0043] In one aspect, the present invention relates to an organic molecule (emitter, particularly an organic molecule (i.e., usable as a FWHM emitter)) that comprises or consists of the structure of the following formula BNE-1:

[0044] [Chemical formula BNE-1] JPEG2025505549000034.jpg81170, where c and d are both integers and are independently selected from 0 and 1; e and f are both integers selected from 0 and 1, where e and f are (always) the same (i.e., both 0 or both 1); g and h are both integers selected from 0 and 1, where g and h are (always) the same (i.e., both 0 or both 1); If d is 0, then e and f are both 1; if d is 1, then e and f are both 0; If c is 0, then g and h are both 1; if c is 1, then g and h are both 0; V 1 is nitrogen (N) and CR BNE-Vis selected from V 2 is nitrogen (N) and CR BNE-I is selected from X 3 is a direct bond, CR BNE-3 R BNE-4 , C=CR BNE-3 R BNE-4 , C=O, C=NR BNE-3 , N.R. BNE-3 , O, SiR BNE-3 R BNE-4 , S, S(O) and S(O) 2 is selected from the group consisting of Y 2 is a direct bond, CR BNE-3’ R BNE-4’ , C=CR BNE-3’ R BNE-4’ , C=O, C=NR BNE-3’ , N.R. BNE-3’ , O, SiR BNE-3’ R BNE-4’ , S, S(O) and S(O) 2 is selected from the group consisting of R BNE-1 , R BNE-2 , R BNE-1’ , R BNE-2’ , R BNE-3 , R BNE-4 , R BNE-3’ , R BNE-4’ , R BNE-I , R BNE-II , R BNE-III , R BNE-IV and R BNE-V are each independently selected from the group consisting of: BN emitter moiety M BN A single bond, hydrogen, deuterium, N(R BNE-5 ) 2 , OR BNE-5 , Si(R BNE-5 ) 3 , B(OR BNE-5 ) 2 , B(R BNE-5 ) 2 , O.S.O. 2 R BNE-5 , C.F. 3 , CN, F, Cl, Br, I, C 1-C 40 Alkyl, This can be optionally substituted with one or more substituents R BNE-5 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R BNE-5 C=CR BNE-5 , C≡C, Si(R BNE-5 ) 2 , Ge(R BNE-5 ) 2 , Sn(R BNE-5 ) 2 , C=O, C=S, C=Se, C=NR BNE-5 , P(=O)(R BNE-5 ), SO, SO 2 , N.R. BNE-5 , O, S or CONR BNE-5 is replaced by C 1 -C 40 Alkoxy, This can be optionally substituted with one or more substituents R BNE-5 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R BNE-5 C=CR BNE-5 , C≡C, Si(R BNE-5 ) 2 , Ge(R BNE-5 ) 2 , Sn(R BNE-5 ) 2 , C=O, C=S, C=Se, C=NR BNE-5 , P(=O)(R BNE-5 ), SO, SO 2 , N.R. BNE-5 , O, S or CONR BNE-5 is replaced by C 1 -C 40 Thioalkoxy, This can be optionally substituted with one or more substituents R BNE-5 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R BNE-5 C=CR BNE-5 , C≡C, Si(R BNE-5 ) 2 , Ge(R BNE-5 ) 2, Sn(R BNE-5 ) 2 , C=O, C=S, C=Se, C=NR BNE-5 , P(=O)(R BNE-5 ), SO, SO 2 , N.R. BNE-5 , O, S or CONR BNE-5 is replaced by C 2 -C 40 Alkenyl, This can be optionally substituted with one or more substituents R BNE-5 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R BNE-5 C=CR BNE-5 , C≡C, Si(R BNE-5 ) 2 , Ge(R BNE-5 ) 2 , Sn(R BNE-5 ) 2 , C=O, C=S, C=Se, C=NR BNE-5 , P(=O)(R BNE-5 ), SO, SO 2 , N.R. BNE-5 , O, S or CONR BNE-5 is replaced by C 2 -C 40 Alkynyl, This can be optionally substituted with one or more substituents R BNE-5 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R BNE-5 C=CR BNE-5 , C≡C, Si(R BNE-5 ) 2 , Ge(R BNE-5 ) 2 , Sn(R BNE-5 ) 2 , C=O, C=S, C=Se, C=NR BNE-5 , P(=O)(R BNE-5 ), SO, SO 2 , N.R. BNE-5 , O, S or CONR BNE-5 is replaced by Optionally, one or more substituents R BNE-5 C replaced with 6 -C60 Aryl, and Optionally, one or more substituents R BNE-5 C replaced with 2 -C 57 Heteroaryl, R BNE-d , R BNE-d’ and R BNE-e are each independently selected from the group consisting of: Hydrogen, deuterium, N(R BNE-5 ) 2 , OR BNE-5 , Si(R BNE-5 ) 3 , B(OR BNE-5 ) 2 , B(R BNE-5 ) 2 , O.S.O. 2 R BNE-5 , C.F. 3 , CN, F, Cl, Br, I, C 1 -C 40 Alkyl, This can be optionally substituted with one or more substituents R BNE-a is replaced by Here, one or more non-adjacent CH 2 The group is optionally R BNE-5 C=CR BNE-5 , C≡C, Si(R BNE-5 ) 2 , Ge(R BNE-5 ) 2 , Sn(R BNE-5 ) 2 , C=O, C=S, C=Se, C=NR BNE-5 , P(=O)(R BNE-5 ), SO, SO 2 , N.R. BNE-5 , O, S or CONR BNE-5 is replaced by C 1 -C 40 Alkoxy, This can be optionally substituted with one or more substituents R BNE-a is replaced by Here, one or more non-adjacent CH 2 The group is optionally R BNE-5 C=CR BNE-5 , C≡C, Si(R BNE-5 )2 , Ge(R BNE-5 ) 2 , Sn(R BNE-5 ) 2 , C=O, C=S, C=Se, C=NR BNE-5 , P(=O)(R BNE-5 ), SO, SO 2 , N.R. BNE-5 , O, S or CONR BNE-5 is replaced by C 1 -C 40 Thioalkoxy, This can be optionally substituted with one or more substituents R BNE-a is replaced by Here, one or more non-adjacent CH 2 The group is optionally R BNE-5 C=CR BNE-5 , C≡C, Si(R BNE-5 ) 2 , Ge(R BNE-5 ) 2 , Sn(R BNE-5 ) 2 , C=O, C=S, C=Se, C=NR BNE-5 , P(=O)(R BNE-5 ), SO, SO 2 , N.R. BNE-5 , O, S or CONR BNE-5 is replaced by C 2 -C 40 Alkenyl, This can be optionally substituted with one or more substituents R BNE-a is replaced by Here, one or more non-adjacent CH 2 The group is optionally R BNE-5 C=CR BNE-5 , C≡C, Si(R BNE-5 ) 2 , Ge(R BNE-5 ) 2 , Sn(R BNE-5 ) 2 , C=O, C=S, C=Se, C=NR BNE-5 , P(=O)(R BNE-5 ), SO, SO 2 , N.R. BNE-5 , O, S or CONR BNE-5 is replaced by C2 -C 40 Alkynyl, This can be optionally substituted with one or more substituents R BNE-a is replaced by Here, one or more non-adjacent CH 2 The group is optionally R BNE-5 C=CR BNE-5 , C≡C, Si(R BNE-5 ) 2 , Ge(R BNE-5 ) 2 , Sn(R BNE-5 ) 2 , C=O, C=S, C=Se, C=NR BNE-5 , P(=O)(R BNE-5 ), SO, SO 2 , N.R. BNE-5 , O, S or CONR BNE-5 is replaced by Optionally, one or more substituents R BNE-a C replaced with 6 -C 60 Aryl, and Optionally, one or more substituents R BNE-a C replaced with 2 -C 57 Heteroaryl, R BNE-a are, in each occurrence, independently selected from the group consisting of: Hydrogen, deuterium, N(R BNE-5 ) 2 , OR BNE-5 , Si(R BNE-5 ) 3 , B(OR BNE-5 ) 2 , B(R BNE-5 ) 2 , O.S.O. 2 R BNE-5 , C.F. 3 , CN, F, Cl, Br, I, C 1 -C 40 Alkyl, This can be optionally substituted with one or more substituents R BNE-5 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R BNE-5 C=CR BNE-5, C≡C, Si(R BNE-5 ) 2 , Ge(R BNE-5 ) 2 , Sn(R BNE-5 ) 2 , C=O, C=S, C=Se, C=NR BNE-5 , P(=O)(R BNE-5 ), SO, SO 2 , N.R. BNE-5 , O, S or CONR BNE-5 is replaced by C 1 -C 40 Alkoxy, This can be optionally substituted with one or more substituents R BNE-5 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R BNE-5 C=CR BNE-5 , C≡C, Si(R BNE-5 ) 2 , Ge(R BNE-5 ) 2 , Sn(R BNE-5 ) 2 , C=O, C=S, C=Se, C=NR BNE-5 , P(=O)(R BNE-5 ), SO, SO 2 , N.R. BNE-5 , O, S or CONR BNE-5 is replaced by C 1 -C 40 Thioalkoxy, This can be optionally substituted with one or more substituents R BNE-5 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R BNE-5 C=CR BNE-5 , C≡C, Si(R BNE-5 ) 2 , Ge(R BNE-5 ) 2 , Sn(R BNE-5 ) 2 , C=O, C=S, C=Se, C=NR BNE-5 , P(=O)(R BNE-5 ), SO, SO 2 , N.R. BNE-5 , O, S or CONR BNE-5is replaced by C 2 -C 40 Alkenyl, This can be optionally substituted with one or more substituents R BNE-5 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R BNE-5 C=CR BNE-5 , C≡C, Si(R BNE-5 ) 2 , Ge(R BNE-5 ) 2 , Sn(R BNE-5 ) 2 , C=O, C=S, C=Se, C=NR BNE-5 , P(=O)(R BNE-5 ), SO, SO 2 , N.R. BNE-5 , O, S or CONR BNE-5 is replaced by C 2 -C 40 Alkynyl, This can be optionally substituted with one or more substituents R BNE-5 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R BNE-5 C=CR BNE-5 , C≡C, Si(R BNE-5 ) 2 , Ge(R BNE-5 ) 2 , Sn(R BNE-5 ) 2 , C=O, C=S, C=Se, C=NR BNE-5 , P(=O)(R BNE-5 ), SO, SO 2 , N.R. BNE-5 , O, S or CONR BNE-5 is replaced by Optionally, one or more substituents R BNE-5 C replaced with 6 -C 60 Aryl, and Optionally, one or more substituents R BNE-5 C replaced with 2 -C 57 Heteroaryl, R BNE-5are, in each occurrence, independently selected from the group consisting of: Hydrogen, deuterium, N(R BNE-6 ) 2 , OR BNE-6 , Si(R BNE-6 ) 3 , B(OR BNE-6 ) 2 , B(R BNE-6 ) 2 , O.S.O. 2 R BNE-6 , C.F. 3 , CN, F, Cl, Br, I, C 1 -C 40 Alkyl, This can be optionally substituted with one or more substituents R BNE-6 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R BNE-6 C=CR BNE-6 , C≡C, Si(R BNE-6 ) 2 , Ge(R BNE-6 ) 2 , Sn(R BNE-6 ) 2 , C=O, C=S, C=Se, C=NR BNE-6 , P(=O)(R BNE-6 ), SO, SO 2 , N.R. BNE-6 , O, S or CONR BNE-6 is replaced by C 1 -C 40 Alkoxy, This can be optionally substituted with one or more substituents R BNE-6 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R BNE-6 C=CR BNE-6 , C≡C, Si(R BNE-6 ) 2 , Ge(R BNE-6 ) 2 , Sn(R BNE-6 ) 2 , C=O, C=S, C=Se, C=NR BNE-6 , P(=O)(R BNE-6 ), SO, SO 2 , N.R.BNE-6 , O, S or CONR BNE-6 is replaced by C 1 -C 40 Thioalkoxy, This can be optionally substituted with one or more substituents R BNE-6 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R BNE-6 C=CR BNE-6 , C≡C, Si(R BNE-6 ) 2 , Ge(R BNE-6 ) 2 , Sn(R BNE-6 ) 2 , C=O, C=S, C=Se, C=NR BNE-6 , P(=O)(R BNE-6 ), SO, SO 2 , N.R. BNE-6 , O, S or CONR BNE-6 is replaced by C 2 -C 40 Alkenyl, This can be optionally substituted with one or more substituents R BNE-6 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R BNE-6 C=CR BNE-6 , C≡C, Si(R BNE-6 ) 2 , Ge(R BNE-6 ) 2 , Sn(R BNE-6 ) 2 , C=O, C=S, C=Se, C=NR BNE-6 , P(=O)(R BNE-6 ), SO, SO 2 , N.R. BNE-6 , O, S or CONR BNE-6 is replaced by C 2 -C 40 Alkynyl, This can be optionally substituted with one or more substituents R BNE-6 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R BNE-6 C=CRBNE-6 , C≡C, Si(R BNE-6 ) 2 , Ge(R BNE-6 ) 2 , Sn(R BNE-6 ) 2 , C=O, C=S, C=Se, C=NR BNE-6 , P(=O)(R BNE-6 ), SO, SO 2 , N.R. BNE-6 , O, S or CONR BNE-6 is replaced by Optionally, one or more substituents R BNE-6 C replaced with 6 -C 60 Aryl, and Optionally, one or more substituents R BNE-6 C replaced with 2 -C 57 Heteroaryl, R BNE-6 are, in each occurrence, independently selected from the group consisting of: Hydrogen, deuterium, OPh, CF 3 ,C.N.,F. C 1 -C 5 Alkyl, wherein optionally one or more hydrogen atoms are independently selected from deuterium, CN, CF 3 Substituted with Ph or F, C 1 -C 5 Alkoxy, wherein optionally one or more hydrogen atoms are independently selected from deuterium, CN, CF 3 or replaced by F, C 1 -C 5 Thioalkoxy, wherein optionally one or more hydrogen atoms are independently selected from deuterium, CN, CF 3 or replaced by F, C 2 -C 5 Alkenyl, wherein optionally one or more hydrogen atoms are independently selected from deuterium, CN, CF 3 or replaced by F, C 2-C 5 Alkynyl, wherein optionally one or more hydrogen atoms are independently selected from deuterium, CN, CF 3 or replaced by F, Optionally, 1 or more C 1 -C 5 C substituted with alkyl substituents 6 -C 18 Aryl, Optionally, 1 or more C 1 -C 5 C substituted with alkyl substituents 2 -C 17 Heteroaryl, N(C 6 -C 18 Aryl) 2 , N(C 2 -C 17 Heteroaryl) 2 , and N(C 2 -C 17 Heteroaryl)(C 6 -C 18 aryl), Here, R BNE-III and R BNE-e selectively bonds to form a direct single bond, where two or more substituents R BNE-a , R BNE-d , R BNE-d’ , R BNE-e , R BNE-3’ , R BNE-4’ and R BNE-5 optionally form monocyclic or polycyclic, aliphatic or aromatic or heteroaromatic, carbocyclic or heterocyclic ring systems with each other, where two or more substituents R BNE-1 , R BNE-2 , R BNE-1’ , R BNE-2’ , R BNE-3 , R BNE-4 , R BNE-5 , R BNE-I , R BNE-II , R BNE-III , R BNE-IV and R BNE-Voptionally form monocyclic or polycyclic, aliphatic or aromatic or heteroaromatic, carbocyclic or heterocyclic ring systems with each other, wherein optionally two or more, preferably two, structures of the formula BNE-1 are joined to each other, preferably condensed to each other by sharing at least one, more preferably exactly one bond; wherein optionally two or more, preferably two, structures of formula BNE-1 are present in the organic molecule and share at least one, preferably exactly one, aromatic or heteroaromatic ring (i.e., the ring is part of the two structures of formula BNE-1), which is preferably any one of rings a, b, and c' of formula BNE-1, but R BNE-1 , R BNE-2 , R BNE-1’ , R BNE-2’ , R BNE-3 , R BNE-4 , R BNE-3’ , R BNE-4’ , R BNE-5 , R BNE-6 , R BNE-I , R BNE-II , R BNE-III , R BNE-IV , R BNE-V , R BNE-a , R BNE-e , R BNE-d and R BNE-d’ or any aromatic or heteroaromatic ring formed by two or more substituents as above, wherein the shared ring may constitute the same or different moieties of two or more structures of formula BNE-1 that share the ring (i.e., the shared ring is, for example, ring c' of two structures of formula BNE-1 selectively contained in the organic molecule, or the shared ring is, for example, ring b of one structure of formula BNE-1 and ring c' of another structure selectively contained in the organic molecule); where, optionally, any R BNE-1 , R BNE-2 , R BNE-1’ , R BNE-2’ , R BNE-3 , R BNE-4 , R BNE-5 , RBNE-3’ , R BNE-4’ , R BNE-6 , R BNE-I , R BNE-II , R BNE-III , R BNE-IV , R BNE-V , R BNE-a , R BNE-e , R BNE-d or R BNE-d’ is replaced by a bond to a further chemical entity of formula BNE-1, and / or any R BNE-1 , R BNE-2 , R BNE-1’ , R BNE-2’ , R BNE-3 , R BNE-4 , R BNE-5 , R BNE-3’ , R BNE-4’ , R BNE-6 , R BNE-I , R BNE-II , R BNE-III , R BNE-IV , R BNE-V , R BNE-a , R BNE-e , R BNE-d or R BNE-d’ is replaced by a bond to a further chemical entity of formula BNE-1.

[0045] According to the present invention, typically, a BN emitter moiety M BN Exactly one substituent of the BN emitter moiety M BN to the bridging unit L.

[0046] In one embodiment of the invention, in at least one, and preferably each, light-emitting layer B, at least one of the one or more organic molecules (e.g., usable as an organic molecule (e.g., usable as a FWHM emitter)) comprises a structure of the chemical formula BNE-1.

[0047] In one embodiment of the present invention, in at least one, and preferably each, light-emitting layer B, each organic molecule (eg, usable as a FWHM emitter) comprises a structure of the chemical formula BNE-1.

[0048] In one embodiment of the present invention, in at least one, and preferably each, light-emitting layer B, at least one of the one or more organic molecules (eg, usable as FWHM emitters) has the structure of the chemical formula BNE-1.

[0049] In one embodiment of the present invention, in at least one, and preferably each, light-emitting layer B, each organic molecule (eg, usable as a FWHM emitter) has the structure of the chemical formula BNE-1.

[0050] In one embodiment of the present invention, at least one, preferably each, of the one or more organic molecules (e.g., usable as FWHM emitters) in at least one, preferably each, emissive layer B comprises or consists of the structure of the formula BNE-1, 1 is CR BNE-V and V 2 is CR BNE-I It is.

[0051] In one embodiment of the present invention, at least one, preferably each, of the one or more organic molecules (e.g., usable as FWHM emitters) in at least one, preferably each, emissive layer B comprises or consists of the structure of the formula BNE-1, 1 and V 2 are both nitrogen (N).

[0052] In one embodiment of the present invention, at least one, preferably each, of the one or more organic molecules (e.g., usable as FWHM emitters) in at least one, preferably each, emissive layer B comprises or consists of the structure of the formula BNE-1, 1 is nitrogen (N) and V 2 is CR BNE-I It is.

[0053] In one embodiment of the present invention, at least one, preferably each, of the one or more organic molecules (e.g., usable as FWHM emitters) in at least one, preferably each, emissive layer B comprises or consists of the structure of the formula BNE-1, 1 is CR BNE-V and V 2 is nitrogen (N).

[0054] In one embodiment of the invention, in at least one, and preferably each, light-emitting layer B, at least one, and preferably each, of the one or more organic molecules (e.g., usable as FWHM emitters) comprises or consists of a structure of formula BNE-1, where c and d are both 0.

[0055] In one embodiment of the invention, in at least one, and preferably each, light-emitting layer B, at least one, and preferably each, of the one or more organic molecules (e.g., usable as FWHM emitters) comprises or consists of a structure of formula BNE-1, where c is 0 and d is 1.

[0056] In one embodiment of the invention, in at least one, and preferably each, light-emitting layer B, at least one, and preferably each, of the one or more organic molecules (e.g., usable as FWHM emitters) comprises or consists of a structure of formula BNE-1, where c is 1 and d is 0.

[0057] In a preferred embodiment of the invention, in at least one, and preferably each, light-emitting layer B, at least one, and preferably each, of the one or more organic molecules (e.g., usable as FWHM emitters) comprises or consists of a structure of formula BNE-1, where c and d are both 1.

[0058] In one embodiment of the invention, at least one, and preferably each, of the one or more organic molecules (e.g. usable as FWHM emitters) in at least one, and preferably each, light-emitting layer B comprises or consists of a structure of the formula BNE-1, X 3 is a direct bond, CR BNE-3 R BNE-4 , C=O, NR BNE-3 , O, S, SiR BNE-3 R BNE-4 is selected from the group consisting of Y 2 is a direct bond, CR BNE-3’ R BNE-4’ , C=O, NR BNE-3’ , O, S, SiR BNE-3’ R BNE-4’ is selected from the group consisting of:

[0059] In one embodiment of the invention, at least one, and preferably each, of the one or more organic molecules (e.g. usable as FWHM emitters) in at least one, and preferably each, light-emitting layer B comprises or consists of a structure of the formula BNE-1, X 3 is a direct bond, CR BNE-3 R BNE-4 , N.R. BNE-3 , O, S, SiR BNE-3 R BNE-4 is selected from the group consisting of Y 2 is a direct bond, CR BNE-3’ R BNE-4’ , N.R. BNE-3’ , O, S, SiR BNE-3’ R BNE-4’ is selected from the group consisting of:

[0060] In one embodiment of the invention, at least one, and preferably each, of the one or more organic molecules (e.g. usable as FWHM emitters) in at least one, and preferably each, light-emitting layer B comprises or consists of a structure of the formula BNE-1, X 3 is a direct bond, CRBNE-3 R BNE-4 , N.R. BNE-3 , O, S, SiR BNE-3 R BNE-4 is selected from the group consisting of Y 2 is a direct bond.

[0061] In one embodiment of the invention, at least one, and preferably each, of the one or more organic molecules (e.g. usable as FWHM emitters) in at least one, and preferably each, light-emitting layer B comprises or consists of a structure of the formula BNE-1, X 3 is a direct bond or NR BNE-3 and Y 2 is a direct bond.

[0062] In one embodiment of the invention, at least one, and preferably each, of the one or more organic molecules (e.g. usable as FWHM emitters) in at least one, and preferably each, light-emitting layer B comprises or consists of a structure of the formula BNE-1, X 3 is NR BNE-3 and Y 2 is a direct bond.

[0063] In one embodiment of the invention, at least one, and preferably each, of the one or more organic molecules (e.g. usable as FWHM emitters) in at least one, and preferably each, light-emitting layer B comprises or consists of a structure of the formula BNE-1, R BNE-1 , R BNE-2 , R BNE-1’ , R BNE-2’ , R BNE-3 , R BNE-4 , R BNE-3’ , R BNE-4’ , R BNE-I , R BNE-II , R BNE-III , R BNE-IV and R BNE-Vare each independently selected from the group consisting of: BN emitter moiety M BN A single bond, hydrogen, deuterium, N(R BNE-5 ) 2 , OR BNE-5 , Si(R BNE-5 ) 3 , B(OR BNE-5 ) 2 , B(R BNE-5 ) 2 , O.S.O. 2 R BNE-5 , C.F. 3 , CN, F, Cl, Br, I, C 1 -C 40 Alkyl, This can be optionally substituted with one or more substituents R BNE-5 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R BNE-5 C=CR BNE-5 , C≡C, Si(R BNE-5 ) 2 , Ge(R BNE-5 ) 2 , Sn(R BNE-5 ) 2 , C=O, C=S, C=Se, C=NR BNE-5 , P(=O)(R BNE-5 ), SO, SO 2 , N.R. BNE-5 , O, S or CONR BNE-5 is replaced by C 1 -C 40 Alkoxy, This can be optionally substituted with one or more substituents R BNE-5 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R BNE-5 C=CR BNE-5 , C≡C, Si(R BNE-5 ) 2 , Ge(R BNE-5 ) 2 , Sn(R BNE-5 ) 2 , C=O, C=S, C=Se, C=NR BNE-5 , P(=O)(RBNE-5 ), SO, SO 2 , N.R. BNE-5 , O, S or CONR BNE-5 is replaced by C 1 -C 40 Thioalkoxy, This can be optionally substituted with one or more substituents R BNE-5 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R BNE-5 C=CR BNE-5 , C≡C, Si(R BNE-5 ) 2 , Ge(R BNE-5 ) 2 , Sn(R BNE-5 ) 2 , C=O, C=S, C=Se, C=NR BNE-5 , P(=O)(R BNE-5 ), SO, SO 2 , N.R. BNE-5 , O, S or CONR BNE-5 is replaced by C 2 -C 40 Alkenyl, This can be optionally substituted with one or more substituents R BNE-5 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R BNE-5 C=CR BNE-5 , C≡C, Si(R BNE-5 ) 2 , Ge(R BNE-5 ) 2 , Sn(R BNE-5 ) 2 , C=O, C=S, C=Se, C=NR BNE-5 , P(=O)(R BNE-5 ), SO, SO 2 , N.R. BNE-5 , O, S or CONR BNE-5 is replaced by C 2 -C 40 Alkynyl, This can be optionally substituted with one or more substituents R BNE-5 is replaced by Here, one or more non-adjacent CH 2The group is optionally R BNE-5 C=CR BNE-5 , C≡C, Si(R BNE-5 ) 2 , Ge(R BNE-5 ) 2 , Sn(R BNE-5 ) 2 , C=O, C=S, C=Se, C=NR BNE-5 , P(=O)(R BNE-5 ), SO, SO 2 , N.R. BNE-5 , O, S or CONR BNE-5 is replaced by Optionally, one or more substituents R BNE-5 C replaced with 6 -C 60 Aryl, and Optionally, one or more substituents R BNE-5 C replaced with 2 -C 57 Heteroaryl, R BNE-d , R BNE-d’ and R BNE-e are each independently selected from the group consisting of: Hydrogen, deuterium, CF 3 , CN, F, Cl, Br, I, C 1 -C 40 Alkyl, This can be optionally substituted with one or more substituents R BNE-a is replaced by Here, one or more non-adjacent CH 2 The group is optionally R BNE-5 C=CR BNE-5 , C≡C, Si(R BNE-5 ) 2 , Ge(R BNE-5 ) 2 , Sn(R BNE-5 ) 2 , C=O, C=S, C=Se, C=NR BNE-5 , P(=O)(R BNE-5 ), SO, SO 2 , N.R. BNE-5 , O, S or CONR BNE-5 is replaced by Optionally, one or more substituents R BNE-a C replaced with 6 -C60 Aryl, and Optionally, one or more substituents R BNE-a C replaced with 2 -C 57 Heteroaryl, R BNE-a are, in each occurrence, independently selected from the group consisting of: Hydrogen, deuterium, N(R BNE-5 ) 2 , OR BNE-5 , Si(R BNE-5 ) 3 , B(OR BNE-5 ) 2 , B(R BNE-5 ) 2 , O.S.O. 2 R BNE-5 , C.F. 3 , CN, F, Cl, Br, I, C 1 -C 40 Alkyl, This can be optionally substituted with one or more substituents R BNE-5 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R BNE-5 C=CR BNE-5 , C≡C, Si(R BNE-5 ) 2 , Ge(R BNE-5 ) 2 , Sn(R BNE-5 ) 2 , C=O, C=S, C=Se, C=NR BNE-5 , P(=O)(R BNE-5 ), SO, SO 2 , N.R. BNE-5 , O, S or CONR BNE-5 is replaced by C 1 -C 40 Alkoxy, This can be optionally substituted with one or more substituents R BNE-5 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R BNE-5 C=CR BNE-5 , C≡C, Si(R BNE-5 ) 2 , Ge(R BNE-5) 2 , Sn(R BNE-5 ) 2 , C=O, C=S, C=Se, C=NR BNE-5 , P(=O)(R BNE-5 ), SO, SO 2 , N.R. BNE-5 , O, S or CONR BNE-5 is replaced by C 1 -C 40 Thioalkoxy, This can be optionally substituted with one or more substituents R BNE-5 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R BNE-5 C=CR BNE-5 , C≡C, Si(R BNE-5 ) 2 , Ge(R BNE-5 ) 2 , Sn(R BNE-5 ) 2 , C=O, C=S, C=Se, C=NR BNE-5 , P(=O)(R BNE-5 ), SO, SO 2 , N.R. BNE-5 , O, S or CONR BNE-5 is replaced by C 2 -C 40 Alkenyl, This can be optionally substituted with one or more substituents R BNE-5 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R BNE-5 C=CR BNE-5 , C≡C, Si(R BNE-5 ) 2 , Ge(R BNE-5 ) 2 , Sn(R BNE-5 ) 2 , C=O, C=S, C=Se, C=NR BNE-5 , P(=O)(R BNE-5 ), SO, SO 2 , N.R. BNE-5 , O, S or CONR BNE-5 is replaced by C 2 -C 40 Alkynyl, This can be optionally substituted with one or more substituents R BNE-5 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R BNE-5 C=CR BNE-5 , C≡C, Si(R BNE-5 ) 2 , Ge(R BNE-5 ) 2 , Sn(R BNE-5 ) 2 , C=O, C=S, C=Se, C=NR BNE-5 , P(=O)(R BNE-5 ), SO, SO 2 , N.R. BNE-5 , O, S or CONR BNE-5 is replaced by Optionally, one or more substituents R BNE-5 C replaced with 6 -C 60 Aryl, and Optionally, one or more substituents R BNE-5 C replaced with 2 -C 57 Heteroaryl, R BNE-5 are, in each occurrence, independently selected from the group consisting of: Hydrogen, deuterium, N(R BNE-6 ) 2 , OR BNE-6 , Si(R BNE-6 ) 3 , B(OR BNE-6 ) 2 , B(R BNE-6 ) 2 , O.S.O. 2 R BNE-6 , C.F. 3 , CN, F, Cl, Br, I, C 1 -C 40 Alkyl, This can be optionally substituted with one or more substituents R BNE-6 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R BNE-6 C=CR BNE-6 , C≡C, Si(R BNE-6 ) 2 , Ge(RBNE-6 ) 2 , Sn(R BNE-6 ) 2 , C=O, C=S, C=Se, C=NR BNE-6 , P(=O)(R BNE-6 ), SO, SO 2 , N.R. BNE-6 , O, S or CONR BNE-6 is replaced by C 1 -C 40 Alkoxy, This can be optionally substituted with one or more substituents R BNE-6 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R BNE-6 C=CR BNE-6 , C≡C, Si(R BNE-6 ) 2 , Ge(R BNE-6 ) 2 , Sn(R BNE-6 ) 2 , C=O, C=S, C=Se, C=NR BNE-6 , P(=O)(R BNE-6 ), SO, SO 2 , N.R. BNE-6 , O, S or CONR BNE-6 is replaced by C 1 -C 40 Thioalkoxy, This can be optionally substituted with one or more substituents R BNE-6 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R BNE-6 C=CR BNE-6 , C≡C, Si(R BNE-6 ) 2 , Ge(R BNE-6 ) 2 , Sn(R BNE-6 ) 2 , C=O, C=S, C=Se, C=NR BNE-6 , P(=O)(R BNE-6 ), SO, SO 2 , N.R. BNE-6 , O, S or CONR BNE-6 is replaced by C 2 -C40 Alkenyl, This can be optionally substituted with one or more substituents R BNE-6 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R BNE-6 C=CR BNE-6 , C≡C, Si(R BNE-6 ) 2 , Ge(R BNE-6 ) 2 , Sn(R BNE-6 ) 2 , C=O, C=S, C=Se, C=NR BNE-6 , P(=O)(R BNE-6 ), SO, SO 2 , N.R. BNE-6 , O, S or CONR BNE-6 is replaced by C 2 -C 40 Alkynyl, This can be optionally substituted with one or more substituents R BNE-6 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R BNE-6 C=CR BNE-6 , C≡C, Si(R BNE-6 ) 2 , Ge(R BNE-6 ) 2 , Sn(R BNE-6 ) 2 , C=O, C=S, C=Se, C=NR BNE-6 , P(=O)(R BNE-6 ), SO, SO 2 , N.R. BNE-6 , O, S or CONR BNE-6 is replaced by Optionally, one or more substituents R BNE-6 C replaced with 6 -C 60 Aryl, and Optionally, one or more substituents R BNE-6 C replaced with 2 -C 57 Heteroaryl, R BNE-6 are, in each occurrence, independently selected from the group consisting of: Hydrogen, deuterium, OPh, CF 3 ,C.N.,F. C 1 -C 5 Alkyl, wherein optionally one or more hydrogen atoms are independently selected from deuterium, CN, CF 3 , substituted with Ph or F; C 1 -C 5 Alkoxy, wherein optionally one or more hydrogen atoms are independently selected from deuterium, CN, CF 3 or replaced by F, C 1 -C 5 Thioalkoxy, wherein optionally one or more hydrogen atoms are independently selected from deuterium, CN, CF 3 or replaced by F, C 2 -C 5 Alkenyl, wherein optionally one or more hydrogen atoms are independently selected from deuterium, CN, CF 3 or replaced by F, C 2 -C 5 Alkynyl, wherein optionally one or more hydrogen atoms are independently selected from deuterium, CN, CF 3 or replaced by F, Optionally, 1 or more C 1 -C 5 C substituted with alkyl substituents 6 -C 18 Aryl, Optionally, 1 or more C 1 -C 5 C substituted with alkyl substituents 2 -C 17 Heteroaryl, N(C 6 -C 18 Aryl) 2 , N(C 2 -C 17 Heteroaryl) 2 , and N(C 2 -C 17Heteroaryl)(C 6 -C 18 aryl), Here, R BNE-III and R BNE-e selectively bonds to form a direct single bond, where two or more substituents R BNE-a , R BNE-d , R BNE-d’ , R BNE-e , R BNE-3’ , R BNE-4’ and R BNE-5 optionally form monocyclic or polycyclic, aliphatic or aromatic or heteroaromatic, carbocyclic or heterocyclic ring systems with each other, where two or more substituents R BNE-1 , R BNE-2 , R BNE-1’ , R BNE-2’ , R BNE-3 , R BNE-4 , R BNE-5 , R BNE-I , R BNE-II , R BNE-III , R BNE-IV and R BNE-V optionally form monocyclic or polycyclic, aliphatic or aromatic or heteroaromatic, carbocyclic or heterocyclic ring systems with each other, wherein optionally two or more, preferably two, structures of the formula BNE-1 are joined to each other, preferably condensed to each other by sharing at least one, more preferably exactly one bond; wherein optionally two or more, preferably two, structures of formula BNE-1 are present in the organic molecule and share at least one, preferably exactly one, aromatic or heteroaromatic ring (i.e., the ring is part of the two structures of formula BNE-1), which is preferably any one of rings a, b, and c' of formula BNE-1, but R BNE-1 , R BNE-2 , R BNE-1’ , R BNE-2’ , R BNE-3 , R BNE-4 , R BNE-3’ , R BNE-4’ , R BNE-5 , R BNE-6 , R BNE-I , R BNE-II, R BNE-III , R BNE-IV , R BNE-V , R BNE-a , R BNE-e , R BNE-d and R BNE-d’ or any aromatic or heteroaromatic ring formed by two or more substituents as above, wherein the shared ring may constitute the same or different moieties of two or more structures of formula BNE-1 that share the ring (i.e., the shared ring is, for example, ring c' of two structures of formula BNE-1 selectively contained in the organic molecule, or the shared ring is, for example, ring b of one structure of formula BNE-1 and ring c' of another structure selectively contained in the organic molecule); where, optionally, any R BNE-1 , R BNE-2 , R BNE-1’ , R BNE-2’ , R BNE-3 , R BNE-4 , R BNE-5 , R BNE-3’ , R BNE-4’ , R BNE-6 , R BNE-I , R BNE-II , R BNE-III , R BNE-IV , R BNE-V , R BNE-a , R BNE-e , R BNE-d or R BNE-d’ is replaced by a bond to a further chemical entity of formula BNE-1, and / or any R BNE-1 , R BNE-2 , R BNE-1’ , R BNE-2’ , R BNE-3 , R BNE-4 , R BNE-5 , R BNE-3’ , R BNE-4’ , R BNE-6 , R BNE-I , R BNE-II , R BNE-III , R BNE-IV , R BNE-V , R BNE-a , R BNE-e , R BNE-d or R BNE-d’is replaced by a bond to a further chemical entity of formula BNE-1.

[0064] In one embodiment of the invention, at least one, and preferably each, of the one or more organic molecules (e.g. usable as FWHM emitters) in at least one, and preferably each, light-emitting layer B comprises or consists of a structure of the formula BNE-1, R BNE-1 , R BNE-2 , R BNE-1’ , R BNE-2’ , R BNE-3 , R BNE-4 , R BNE-3’ , R BNE-4’ , R BNE-I , R BNE-II , R BNE-III , R BNE-IV and R BNE-V are each independently selected from the group consisting of: Hydrogen, deuterium, N(R BNE-5 ) 2 , OR BNE-5 , Si(R BNE-5 ) 3 , B(R BNE-5 ) 2 , O.S.O. 2 R BNE-5 , C.F. 3 , CN, F, Cl, Br, I, C 1 -C 18 Alkyl, This can be optionally substituted with one or more substituents R BNE-5 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R BNE-5 C=CR BNE-5 , C≡C, Si(R BNE-5 ) 2 , Ge(R BNE-5 ) 2 , Sn(R BNE-5 ) 2 , C=O, C=S, C=Se, C=NR BNE-5 , P(=O)(R BNE-5 ), SO, SO 2 , N.R. BNE-5, O, S or CONR BNE-5 is replaced by Optionally, one or more substituents R BNE-5 C replaced with 6 -C 30 Aryl, and Optionally, one or more substituents R BNE-5 C replaced with 2 -C 29 Heteroaryl, R BNE-d , R BNE-d’ and R BNE-e are each independently selected from the group consisting of: Hydrogen, deuterium, CF 3 , CN, F, Cl, Br, I, C 1 -C 18 Alkyl, This can be optionally substituted with one or more substituents R BNE-a is replaced by Here, one or more non-adjacent CH 2 The group is optionally R BNE-5 C=CR BNE-5 , C≡C, Si(R BNE-5 ) 2 , Ge(R BNE-5 ) 2 , Sn(R BNE-5 ) 2 , C=O, C=S, C=Se, C=NR BNE-5 , P(=O)(R BNE-5 ), SO, SO 2 , N.R. BNE-5 , O, S or CONR BNE-5 is replaced by Optionally, one or more substituents R BNE-a C replaced with 6 -C 30 Aryl, and Optionally, one or more substituents R BNE-a C replaced with 2 -C 29 Heteroaryl, R BNE-a are, in each occurrence, independently selected from the group consisting of: Hydrogen, deuterium, N(R BNE-5 ) 2 , OR BNE-5, Si(R BNE-5 ) 3 , B(R BNE-5 ) 2 , C.F. 3 , CN, F, Cl, Br, I, C 1 -C 18 Alkyl, This can be optionally substituted with one or more substituents R BNE-5 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R BNE-5 C=CR BNE-5 , C≡C, Si(R BNE-5 ) 2 , Ge(R BNE-5 ) 2 , Sn(R BNE-5 ) 2 , C=O, C=S, C=Se, C=NR BNE-5 , P(=O)(R BNE-5 ), SO, SO 2 , N.R. BNE-5 , O, S or CONR BNE-5 is replaced by Optionally, one or more substituents R BNE-5 C replaced with 6 -C 30 Aryl, and Optionally, one or more substituents R BNE-5 C replaced with 2 -C 29 Heteroaryl, R BNE-5 are, in each occurrence, independently selected from the group consisting of: Hydrogen, deuterium, OPh, CF 3 ,C.N.,F. C 1 -C 5 Alkyl, wherein optionally one or more hydrogen atoms are independently selected from deuterium, CN, CF 3 , substituted with Ph or F; C 1 -C 5 Alkoxy, wherein optionally one or more hydrogen atoms are independently selected from deuterium, CN, CF 3 or replaced by F, C 1 -C 5 Thioalkoxy, wherein optionally one or more hydrogen atoms are independently selected from deuterium, CN, CF 3 or replaced by F, C 2 -C 5 Alkenyl, wherein optionally one or more hydrogen atoms are independently selected from deuterium, CN, CF 3 or replaced by F, C 2 -C 5 Alkynyl, wherein optionally one or more hydrogen atoms are independently selected from deuterium, CN, CF 3 or replaced by F, Optionally, 1 or more C 1 -C 5 C substituted with alkyl substituents 6 -C 18 Aryl, Optionally, 1 or more C 1 -C 5 C substituted with alkyl substituents 2 -C 17 Heteroaryl, N(C 6 -C 18 Aryl) 2 , N(C 2 -C 17 Heteroaryl) 2 , and N(C 2 -C 17 Heteroaryl)(C 6 -C 18 aryl), Here, R BNE-III and R BNE-e selectively bonds to form a direct single bond, where two or more substituents R BNE-a , R BNE-d , R BNE-d’ , R BNE-e , R BNE-3’ , R BNE-4’ and R BNE-5optionally form monocyclic or polycyclic, aliphatic or aromatic or heteroaromatic, carbocyclic or heterocyclic ring systems with each other, where two or more substituents R BNE-1 , R BNE-2 , R BNE-1’ , R BNE-2’ , R BNE-3 , R BNE-4 , R BNE-5 , R BNE-I , R BNE-II , R BNE-III , R BNE-IV and R BNE-V optionally form monocyclic or polycyclic, aliphatic or aromatic or heteroaromatic, carbocyclic or heterocyclic ring systems with each other, wherein optionally two or more, preferably two, structures of the formula BNE-1 are joined to each other, preferably condensed to each other by sharing at least one, more preferably exactly one bond; wherein optionally two or more, preferably two, structures of formula BNE-1 are present in the organic molecule and share at least one, preferably exactly one, aromatic or heteroaromatic ring (i.e., the ring is part of the two structures of formula BNE-1), which is preferably any one of rings a, b, and c' of formula BNE-1, but R BNE-1 , R BNE-2 , R BNE-1’ , R BNE-2’ , R BNE-3 , R BNE-4 , R BNE-3’ , R BNE-4’ , R BNE-5 , R BNE-6 , R BNE-I , R BNE-II , R BNE-III , R BNE-IV , R BNE-V , R BNE-a , R BNE-e , R BNE-d and R BNE-d’or any aromatic or heteroaromatic ring formed by two or more substituents as above, wherein the shared ring may constitute the same or different moieties of two or more structures of formula BNE-1 that share the ring (i.e., the shared ring is, for example, ring c' of two structures of formula BNE-1 selectively contained in the organic molecule, or the shared ring is, for example, ring b of one structure of formula BNE-1 and ring c' of another structure selectively contained in the organic molecule); where, optionally, any R BNE-1 , R BNE-2 , R BNE-1’ , R BNE-2’ , R BNE-3 , R BNE-4 , R BNE-5 , R BNE-3’ , R BNE-4’ , R BNE-6 , R BNE-I , R BNE-II , R BNE-III , R BNE-IV , R BNE-V , R BNE-a , R BNE-e , R BNE-d or R BNE-d’ is replaced by a bond to a further chemical entity of formula BNE-1, and / or any R BNE-1 , R BNE-2 , R BNE-1’ , R BNE-2’ , R BNE-3 , R BNE-4 , R BNE-5 , R BNE-3’ , R BNE-4’ , R BNE-6 , R BNE-I , R BNE-II , R BNE-III , R BNE-IV , R BNE-V , R BNE-a , R BNE-e , R BNE-d or R BNE-d’ is replaced by a bond to a further chemical entity of formula BNE-1.

[0065] In one embodiment of the invention, at least one, and preferably each, of the one or more organic molecules (e.g. usable as FWHM emitters) in at least one, and preferably each, light-emitting layer B comprises or consists of a structure of the formula BNE-1, R BNE-1 , R BNE-2 , R BNE-1’ , R BNE-2’ , R BNE-3 , R BNE-4 , R BNE-3’ , R BNE-4’ , R BNE-I , R BNE-II , R BNE-III , R BNE-IV and R BNE-V are each independently selected from the group consisting of: Hydrogen, deuterium, N(R BNE-5 ) 2 , OR BNE-5 , Si(R BNE-5 ) 3 , B(R BNE-5 ) 2 , C.F. 3 ,C.N.,F. Optionally, one or more substituents R BNE-5 C replaced with 1 -C 5 Alkyl, Optionally, one or more substituents R BNE-5 C replaced with 6 -C 18 Aryl, and Optionally, one or more substituents R BNE-5 C replaced with 2 -C 17 Heteroaryl, R BNE-d , R BNE-d’ and R BNE-e are each independently selected from the group consisting of: Hydrogen, deuterium, CF 3 ,C.N.,F. Optionally, one or more substituents R BNE-a C replaced with 1 -C 5 Alkyl, Optionally, one or more substituents R BNE-a C replaced with6 -C 18 Aryl, and Optionally, one or more substituents R BNE-a C replaced with 2 -C 17 Heteroaryl, R BNE-a are, in each occurrence, independently selected from the group consisting of: Hydrogen, deuterium, N(R BNE-5 ) 2 , OR BNE-5 , Si(R BNE-5 ) 3 , B(R BNE-5 ) 2 , C.F. 3 ,C.N.,F. Optionally, one or more substituents R BNE-5 C replaced with 1 -C 5 Alkyl, Optionally, one or more substituents R BNE-5 C replaced with 6 -C 18 Aryl, and Optionally, one or more substituents R BNE-5 C replaced with 2 -C 17 Heteroaryl, R BNE-5 are, in each occurrence, independently selected from the group consisting of: Hydrogen, deuterium, OPh, CF 3 ,C.N.,F. C 1 -C 5 Alkyl, wherein optionally one or more hydrogen atoms are independently selected from deuterium, CN, CF 3 or replaced by F, C 1 -C 5 Alkoxy, wherein optionally one or more hydrogen atoms are independently selected from deuterium, CN, CF 3 or replaced by F, Optionally, 1 or more C 1 -C 5 C substituted with alkyl substituents 6 -C 18Aryl, Optionally, 1 or more C 1 -C 5 C substituted with alkyl substituents 2 -C 17 Heteroaryl, N(C 6 -C 18 Aryl) 2 , N(C 2 -C 17 Heteroaryl) 2 , and N(C 2 -C 17 Heteroaryl)(C 6 -C 18 aryl), Here, R BNE-III and R BNE-e selectively bonds to form a direct single bond, where two or more substituents R BNE-a , R BNE-d , R BNE-d’ , R BNE-e , R BNE-3’ , R BNE-4’ and R BNE-5 optionally form monocyclic or polycyclic, aliphatic or aromatic or heteroaromatic, carbocyclic or heterocyclic ring systems with each other, where two or more substituents R BNE-1 , R BNE-2 , R BNE-1’ , R BNE-2’ , R BNE-3 , R BNE-4 , R BNE-5 , R BNE-I , R BNE-II , R BNE-III , R BNE-IV and R BNE-V optionally form monocyclic or polycyclic, aliphatic or aromatic or heteroaromatic, carbocyclic or heterocyclic ring systems with each other, wherein optionally two or more, preferably two, structures of the formula BNE-1 are joined to each other, preferably condensed to each other by sharing at least one, more preferably exactly one bond; wherein optionally two or more, preferably two, structures of formula BNE-1 are present in the organic molecule and share at least one, preferably exactly one, aromatic or heteroaromatic ring (i.e., the ring is part of the two structures of formula BNE-1), which is preferably any one of rings a, b, and c' of formula BNE-1, but R BNE-1 , R BNE-2 , R BNE-1’ , R BNE-2’ , R BNE-3 , R BNE-4 , R BNE-3’ , R BNE-4’ , R BNE-5 , R BNE-6 , R BNE-I , R BNE-II , R BNE-III , R BNE-IV , R BNE-V , R BNE-a , R BNE-e , R BNE-d and R BNE-d’ or any aromatic or heteroaromatic ring formed by two or more substituents as above, wherein the shared ring may constitute the same or different moieties of two or more structures of formula BNE-1 that share the ring (i.e., the shared ring is, for example, ring c' of two structures of formula BNE-1 selectively contained in the organic molecule, or the shared ring is, for example, ring b of one structure of formula BNE-1 and ring c' of another structure selectively contained in the organic molecule); where, optionally, any R BNE-1 , R BNE-2 , R BNE-1’ , R BNE-2’ , R BNE-3 , R BNE-4 , R BNE-5 , R BNE-3’ , R BNE-4’ , R BNE-6 , R BNE-I , R BNE-II , R BNE-III , R BNE-IV , R BNE-V , R BNE-a , R BNE-e , R BNE-d or RBNE-d’ is replaced by a bond to a further chemical entity of formula BNE-1, and / or any R BNE-1 , R BNE-2 , R BNE-1’ , R BNE-2’ , R BNE-3 , R BNE-4 , R BNE-5 , R BNE-3’ , R BNE-4’ , R BNE-6 , R BNE-I , R BNE-II , R BNE-III , R BNE-IV , R BNE-V , R BNE-a , R BNE-e , R BNE-d or R BNE-d’ is replaced by a bond to a further chemical entity of formula BNE-1.

[0066] In one embodiment of the invention, at least one, and preferably each, of the one or more organic molecules (e.g. usable as FWHM emitters) in at least one, and preferably each, light-emitting layer B comprises or consists of a structure of the formula BNE-1, R BNE-1 , R BNE-2 , R BNE-1’ , R BNE-2’ , R BNE-3 , R BNE-4 , R BNE-3’ , R BNE-4’ , R BNE-I , R BNE-II , R BNE-III , R BNE-IV and R BNE-V are each independently selected from the group consisting of: Hydrogen, deuterium, N(R BNE-5 ) 2 , OR BNE-5 , Si(R BNE-5 ) 3 , B(R BNE-5 ) 2 , C.F. 3 ,C.N.,F. Optionally, one or more substituents R BNE-5 C replaced with 1 -C5 Alkyl, Optionally, one or more substituents R BNE-5 C replaced with 6 -C 18 Aryl, and Optionally, one or more substituents R BNE-5 C replaced with 2 -C 17 Heteroaryl, R BNE-d , R BNE-d’ and R BNE-e are each independently selected from the group consisting of: Hydrogen, deuterium, Optionally, one or more substituents R BNE-a C replaced with 1 -C 5 Alkyl, Optionally, one or more substituents R BNE-a C replaced with 6 -C 18 Aryl, and Optionally, one or more substituents R BNE-a C replaced with 2 -C 17 Heteroaryl, R BNE-a are, in each occurrence, independently selected from the group consisting of: Hydrogen, deuterium, N(R BNE-5 ) 2 , OR BNE-5 , Si(R BNE-5 ) 3 , B(R BNE-5 ) 2 , C.F. 3 ,C.N.,F. Optionally, one or more substituents R BNE-5 C replaced with 1 -C 5 Alkyl, Optionally, one or more substituents R BNE-5 C replaced with 6 -C 18 Aryl, and Optionally, one or more substituents R BNE-5 C replaced with 2 -C 17 Heteroaryl, R BNE-5are, in each occurrence, independently selected from the group consisting of: Hydrogen, deuterium, OPh, CF 3 ,C.N.,F. C 1 -C 5 Alkyl, wherein optionally one or more hydrogen atoms are independently selected from deuterium, CN, CF 3 or replaced by F, Optionally, 1 or more C 1 -C 5 C substituted with alkyl substituents 6 -C 18 Aryl, Optionally, 1 or more C 1 -C 5 C substituted with alkyl substituents 2 -C 17 Heteroaryl, N(C 6 -C 18 Aryl) 2 , N(C 2 -C 17 Heteroaryl) 2 , and N(C 2 -C 17 Heteroaryl)(C 6 -C 18 aryl), Here, R BNE-III and R BNE-e selectively bonds to form a direct single bond, where two or more substituents R BNE-a , R BNE-d , R BNE-d’ , R BNE-e , R BNE-3’ , R BNE-4’ and R BNE-5 optionally form monocyclic or polycyclic, aliphatic or aromatic or heteroaromatic, carbocyclic or heterocyclic ring systems with each other, where two or more substituents R BNE-1 , R BNE-2 , R BNE-1’ , R BNE-2’ , R BNE-3 , R BNE-4 , R BNE-5 , RBNE-I , R BNE-II , R BNE-III , R BNE-IV and R BNE-V optionally form monocyclic or polycyclic, aliphatic or aromatic or heteroaromatic, carbocyclic or heterocyclic ring systems with each other, wherein optionally two or more, preferably two, structures of the formula BNE-1 are joined to each other, preferably condensed to each other by sharing at least one, more preferably exactly one bond; wherein optionally two or more, preferably two, structures of formula BNE-1 are present in the organic molecule and share at least one, preferably exactly one, aromatic or heteroaromatic ring (i.e., the ring is part of the two structures of formula BNE-1), which is preferably any one of rings a, b, and c' of formula BNE-1, but R BNE-1 , R BNE-2 , R BNE-1’ , R BNE-2’ , R BNE-3 , R BNE-4 , R BNE-3’ , R BNE-4’ , R BNE-5 , R BNE-6 , R BNE-I , R BNE-II , R BNE-III , R BNE-IV , R BNE-V , R BNE-a , R BNE-e , R BNE-d and R BNE-d’ or any aromatic or heteroaromatic ring formed by two or more substituents as above, wherein the shared ring may constitute the same or different moieties of two or more structures of formula BNE-1 that share the ring (i.e., the shared ring is, for example, ring c' of two structures of formula BNE-1 selectively contained in the organic molecule, or the shared ring is, for example, ring b of one structure of formula BNE-1 and ring c' of another structure selectively contained in the organic molecule); where, optionally, any R BNE-1 , R BNE-2 , R BNE-1’, R BNE-2’ , R BNE-3 , R BNE-4 , R BNE-5 , R BNE-3’ , R BNE-4’ , R BNE-6 , R BNE-I , R BNE-II , R BNE-III , R BNE-IV , R BNE-V , R BNE-a , R BNE-e , R BNE-d or R BNE-d’ is replaced by a bond to a further chemical entity of formula BNE-1, and / or any R BNE-1 , R BNE-2 , R BNE-1’ , R BNE-2’ , R BNE-3 , R BNE-4 , R BNE-5 , R BNE-3’ , R BNE-4’ , R BNE-6 , R BNE-I , R BNE-II , R BNE-III , R BNE-IV , R BNE-V , R BNE-a , R BNE-e , R BNE-d or R BNE-d’ is replaced by a bond to a further chemical entity of formula BNE-1.

[0067] In one embodiment of the present invention, R BNE-III and R BNE-e combines to form a direct single bond.

[0068] In one embodiment of the present invention, R BNE-III and R BNE-e does not bond directly to form a single bond.

[0069] In one embodiment, in the context of the present invention, a direct BN bond M BNThe emitter moieties comprising may optionally be multimers (e.g., dimers) of the aforementioned formula BNE-1, meaning that their structure comprises one or more subunits, each of which has the structure of formula BNE-1. In this case, the skilled person will understand that two or more subunits according to formula BNE-1 may, for example, be joined, preferably fused, to each other (i.e., share at least one bond, where there are no more respective substituents attached to the atom forming the bond). Also, two or more subunits may share at least one, preferably exactly one, aromatic or heteroaromatic ring. This may, for example, be the case for a direct BN bond M BN Each emitter moiety includes two or more subunits having the structure of the formula BNE-1, where the two subunits share an aromatic or heteroaromatic ring (i.e., each ring is part of two subunits). As a result, the direct BN bond M BN Each multimeric (e.g., dimeric) emitter moiety containing the covalent ring is present only once and does not contain two whole subunits according to the formula BNE-1. Nevertheless, those skilled in the art will understand that the emitter is still considered herein to be a multimer of the formula BNE-1 (e.g., a dimer if it contains two subunits having the structure of the formula BNE-1). The same is true for multimers that share one or more rings. Preferably, the multimer is a dimer containing two subunits each having the structure of the formula BNE-1.

[0070] In one embodiment of the present invention, the direct BN bond M BN The emitter moiety comprising is a dimer of formula BNE-1 as described above, meaning that the emitter comprises two subunits each having the structure of formula BNE-1.

[0071] In one embodiment of the present invention, the direct BN bond M BNAn emitter moiety comprising: comprises or consists of two or more, preferably exactly two, structures (i.e., subunits) of the chemical formula BNE-1, where the two subunits are joined and preferably fused to one another by sharing at least one, and more preferably exactly one, bond.

[0072] In one embodiment of the present invention, the direct BN bond M BN comprises or consists of two or more, preferably exactly two, structures (i.e., subunits) of the formula BNE-1, wherein the subunits share at least one, preferably exactly one, aromatic or heteroaromatic ring (i.e., the ring is part of the two structures of formula BNE-1), which is preferably any one of rings a, b and c' of formula BNE-1, but not R BNE-1 , R BNE-2 , R BNE-1’ , R BNE-2’ , R BNE-3 , R BNE-4 , R BNE-3’ , R BNE-4’ , R BNE-5 , R BNE-6 , R BNE-I , R BNE-II , R BNE-III , R BNE-IV , R BNE-V , R BNE-a , R BNE-e , R BNE-d and R BNE-d’ or any aromatic or heteroaromatic ring formed by two or more substituents as above, wherein the shared ring may constitute the same or different moieties of two or more structures of formula BNE-1 that share the ring (i.e., the shared ring is, for example, ring c' of two structures of formula BNE-1 selectively contained in the organic molecule, or the shared ring is, for example, ring b of one structure of formula BNE-1 and ring c' of another structure selectively contained in the organic molecule).

[0073] In one embodiment of the present invention, the direct BN bond M BN The emitter moiety comprises or consists of a structure (i.e., a subunit) of the formula BNE-1, Here, R BNE-1 , R BNE-2 , R BNE-1’ , R BNE-2’ , R BNE-3 , R BNE-4 , R BNE-5 , R BNE-3’ , R BNE-4’ , R BNE-6 , R BNE-I , R BNE-II , R BNE-III , R BNE-IV , R BNE-V , R BNE-a , R BNE-e , R BNE-d or R BNE-d’ at least one of R is replaced by a bond to a further chemical entity of formula BNE-1, and / or, optionally, any R BNE-1 , R BNE-2 , R BNE-1’ , R BNE-2’ , R BNE-3 , R BNE-4 , R BNE-5 , R BNE-3’ , R BNE-4’ , R BNE-6 , R BNE-I , R BNE-II , R BNE-III , R BNE-IV , R BNE-V , R BNE-a , R BNE-e , R BNE-d or R BNE-d’ is replaced by a bond to a further chemical entity of formula BNE-1.

[0074] A directly BN-bonded M compound having or consisting of the structure of formula BNE-1 as defined herein, which can be used in the context of the present invention (e.g., as a small FWHM emitter). BN Non-limiting examples of emitter moieties, including: TADFExemplary one or more bonding sites to, which may be at any position where the skilled artisan can readily note the substitution of a hydrogen atom according to the valence of the structure): JPEG2025505549000035.jpg181170 JPEG2025505549000036.jpg183170 JPEG2025505549000037.jpg188170 JPEG2025505549000038.jpg201170JPEG2025505549000039.jpg181170JPEG2025505549000040.jpg214170JPEG2025505549000041.jpg189170JPEG2025505549000042.jpg135170JPEG2025505549000043.jpg87170JPEG2025505549000044.jpg140170JPEG2025505549000045.jpg74170JPEG2025505549000046.jpg61170JPEG2025505549000047.jpg143170JPEG2025505549000048.jpg36170JPEG2025505549000049.jpg115170JPEG2025505549000050.jpg77170JPEG2025505549000051.jpg119170JPEG2025505549000052.jpg115170JPEG2025505549000053.jpg195170JPEG2025505549000054.jpg236170JPEG2025505549000055.jpg218170JPEG2025505549000056.jpg140170JPEG2025505549000057.jpg73170JPEG2025505549000058.jpg71170JPEG2025505549000059.jpg140170JPEG2025505549000060.jpg156170JPEG2025505549000061.jpg71170JPEG2025505549000062.jpg39170JPEG2025505549000063.jpg188170JPEG2025505549000064.jpg147170JPEG2025505549000065.jpg73170JPEG2025505549000066.jpg71170JPEG2025505549000067.jpg135170JPEG2025505549000068.jpg152170JPEG2025505549000069.jpg51170JPEG2025505549000070.jpg102170JPEG2025505549000071.jpg66170JPEG2025505549000072.jpg71170JPEG2025505549000073.jpg156170JPEG2025505549000074.jpg71 170JPEG2025505549000075.jpg71170JPEG2025505549000076.jpg135170JPEG2025505549000077.jpg227170.

[0075] Synthesis of organic molecules that include or consist of the structure of formula BNE-1 (eg, usable as FWHM emitters) can be accomplished via standard reactions and reaction conditions known to the skilled artisan.

[0076] Typically, the synthesis involves transition metal catalyzed cross-coupling and borylation reactions, which are well known to the skilled artisan.

[0077] For example, WO2020135953(A1) discloses a method for synthesizing a BN emitter that includes or consists of the structure of the chemical formula BNE-1. Also, US2018047912(A1) discloses a method for synthesizing a BN emitter that includes or consists of the structure of the chemical formula BNE-1, in which c and d are 0.

[0078] It is also understood that the emitters disclosed in US2018047912(A1) and WO2020135953(A1) can be used as BN emitters in the context of the present invention.

[0079] Those skilled in the art will appreciate that which hydrogen atoms of the phenyl rings in the core structure of the depicted BN emitter (i.e., the phenyl rings that are bonded to at least one N as well as to B) are bound to the BN emitter moiety M BN It is immediately apparent that the bond site of the single bond connecting the bridging unit L to the bridging unit L can be replaced by that of the single bond. As an example, when the hydrogen atoms are explicitly shown, the structure can be shown as follows: JPEG2025505549000078.jpg41170

[0080] In a preferred embodiment, M BN is represented by the following chemical formula M BN -1 is attached to L at the para position of the boron atom as represented by:

[0081] [Chemical formula M BN -1] JPEG2025505549000079.jpg36170 where, @ BN is the BN emitter moiety M BN represents a single bond connecting to the bridging unit L.

[0082] TADF Moiety M TADF : Thermally activated delayed fluorescence (TADF) material moiety M TADF is derived from the TADF material. According to the present invention, the TADF material has an energy difference ΔE ST The present invention is characterized by a value of less than 0.4 eV, preferably less than 0.3 eV, more preferably less than 0.2 eV, even more preferably less than 0.1 eV, or even more preferably less than 0.05 eV.

[0083] In one embodiment of the present invention, M TADF consists of: a first chemical moiety having a structure of formula I, and

[0084] [Chemical formula I] JPEG2025505549000080.jpg28170 - a second chemical moiety having a structure of formula II,

[0085] [Chemical formula II] JPEG2025505549000081.jpg25170 the first chemical moiety is linked to the second chemical moiety through a single bond; T is selected from the group consisting of: A single bond linking the first chemical moiety to the second chemical moiety, a hydrogen (H), a deuterium (D), and a RTADF1 , W is selected from the group consisting of: a single bond binding site linking the first chemical moiety to the second chemical moiety; TADF Moiety M TADF a single bond linking the linker unit L to the bridging unit L; H, D and R TADF1 , Y is the TADF moiety M TADF The bond sites H, D and R are single bonds connecting the TADF1 is selected from the group consisting of Acc 1 is selected from the group consisting of: C.N., CF 3 , C.N., C.F. 3 Ph optionally substituted with one or more substituents selected from the group consisting of: Optionally, one or more substituents R 6 triazinyl substituted with Optionally, one or more substituents R 6 pyridyl substituted with, Optionally, one or more substituents R 6 pyrimidyl substituted with # indicates a single bond attachment site linking a second chemical moiety to a first chemical moiety; R Di is selected from the group consisting of: H, D, Me, i Pr, t Bu, SiPh 3 , C.N., C.F. 3 , Me, i Pr, t Ph optionally substituted with one or more substituents independently selected from the group consisting of Bu and Ph; TADF Moiety M TADF a single bond linking the linker unit L to the bridging unit L; and a third chemical moiety having a structure of formula Q;

[0086] [Chemical formula Q] JPEG2025505549000082.jpg23170Q 1 N and CR QI is selected from the group consisting of Q 2 N and CR QIII is selected from the group consisting of Q 3 N and CR QIV is selected from the group consisting of Q 4 N and CR QV is selected from the group consisting of $ Q represents a single bond attachment site linking a third chemical moiety to the first chemical moiety; R QI is selected from the group consisting of: H, D, CN, CF 3 , SiPh 3 , F, Ph, and a fourth chemical moiety comprising or consisting of the structure of formula IIQ;

[0087] [Chemical formula IIQ] JPEG2025505549000083.jpg26170§ Q represents a single bond attachment site linking a fourth chemical moiety to a third chemical moiety; R QII is selected from the group consisting of: TADF Moiety M TADF a single bond linking the linker unit L to the bridging unit L; H, D, Me, i Pr, t Bu, SiPh 3 , and Me, i Pr, t Ph optionally substituted with one or more substituents independently selected from the group consisting of Bu and Ph; R QIII is selected from the group consisting of: TADF Moiety M TADFa single bond linking the linker unit L to the bridging unit L; H, D, CN, CF 3 , SiPh 3 , F, Optionally, one or more substituents R 6 Ph substituted with Optionally, one or more substituents R 6 triazinyl substituted with Optionally, one or more substituents R 6 pyridyl substituted with, Optionally, one or more substituents R 6 pyrimidyl substituted with R QIV is selected from the group consisting of: TADF Moiety M TADF a single bond linking the linker unit L to the bridging unit L; H, D, CN, CF 3 , SiPh 3 , F, Optionally, one or more substituents R 6 Ph substituted with Optionally, one or more substituents R 6 triazinyl substituted with Optionally, one or more substituents R 6 pyridyl substituted with, Optionally, one or more substituents R 6 pyrimidyl substituted with R QV is selected from the group consisting of: TADF Moiety M TADF a single bond linking the linker unit L to the bridging unit L; H, D, Me, i Pr, t Bu, SiPh 3 , and Me, i Pr, t Ph optionally substituted with one or more substituents independently selected from the group consisting of Bu and Ph.

[0088] In one embodiment, Q 1 , Q 2 and Q 4are each N, thus forming a triazine moiety. 1 , Q 2 and Q 4 and two of Q are each N, thus forming a pyrimidine moiety. 1 , Q 2 and Q 4 and Q is N, forming a pyridine moiety. 1 , Q 2 , Q 3 and Q 4 Each of these is a selectively substituted carbon atom (CR QI , C.R. QIII , C.R. QIV , C.R. QV ) thus forming a phenyl moiety.

[0089] According to the present invention, one R Di denotes a third chemical moiety that comprises or consists of a structure of formula Q, Other R Di is selected from the group consisting of: H, D, Me, i Pr, t Bu, SiPh 3 , Me, i Pr, t Ph optionally substituted with one or more substituents independently selected from the group consisting of Bu and Ph; and TADF Moiety M TADF a single bond linking the linker unit L to the bridging unit L; R TADF1 is selected from the group consisting of: Me, i Pr, t Bu, SiPh 3 , and Me, i Pr, t Ph optionally substituted with one or more substituents independently selected from the group consisting of Bu and Ph; Ra are, in each occurrence, independently selected from the group consisting of: TADF Moiety M TADF a single bond linking the linker unit L to the bridging unit L; Hydrogen, deuterium, N(R 5 ) 2 , OR 5 , Si(R 5 ) 3 , B(OR 5 ) 2 , O.S.O. 2 R 5 , C.F. 3 ,CN,F,Br,I, C 1 -C 40 Alkyl, This can be optionally substituted with one or more substituents R 5 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R 5 C=CR 5 , C≡C, Si(R 5 ) 2 , Ge(R 5 ) 2 , Sn(R 5 ) 2 , C=O, C=S, C=Se, C=NR 5 , P(=O)(R 5 ), SO, SO 2 , N.R. 5 , O, S or CONR 5 is replaced by C 1 -C 40 Alkoxy, This can be optionally substituted with one or more substituents R 5 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R 5 C=CR 5 , C≡C, Si(R 5 ) 2 , Ge(R 5 ) 2 , Sn(R 5 ) 2 , C=O, C=S, C=Se, C=NR 5 , P(=O)(R5 ), SO, SO 2 , N.R. 5 , O, S or CONR 5 is replaced by C 1 -C 40 Thioalkoxy, This can be optionally substituted with one or more substituents R 5 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R 5 C=CR 5 , C≡C, Si(R 5 ) 2 , Ge(R 5 ) 2 , Sn(R 5 ) 2 , C=O, C=S, C=Se, C=NR 5 , P(=O)(R 5 ), SO, SO 2 , N.R. 5 , O, S or CONR 5 is replaced by C 2 -C 40 Alkenyl, This can be optionally substituted with one or more substituents R 5 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R 5 C=CR 5 , C≡C, Si(R 5 ) 2 , Ge(R 5 ) 2 , Sn(R 5 ) 2 , C=O, C=S, C=Se, C=NR 5 , P(=O)(R 5 ), SO, SO 2 , N.R. 5 , O, S or CONR 5 is replaced by C 2 -C 40 Alkynyl, This can be optionally substituted with one or more substituents R 5 is replaced by Here, one or more non-adjacent CH 2The group is optionally R 5 C=CR 5 , C≡C, Si(R 5 ) 2 , Ge(R 5 ) 2 , Sn(R 5 ) 2 , C=O, C=S, C=Se, C=NR 5 , P(=O)(R 5 ), SO, SO 2 , N.R. 5 , O, S or CONR 5 is replaced by Optionally, one or more substituents R 5 C replaced with 6 -C 60 Aryl, and Optionally, one or more substituents R 5 C replaced with 3 -C 57 Heteroaryl, R 5 are, in each occurrence, independently selected from the group consisting of: Hydrogen, deuterium, N(R 6 ) 2 , OR 6 , Si(R 6 ) 3 , B(OR 6 ) 2 , O.S.O. 2 R 6 , C.F. 3 ,CN,F,Br,I, C 1 -C 40 Alkyl, This can be optionally substituted with one or more substituents R 6 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R 6 C=CR 6 , C≡C, Si(R 6 ) 2 , Ge(R 6 ) 2 , Sn(R 6 ) 2 , C=O, C=S, C=Se, C=NR 6 , P(=O)(R 6 ), SO, SO2 , N.R. 6 , O, S or CONR 6 is replaced by C 1 -C 40 Alkoxy, This can be optionally substituted with one or more substituents R 6 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R 6 C=CR 6 , C≡C, Si(R 6 ) 2 , Ge(R 6 ) 2 , Sn(R 6 ) 2 , C=O, C=S, C=Se, C=NR 6 , P(=O)(R 6 ), SO, SO 2 , N.R. 6 , O, S or CONR 6 is replaced by C 1 -C 40 Thioalkoxy, This can be optionally substituted with one or more substituents R 6 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R 6 C=CR 6 , C≡C, Si(R 6 ) 2 , Ge(R 6 ) 2 , Sn(R 6 ) 2 , C=O, C=S, C=Se, C=NR 6 , P(=O)(R 6 ), SO, SO 2 , N.R. 6 , O, S or CONR 6 is replaced by C 2 -C 40 Alkenyl, This can be optionally substituted with one or more substituents R 6 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R 6C=CR 6 , C≡C, Si(R 6 ) 2 , Ge(R 6 ) 2 , Sn(R 6 ) 2 , C=O, C=S, C=Se, C=NR 6 , P(=O)(R 6 ), SO, SO 2 , N.R. 6 , O, S or CONR 6 is replaced by C 2 -C 40 Alkynyl, This can be optionally substituted with one or more substituents R 6 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R 6 C=CR 6 , C≡C, Si(R 6 ) 2 , Ge(R 6 ) 2 , Sn(R 6 ) 2 , C=O, C=S, C=Se, C=NR 6 , P(=O)(R 6 ), SO, SO 2 , N.R. 6 , O, S or CONR 6 is replaced by Optionally, one or more substituents R 6 C replaced with 6 -C 60 Aryl, and Optionally, one or more substituents R 6 C replaced with 3 -C 57 Heteroaryl, R 6 are, in each occurrence, independently selected from the group consisting of: Hydrogen, deuterium, OPh, CF 3 ,C.N.,F. C 1 -C 5 Alkyl, wherein optionally one or more hydrogen atoms are independently selected from deuterium, CN, CF 3or replaced by F, C 1 -C 5 Alkoxy, wherein optionally one or more hydrogen atoms are independently selected from deuterium, CN, CF 3 or replaced by F, C 1 -C 5 Thioalkoxy, wherein optionally one or more hydrogen atoms are independently selected from deuterium, CN, CF 3 or replaced by F, C 2 -C 5 Alkenyl, wherein optionally one or more hydrogen atoms are independently selected from deuterium, CN, CF 3 or replaced by F, C 2 -C 5 Alkynyl, wherein optionally one or more hydrogen atoms are independently selected from deuterium, CN, CF 3 or replaced by F, Optionally, 1 or more C 1 -C 5 C substituted with alkyl substituents 6 -C 18 Aryl, Optionally, 1 or more C 1 -C 5 C substituted with alkyl substituents 3 -C 17 Heteroaryl, N(C 6 -C 18 Aryl)(C 6 -C 18 aryl), N(C 3 -C 17 Heteroaryl)(C 3 -C 17 Heteroaryl), and N(C 3 -C 17 Heteroaryl)(C 6 -C 18 aryl).

[0090] According to the invention, two or more substituents R a and / or R 5 are, independently of one another, one or more substituents R a or R 5 with, selectively forming monocyclic or polycyclic, (hetero)aliphatic, (hetero)aromatic and / or benzo-fused ring systems.

[0091] R f are, in each occurrence, independently selected from the group consisting of: Hydrogen, deuterium, N(R 5f ) 2 , OR 5f , Si(R 5f ) 3 , B(OR 5f ) 2 , O.S.O. 2 R 5f , C.F. 3 ,CN,F,Br,I, C 1 -C 40 Alkyl, This can be optionally substituted with one or more substituents R 5f is replaced by Here, one or more non-adjacent CH 2 The group is optionally R 5f C=CR 5f , C≡C, Si(R 5f ) 2 , Ge(R 5f ) 2 , Sn(R 5f ) 2 , C=O, C=S, C=Se, C=NR 5f , P(=O)(R 5f ), SO, SO 2 , N.R. 5f , O, S or CONR 5f is replaced by C 1 -C 40 Alkoxy, This can be optionally substituted with one or more substituents R 5f is replaced by Here, one or more non-adjacent CH 2 The group is optionally R 5f C=CR 5f , C≡C, Si(R5f ) 2 , Ge(R 5f ) 2 , Sn(R 5f ) 2 , C=O, C=S, C=Se, C=NR 5f , P(=O)(R 5f ), SO, SO 2 , N.R. 5f , O, S or CONR 5f is replaced by C 1 -C 40 Thioalkoxy, This can be optionally substituted with one or more substituents R 5f is replaced by Here, one or more non-adjacent CH 2 The group is optionally R 5f C=CR 5f , C≡C, Si(R 5f ) 2 , Ge(R 5f ) 2 , Sn(R 5f ) 2 , C=O, C=S, C=Se, C=NR 5f , P(=O)(R 5f ), SO, SO 2 , N.R. 5f , O, S or CONR 5f is replaced by C 2 -C 40 Alkenyl, This can be optionally substituted with one or more substituents R 5f is replaced by Here, one or more non-adjacent CH 2 The group is optionally R 5f C=CR 5f , C≡C, Si(R 5f ) 2 , Ge(R 5f ) 2 , Sn(R 5f ) 2 , C=O, C=S, C=Se, C=NR 5f , P(=O)(R 5f ), SO, SO 2 , N.R. 5f , O, S or CONR 5f is replaced by C 2 -C 40 Alkynyl, This can be optionally substituted with one or more substituents R 5f is replaced by Here, one or more non-adjacent CH 2 The group is optionally R 5f C=CR 5f , C≡C, Si(R 5f ) 2 , Ge(R 5f ) 2 , Sn(R 5f ) 2 , C=O, C=S, C=Se, C=NR 5f , P(=O)(R 5f ), SO, SO 2 , N.R. 5f , O, S or CONR 5f is replaced by Optionally, one or more substituents R 5f C replaced with 6 -C 60 Aryl, and Optionally, one or more substituents R 5f C replaced with 3 -C 57 Heteroaryl, R 5f are, in each occurrence, independently selected from the group consisting of: Hydrogen, deuterium, N(R 6f ) 2 , OR 6f , Si(R 6f ) 3 , B(OR 6f ) 2 , O.S.O. 2 R 6f , C.F. 3 ,CN,F,Br,I, C 1 -C 40 Alkyl, This can be optionally substituted with one or more substituents R 6f is replaced by Here, one or more non-adjacent CH 2 The group is optionally R 6f C=CR 6f , C≡C, Si(R 6f )2 , Ge(R 6f ) 2 , Sn(R 6f ) 2 , C=O, C=S, C=Se, C=NR 6f , P(=O)(R 6f ), SO, SO 2 , N.R. 6f , O, S or CONR 6f is replaced by C 1 -C 40 Alkoxy, This can be optionally substituted with one or more substituents R 6f is replaced by Here, one or more non-adjacent CH 2 The group is optionally R 6f C=CR 6f , C≡C, Si(R 6f ) 2 , Ge(R 6f ) 2 , Sn(R 6f ) 2 , C=O, C=S, C=Se, C=NR 6f , P(=O)(R 6f ), SO, SO 2 , N.R. 6f , O, S or CONR 6f is replaced by C 1 -C 40 Thioalkoxy, This can be optionally substituted with one or more substituents R 6f is replaced by Here, one or more non-adjacent CH 2 The group is optionally R 6f C=CR 6f , C≡C, Si(R 6f ) 2 , Ge(R 6f ) 2 , Sn(R 6f ) 2 , C=O, C=S, C=Se, C=NR 6f , P(=O)(R 6f ), SO, SO 2 , N.R. 6f , O, S or CONR 6f is replaced by C2 -C 40 Alkenyl, This can be optionally substituted with one or more substituents R 6f is replaced by Here, one or more non-adjacent CH 2 The group is optionally R 6f C=CR 6f , C≡C, Si(R 6f ) 2 , Ge(R 6f ) 2 , Sn(R 6f ) 2 , C=O, C=S, C=Se, C=NR 6f , P(=O)(R 6f ), SO, SO 2 , N.R. 6f , O, S or CONR 6f is replaced by C 2 -C 40 Alkynyl, This can be optionally substituted with one or more substituents R 6f is replaced by Here, one or more non-adjacent CH 2 The group is optionally R 6f C=CR 6f , C≡C, Si(R 6f ) 2 , Ge(R 6f ) 2 , Sn(R 6f ) 2 , C=O, C=S, C=Se, C=NR 6f , P(=O)(R 6f ), SO, SO 2 , N.R. 6f , O, S or CONR 6f is replaced by Optionally, one or more substituents R 6f C replaced with 6 -C 60 Aryl, and Optionally, one or more substituents R 6f C replaced with 3 -C 57 Heteroaryl, R 6f are, in each occurrence, independently selected from the group consisting of: Hydrogen, deuterium, OPh, CF 3 ,C.N.,F. C 1 -C 5 Alkyl, wherein optionally one or more hydrogen atoms are independently selected from deuterium, CN, CF 3 or replaced by F, C 1 -C 5 Alkoxy, wherein optionally one or more hydrogen atoms are independently selected from deuterium, CN, CF 3 or replaced by F, C 1 -C 5 Thioalkoxy, wherein optionally one or more hydrogen atoms are independently selected from deuterium, CN, CF 3 or replaced by F, C 2 -C 5 Alkenyl, wherein optionally one or more hydrogen atoms are independently selected from deuterium, CN, CF 3 or replaced by F, C 2 -C 5 Alkynyl, wherein optionally one or more hydrogen atoms are independently selected from deuterium, CN, CF 3 or replaced by F, Optionally, 1 or more C 1 -C 5 C substituted with alkyl substituents 6 -C 18 Aryl, Optionally, 1 or more C 1 -C 5 C substituted with alkyl substituents 3 -C 17 Heteroaryl, N(C 6 -C 18 Aryl)(C 6 -C 18 aryl), N(C 3 -C 17 Heteroaryl)(C 3 -C 17Heteroaryl), and N(C 3 -C 17 Heteroaryl)(C 6 -C 18 aryl).

[0092] According to the invention, two or more substituents R f and / or R 5f are, independently of one another, one or more substituents R f or R 5f with, selectively forming monocyclic or polycyclic, (hetero)aliphatic, (hetero)aromatic and / or benzo-fused ring systems.

[0093] According to the present invention, the TADF moiety M TADF is TADF Moiety M TADF to the bridging unit L.

[0094] In accordance with the present invention, a selected one of the group consisting of T, W and Y represents a single bond attachment site connecting a first chemical moiety and a second chemical moiety.

[0095] In one embodiment of the present invention, Acc 1 is selected from one of the structures of chemical formulas A1 to A23; JPEG2025505549000084.jpg121170, where & Acc Acc 1 1 shows a single bond binding site linking the to a first chemical moiety.

[0096] First Chemical Moiety In one embodiment, the first chemical moiety comprises or consists of the structure of formula Ia:

[0097] [Chemical formula Ia] JPEG2025505549000085.jpg40170R Di , T, W and Y, the above definitions apply, Q 5is selected from the group consisting of N and CH; Q 5 is selected from the group consisting of N and CH.

[0098] According to one embodiment of the present invention, Q 5 and Q 6 At least one of them is N.

[0099] According to one embodiment of the present invention, exactly one substituent selected from the group consisting of T and W represents a single bond attachment site linking the first chemical moiety and the second chemical moiety.

[0100] In one embodiment, T represents a single bond attachment site linking the first chemical moiety and the second chemical moiety.

[0101] In one embodiment, W represents a single bond attachment site linking the first chemical moiety and the second chemical moiety.

[0102] Chemical formula LWo In one embodiment, the first chemical moiety has the structure of formula LWo:

[0103] [Chemical formula LWo] JPEG2025505549000086.jpg23170Acc 1 The above definition applies, R * is selected from the group consisting of: H, D, Me, i Pr, t Bu, SiPh 3 , C.N., C.F. 3 , Me, i Pr, t Ph optionally substituted with one or more substituents independently selected from the group consisting of Bu and Ph; and a third chemical moiety having a structure of formula Q; @ TADF is TADF Moiety M TADFrepresents a single bond binding site connecting the to the bridging unit L, W # indicates a single bond attachment site linking a first chemical moiety to a second chemical moiety.

[0104] In a further embodiment, the first chemical moiety has the structure of formula LWo, R * represents a third chemical moiety having a structure of formula Q.

[0105] In a further embodiment, the first chemical moiety has the structure of formula LWo, R * represents a third chemical moiety having one of the structures of chemical formulas B1 to B9; JPEG2025505549000087.jpg151170, where & * is R * represents a single bond binding site linking the first chemical moiety to the second chemical moiety; R f The above definitions apply.

[0106] In a further embodiment, the first chemical moiety has the structure of formula LWo, R * is the chemical formula A1 * ~A23 * a third chemical moiety having one of the structures JPEG2025505549000088.jpg124170, where & * is R * 1 shows a single bond binding site linking the to a first chemical moiety.

[0107] In one embodiment, the first chemical moiety has the structure of formula LWo-I:

[0108] [Chemical formula LWo-I] JPEG2025505549000089.jpg41170, where R * , @ TADF , W # , Q5 and Q 6 If , the above definition applies and Q 5 and Q 6 At least one of them is N.

[0109] In a further embodiment, the first chemical moiety has the structure of formula LWo-I, * represents a third chemical moiety having one of the structures of chemical formulas B1 to B9.

[0110] In a further embodiment, the first chemical moiety has the structure of formula LWo-I, R * is the chemical formula A1 * ~A23 * The third chemical moiety is one of the structures:

[0111] Chemical formula WoL In one embodiment, the first chemical moiety has the structure of formula Lwo,

[0112] [Chemical formula WoL] JPEG2025505549000090.jpg23170Acc 1 The above definition applies, R ** represents a third chemical moiety having a structure of formula Q, @ TADF is TADF Moiety M TADF represents a single bond binding site connecting the to the bridging unit L, W # indicates a single bond attachment site linking a first chemical moiety to a second chemical moiety.

[0113] In a further embodiment, the first chemical moiety has the structure of formula WoL: R ** is the chemical formula B1 * ~B9 * a third chemical moiety having one of the structures JPEG2025505549000091.jpg151170, where: ** is R ** to a first chemical moiety; @ TADF is TADF Moiety M TADF represents a single bond binding site connecting the to the bridging unit L, R f The above definitions apply.

[0114] In one embodiment, the first chemical moiety has the structure of formula WoL-I,

[0115] [Chemical formula WoL-I] JPEG2025505549000092.jpg41170, where R ** , @ TADF , W # , Q 5 and Q 6 If , the above definition applies and Q 5 and Q 6 At least one of them is N.

[0116] In a further embodiment, the first chemical moiety has the structure of formula LWo-I, * represents a third chemical moiety having one of the structures of chemical formulas B1 to B9.

[0117] Chemical formula LTp In one embodiment, the first chemical moiety has the structure of formula LTp:

[0118] [Chemical formula LTp] JPEG2025505549000093.jpg18170Acc 1 The above definition applies, R *** is selected from the group consisting of: H, D, Me, i Pr, t Bu, SiPh 3 , C.N., C.F. 3 , Me, i Pr, t Ph optionally substituted with one or more substituents independently selected from the group consisting of Bu and Ph; and a third chemical moiety having a structure of formula Q; @ TADF is TADF Moiety M TADF represents a single bond binding site connecting the to the bridging unit L, T # indicates a single bond attachment site linking a first chemical moiety to a second chemical moiety.

[0119] In a further embodiment, the first chemical moiety has the structure of formula LTP: R *** represents a third chemical moiety having a structure of formula Q.

[0120] In a further embodiment, the first chemical moiety has the structure of formula LWo, R *** is the chemical formula B1 ** ~B9 ** a third chemical moiety having one of the structures JPEG2025505549000094.jpg151170, where: *** is R *** represents a single bond binding site linking the first chemical moiety to the second chemical moiety; R f The above definitions apply.

[0121] In a further embodiment, the first chemical moiety has the structure of formula LWo, R *** is the chemical formula A1 ** ~A23 ** a third chemical moiety having one of the structures JPEG2025505549000095.jpg124170, where & *** is R *** 1 shows a single bond binding site linking the to a first chemical moiety.

[0122] In one embodiment, the first chemical moiety has the structure of formula LTP-I,

[0123] [Chemical formula LTp-I] JPEG2025505549000096.jpg36170, where R *** , @ TADF , T # , Q 5 and Q 6 If , the above definition applies and Q 5 and Q 6 At least one of them is N.

[0124] In a further embodiment, the first chemical moiety has the structure of formula LTp-I, R *** is the chemical formula B1 ** ~B9 ** The third chemical moiety is one of the structures:

[0125] In a further embodiment, the first chemical moiety has the structure of formula LTp-I, R *** is the chemical formula A1 ** ~A23 ** The third chemical moiety is one of the structures:

[0126] Chemical formula TpL In one embodiment, the first chemical moiety has the structure of formula TpL,

[0127] [Chemical formula TpL] JPEG2025505549000097.jpg18170Acc 1 The above definition applies, R 4* represents a third chemical moiety having a structure of formula Q, @ TADF is TADF Moiety M TADF represents a single bond binding site connecting the to the bridging unit L, T #indicates a single bond attachment site linking a first chemical moiety to a second chemical moiety.

[0128] In a further embodiment, the first chemical moiety has the structure of formula TpL, R 4* is the chemical formula B1 4* ~B9 4* a third chemical moiety having one of the structures JPEG2025505549000098.jpg152170, where & 4* is R 4* to a first chemical moiety; @ TADF is TADF Moiety M TADF represents a single bond binding site connecting the to the bridging unit L, R f The above definitions apply.

[0129] In one embodiment, the first chemical moiety has the structure of formula TpL-I,

[0130] [Chemical formula TpL-I] JPEG2025505549000099.jpg36170, where R 5* , @ TADF , T # , Q 5 and Q 6 If , the above definition applies and Q 5 and Q 6 At least one of them is N.

[0131] In a further embodiment, the first chemical moiety has the structure of formula TpL-I, 5* is the chemical formula B1 4* ~B9 4* The third chemical moiety is one of the structures:

[0132] Chemical formula LoT In one embodiment, the first chemical moiety has the structure of formula LoT,

[0133] [Chemical formula LoT] JPEG2025505549000100.jpg18170Acc 1 , @ TADF , T # In this case, the above definition applies.

[0134] In one embodiment, the first chemical moiety has the structure of formula LoT-I,

[0135] [Chemical formula LoT-I] JPEG2025505549000101.jpg36170 where, @ TADF , T # , Q 5 and Q 6 If , the above definition applies and Q 5 and Q 6 At least one of them is N.

[0136] Chemical formula LmT In one embodiment, the first chemical moiety has the structure of formula LmT,

[0137] [Chemical formula LmT] JPEG2025505549000102.jpg23170Acc 1 , @ TADF , T # In this case, the above definition applies.

[0138] In one embodiment, the first chemical moiety has the structure of formula LmT-I,

[0139] [Chemical formula LmT-I] JPEG2025505549000103.jpg41170 where, @ TADF , T # , Q 5 and Q 6 If , the above definition applies and Q 5 and Q 6 At least one of them is N.

[0140] Chemical formula LpT In one embodiment, the first chemical moiety has the structure of formula LpT,

[0141] [Chemical formula LpT] JPEG2025505549000104.jpg18170Acc 1 , @ TADF , T # In this case, the above definition applies.

[0142] In one embodiment, the first chemical moiety has the structure of formula LpT-I,

[0143] [Chemical formula LpT-I] JPEG2025505549000105.jpg36170 where, @ TADF , T # , Q 5 and Q 6 If , the above definition applies and Q 5 and Q 6 At least one of them is N.

[0144] Chemical formula TmL In one embodiment, the first chemical moiety has the structure of formula TmL:

[0145] [Chemical formula TmL] JPEG2025505549000106.jpg18170Acc 1 , @ TADF , T # In this case, the above definition applies.

[0146] In one embodiment, the first chemical moiety has the structure of formula TmL-I,

[0147] [Chemical formula TmL-I] JPEG2025505549000107.jpg34170 where, @ TADF , T # , Q 5 and Q 6 If , the above definition applies and Q 5and Q 6 At least one of them is N.

[0148] Chemical formula WoT In one embodiment, the first chemical moiety has the structure of formula WoT:

[0149] [Chemical formula WoT] JPEG2025505549000108.jpg23170Acc 1 , @ TADF , W # In this case, the above definition applies.

[0150] In one embodiment, the first chemical moiety has the structure of formula WoT-I,

[0151] [Chemical formula WoT-I] JPEG2025505549000109.jpg41170 where, @ TADF , W # , Q 5 and Q 6 If , the above definition applies and Q 5 and Q 6 At least one of them is N.

[0152] Chemical formula WmL In one embodiment, the first chemical moiety has the structure of formula WmL,

[0153] [Chemical formula WmL] JPEG2025505549000110.jpg23170Acc 1 , @ TADF , W # In this case, the above definition applies.

[0154] In one embodiment, the first chemical moiety has the structure of formula WmL-I,

[0155] [Chemical formula WmL-I] JPEG2025505549000111.jpg41170 where, @ TADF , W# , Q 5 and Q 6 If , the above definition applies and Q 5 and Q 6 At least one of them is N.

[0156] In one embodiment, the first chemical moiety has the structure of formula Iaa:

[0157] [Chemical formula Iaa] JPEG2025505549000112.jpg56170 where, @ TADF , W # , Q 2 and Q 4 , Q 5 and Q 6 If , the above definition applies and Q 2 and Q 4 At least one of them is N, and Q 5 and Q 6 At least one of them is N.

[0158] In a preferred embodiment, Q 2 and Q 4 and Q are both N, thus forming a triazine moiety. 5 and Q 6 and Q are both N, thus forming a triazine moiety. 2 and Q 4 Both, and, to the extent that they exist, Q 1 , Q 5 and / or Q 4 Each is N, thus forming one or more triazine moieties.

[0159] In one embodiment, the first chemical moiety has the structure of formula Iab:

[0160] [Chemical formula Iab] JPEG2025505549000113.jpg56170 where, @ TADF , W # , Q 2and Q 4 , Q 5 and Q 6 If , the above definition applies and Q 2 and Q 4 At least one of them is N, and Q 5 and Q 6 At least one of them is N.

[0161] Second Chemical Moiety In a further embodiment of the invention, the second chemical moiety comprises or consists of the structure of formula IIb:

[0162] [Formula IIb] JPEG2025505549000114.jpg21170 where, R b are, in each occurrence, independently selected from the group consisting of: TADF Moiety M TADF The binding site of the single bond connecting the bridging unit L to the bridging unit L is hydrogen, deuterium, N(R 5 ) 2 , OR 5 , Si(R 5 ) 3 , B(OR 5 ) 2 , O.S.O. 2 R 5 , C.F. 3 ,CN,F,Br,I, C 1 -C 40 Alkyl, This can be optionally substituted with one or more substituents R 5 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R 5 C=CR 5 , C≡C, Si(R 5 ) 2 , Ge(R 5 ) 2 , Sn(R 5 ) 2 , C=O, C=S, C=Se, C=NR 5 , P(=O)(R 5 ), SO, SO2 , N.R. 5 , O, S or CONR 5 is replaced by C 1 -C 40 Alkoxy, This can be optionally substituted with one or more substituents R 5 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R 5 C=CR 5 , C≡C, Si(R 5 ) 2 , Ge(R 5 ) 2 , Sn(R 5 ) 2 , C=O, C=S, C=Se, C=NR 5 , P(=O)(R 5 ), SO, SO 2 , N.R. 5 , O, S or CONR 5 is replaced by C 1 -C 40 Thioalkoxy, This can be optionally substituted with one or more substituents R 5 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R 5 C=CR 5 , C≡C, Si(R 5 ) 2 , Ge(R 5 ) 2 , Sn(R 5 ) 2 , C=O, C=S, C=Se, C=NR 5 , P(=O)(R 5 ), SO, SO 2 , N.R. 5 , O, S or CONR 5 is replaced by C 2 -C 40 Alkenyl, This can be optionally substituted with one or more substituents R 5 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R 5C=CR 5 , C≡C, Si(R 5 ) 2 , Ge(R 5 ) 2 , Sn(R 5 ) 2 , C=O, C=S, C=Se, C=NR 5 , P(=O)(R 5 ), SO, SO 2 , N.R. 5 , O, S or CONR 5 is replaced by C 2 -C 40 Alkynyl, This can be optionally substituted with one or more substituents R 5 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R 5 C=CR 5 , C≡C, Si(R 5 ) 2 , Ge(R 5 ) 2 , Sn(R 5 ) 2 , C=O, C=S, C=Se, C=NR 5 , P(=O)(R 5 ), SO, SO 2 , N.R. 5 , O, S or CONR 5 is replaced by Optionally, one or more substituents R 5 C replaced with 6 -C 60 Aryl, and Optionally, one or more substituents R 5 C replaced with 3 -C 57 Heteroaryl, Otherwise the above definitions apply.

[0163] In a further embodiment of the invention, the second chemical moiety comprises or consists of the structure of formula IIc:

[0164] [Chemical formula IIc] JPEG2025505549000115.jpg21170, where R b is selected from the group consisting of: TADF Moiety M TADF The binding site of the single bond connecting the bridging unit L to the bridging unit L is hydrogen, deuterium, N(R 5 ) 2 , OR 5 , Si(R 5 ) 3 , B(OR 5 ) 2 , O.S.O. 2 R 5 , C.F. 3 ,CN,F,Br,I, C 1 -C 40 Alkyl, This can be optionally substituted with one or more substituents R 5 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R 5 C=CR 5 , C≡C, Si(R 5 ) 2 , Ge(R 5 ) 2 , Sn(R 5 ) 2 , C=O, C=S, C=Se, C=NR 5 , P(=O)(R 5 ), SO, SO 2 , N.R. 5 , O, S or CONR 5 is replaced by C 1 -C 40 Alkoxy, This can be optionally substituted with one or more substituents R 5 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R 5 C=CR 5 , C≡C, Si(R 5 ) 2 , Ge(R 5 ) 2 , Sn(R 5 ) 2 , C=O, C=S, C=Se, C=NR5 , P(=O)(R 5 ), SO, SO 2 , N.R. 5 , O, S or CONR 5 is replaced by C 1 -C 40 Thioalkoxy, This can be optionally substituted with one or more substituents R 5 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R 5 C=CR 5 , C≡C, Si(R 5 ) 2 , Ge(R 5 ) 2 , Sn(R 5 ) 2 , C=O, C=S, C=Se, C=NR 5 , P(=O)(R 5 ), SO, SO 2 , N.R. 5 , O, S or CONR 5 is replaced by C 2 -C 40 Alkenyl, This can be optionally substituted with one or more substituents R 5 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R 5 C=CR 5 , C≡C, Si(R 5 ) 2 , Ge(R 5 ) 2 , Sn(R 5 ) 2 , C=O, C=S, C=Se, C=NR 5 , P(=O)(R 5 ), SO, SO 2 , N.R. 5 , O, S or CONR 5 is replaced by C 2 -C 40 Alkynyl, This can be optionally substituted with one or more substituents R 5 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R 5 C=CR 5 , C≡C, Si(R 5 ) 2 , Ge(R 5 ) 2 , Sn(R 5 ) 2 , C=O, C=S, C=Se, C=NR 5 , P(=O)(R 5 ), SO, SO 2 , N.R. 5 , O, S or CONR 5 is replaced by Optionally, one or more substituents R 5 C replaced with 6 -C 60 Aryl, and Optionally, one or more substituents R 5 C replaced with 3 -C 57 Heteroaryl, Otherwise the above definitions apply.

[0165] In one embodiment of the present invention, R b is, in each occurrence, selected from the group consisting of: -TADF Moiety M TADF a single bond linking the linker unit L to the bridging unit L; -hydrogen, -deuterium, -Me, i Pr, t Bu, CN, CF 3 , -Me, i Pr, t Bu, CN, CF 3 and Ph, optionally substituted with one or more substituents independently selected from the group consisting of -Me, i Pr, t Bu, CN, CF 3 and Ph, -Me, i Pr, tBu, CN, CF 3 and Ph, -Me, i Pr, t Bu, CN, CF 3 and Ph; -Me, i Pr, t Bu, CN, CF 3 and Ph, -N(Ph) 2 .

[0166] In one embodiment, the fourth chemical moiety consisting of the structure of formula IIQ is identical to one or two second chemical moieties that comprise or consist of the structure of formula II.

[0167] In one embodiment, the fourth chemical moiety consisting of a structure of formula IIQ is different from one or two second chemical moieties that comprise or consist of a structure of formula II.

[0168] In a further embodiment of the invention, R a are, in each occurrence, independently selected from the group consisting of: TADF Moiety M TADF a single bond linking the linker unit L to the bridging unit L; Hydrogen, Me, i Pr, t Bu, CN, CF 3 Me, i Pr, t Bu, CN, CF 3 and Ph, optionally substituted with one or more substituents independently selected from the group consisting of Me, i Pr, t Bu, CN, CF 3and Ph, Me, i Pr, t Bu, CN, CF 3 and Ph, Me, i Pr, t Bu, CN, CF 3 and Ph; Me, i Pr, t Bu, CN, CF 3 and Ph, N(Ph) 2 .

[0169] In a further embodiment of the invention, R a are, in each occurrence, independently selected from the group consisting of: TADF Moiety M TADF a single bond linking the linker unit L to the bridging unit L; Hydrogen, Me, i Pr, t Bu, CN, CF 3 , Me, i Pr, t Bu, CN, CF 3 and Ph, optionally substituted with one or more substituents independently selected from the group consisting of Me, i Pr, t Bu, CN, CF 3 and Ph, Me, i Pr, t Bu, CN, CF 3 and Ph, Me, i Pr, t Bu, CN, CF 3 and Ph.

[0170] In further embodiments of the invention, the second chemical moiety has a structure of formula IIb, a structure of formula IIb-2, a structure of formula IIb-3, or a structure of formula IIb-4: JPEG2025505549000116.jpg21170IIb IIb-2 IIb-3 IIb-4 Where: R b are, in each occurrence, independently selected from the group consisting of: TADF Moiety M TADF a single bond linking the linker unit L to the bridging unit L; Hydrogen, deuterium, N(R 5 ) 2 , OR 5 , Si(R 5 ) 3 , B(OR 5 ) 2 , O.S.O. 2 R 5 , C.F. 3 ,CN,F,Br,I, C 1 -C 40 Alkyl, This can be optionally substituted with one or more substituents R 5 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R 5 C=CR 5 , C≡C, Si(R 5 ) 2 , Ge(R 5 ) 2 , Sn(R 5 ) 2 , C=O, C=S, C=Se, C=NR 5 , P(=O)(R 5 ), SO, SO 2 , N.R. 5 , O, S or CONR 5 is replaced by C 1 -C 40 Alkoxy, This can be optionally substituted with one or more substituents R 5 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R 5 C=CR 5 , C≡C, Si(R 5 ) 2 , Ge(R 5 ) 2 , Sn(R 5 ) 2 , C=O, C=S, C=Se, C=NR 5 , P(=O)(R 5 ), SO, SO 2 , N.R. 5 , O, S or CONR 5 is replaced by C 1 -C 40 Thioalkoxy, This can be optionally substituted with one or more substituents R 5 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R 5 C=CR 5 , C≡C, Si(R 5 ) 2 , Ge(R 5 ) 2 , Sn(R 5 ) 2 , C=O, C=S, C=Se, C=NR 5 , P(=O)(R 5 ), SO, SO 2 , N.R. 5 , O, S or CONR 5 is replaced by C 2 -C 40 Alkenyl, This can be optionally substituted with one or more substituents R 5 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R 5 C=CR 5 , C≡C, Si(R 5 ) 2, Ge(R 5 ) 2 , Sn(R 5 ) 2 , C=O, C=S, C=Se, C=NR 5 , P(=O)(R 5 ), SO, SO 2 , N.R. 5 , O, S or CONR 5 is replaced by C 2 -C 40 Alkynyl, This can be optionally substituted with one or more substituents R 5 is replaced by Here, one or more non-adjacent CH 2 The group is optionally R 5 C=CR 5 , C≡C, Si(R 5 ) 2 , Ge(R 5 ) 2 , Sn(R 5 ) 2 , C=O, C=S, C=Se, C=NR 5 , P(=O)(R 5 ), SO, SO 2 , N.R. 5 , O, S or CONR 5 is replaced by Optionally, one or more substituents R 5 C replaced with 6 -C 60 Aryl, and Optionally, one or more substituents R 5 C replaced with 3 -C 57 Heteroaryl, For additional variables, the above definitions apply.

[0171] In further embodiments of the invention, the second chemical moiety has a structure of formula IIc, a structure of formula IIc-2, a structure of formula IIc-3, or a structure of formula IIc-4: JPEG2025505549000117.jpg21170IIc IIc-2 IIc-3 IIc-4 Here, the above definitions apply.

[0172] In a further embodiment of the invention, R b is selected from the group consisting of: TADF Moiety M TADF a single bond linking the linker unit L to the bridging unit L; Me, i Pr, t Bu, CN, CF 3 , Me, i Pr, t Bu, CN, CF 3 and Ph, optionally substituted with one or more substituents independently selected from the group consisting of Me, i Pr, t Bu, CN, CF 3 and Ph, Me, i Pr, t Bu, CN, CF 3 and Ph, Me, i Pr, t Bu, CN, CF 3 and Ph; Me, i Pr, t Bu, CN, CF 3 and Ph, N(Ph) 2 .

[0173] In a further embodiment of the invention, R b are, in each occurrence, independently selected from the group consisting of: TADF Moiety M TADF a single bond linking the linker unit L to the bridging unit L; Me, i Pr, tBu, CN, CF 3 , Me, i Pr, t Bu, CN, CF 3 and Ph, optionally substituted with one or more substituents independently selected from the group consisting of Me, i Pr, t Bu, CN, CF 3 and Ph, Me, i Pr, t Bu, CN, CF 3 and Ph, Me, i Pr, t Bu, CN, CF 3 and Ph.

[0174] Examples of second chemical moieties are shown below: JPEG2025505549000118.jpg58170JPEG2025505549000119.jpg56170JPEG2025505549000120.jpg89170JPEG2025505549000121.jpg58170JPEG2025505549000122.jpg35170, #, Z, R a and R 5 In this case, the above definition applies.

[0175] In one embodiment, R a and R 5 are, in each occurrence, independently selected from the group consisting of: Hydrogen (H), methyl (Me), i-propyl (CH(CH 3 ) 2 )( i Pr), t-Butyl ( t Bu), phenyl (Ph), Me, i Pr, t Bu, CN, CF 3 and Ph, Diphenylamine (NPh 2 ).

[0176] The fourth chemical moiety In a further embodiment of the invention, the fourth chemical moiety comprises or consists of the structure of formula IIq:

[0177] [Chemical formula IIq] JPEG2025505549000123.jpg26170, where § Q and R f is defined as above.

[0178] In a further embodiment of the invention, R f are, in each occurrence, independently selected from the group consisting of: Hydrogen, Me, i Pr, t Bu, CN, CF 3 , Me, i Pr, t Bu, CN, CF 3 and Ph, optionally substituted with one or more substituents independently selected from the group consisting of Me, i Pr, t Bu, CN, CF 3 and Ph, Me, i Pr, t Bu, CN, CF 3 and Ph, Me, i Pr, t Bu, CN, CF 3and Ph; Me, i Pr, t Bu, CN, CF 3 and Ph, N(Ph) 2 .

[0179] In a further embodiment of the invention, R f are, in each occurrence, independently selected from the group consisting of: Hydrogen, Me, i Pr, t Bu, CN, CF 3 , Me, i Pr, t Bu, CN, CF 3 and Ph, optionally substituted with one or more substituents independently selected from the group consisting of Me, i Pr, t Bu, CN, CF 3 and Ph, Me, i Pr, t Bu, CN, CF 3 and Ph, Me, i Pr, t Bu, CN, CF 3 and Ph.

[0180] In further embodiments of the invention, the fourth chemical moiety has a structure of formula IIbq, a structure of formula IIbq-2, a structure of formula IIbq-3, or a structure of formula IIbq-4: JPEG2025505549000124.jpg21170IIbq IIbq-2 IIbq-3 IIbq-4 Where: R bq are, in each occurrence, independently selected from the group consisting of: Hydrogen, deuterium, N(R 5f ) 2 , OR 5f , Si(R 5f ) 3 , B(OR 5f ) 2 , O.S.O. 2 R 5f , C.F. 3 ,CN,F,Br,I, C 1 -C 40 Alkyl, This can be optionally substituted with one or more substituents R 5f is replaced by Here, one or more non-adjacent CH 2 The group is optionally R 5f C=CR 5f , C≡C, Si(R 5f ) 2 , Ge(R 5f ) 2 , Sn(R 5f ) 2 , C=O, C=S, C=Se, C=NR 5f , P(=O)(R 5f ), SO, SO 2 , N.R. 5f , O, S or CONR 5f is replaced by C 1 -C 40 Alkoxy, This can be optionally substituted with one or more substituents R 5f is replaced by Here, one or more non-adjacent CH 2 The group is optionally R 5f C=CR 5f , C≡C, Si(R 5f ) 2 , Ge(R 5f ) 2 , Sn(R 5f ) 2, C=O, C=S, C=Se, C=NR 5f , P(=O)(R 5f ), SO, SO 2 , N.R. 5f , O, S or CONR 5f is replaced by C 1 -C 40 Thioalkoxy, This can be optionally substituted with one or more substituents R 5f is replaced by Here, one or more non-adjacent CH 2 The group is optionally R 5f C=CR 5f , C≡C, Si(R 5f ) 2 , Ge(R 5f ) 2 , Sn(R 5f ) 2 , C=O, C=S, C=Se, C=NR 5f , P(=O)(R 5f ), SO, SO 2 , N.R. 5f , O, S or CONR 5f is replaced by C 2 -C 40 Alkenyl, This can be optionally substituted with one or more substituents R 5f is replaced by Here, one or more non-adjacent CH 2 The group is optionally R 5f C=CR 5f , C≡C, Si(R 5f ) 2 , Ge(R 5f ) 2 , Sn(R 5f ) 2 , C=O, C=S, C=Se, C=NR 5f , P(=O)(R 5f ), SO, SO 2 , N.R. 5f , O, S or CONR 5f is replaced by C 2 -C 40 Alkynyl, This can be optionally substituted with one or more substituents R 5fis replaced by Here, one or more non-adjacent CH 2 The group is optionally R 5f C=CR 5f , C≡C, Si(R 5f ) 2 , Ge(R 5f ) 2 , Sn(R 5f ) 2 , C=O, C=S, C=Se, C=NR 5f , P(=O)(R 5f ), SO, SO 2 , N.R. 5f , O, S or CONR 5f is replaced by Optionally, one or more substituents R 5f C replaced with 6 -C 60 Aryl, and Optionally, one or more substituents R 5f C replaced with 3 -C 57 Heteroaryl, For additional variables, the above definitions apply.

[0181] In further embodiments of the invention, the fourth chemical moiety has a structure of formula IIcq, a structure of formula IIcq-2, a structure of formula IIcq-3, or a structure of formula IIcq-4: JPEG2025505549000125.jpg22170IIcq IIcq-2 IIcq-3 IIcq-4 Here, the above definitions apply.

[0182] In a further embodiment of the invention, R bq are, in each occurrence, independently selected from the group consisting of: Me, i Pr, t Bu, CN, CF 3 , Me, i Pr, t Bu, CN, CF 3 and Ph, optionally substituted with one or more substituents independently selected from the group consisting of Me, i Pr, t Bu, CN, CF 3 and Ph, Me, i Pr, t Bu, CN, CF 3 and Ph, Me, i Pr, t Bu, CN, CF 3 and Ph; Me, i Pr, t Bu, CN, CF 3 and Ph, N(Ph) 2 .

[0183] In a further embodiment of the invention, R bq are, in each occurrence, independently selected from the group consisting of: Me, i Pr, t Bu, CN, CF 3 , Me, i Pr, t Bu, CN, CF 3 and Ph, optionally substituted with one or more substituents independently selected from the group consisting of Me, i Pr, t Bu, CN, CF 3 and Ph, Me, i Pr, t Bu, CN, CF 3 and Ph, Me, i Pr, t Bu, CN, CF 3 and Ph.

[0184] In one embodiment of the present invention, R bq are, in each occurrence, independently selected from the group consisting of: Me, i Pr, t Bu, CN, CF 3 and Ph, i Pr, t Bu, Ph, and Me, i Pr, t Bu, CN, CF 3 and Ph.

[0185] Exemplary embodiments of the fourth chemical moiety are shown below: JPEG2025505549000126.jpg59170JPEG2025505549000127.jpg54170JPEG2025505549000128.jpg156170JPEG2025505549000129.jpg36170$ of the fourth chemical moiety shown above Q , Z $ , R f and R 5f In this case, the above definition applies.

[0186] In one embodiment, R af and R 5f are, in each occurrence, independently selected from the group consisting of: Hydrogen (H), methyl (Me), i-propyl (CH(CH 3 ) 2 )( i Pr), t-Butyl ( t Bu), phenyl (Ph), Me,i Pr, t Bu, CN, CF 3 and Ph, Diphenylamine (NPh 2 ).

[0187] TADF Moiety M TADF Example In a preferred embodiment, M TADF is the chemical formula M TADF -1~M TADF -One of 48 structures to be selected:

[0188] [Chemical formula M TADF -1] JPEG2025505549000130.jpg54170[Chemical formula M TADF -2] JPEG2025505549000131.jpg54170[Chemical formula M TADF -3] JPEG2025505549000132.jpg54170[Chemical formula M TADF -4] JPEG2025505549000133.jpg54170[Chemical formula M TADF -5] JPEG2025505549000134.jpg54170[Chemical formula M TADF -6] JPEG2025505549000135.jpg54170[Chemical formula M TADF -7] JPEG2025505549000136.jpg59170[Chemical formula M TADF -8] JPEG2025505549000137.jpg59170[Chemical formula M TADF -9] JPEG2025505549000138.jpg59170[Chemical formula M TADF -10] JPEG2025505549000139.jpg59170[Chemical formula M TADF-11] JPEG2025505549000140.jpg59170[Chemical formula M TADF -12] JPEG2025505549000141.jpg59170[Chemical formula M TADF -13] JPEG2025505549000142.jpg59170[Chemical formula M TADF -14] JPEG2025505549000143.jpg59170[Chemical formula M TADF -15] JPEG2025505549000144.jpg59170[Chemical formula M TADF -16] JPEG2025505549000145.jpg59170[Chemical formula M TADF -17] JPEG2025505549000146.jpg59170[Chemical formula M TADF -18] JPEG2025505549000147.jpg59170[Chemical formula M TADF -19] JPEG2025505549000148.jpg59170[Chemical formula M TADF -20] JPEG2025505549000149.jpg59170[Chemical formula M TADF -twenty one] JPEG2025505549000150.jpg59170[Chemical formula M TADF -twenty two] JPEG2025505549000151.jpg59170[Chemical formula M TADF -twenty three] JPEG2025505549000152.jpg59170[Chemical formula M TADF -twenty four] JPEG2025505549000153.jpg59170[Chemical formula M TADF -25] JPEG2025505549000154.jpg36170[Chemical formula M TADF -26] JPEG2025505549000155.jpg36170[Chemical formula M TADF -27] JPEG2025505549000156.jpg64170[Chemical formula M TADF -28] JPEG2025505549000157.jpg44170[Chemical formula M TADF -29] JPEG2025505549000158.jpg54170[Chemical formula M TADF -30] JPEG2025505549000159.jpg54170[Chemical formula M TADF -31] JPEG2025505549000160.jpg54170[Chemical formula M TADF -32] JPEG2025505549000161.jpg54170[Chemical formula M TADF -33] JPEG2025505549000162.jpg54170[Chemical formula M TADF -34] JPEG2025505549000163.jpg54170[Chemical formula M TADF -35] JPEG2025505549000164.jpg54170[Chemical formula M TADF -36] JPEG2025505549000165.jpg54170[Chemical formula M TADF -37] JPEG2025505549000166.jpg54170[Chemical formula M TADF -38] JPEG2025505549000167.jpg54170[Chemical formula M TADF -39] JPEG2025505549000168.jpg54170[Chemical formula M TADF -40] JPEG2025505549000169.jpg54170[Chemical formula M TADF -41] JPEG2025505549000170.jpg54170[Chemical formula MTADF -42] JPEG2025505549000171.jpg54170[Chemical formula M TADF -43] JPEG2025505549000172.jpg54170[Chemical formula M TADF -44] JPEG2025505549000173.jpg54170[Chemical formula M TADF -45] JPEG2025505549000174.jpg54170[Chemical formula M TADF -46] JPEG2025505549000175.jpg54170[Chemical formula M TADF -47] JPEG2025505549000176.jpg64170[Chemical formula M TADF -48] JPEG2025505549000177.jpg64170, where R a and @ TADF In this case, the above definition applies.

[0189] As used throughout this specification, the terms "aryl" and "aromatic" are understood in the broadest sense as any monocyclic, bicyclic or polycyclic aromatic moiety. Thus, an aryl group contains 6 to 60 aromatic ring atoms, and a heteroaryl group contains 5 to 60 aromatic ring atoms, of which at least one is a heteroatom. Nevertheless, throughout this specification, the number of aromatic ring atoms is given in subscript numbers in the definitions of specific substituents. In particular, a heteroaromatic ring contains 1 to 3 heteroatoms. Furthermore, the terms "heteroaryl" and "heteroaromatic" are understood in the broadest sense as any monocyclic, bicyclic or polycyclic heteroaromatic moiety containing at least one heteroatom. The heteroatoms in each case may be the same or different and may be individually selected from the group consisting of N, O and S. Thus, the term "arylene" refers to a divalent substituent that possesses two attachment sites to other molecular structures and serves as a linker structure. If a group in an exemplary embodiment is defined differently from the definitions given herein, for example, if the number of aromatic ring atoms or the number of heteroatoms differs from the definitions given, the definitions in the exemplary embodiment apply. According to the present invention, a fused (annulated) aromatic or heteroaromatic polycycle is composed of two or more single aromatic or heteroaromatic rings that form a polycycle via a condensation reaction.

[0190] In particular, as used throughout this specification, the term "aryl group" or "heteroaryl group" refers to any of the following: benzene, naphthalene, anthracene, phenanthrene, pyrene, dihydropyrene, chrysene, perylene, fluoranthene, benzanthracene, benzphenanthrene, tetracene, pentacene, benzopyrene, furan, benzofuran, isobenzofuran, dibenzofuran, thiophene, benzothiophene, isobenzothiophene, dibenzothiophene; pyrrole, indole, isoindole, carbazole, pyridine, quinoline, isoquinoline, acridine, phenanthridine, benzo-5,6-quinoline, benzo-6,7-quinoline, benzo-7,8-quinoline, phenothiazine, phenoxazine, pyrazole, indazole, imidazole, benzimidazole, naphthoimidazole, phenanthridine, pyridoimidazole ... and pyrazinoimidazole, quinoxalinoimidazole, oxazole, benzoxazole, naphthoxazole, anthroxazole, phenanthroxazole, isoxazole, 1,2-thiazole, 1,3-thiazole, benzothiazole, pyridazine, benzopyridazine, pyrimidine, benzopyrimidine, 1,3,5-triazine, quinoxaline, pyrazine, phenazine, naphthyridine, carboline, benzocarboline, phenanthroline, 1,2,3-triazole, 1,2,4-triazole, benzotriazole, 1,2,3-oxadiazole, 1,2,4-oxadiazole, 1,2,5-oxadiazole, 1,2,3,4-tetrazine, purine, pteridine, indolizine and benzothiadiazole, or a group that can be attached via any position of the aromatic or heteroaromatic group derived from a combination of the aforementioned groups.

[0191] As used throughout this specification, the term "cyclic group" is understood in its broadest sense to refer to any monocyclic, bicyclic or polycyclic moiety.

[0192] As used throughout this specification, the term "alkyl group" is understood in the broadest sense as any linear, branched or cyclic alkyl substituent. In particular, the term "alkyl" includes the substituents methyl (Me), ethyl (Et), n-propyl (N-propyl ... n Pr), i-propyl ( i Pr), cyclopropyl, n-butyl ( n Bu), i-Butyl ( i Bu), s-Butyl ( s Bu), t-Butyl ( tBu), cyclobutyl, 2-methylbutyl, n-pentyl, s-pentyl, t-pentyl, 2-pentyl, neo-pentyl, cyclopentyl, n-hexyl, s-hexyl, t-hexyl, 2-hexyl, 3-hexyl, neo-hexyl, cyclohexyl, 1-methylcyclopentyl, 2-methylpentyl, n-heptyl, 2-heptyl, 3-heptyl, 4-heptyl, cycloheptyl, 1-methylcyclohexyl, n -octyl, 2-ethylhexyl, cyclooctyl, 1-bicyclo[2,2,2]octyl, 2-bicyclo[2,2,2]octyl, 2-(2,6-dimethyl)octyl, 3-(3,7-dimethyl)octyl, adamantyl, 2,2,2-trifluoroethyl, 1,1-dimethyl-n-hex-1-yl, 1,1-dimethyl-n-hept-1-yl, 1,1-dimethyl-n-oct-1-yl, 1,1-dimethyl-n- des-1-yl, 1,1-dimethyl-n-dodec-1-yl, 1,1-dimethyl-n-tetradec-1-yl, 1,1-dimethyl-n-hexades-1-yl, 1,1-dimethyl-n-octadec-1-yl, 1,1-diethyl-n-hex-1-yl, 1,1-diethyl-n-hept-1-yl, 1,1-diethyl-n-oct-1-yl, 1,1-diethyl-n-dec-1-yl, 1,1-diethyl-n-dodec- 1-yl, 1,1-diethyl-n-tetradec-1-yl, 1,1-diethyl-n-hexadec-1-yl, 1,1-diethyl-n-octadec-1-yl, 1-(n-propyl)-cyclohex-1-yl, 1-(n-butyl)-cyclohex-1-yl, 1-(n-hexyl)-cyclohex-1-yl, 1-(n-octyl)-cyclohex-1-yl and 1-(n-decyl)-cyclohex-1-yl.

[0193] As used throughout this specification, the term "alkenyl" includes straight-chain, branched and cyclic alkenyl substituents. The term "alkenyl group" includes, for example, the substituents ethenyl, propenyl, butenyl, pentenyl, cyclopentenyl, hexenyl, cyclohexenyl, heptenyl, cycloheptenyl, octenyl, cyclooctenyl or cyclooctadienyl.

[0194] As used throughout this specification, the term "alkynyl" includes straight-chain, branched and cyclic alkynyl substituents. The term "alkynyl group" includes, for example, ethynyl, propynyl, butynyl, pentynyl, hexynyl, heptynyl or octynyl.

[0195] As used throughout this specification, the term "alkoxy" includes straight chain, branched and cyclic alkoxy substituents. The term "alkoxy group" includes, for example, methoxy, ethoxy, n-propoxy, i-propoxy, n-butoxy, i-butoxy, s-butoxy, t-butoxy and 2-methylbutoxy.

[0196] As used throughout this specification, the term "thioalkoxy" includes straight chain, branched and cyclic thioalkoxy substituents, where the O in the exemplary alkoxy group is replaced with an S.

[0197] As used throughout this specification, the terms "halogen" and "halo" are also understood in the broadest sense, preferably fluorine, chlorine, bromine or iodine.

[0198] Whenever hydrogen is mentioned in this specification, it can be replaced in each instance by deuterium.

[0199] When a molecular fragment is described as being a substituent or attached to another moiety, the name may be described as just the fragment (e.g., naphthyl, dibenzofuryl) or as the whole molecule (e.g., naphthalene, dibenzofuran). As used herein, the above ways of describing a substituent or an attached fragment are considered equivalent.

[0200] In one embodiment, the organic molecules according to the invention have an excited state lifetime of 150 μs or less, 100 μs or less, in particular 50 μs or less, more preferably 10 μs or less, or 7 μs or less in a poly(methyl methacrylate) (PMMA) film containing 10 wt. % of the organic molecules at room temperature.

[0201] In one embodiment of the present invention, the organic molecule according to the present invention has a molecular weight of 5000 cm -1 Less than 3000 cm -1 less than 1500 cm -1 less than 1000 cm -1 Less than or extremely less than 500cm -1 ΔE, which corresponds to the energy difference between the first excited singlet state (S1) and the first excited triplet state (T1), is less than ST Figure 1 shows thermally activated delayed fluorescence (TADF) emitters exhibiting luminescence (luminescence) values.

[0202] In a further embodiment of the present invention, the organic molecules according to the present invention have an emission peak in the visible or near UV range, i.e. in the wavelength range of 380 to 800 nm, with a half-width of less than 0.50 eV, preferably less than 0.48 eV, more preferably less than 0.45 eV, even more preferably less than 0.43 eV, or even more preferably less than 0.40 eV, in a poly(methyl methacrylate) (PMMA) film containing 10 wt. % of the organic molecules at room temperature.

[0203] In a further embodiment of the present invention, the organic molecules according to the present invention have a "Blue Material Index" (BMI), calculated as the photoluminescence quantum yield (PLQY) (%) divided by the CIEy color coordinate of the emitted light, of more than 150, in particular more than 200, preferably more than 250, more preferably more than 300 or even more than 500.

[0204] In a further embodiment of the invention, the organic molecule according to the invention has an energy E HOMOwhich has a highest occupied molecular orbital of -6.2 eV or more, which is greater than -6.1 eV or more, more preferably greater than -6.0 eV or even greater than -5.9 eV or more.

[0205] The orbital energies and excited state energies are determined via experimental and quantum chemical methods, in particular computational methods using density functional theory calculations. The highest occupied molecular orbital energy E HOMO is determined to an accuracy of 0.1 eV from cyclic voltammetry measurements by methods known to those skilled in the art. The lowest unoccupied molecular orbital energy E LUMO is determined as the onset of the absorption spectrum.

[0206] The onset of the absorption spectrum is determined by calculating the intersection of a tangent to the absorption spectrum with the x-axis, the tangent to the absorption spectrum being set at the low energy side of the absorption band and at half maximum of the maximum intensity of the absorption spectrum.

[0207] The energy of the first excited triplet state T1 is determined from the onset of the emission spectrum at a low temperature, typically 77 K. For host compounds where the first excited singlet state and the lowest triplet state differ in energy by >0.4 eV, phosphorescence is mainly seen in the steady state spectrum in 2-Me-THF. The triplet energy is therefore determined as the onset of the phosphorescence spectrum. For TADF emitter molecules, the energy of the first excited triplet state T1 is determined from the onset of the delayed emission spectrum at 77 K, which is measured in a film of PMMA with 10% by weight of emitter, unless otherwise stated. For both host and emitter compounds, the energy of the first excited singlet state S1 is determined from the onset of the emission spectrum, which is measured in a film of PMMA with 10% by weight of host or emitter compound, unless otherwise stated. The onset of the emission spectrum is determined by calculating the intersection of the tangent to the emission spectrum with the x-axis. A tangent to the emission spectrum is established at the high energy side of the emission band (ie, increasing as the emission band goes from higher to lower energy values) and at the half maximum point of the maximum intensity of the emission spectrum.

[0208] A further aspect of the invention relates to the use of the organic molecules according to the invention as light emitters in optoelectronic devices.

[0209] The optoelectronic element is understood in the broadest sense as any element based on organic materials suitable for emitting light in the visible or near ultraviolet (UV) range, i.e. in the wavelength range from 380 to 800 nm. More preferably, the optoelectronic element is capable of emitting light in the visible range, i.e. in the wavelength range from 400 to 800 nm.

[0210] In the context of such applications, the optoelectronic element is more particularly selected from the group consisting of: Organic Light Emitting Diode (OLED), Light-emitting electrochemical cells, OLED sensors, especially gas and steam sensors that are not completely isolated from the outside, Organic diodes, ·Organic solar cells, Organic transistors, Organic field-effect transistors, Organic lasers, and Down conversion element.

[0211] In a preferred embodiment in the context of such an application, the optoelectronic device is a device selected from the group consisting of an organic light emitting diode (OLED), a light emitting electrochemical cell (LEC) and a light emitting transistor.

[0212] When used, in the light-emitting layer of an optoelectronic device, more particularly an OLED, the fraction of the organic molecules according to the invention is between 1% and 99% by weight, more particularly between 5% and 80% by weight. In an alternative embodiment, in the light-emitting layer, the proportion of said organic molecules is 100% by weight.

[0213] In one embodiment, the emissive layer comprises not only an organic molecule according to the present invention but also a host material whose triplet (T1) and singlet (S1) energy levels are energetically higher than the triplet (T1) and singlet (S1) energy levels of the organic molecule.

[0214] Emission layer EML In one embodiment, the emissive layer EML of the organic light-emitting diode of the present invention comprises (or consists essentially of) a composition comprising or consisting of: (i) 1 to 50% by weight, preferably 5 to 40% by weight, in particular 10 to 30% by weight, of one or more organic molecules according to the invention, (ii) 5 to 99% by weight, preferably 30 to 94.9% by weight, in particular 40 to 89% by weight, of at least one host compound H, and (iii) optionally 0 to 94% by weight, preferably 0.1 to 65% by weight, in particular 1 to 50% by weight, of at least one additional host compound D having a structure different from that of the molecule according to the invention, and (iv) optionally 0 to 94% by weight, preferably 0 to 65% by weight, in particular 0 to 50% by weight, of a solvent, and (v) optionally 0 to 30% by weight, in particular 0 to 20% by weight, preferably 0 to 5% by weight, of at least one additional emitter molecule F having a structure different from that of the molecules according to the invention.

[0215] Preferably, energy is transferable from the host compound H to one or more organic molecules of the invention, in particular from the first excited triplet state T1(H) of the host compound H to the first excited triplet state T1(E) of one or more organic molecules of the invention and / or from the first excited singlet state S1(H) of the host compound H to the first excited singlet state S1(E) of one or more organic molecules of the invention.

[0216] In one embodiment, the host compound H has an energy E in the range of −5 eV to −6.5 eV. HOMO (H), and one organic molecule E according to the present invention has a highest occupied molecular orbital HOMO (H) with energy E HOMO (E) has the highest occupied molecular orbital HOMO (E), where E HOMO (H)>E HOMO (E).

[0217] In a further embodiment, the host compound H has an energy E LUMO (H), and one organic molecule E according to the present invention has a lowest unoccupied molecular orbital LUMO (H) with energy E LUMO (E) has a lowest unoccupied orbital LUMO(E), where E LUMO (H)>E LUMO (E).

[0218] an emissive layer EML comprising at least one additional host compound D; In a further embodiment, the emissive layer EML of the organic light-emitting diode of the present invention comprises (or consists essentially of) a composition comprising or consisting of: (i) 1 to 50% by weight, preferably 5 to 40% by weight, in particular 10 to 30% by weight, of one organic molecule according to the invention, (ii) 5 to 99% by weight, preferably 30 to 94.9% by weight, in particular 40 to 89% by weight, of one host compound H, and (iii) 0 to 94% by weight, preferably 0.1 to 65% by weight, in particular 1 to 50% by weight, of at least one additional host compound D having a structure different from that of the molecule according to the invention, and (iv) optionally 0 to 94% by weight, preferably 0 to 65% by weight, in particular 0 to 50% by weight, of a solvent, and (v) optionally 0 to 30% by weight, in particular 0 to 20% by weight, preferably 0 to 5% by weight, of at least one additional emitter molecule F having a structure different from that of the molecules according to the invention.

[0219] In one embodiment of the organic light-emitting diode of the present invention, the host compound H has an energy E HOMO (H), and at least one additional host compound D has a highest occupied molecular orbital HOMO (H) with energy E HOMO (D) has the highest occupied molecular orbital HOMO (D), where E HOMO (H)>E HOMO (D). HOMO (H)>E HOMO (D) The relationship promotes efficient hole transport.

[0220] In a further embodiment, the host compound H has an energy E LUMO (H), and at least one additional host compound D has a lowest unoccupied molecular orbital LUMO (H) with energy E LUMO (D) has a lowest unoccupied molecular orbital LUMO (D), where E LUMO (H)>E LUMO (D). LUMO (H)>E LUMO (D) The relationship promotes efficient electron transport.

[0221] In one embodiment of the organic light-emitting diode of the present invention, the host compound H has an energy E HOMO The highest occupied molecular orbital (HOMO) with (H) and energy E LUMO(H) having a lowest unoccupied molecular orbital LUMO (H); At least one additional host compound D has an energy E HOMO The highest occupied molecular orbital (HOMO) with (D) and energy E LUMO (D) having a lowest unoccupied molecular orbital LUMO (D), The organic molecule E of the present invention has energy E HOMO (E) highest occupied molecular orbital HOMO (E), with energy E LUMO (E) having a lowest unoccupied molecular orbital LUMO (E); Where: E HOMO (H)>E HOMO (D), and the energy level of the highest occupied molecular orbital (HOMO) (E) of the organic molecule according to the present invention (E HOMO (E)) and the energy level of the highest occupied molecular orbital (HOMO) of the host compound H (E HOMO (H)) is between -0.5 eV and 0.5 eV, more preferably between -0.3 eV and 0.3 eV, even more preferably between -0.2 eV and 0.2 eV, or even more preferably between -0.1 eV and 0.1 eV; E LUMO (H)>E LUMO (D), and the energy level of the lowest unoccupied molecular orbital (LUMO) (E) of the organic molecule according to the present invention (E LUMO (E)) and the energy level of the lowest unoccupied molecular orbital (LUMO) (D) of at least one additional host compound D (E LUMO The difference from (D)) is -0.5 eV to 0.5 eV, more preferably -0.3 eV to 0.3 eV, even more preferably -0.2 eV to 0.2 eV, or even more preferably -0.1 eV to 0.1 eV.

[0222] Optoelectronic Devices In a further aspect, the present invention relates to an optoelectronic device comprising an organic molecule or composition as described herein, in particular in the form of a device selected from the group consisting of organic light emitting diodes (OLEDs), light emitting electrochemical cells, OLED sensors, in particular gas and vapor sensors that are not completely sealed off from the outside world, organic diodes, organic solar cells, organic transistors, organic field effect transistors, organic lasers and down conversion devices.

[0223] In a preferred embodiment, the optoelectronic device is a device selected from the group consisting of an organic light emitting diode (OLED), a light emitting electrochemical cell (LEC) and a light emitting transistor.

[0224] In one embodiment of the inventive optoelectronic device, the organic molecules according to the invention are used as emitter material in the light-emitting layer EML.

[0225] In one embodiment of the optoelectronic device of the present invention, the light-emitting layer EML consists of the inventive composition described herein.

[0226] When the optoelectronic device is an OLED, it can have, for example, the following layer structure: 1. Substrate 2. Anode layer A 3. Hole injection layer (HIL) 4. Hole transport layer (HTL) 5.Electron blocking layer (EBL) 6. Emitting layer (EML) 7. Hole Blocking Layer (HBL) 8.Electron transport layer (ETL) 9.Electron injection layer (EIL) 10. Cathode layer Here, the OLED may optionally include each layer and different layers may be combined, and the OLED may include one or more layers of each layer type defined above.

[0227] The optoelectronic device may also optionally include one or more protective layers that protect the device from damaging exposure to harmful substances in the environment, including vapors and / or gases.

[0228] In one embodiment, the optoelectronic device comprising at least one organic molecule according to the invention is an OLED having the following inverted layer structure: 1. Substrate 2. Cathode layer C 3.Electron injection layer (EIL) 4.Electron transport layer (ETL) 5. Hole Blocking Layer (HBL) 6. Light-emitting layer B 7.Electron blocking layer (EBL) 8. Hole transport layer (HTL) 9. Hole injection layer (HIL) 10. Anode layer A Here, the OLED (having an inverted stacked layer structure) may optionally include each layer, different layers may be combined, and the OLED may include one or more layers of each layer type defined above.

[0229] In one embodiment, the optoelectronic element is an OLED that can have a stacked structure. In this structure, individual units are stacked on top of each other, unlike the common arrangement in which OLEDs are arranged side by side. Mixed light is generated by the OLED that exhibits a stacked structure, and in particular, white light is generated by stacking a blue OLED, a green OLED, and a red OLED. The OLED that exhibits a stacked structure may also optionally include a charge generation layer (CGL), which is generally located between two OLED subunits and is generally configured as an n-doped layer and a p-doped layer. Generally, the n-doped layer of one CGL is located closer to the anode layer.

[0230] In one embodiment, the optoelectronic device is an OLED that includes two or more light-emitting layers between an anode and a cathode. In particular, the so-called tandem OLED includes three light-emitting layers, where one light-emitting layer emits red light, one light-emitting layer emits green light, and one light-emitting layer emits blue light, and may optionally include additional layers between each light-emitting layer, such as a charge generation layer, a charge blocking layer, or a charge transport layer. In a further embodiment, the light-emitting layers are stacked adjacent to each other. In a further embodiment, the tandem OLED includes a charge generation layer between each two light-emitting layers. Also, adjacent light-emitting layers or light-emitting layers separated by a charge generation layer can be merged.

[0231] The substrate is made of any material or composition of materials. Mostly, a glass slide is used as the substrate. Alternatively, a thin metal layer (e.g. copper, gold, silver or aluminum film) or a plastic film or a plastic slide can be used, which allows a higher level of flexibility. The anode layer A is made of a material that allows obtaining a mostly (essentially) transparent film. Since at least one of the two electrodes must be (essentially) transparent to allow light emission from the OLED, one of the anode layer A or the cathode layer C is transparent. Preferably, the anode layer A is rich in or consists of transparent conductive oxides (TCOs). Such an anode layer A may comprise, for example, indium tin oxide, aluminum zinc oxide, fluorine doped tin oxide, indium zinc oxide, PbO, SnO, zirconium oxide, molybdenum oxide, vanadium oxide, tungsten oxide, graphite, doped Si, doped Ge, doped GaAs, doped polyaniline, doped polypyrrole and / or doped polythiophene.

[0232] Preferably, the anode layer A is (essentially) indium tin oxide (ITO) (e.g., (InO 3 ) 0.9 (SnO 2 )0.1 The roughness of the anode layer A due to the transparent conducting oxide (TCO) is also mitigated by using a hole injection layer (HIL). The HIL also facilitates the injection of like charge carriers (i.e. holes) in that the transport of like charge carriers from the TCO to the hole transport layer (HTL) is promoted. The hole injection layer (HIL) is made of poly-3,4-ethylenedioxythiophene (PEDOT), polystyrenesulfonic acid (PSS), MoO 2 , V 2 O 5 , CuPC or CuI, in particular a mixture of PEDOT and PSS. The hole injection layer (HIL) can also prevent diffusion of metals from the anode layer A into the hole transport layer (HTL). For example, the HIL can be poly-3,4-ethylenedioxythiophene:polystyrenesulfonate (PEDOT:PSS), poly-3,4-ethylenedioxythiophene (PEDOT), 4,4',4"-tris[phenyl(m-tolyl)amino]triphenylamine (mMTDATA), 2,2',7,7'-tetrakis(n,n-diphenylamino)-9,9'-spirobifluorene (Spiro-TAD), N1,N1'-(biphenyl-4,4'-diyl)bis(N1-phenyl-N4,N4-di-m-tolylbenzene-1,4-diamine (DNTPD), N,N'-nis-(1-naphthalene-2-yl)phenylamine (NAPH), N,N'-bis ... It is also composed of N,N'-triphenyl-N,N'-bis-(1,1'-biphenyl)-4,4'-diamine (NPB), N,N'-diphenyl-N,N'-di-[4-(N,N-diphenylamino)phenyl]benzidine (NPNPB), N,N,N',N'-tetrakis(4-methoxyphenyl)benzidine (MeO-TPD), 1,4,5,8,9,11-hexaazatriphenylene-hexacarbonitrile (HAT-CN) and / or N,N'-diphenyl-N,N'-bis-(1-naphthyl)-9,9'-spirobifluorene-2,7-diamine (Spiro-NPD).

[0233] Adjacent to the anode layer A or the hole injection layer (HIL) is generally a hole transport layer (HTL). Any hole transport compound can be used here. For example, electron-rich heteroaromatic compounds such as triarylamines and / or carbazoles are also used as hole transport compounds. The HTL can reduce the energy barrier between the anode layer A and the light-emitting layer (EML). The hole transport layer (HTL) can also be an electron blocking layer (EBL). Preferably, the hole transport compound has a triplet state T1 with a relatively high energy level. For example, the hole transport layer (HTL) may be tris(4-carbazolyl-9-ylphenyl)amine (TCTA), poly(4-butylphenyl-diphenylamine) (poly-TPD), poly(4-butylphenyl-diphenylamine) (α-NPD), 4,4′-cyclohexylidene-bis[N,N-bis(4-methylphenyl)benzenamine] (TAPC), 4,4′,4″-tris[2-naphthyl(phenyl)-amino]triphenylamine (2-TNATA), Spiro-TAD, DNTPD, NPB, NPNPB, MeO-TPD, HAT-CN, and / or 9, The HTL may comprise a star-shaped heterocycle such as 9'-diphenyl-6-(9-phenyl-9H-carbazol-3-yl)-9H,9'H-3,3'-bicarbazole (TrisPcz). The HTL may also comprise a p-doped layer consisting of an inorganic or organic dopant in an organic hole-transporting matrix. The inorganic dopants may be transition metal oxides such as vanadium oxide, molybdenum oxide or tungsten oxide. The organic dopants may be tetrafluorotetracyanoquinodimethane (F 4 -TCNQ), copper-pentafluorobenzoate (Cu(I)pFBz) or transition metal complexes can be used.

[0234] The EBL may include, for example, 1,3-bis(carbazol-9-yl)benzene (mCP), TCTA, 2-TNATA, 3,3-di(9H-carbazol-9-yl)biphenyl (mCBP), 3,5-di(9H-carbazol-9-yl)phenyl]triphenylsilane (SiMCP), DPEPO, tris-Pcz, 9-(4-tert-butylphenyl)-3,6-bis(triphenylsilyl)-9H-carbazole (CzSi), and / or N,N'-dicarbazolyl-1,4-dimethylbenzene (DCB).

[0235] Adjacent to the hole transport layer (HTL) is generally located an emissive layer (EML). The emissive layer (EML) comprises at least one emissive molecule. In particular, the EML comprises at least one emissive molecule according to the present invention. In one embodiment, the emissive layer comprises only organic molecules according to the present invention. Generally, the EML further comprises one or more host materials. For example, the host material may be 4,4'-bis-(N-carbazolyl)-biphenyl (CBP), mCP, mCBP, dibenzo[b,d]thiophen-2-yltriphenylsilane (Sif87), CzSi, 3,5-di(9H-carbazol-9-yl)phenyl]triphenylsilane (SiMCP), dibenzo[b,d]thiophen-2-yl)diphenylsilane (Sif88), bis[2-(diphenylphosphino)phenyl]etheroxide (DPEPO), 9-[3-(dibenzofuran-2-yl)phenyl]-9H-carbazole, 9-[3-(dibenzofuran-2-yl)phenyl]-9H-carbazole, [3,5-bis(2-dibenzofuranyl)phenyl]-9H-carbazole, 9-[3,5-bis(2-dibenzothiophenyl)phenyl]-9H-carbazole, 2,4,6-tris(biphenyl-3-yl)-1,3,5-triazine (T2T), 2,4,6-tris(triphenyl-3-yl)-1,3,5-triazine (T3T) and / or 2,4,6-tris(9,9'-spirobifluoren-2-yl)-1,3,5-triazine (TST). The host material should generally be selected to exhibit a first triplet (T1) and a first singlet (S1) energy level that is energetically higher than the first triplet (T1) and the first singlet (S1) energy level of the organic molecule.

[0236] In one embodiment of the present invention, the EML comprises a so-called mixed host system, which has at least one hole-dominant host and one electron-dominant host. In a particular embodiment, the EML comprises a mixed host system comprising exactly one light-emitting organic molecule according to the present invention, T2T as an electron-dominant host, and a host selected from CBP, mCP, mCBP, 9-[3-(dibenzofuran-2-yl)phenyl]-9H-carbazole, 9-[3-(dibenzofuran-2-yl)phenyl]-9H-carbazole, 9-[3-(dibenzothiophen-2-yl)phenyl]-9H-carbazole, 9-[3,5-bis(2-dibenzofuranyl)phenyl]-9H-carbazole, and 9-[3,5-bis(2-dibenzothiophenyl)phenyl]-9H-carbazole as a hole-dominant host. In a further embodiment, the EML comprises 50-80% by weight, preferably 60-75% by weight, of a host selected from CBP, mCP, mCBP, 9-[3-(dibenzofuran-2-yl)phenyl]-9H-carbazole, 9-[3-(dibenzofuran-2-yl)phenyl]-9H-carbazole, 9-[3-(dibenzothiophen-2-yl)phenyl]-9H-carbazole, 9-[3,5-bis(2-dibenzofuranyl)phenyl]-9H-carbazole and 9-[3,5-bis(2-dibenzothiophenyl)phenyl]-9H-carbazole, 10-45% by weight, preferably 15-30% by weight, of T2T, and 5-40% by weight, preferably 10-30% by weight, of an emissive molecule according to the present invention.

[0237] Adjacent to the light-emitting layer (EML) may be an electron-transporting layer (ETL). Any electron transporter may be used here. Exemplarily, electron-deficient compounds such as benzimidazole, pyridine, triazole, oxadiazole (e.g., 1,3,4-oxadiazole), phosphine oxides, and sulfones may be used. The electron transporter may also be a star-shaped heterocycle such as 1,3,5-tri(1-phenyl-1H-benzo[d]imidazol-2-yl)phenyl (TPBi). The ETL may be 2,9-bis(naphthalene-2-yl)-4,7-diphenyl-1,10-phenanthroline (NBphen), aluminum-tris(8-hydroxyquinoline) (Alq 3 ), diphenyl-4-triphenylsilylphenyl-phosphine oxide (TSPO1), 2,7-di(2,2'-bipyridin-5-yl)triphenyl (BPyTP2), dibenzo[b,d]thiophen-2-yltriphenylsilane (Sif87), dibenzo[b,d]thiophen-2-yl)diphenylsilane (Sif88), 1,3-bis[3,5-di(pyridin-3-yl)phenyl]benzene (BmPyPhB) and / or 4,4'-bis-[2-(4,6-diphenyl-1,3,5-triazinyl)]-1,1'-biphenyl (BTB). Optionally, the ETL is also doped with a material such as Liq. The electron transport layer (ETL) can also block holes. Alternatively, a hole blocking layer (HBL) is introduced.

[0238] Examples of HBL include 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline = bathocuproine (BCP), bis(8-hydroxy-2-methylquinoline)-(4-phenylphenoxy)aluminum (BAlq), 2,9-bis(naphthalene-2-yl)-4,7-diphenyl-1,10-phenanthroline (NBphen), and aluminum-tris(8-hydroxyquinoline) (Alq 3), diphenyl-4-triphenylsilylphenyl-phosphine oxide (TSPO1), 2,4,6-tris(biphenyl-3-yl)-1,3,5-triazine (T2T), 2,4,6-tris(triphenyl-3-yl)-1,3,5-triazine (T3T), 2,4,6-tris(9,9'-spirobifluoren-2-yl)-1,3,5-triazine (TST), and / or 1,3,5-tris(N-carbazolyl)benzene / 1,3,5-tris(carbazol-9-yl)benzene (TCB / TCP).

[0239] Adjacent to the electron transport layer (ETL) may be a cathode layer C. The cathode layer C may, for example, comprise or consist of a metal (e.g. Al, Au, Ag, Pt, Cu, Zn, Ni, Fe, Pb, LiF, Ca, Ba, Mg, In, W or Pd) or a metal alloy. For practical reasons, the cathode layer C may also consist of an (essentially) opaque metal such as Mg, Ca or Al. Alternatively or additionally, the cathode layer C may also comprise graphite and / or carbon nanotubes (CNTs). Alternatively, the cathode layer C may also consist of nanoscale silver wires.

[0240] The OLED may optionally further include a protective layer (also called an electron injection layer (EIL)) between the electron transport layer (ETL) and the cathode layer C. The layer may be any of lithium fluoride, cesium fluoride, silver, 8-hydroxyquinolinolatolithium (Liq), Li 2 O, BaF 2 , MgO and / or NaF.

[0241] Optionally, the electron transport layer (ETL) and / or the hole blocking layer (HBL) may also comprise one or more host compounds.

[0242] To additionally modify the emission and / or absorption spectrum of the emissive layer EML, the emissive layer EML may further comprise one or more additional emitter molecules F. Such emitter molecules F may be any emitter molecule known in the art. Preferably, such emitter molecules F are molecules having a structure different from that of the molecules according to the invention. The emitter molecules F may optionally be TADF emitters. Alternatively, the emitter molecules F may optionally be fluorescent and / or phosphorescent emitter molecules capable of shifting the emission and / or absorption spectrum of the emissive layer EML. For example, triplet and / or singlet excitons may be induced in the ground state S 0 Before being relaxed to , the organic emitter molecule according to the invention can be transferred to the emitter molecule F, which can emit light that is typically red-shifted compared to the light emitted by the organic molecule. Optionally, the emitter molecule F can also induce a two-photon effect (i.e., absorption of two photons that are half the maximum absorbed energy).

[0243] Alternatively, the optoelectronic device (e.g., an OLED) may be, for example, an essentially white optoelectronic device. For example, such a white optoelectronic device may comprise at least one (deep) blue emitter molecule and one or more emitter molecules emitting green and / or red light. And, optionally, there may be energy transfer between two or more molecules, as described above.

[0244] As used herein, unless more specifically defined in a particular context, the hue designations of emitted and / or absorbed light are as follows: Purple: >380~420nm wavelength range Deep blue: wavelength range >420~480nm Sky blue: Wavelength range >480~500nm Green: >500~560nm wavelength range Yellow: >560~580nm wavelength range Orange: >580~620nm wavelength range Red: Wavelength range of >620~800nm.

[0245] Associated with the emitter molecule, such hues exhibit maximum emission, so for example, a deep blue emitter has a maximum emission in the range >420-480 nm, a sky blue emitter has a maximum emission in the range >480-500 nm, a green emitter has a maximum emission in the range >500-560 nm, and a red emitter has a maximum emission in the range >620-800 nm.

[0246] Further embodiments of the present invention relate to OLEDs that emit light having CIEx and CIEy color coordinates close to the CIEx (=0.131) and CIEy (=0.046) color coordinates of primary blue (CIEx=0.131 and CIEy=0.046) as defined by ITU-R Recommendation BT.2020 (Rec.2020), which are suitable for use in UHD (Ultra High Definition) displays, such as UHD-TVs. In this paragraph, the term "close" refers to the range of CIEx and CIEy coordinates provided at the end of this paragraph. While in commercial applications, a top light-emitting element (where the top electrode is transparent) is typically used, the test element used throughout the present invention shows a bottom light-emitting element (where the bottom electrode and substrate are transparent). The CIEy color coordinates of the blue element decrease by up to 2 times when changing from the bottom light-emitting element to the top light-emitting element, but the CIEx remains almost the same (Okinaka et al. doi:10.1002 / sdtp.10480).Accordingly, a further embodiment of the present invention relates to an OLED whose emission exhibits a CIEx color coordinate of 0.02 to 0.30, preferably 0.03 to 0.25, more preferably 0.05 to 0.20, even more preferably 0.08 to 0.18, or even more preferably 0.10 to 0.15, and / or a CIEy color coordinate of 0.00 to 0.45, preferably 0.01 to 0.30, more preferably 0.02 to 0.20, even more preferably 0.03 to 0.15, or even more preferably 0.04 to 0.10.

[0247] Further embodiments of the present invention relate to OLEDs that emit light with CIEx and CIEy color coordinates close to the CIEx (=0.170) and CIEy (=0.797) color coordinates of primary green (CIEx=0.170 and CIEy=0.797) as defined by ITU-R Recommendation BT.2020 (Rec.2020), which are suitable for use in UHD displays, e.g., UHD-TVs. In this paragraph, the term "close" refers to the range of CIEx and CIEy coordinates provided at the end of this paragraph. In commercial applications, typically a top light-emitting element (where the top electrode is transparent) is used, while the test element used throughout the present invention shows a bottom light-emitting element (where the bottom electrode and substrate are transparent). The CIEy color coordinates of the blue element decrease by up to two times when changing from a bottom light-emitting element to a top light-emitting element, while the CIEx remains almost unchanged (Okinaka et al. doi:10.1002 / sdtp.10480). Thus, a further embodiment of the present invention relates to an OLED whose emission exhibits CIEx color coordinates of 0.06 to 0.34, preferably 0.07 to 0.29, more preferably 0.09 to 0.24, even more preferably 0.12 to 0.22, or even more preferably 0.14 to 0.19, and / or CIEy color coordinates of 0.75 to 1.20, preferably 0.76 to 1.05, more preferably 0.77 to 0.95, even more preferably 0.78 to 0.90, or even more preferably 0.79 to 0.85.

[0248] Further embodiments of the present invention relate to OLEDs that emit light with CIEx and CIEy color coordinates close to the CIEx (=0.708) and CIEy (=0.292) color coordinates of primary red (CIEx=0.708 and CIEy=0.292) as defined by ITU-R Recommendation BT.2020 (Rec.2020), which are suitable for use in UHD displays, e.g., UHD-TVs. In this paragraph, the term "close" refers to the range of CIEx and CIEy coordinates provided at the end of this paragraph. In commercial applications, typically a top light-emitting element (where the top electrode is transparent) is used, while the test element used throughout the present invention shows a bottom light-emitting element (where the bottom electrode and substrate are transparent). The CIEy color coordinates of the blue element decrease by up to two times when changing from a bottom light-emitting element to a top light-emitting element, while the CIEx remains almost unchanged (Okinaka et al. doi:10.1002 / sdtp.10480). Thus, a further embodiment of the present invention relates to an OLED whose emission exhibits CIEx colour coordinates of 0.60 to 0.88, preferably 0.61 to 0.83, more preferably 0.63 to 0.78, even more preferably 0.66 to 0.76 or even more preferably 0.68 to 0.73, and / or CIEy colour coordinates of 0.25 to 0.70, preferably 0.26 to 0.55, more preferably 0.27 to 0.45, even more preferably 0.28 to 0.40 or even more preferably 0.29 to 0.35.

[0249] Thus, a further aspect of the present invention is 2 and / or an external quantum efficiency of more than 8%, preferably more than 10%, more preferably more than 13%, even more preferably more than 15%, or even more than 20%; and / or an emission maximum between 420 nm and 500 nm, preferably between 430 nm and 490 nm, more preferably between 440 nm and 480 nm, even more preferably between 450 nm and 470 nm; and / or an emission maximum of less than 500 cd / m 2In particular, the present invention relates to OLEDs exhibiting LT80 values ​​of greater than 100 h, preferably greater than 200 h, more preferably greater than 400 h, even more preferably greater than 750 h, or even more preferably greater than 1000 h.

[0250] The optoelectronic device, in particular the OLED, according to the invention may be produced by any means of vapor deposition and / or liquid processes. Thus, at least one layer may be - Produced by the sublimation process; -Manufactured by organic vapor phase deposition process, - Produced by a carrier gas sublimation process; - Solution processed or printed.

[0251] The methods used to manufacture optoelectronic devices, in particular OLEDs, according to the present invention are known in the art. The different layers are deposited individually and successively on a suitable substrate by subsequent deposition steps. The individual layers may be deposited using the same or different deposition methods.

[0252] For example, the vapor deposition processes include thermal (co)evaporation, chemical vapor deposition, and physical vapor deposition. For active matrix OLED displays, an AMOLED backplane is used as the substrate. The individual layers are also processed from solutions or dispersions using appropriate solvents. For example, solution deposition processes include spin coating, dip coating, and jet printing. Solution processing is optionally performed in an inert atmosphere (e.g., nitrogen atmosphere), and the solvent is completely or partially removed by means known in the art.

[0253] Working Example General synthesis method M BN -LM TADF Synthesis of: JPEG2025505549000178.jpg56170JPEG2025505549000179.jpg83170

[0254] M BN - Hal E1, preferably M BN -Cl is the M TADF -L-boronic ester E2 (or M TADF -L-boronic acid) to achieve the desired product P1.

[0255] for example: E1 (1.0 equivalent), E2 (1.5 equivalent), tetrakis(triphenylphosphine)palladium(0) (CAS-No. 14221-01-3, 0.04 equivalent) and K 3 PO 4 (CAS-No. 7778-53-2, 2.5 equiv.) was combined in a degassed mixture of dioxane and water (5:1 by volume) and stirred at reflux for 16 h. After cooling to room temperature, the crude product was purified via aqueous walk-up followed by recrystallization or column chromatography to obtain the desired target compound P1 as a solid.

[0256] P1 can be synthesized via a Suzuki-type coupling reaction as shown above, where I1 reacts with a boronic acid or boronic ester (M TADF -LB(OH) 2 or M TADF -LB(OR) 2 , e.g., M TADF -L-BPin(Pin=O 2 C 2 (CH 3 ) 4 )), for example, bis(pinacolato)diboron (B 2 Pin 2 , CAS: 73183-34-3) and then transferred to a boronic acid or boronic ester via Suzuki-type coupling reaction to M TADF -L-Hal (Hal is Br or Cl, preferably Br).

[0257] M TADF -L-Hal and M TADF -LB(OH) 2 or M TADF -LB(OR) 2 Synthesis of JPEG2025505549000180.jpg55170

[0258] Acc-Br (1.0 equiv.) Chloro-fluoro-phenylboronic acid ester (1.0-1.5 equiv.), Pd(PPh 3 ) 4 (Tetrakis(triphenylphosphine)palladium(0) (CAS: 14221-01-3, 0.10 equiv.) and potassium carbonate (3.0 equiv.) were stirred overnight at 70° C. in THF / water (4:1) under nitrogen atmosphere. After cooling to room temperature (rt), the reaction mixture was extracted with ethyl acetate / brine. The organic phase was collected, the organic solvent was removed, and the crude product Z was obtained. TADF 0 was purified by MPLC or recrystallization.

[0259] Acc-Br is preferably selected from structures of the formulae Cl1 to Cl23: JPEG2025505549000181.jpg124170JPEG2025505549000182.jpg50170

[0260] Z TADF 0 (1 eq.), the corresponding donor molecule DH (1 eq.) and tripotassium phosphate (3 eq.) were suspended in DMSO under nitrogen atmosphere and stirred at 120°C for 12-16 h. The reaction mixture was then poured into excess water to precipitate the product. The precipitate was filtered, washed with water and dried under vacuum. The crude product was purified by recrystallization or flash chromatography. Product M TADF 1-Hal was obtained as a solid.

[0261] Typical conditions for the aromatic nucleophilic substitution reaction of nitrogen heterocycles with aryl halides, preferably aryl fluorides, include the use of a base such as, for example, tripotassium phosphate or sodium hydride in an aprotic polar solvent such as, for example, dimethylsulfoxide (DMSO) or N,N-dimethylformamide (DMF).

[0262] In particular, the donor molecule DH is a 3,6-substituted carbazole (e.g., 3,6-dimethylcarbazole, 3,6-diphenylcarbazole, 3,6-di-tert-butylcarbazole), a 2,7-substituted carbazole (e.g., 2,7-dimethylcarbazole, 2,7-diphenylcarbazole, 2,7-di-tert-butylcarbazole), a 1,8-substituted carbazole (e.g., 1,8-dimethylcarbazole, 1,8-diphenylcarbazole, 1 ,8-di-tert-butylcarbazole), 1-substituted carbazoles (e.g., 1-methylcarbazole, 1-phenylcarbazole, 1-tert-butylcarbazole), 2-substituted carbazoles (e.g., 2-methylcarbazole, 2-phenylcarbazole, 2-tert-butylcarbazole), or 3-substituted carbazoles (e.g., 3-methylcarbazole, 3-phenylcarbazole, 3-tert-butylcarbazole). JPEG2025505549000183.jpg51170

[0263] M TADF 1-Hal (1.0 equiv.), diboronic ester of the bridging unit, (RO) 2 BLB(OR) 2 (e.g., 1,3-phenyldiboronic acid, bis(pinacol) ester) (1.0-1.5 equivalents), Pd(PPh 3 ) 4(Tetrakis(triphenylphosphine)palladium(0) (CAS: 14221-01-3, 0.10 equiv.) and potassium carbonate (3 equiv.) were stirred overnight at 70° C. in THF / water (4:1) under nitrogen atmosphere. After cooling to room temperature (RT), the reaction mixture was extracted with ethyl acetate / brine. The organic phase was collected, the organic solvent was removed, and the crude product M was obtained. TADF 1-LB(OR) 2 was purified by flash chromatography or recrystallization.

[0264] for example: JPEG2025505549000184.jpg74170 Alternative Route: JPEG2025505549000185.jpg50170

[0265] M TADF 1-B(OR) 2 (1.0 equivalent), dihalide of the bridging unit, Hal-L-Hal (e.g., 1,3-dibromophenyl) (1.0-1.5 equivalent), Pd(PPh 3 ) 4 (Tetrakis(triphenylphosphine)palladium(0) (CAS: 14221-01-3, 0.10 equiv.) and potassium carbonate (3 equiv.) were stirred overnight at 70° C. in THF / water (4:1) under nitrogen atmosphere. After cooling to room temperature (RT), the reaction mixture was extracted with ethyl acetate / brine. The organic phase was collected, the organic solvent was removed, and the crude product M was obtained. TADF 1-L-Hal was purified by flash chromatography or recrystallization.

[0266] for example: JPEG2025505549000186.jpg63170

[0267] M TADF 1-B(OR) 2 , e.g., M TADF To obtain 1-BPin, M TADF 1-Hal can be converted to a boronic ester, such as bis(pinacolato)diboron (B 2 Pin 2, CAS: 73183-34-3).

[0268] By choosing the right reaction conditions, TADF 1-L-Hal is M TADF 1-Hal and (RO) 2 Reaction with BL-Hal (e.g., M TADF 1-Br and (RO) 2 BL-Cl) and M TADF 1-LB(OR) 2 As mentioned above, M TADF 1-B(OR) 2 It can be obtained by reaction with Hal-L-Hal followed by boronization.

[0269] A third chemical moiety having the structure of formula Q is present in the molecule, TADF When 1 is bonded to the bridging unit L via a structure of formula Q, the structure is M TADF 1-B(OR) 2 In the reaction with TADF In the reaction with 1-Hal, it must be introduced as a diboronic ester of the structure Q, where the conditions previously described apply.

[0270] for example: JPEG2025505549000187.jpg141170

[0271] Pd(PPh 3 ) 4(Tetrakis(triphenylphosphine)palladium(0) (CAS: 14221-01-3) is used as the Pd catalyst during the Suzuki coupling reaction. Other catalyst alternatives are known in the art (tris(dibenzylideneacetone)dipalladium(0)) or [1,1'-bis(diphenylphosphino)ferrocene]-palladium(II) dichloride). For example, the ligands include S-Phos ([2-dicyclohexylphosphino-2',6'-dimethoxy-1,1'-biphenyl] or SPhos), X-Phos (2-(dicyclohexylphosphino)-2",4",6"-triisopropylbiphenyl or XPhos) and P(Cy) 3 (tricyclohexylphosphine). The salt is, for example, selected from tripotassium phosphate and potassium acetate, and the solvent is a pure solvent such as THF / water, toluene or dioxane, or a mixture such as toluene / dioxane / water or dioxane / toluene. Those skilled in the art can determine which combination of Pd catalyst, ligand, salt and solvent will give a high reaction yield.

[0272] HPLC-MS HPLC-MS analysis is performed on an Agilent HPLC (1100 series) equipped with an MS-detector (Thermo LTQ XL).

[0273] For example, a typical HPLC method is as follows: A reversed phase column 4.6 mm×150 mm, particle size 3.5 μm from Agilent (ZORBAX Eclipse Plus 95 Å C18, 4.6×150 mm, 3.5 μm HPLC column) is used for the HPLC. The HPLC-MS measurements are performed at room temperature (rt) with the following gradient:

[0274] [Table 1]

[0275] The following solvent mixtures were used:

[0276] [Table 2]

[0277] From the analyte solution at a concentration of 0.5 mg / mL, an injection volume of 5 μL is taken for the measurement.

[0278] The ionization of the probe is by cation (APCI + ) ionization mode or negative (APCI - ) ionization mode using an APCI (atmospheric pressure chemical ionization) source.

[0279] Cyclic Voltammetry Cyclic voltammograms are performed at concentrations of 10 to 150 nm in dichloromethane or a suitable solvent and a suitable supporting electrolyte (e.g., 0.1 mol / L tetrabutylammonium hexafluorophosphate). -3 The measurement is performed at room temperature in a nitrogen atmosphere using a three-electrode assembly (working electrode and counter electrode: Pt wire, reference electrode: Pt wire) and FeCp 2 / FeCp 2 + The HOMO data were corrected using ferrocene as an internal standard relative to a saturated calomel electrode (SCE).

[0280] Density functional theory calculations The molecular structures were optimized using the BP86 function and the Resolution of Identity (RI) approach. The excitation energies were calculated with the Time-Dependent DFT (TD-DFT) method using the (BP86) optimized structures. The orbital energies and excited state energies were calculated with the B3LYP function. For numerical integration, the Def2-SVP basis set and m4-grid were used. The Turbomole program package was used for all calculations.

[0281] optical physical measurements Sample preparation: spin coating Equipment: Spin150, SPS euro Sample concentration is 10 mg / ml dissolved in an appropriate solvent.

[0282] Program: 1) 400 U / min for 3 sec, 1000 U / min for 20 sec (1000U / min). 3) 4000 U / min for 10 sec (1000U / min). After coating, the film was dried at 70° C. for 1 min.

[0283] Photoluminescence spectroscopy and time-correlated single photon counting (TCSPC) Steady-state emission spectroscopy is measured using a Model FluoroMax-4 (Horiba Scientific) equipped with a 150 W Xenon-Arc lamp, excitation and emission monochromators, a Hamamatsu R928 photomultiplier tube, and time-correlated single photon counting options. Standard correction fits are used to correct the emission and excitation spectra.

[0284] The excited state lifetimes are determined using the same system using the TCSPC method with an FM-2013 instrument and a Horiba Yvon TCSPC hub.

[0285] Excitation Source: NanoLED 370 (wavelength: 371 nm, pulse duration: 1.1 ns) NanoLED 290 (wavelength: 294nm, pulse duration: <1ns) SpectraLED 310 (wavelength: 314nm) SpectraLED 355 (wavelength: 355nm) Data analysis (exponential fit) is performed using the software suite DataStation and DAS6 analysis software. The fit is determined using the chi-squared test.

[0286] Photoluminescence quantum yield measurement For photoluminescence quantum yield (PLQY) measurements, an Absolute PL quantum yield measurement C9920-03G system (Hamamatsu Photonics) was used. Quantum yields and CIE coordinates were determined using the software U6039-05 version 3.6.0.

[0287] Emission maxima are given in nm, quantum yields Φ are given in %, and CIE coordinates are given as x,y values.

[0288] The PLQY is determined using the following protocol: 1) Quality assurance: Anthracene (known concentration) in ethanol is used as the standard.

[0289] 2) Excitation wavelength: The absorption maximum of the organic molecule is determined and that wavelength is used to excite the molecule.

[0290] 3) Measurement The quantum yield is measured on solution or film samples in a nitrogen atmosphere. The yield is calculated using the following equation:

[0291]

number

[0292] Fabrication and characterization of optoelectronic devices The OLED device containing the organic molecules according to the present invention can also be manufactured by vacuum deposition method. When a layer contains one or more compounds, the weight percentage of one or more compounds is indicated in %. The total weight percentage value is 100%, so when no value is specified, the fraction of the compound is the same as the difference between the specified value and 100%.

[0293] Non-fully optimized OLEDs are characterized by measuring the electroluminescence spectrum using standard methods and the intensity- and current-dependent external quantum efficiency (%) calculated using the light and current detected by a photodiode. The lifetime of the OLED device is extracted from the change in luminance while operating at a constant current density. The LT50 value corresponds to the time when the measured luminance has decreased to 50% of the initial luminance, similarly LT80 corresponds to the point when the measured luminance has decreased to 80% of the initial luminance, and LT95 corresponds to the point when the measured luminance has decreased to 95% of the initial luminance.

[0294] Accelerated lifetime measurements are performed (e.g. by applying increased current densities), e.g. 500cd / m 2 In the present invention, the LT80 value is determined using the following formula:

[0295]

number

[0296] The value corresponds to the average of several pixels (typically 2-8) and the standard deviation across the pixels is provided.

[0297] Examples of Organic Molecules of the Invention JPEG2025505549000192.jpg89170

[0298] MS (LC-MS, APPI ion source): 897 m / z (retention time: 9.20 min).

[0299] Example 1 (0.001 mg / mL in toluene) has an emission maximum of 449 nm, a full width at half maximum (FWHM) of 41 nm, a CIEx coordinate of 0.16, and a CIEy coordinate of 0.13. The photoluminescence quantum yield (PLQY) is 53%.

[0300] The absorption maximum of Example 1 (0.01 mg / mL in toluene) is 438 nm, and the absorption coefficient at the absorption maximum is 88000 M -1 cm -1 It is.

Claims

1. An organic molecule comprising or consisting of chemical formula A: [Chemical formula A] where: M ＴＡＤＦ denotes the TADF moiety, L is a direct bond (single bond) or M ＴＡＤＦ and M ＢＮ and M ＴＡＤＦ and M ＢＮ and a divalent bridging unit connected to each other via a single bond, M ＢＮ indicates an emitter moiety containing a direct BN bond.

2. M ＢＮ represents an emitter moiety having a structure of the chemical formula BNE-1, [Chemical formula BNE-1] where: c and d are both integers, independently selected from 0 and 1; e and f are both integers selected from 0 and 1, where e and f are the same; g and h are both integers and are selected from 0 and 1, where g and h are the same; If d is 0, then e and f are both 1; if d is 1, then e and f are both 0; If c is 0, then g and h are both 1; if c is 1, then g and h are both 0; V １ is nitrogen (N) and CR ＢＮＥ－Ｖ is selected from V ２ is nitrogen (N) and CR ＢＮＥ－Ｉ is selected from X ３ is a direct bond, CR ＢＮＥ－３ R ＢＮＥ－４ , C=CR ＢＮＥ－３ R ＢＮＥ－４ , C═O, C═NR ＢＮＥ－３ , N.R. ＢＮＥ－３ , O, SiR ＢＮＥ－３ R ＢＮＥ－４ , S, S(O) and S(O) ２ is selected from the group consisting of Y ２ is a direct bond, CR ＢＮＥ－３’ R ＢＮＥ－４’ , C=CR ＢＮＥ－３’ R ＢＮＥ－４’ , C═O, C═NR ＢＮＥ－３’ , N.R. ＢＮＥ－３’ , O, SiR ＢＮＥ－３’ R ＢＮＥ－４’ , S, S(O) and S(O) ２ is selected from the group consisting of R ＢＮＥ－１ , R ＢＮＥ－２ , R ＢＮＥ－１’ , R ＢＮＥ－２’ , R ＢＮＥ－３ , R ＢＮＥ－４ , R ＢＮＥ－３’ , R ＢＮＥ－４’ , R ＢＮＥ－Ｉ , R ＢＮＥ－ＩＩ , R ＢＮＥ－ＩＩＩ , R ＢＮＥ－ＩＶ and R ＢＮＥ－Ｖ are each, independently of one another, selected from the group consisting of: BN emitter moiety M ＢＮ a single bond connecting the bridge unit L to the bridge unit L, hydrogen, deuterium, N(R ＢＮＥ－５ ) ２ , OR ＢＮＥ－５ , Si(R ＢＮＥ－５ ) ３ , B(OR ＢＮＥ－５ ) ２ , B(R ＢＮＥ－５ ) ２ , OSO ２ R ＢＮＥ－５ , C.F. ３ ,CN,F,Cl,Br,I, C １ -C ４０ Alkyl, This may optionally be one or more substituents R ＢＮＥ－５ is replaced by Here, one or more non-adjacent CH ２ The group is optionally R ＢＮＥ－５ C=CR ＢＮＥ－５ , C≡C, Si(R ＢＮＥ－５ ) ２ , Ge(R ＢＮＥ－５ ) ２ , Sn(R ＢＮＥ－５ ) ２ , C=O, C=S, C=Se, C=NR ＢＮＥ－５ , P(=O)(R ＢＮＥ－５ ), SO, SO ２ , N.R. ＢＮＥ－５ , O, S or CONR ＢＮＥ－５ is replaced by C １ -C ４０ Alkoxy, This may optionally be one or more substituents R ＢＮＥ－５ is replaced by Here, one or more non-adjacent CH ２ The group is optionally R ＢＮＥ－５ C=CR ＢＮＥ－５ , C≡C, Si(R ＢＮＥ－５ ) ２ , Ge(R ＢＮＥ－５ ) ２ , Sn(R ＢＮＥ－５ ) ２ , C=O, C=S, C=Se, C=NR ＢＮＥ－５ , P(=O)(R ＢＮＥ－５ ), SO, SO ２ , N.R. ＢＮＥ－５ , O, S or CONR ＢＮＥ－５ is replaced by C １ -C ４０ thioalkoxy, This may optionally be one or more substituents R ＢＮＥ－５ is replaced by Here, one or more non-adjacent CH ２ The group is optionally R ＢＮＥ－５ C=CR ＢＮＥ－５ , C≡C, Si(R ＢＮＥ－５ ) ２ , Ge(R ＢＮＥ－５ ) ２ , Sn(R ＢＮＥ－５ ) ２ , C=O, C=S, C=Se, C=NR ＢＮＥ－５ , P(=O)(R ＢＮＥ－５ ), SO, SO ２ , N.R. ＢＮＥ－５ , O, S or CONR ＢＮＥ－５ is replaced by C ２ -C ４０ alkenyl, This may optionally be one or more substituents R ＢＮＥ－５ is replaced by Here, one or more non-adjacent CH ２ The group is optionally R ＢＮＥ－５ C=CR ＢＮＥ－５ , C≡C, Si(R ＢＮＥ－５ ) ２ , Ge(R ＢＮＥ－５ ) ２ , Sn(R ＢＮＥ－５ ) ２ , C=O, C=S, C=Se, C=NR ＢＮＥ－５ , P(=O)(R ＢＮＥ－５ ), SO, SO ２ , N.R. ＢＮＥ－５ , O, S or CONR ＢＮＥ－５ is replaced by C ２ -C ４０ Alkynyl, This may optionally be one or more substituents R ＢＮＥ－５ is replaced by Here, one or more non-adjacent CH ２ The group is optionally R ＢＮＥ－５ C=CR ＢＮＥ－５ , C≡C, Si(R ＢＮＥ－５ ) ２ , Ge(R ＢＮＥ－５ ) ２ , Sn(R ＢＮＥ－５ ) ２ , C=O, C=S, C=Se, C=NR ＢＮＥ－５ , P(=O)(R ＢＮＥ－５ ), SO, SO ２ , N.R. ＢＮＥ－５ , O, S or CONR ＢＮＥ－５ is replaced by Optionally, one or more substituents R ＢＮＥ－５ C substituted with ６ -C ６０ aryl, and Optionally, one or more substituents R ＢＮＥ－５ C substituted with ２ -C ５７ heteroaryl, R ＢＮＥ－ｄ , R ＢＮＥ－ｄ’ and R ＢＮＥ－ｅ are each independently selected from the group consisting of: Hydrogen, deuterium, N(R ＢＮＥ－５ ) ２ , OR ＢＮＥ－５ , Si(R ＢＮＥ－５ ) ３ , B(OR ＢＮＥ－５ ) ２ , B(R ＢＮＥ－５ ) ２ , OSO ２ R ＢＮＥ－５ , C.F. ３ ,CN,F,Cl,Br,I, C １ -C ４０ Alkyl, This may optionally be one or more substituents R ＢＮＥ－ａ is replaced by Here, one or more non-adjacent CH ２ The group is optionally R ＢＮＥ－５ C=CR ＢＮＥ－５ , C≡C, Si(R ＢＮＥ－５ ) ２ , Ge(R ＢＮＥ－５ ) ２ , Sn(R ＢＮＥ－５ ) ２ , C=O, C=S, C=Se, C=NR ＢＮＥ－５ , P(=O)(R ＢＮＥ－５ ), SO, SO ２ , N.R. ＢＮＥ－５ , O, S or CONR ＢＮＥ－５ is replaced by C １ -C ４０ Alkoxy, This may optionally be one or more substituents R ＢＮＥ－ａ is replaced by Here, one or more non-adjacent CH ２ The group is optionally R ＢＮＥ－５ C=CR ＢＮＥ－５ , C≡C, Si(R ＢＮＥ－５ ) ２ , Ge(R ＢＮＥ－５ ) ２ , Sn(R ＢＮＥ－５ ) ２ , C=O, C=S, C=Se, C=NR ＢＮＥ－５ , P(=O)(R ＢＮＥ－５ ), SO, SO ２ , N.R. ＢＮＥ－５ , O, S or CONR ＢＮＥ－５ is replaced by C １ -C ４０ thioalkoxy, This may optionally be one or more substituents R ＢＮＥ－ａ is replaced by Here, one or more non-adjacent CH ２ The group is optionally R ＢＮＥ－５ C=CR ＢＮＥ－５ , C≡C, Si(R ＢＮＥ－５ ) ２ , Ge(R ＢＮＥ－５ ) ２ , Sn(R ＢＮＥ－５ ) ２ , C=O, C=S, C=Se, C=NR ＢＮＥ－５ , P(=O)(R ＢＮＥ－５ ), SO, SO ２ , N.R. ＢＮＥ－５ , O, S or CONR ＢＮＥ－５ is replaced by C ２ -C ４０ alkenyl, This may optionally be one or more substituents R ＢＮＥ－ａ is replaced by Here, one or more non-adjacent CH ２ The group is optionally R ＢＮＥ－５ C=CR ＢＮＥ－５ , C≡C, Si(R ＢＮＥ－５ ) ２ , Ge(R ＢＮＥ－５ ) ２ , Sn(R ＢＮＥ－５ ) ２ , C=O, C=S, C=Se, C=NR ＢＮＥ－５ , P(=O)(R ＢＮＥ－５ ), SO, SO ２ , N.R. ＢＮＥ－５ , O, S or CONR ＢＮＥ－５ is replaced by C ２ -C ４０ Alkynyl, This may optionally be one or more substituents R ＢＮＥ－ａ is replaced by Here, one or more non-adjacent CH ２ The group is optionally R ＢＮＥ－５ C=CR ＢＮＥ－５ , C≡C, Si(R ＢＮＥ－５ ) ２ , Ge(R ＢＮＥ－５ ) ２ , Sn(R ＢＮＥ－５ ) ２ , C=O, C=S, C=Se, C=NR ＢＮＥ－５ , P(=O)(R ＢＮＥ－５ ), SO, SO ２ , N.R. ＢＮＥ－５ , O, S or CONR ＢＮＥ－５ is replaced by Optionally, one or more substituents R ＢＮＥ－ａ C substituted with ６ -C ６０ aryl, and Optionally, one or more substituents R ＢＮＥ－ａ C substituted with ２ -C ５７ heteroaryl, R ＢＮＥ－ａ are, in each occurrence, independently selected from the group consisting of: Hydrogen, deuterium, N(R ＢＮＥ－５ ) ２ , OR ＢＮＥ－５ , Si(R ＢＮＥ－５ ) ３ , B(OR ＢＮＥ－５ ) ２ , B(R ＢＮＥ－５ ) ２ , OSO ２ R ＢＮＥ－５ , C.F. ３ ,CN,F,Cl,Br,I, C １ -C ４０ Alkyl, This may optionally be one or more substituents R ＢＮＥ－５ is replaced by Here, one or more non-adjacent CH ２ The group is optionally R ＢＮＥ－５ C=CR ＢＮＥ－５ , C≡C, Si(R ＢＮＥ－５ ) ２ , Ge(R ＢＮＥ－５ ) ２ , Sn(R ＢＮＥ－５ ) ２ , C=O, C=S, C=Se, C=NR ＢＮＥ－５ , P(=O)(R ＢＮＥ－５ ), SO, SO ２ , N.R. ＢＮＥ－５ , O, S or CONR ＢＮＥ－５ is replaced by C １ -C ４０ Alkoxy, This may optionally be one or more substituents R ＢＮＥ－５ is replaced by Here, one or more non-adjacent CH ２ The group is optionally R ＢＮＥ－５ C=CR ＢＮＥ－５ , C≡C, Si(R ＢＮＥ－５ ) ２ , Ge(R ＢＮＥ－５ ) ２ , Sn(R ＢＮＥ－５ ) ２ , C=O, C=S, C=Se, C=NR ＢＮＥ－５ , P(=O)(R ＢＮＥ－５ ), SO, SO ２ , N.R. ＢＮＥ－５ , O, S or CONR ＢＮＥ－５ is replaced by C １ -C ４０ thioalkoxy, This may optionally be one or more substituents R ＢＮＥ－５ is replaced by Here, one or more non-adjacent CH ２ The group is optionally R ＢＮＥ－５ C=CR ＢＮＥ－５ , C≡C, Si(R ＢＮＥ－５ ) ２ , Ge(R ＢＮＥ－５ ) ２ , Sn(R ＢＮＥ－５ ) ２ , C=O, C=S, C=Se, C=NR ＢＮＥ－５ , P(=O)(R ＢＮＥ－５ ), SO, SO ２ , N.R. ＢＮＥ－５ , O, S or CONR ＢＮＥ－５ is replaced by C ２ -C ４０ alkenyl, This may optionally be one or more substituents R ＢＮＥ－５ is replaced by Here, one or more non-adjacent CH ２ The group is optionally R ＢＮＥ－５ C=CR ＢＮＥ－５ , C≡C, Si(R ＢＮＥ－５ ) ２ , Ge(R ＢＮＥ－５ ) ２ , Sn(R ＢＮＥ－５ ) ２ , C=O, C=S, C=Se, C=NR ＢＮＥ－５ , P(=O)(R ＢＮＥ－５ ), SO, SO ２ , N.R. ＢＮＥ－５ , O, S or CONR ＢＮＥ－５ is replaced by C ２ -C ４０ Alkynyl, This may optionally be one or more substituents R ＢＮＥ－５ is replaced by Here, one or more non-adjacent CH ２ The group is optionally R ＢＮＥ－５ C=CR ＢＮＥ－５ , C≡C, Si(R ＢＮＥ－５ ) ２ , Ge(R ＢＮＥ－５ ) ２ , Sn(R ＢＮＥ－５ ) ２ , C=O, C=S, C=Se, C=NR ＢＮＥ－５ , P(=O)(R ＢＮＥ－５ ), SO, SO ２ , N.R. ＢＮＥ－５ , O, S or CONR ＢＮＥ－５ is replaced by Optionally, one or more substituents R ＢＮＥ－５ C substituted with ６ -C ６０ aryl, and Optionally, one or more substituents R ＢＮＥ－５ C substituted with ２ -C ５７ heteroaryl, R ＢＮＥ－５ are, in each occurrence, independently selected from the group consisting of: Hydrogen, deuterium, N(R ＢＮＥ－６ ) ２ , OR ＢＮＥ－６ , Si(R ＢＮＥ－６ ) ３ , B(OR ＢＮＥ－６ ) ２ , B(R ＢＮＥ－６ ) ２ , OSO ２ R ＢＮＥ－６ , C.F. ３ ,CN,F,Cl,Br,I, C １ -C ４０ Alkyl, This may optionally be one or more substituents R ＢＮＥ－６ is replaced by Here, one or more non-adjacent CH ２ The group is optionally R ＢＮＥ－６ C=CR ＢＮＥ－６ , C≡C, Si(R ＢＮＥ－６ ) ２ , Ge(R ＢＮＥ－６ ) ２ , Sn(R ＢＮＥ－６ ) ２ , C=O, C=S, C=Se, C=NR ＢＮＥ－６ , P(=O)(R ＢＮＥ－６ ), SO, SO ２ , N.R. ＢＮＥ－６ , O, S or CONR ＢＮＥ－６ is replaced by C １ -C ４０ Alkoxy, This may optionally be one or more substituents R ＢＮＥ－６ is replaced by Here, one or more non-adjacent CH ２ The group is optionally R ＢＮＥ－６ C=CR ＢＮＥ－６ , C≡C, Si(R ＢＮＥ－６ ) ２ , Ge(R ＢＮＥ－６ ) ２ , Sn(R ＢＮＥ－６ ) ２ , C=O, C=S, C=Se, C=NR ＢＮＥ－６ , P(=O)(R ＢＮＥ－６ ), SO, SO ２ , N.R. ＢＮＥ－６ , O, S or CONR ＢＮＥ－６ is replaced by C １ -C ４０ thioalkoxy, This may optionally be one or more substituents R ＢＮＥ－６ is replaced by Here, one or more non-adjacent CH ２ The group is optionally R ＢＮＥ－６ C=CR ＢＮＥ－６ , C≡C, Si(R ＢＮＥ－６ ) ２ , Ge(R ＢＮＥ－６ ) ２ , Sn(R ＢＮＥ－６ ) ２ , C=O, C=S, C=Se, C=NR ＢＮＥ－６ , P(=O)(R ＢＮＥ－６ ), SO, SO ２ , N.R. ＢＮＥ－６ , O, S or CONR ＢＮＥ－６ is replaced by C ２ -C ４０ alkenyl, This may optionally be one or more substituents R ＢＮＥ－６ is replaced by Here, one or more non-adjacent CH ２ The group is optionally R ＢＮＥ－６ C=CR ＢＮＥ－６ , C≡C, Si(R ＢＮＥ－６ ) ２ , Ge(R ＢＮＥ－６ ) ２ , Sn(R ＢＮＥ－６ ) ２ , C=O, C=S, C=Se, C=NR ＢＮＥ－６ , P(=O)(R ＢＮＥ－６ ), SO, SO ２ , N.R. ＢＮＥ－６ , O, S or CONR ＢＮＥ－６ is replaced by C ２ -C ４０ Alkynyl, This may optionally be one or more substituents R ＢＮＥ－６ is replaced by Here, one or more non-adjacent CH ２ The group is optionally R ＢＮＥ－６ C=CR ＢＮＥ－６ , C≡C, Si(R ＢＮＥ－６ ) ２ , Ge(R ＢＮＥ－６ ) ２ , Sn(R ＢＮＥ－６ ) ２ , C=O, C=S, C=Se, C=NR ＢＮＥ－６ , P(=O)(R ＢＮＥ－６ ), SO, SO ２ , N.R. ＢＮＥ－６ , O, S or CONR ＢＮＥ－６ is replaced by Optionally, one or more substituents R ＢＮＥ－６ C substituted with ６ -C ６０ aryl, and Optionally, one or more substituents R ＢＮＥ－６ C substituted with ２ -C ５７ heteroaryl, R ＢＮＥ－６ are, in each occurrence, independently selected from the group consisting of: Hydrogen, deuterium, OPh, CF ３ ,C.N.,F. C １ -C ５ Alkyl, wherein optionally one or more hydrogen atoms are independently selected from deuterium, CN, CF ３ is substituted with Ph or F, C １ -C ５ Alkoxy, wherein optionally one or more hydrogen atoms are independently selected from deuterium, CN, CF ３ or substituted by F, C １ -C ５ thioalkoxy, wherein optionally one or more hydrogen atoms are independently selected from deuterium, CN, CF ３ or substituted by F, C ２ -C ５ alkenyl, wherein optionally one or more hydrogen atoms are independently selected from deuterium, CN, CF ３ or substituted by F, C ２ -C ５ Alkynyl, wherein optionally one or more hydrogen atoms are independently selected from deuterium, CN, CF ３ or substituted by F, Optionally, one or more C １ -C ５ C substituted with alkyl substituents ６ -C １８ aryl, Optionally, one or more C １ -C ５ C substituted with alkyl substituents ２ -C １７ heteroaryl, N (C ６ -C １８ aryl) ２ , N (C ２ -C １７ Heteroaryl) ２ , and N (C ２ -C １７ Heteroaryl) (C ６ -C １８ aryl), Here, R ＢＮＥ－ＩＩＩ and R ＢＮＥ－ｅ selectively bonds to form a direct single bond, where two or more substituents R ＢＮＥ－ａ , R ＢＮＥ－ｄ , R ＢＮＥ－ｄ’ , R ＢＮＥ－ｅ , R ＢＮＥ－３’ , R ＢＮＥ－４’ and R ＢＮＥ－５ optionally form monocyclic or polycyclic, aliphatic or aromatic or heteroaromatic, carbocyclic or heterocyclic ring systems with each other, where two or more substituents R ＢＮＥ－１ , R ＢＮＥ－２ , R ＢＮＥ－１’ , R ＢＮＥ－２’ , R ＢＮＥ－３ , R ＢＮＥ－４ , R ＢＮＥ－５ , R ＢＮＥ－Ｉ , R ＢＮＥ－ＩＩ , R ＢＮＥ－ＩＩＩ , R ＢＮＥ－ＩＶ and R ＢＮＥ－Ｖ optionally form monocyclic or polycyclic, aliphatic or aromatic or heteroaromatic, carbocyclic or heterocyclic ring systems with each other, wherein optionally two or more, preferably two, structures of formula BNE-1 are joined to each other, preferably fused to each other by sharing at least one, more preferably exactly one bond; Wherein, optionally two or more, preferably two, structures of formula BNE-1 are present in the organic molecule, and they share at least one, preferably exactly one, aromatic or heteroaromatic ring, which is preferably any one of rings a, b, and c′ of formula BNE-1, but R ＢＮＥ－１ , R ＢＮＥ－２ , R ＢＮＥ－１’ , R ＢＮＥ－２’ , R ＢＮＥ－３ , R ＢＮＥ－４ , R ＢＮＥ－３’ , R ＢＮＥ－４’ , R ＢＮＥ－５ , R ＢＮＥ－６ , R ＢＮＥ－Ｉ , R ＢＮＥ－ＩＩ , R ＢＮＥ－ＩＩＩ , R ＢＮＥ－ＩＶ , R ＢＮＥ－Ｖ , R ＢＮＥ－ａ , R ＢＮＥ－ｅ , R ＢＮＥ－ｄ and R ＢＮＥ－ｄ’ or any aromatic or heteroaromatic ring formed by two or more substituents as described above, wherein the shared ring may constitute the same or different moieties of two or more structures of formula BNE-1 that share the ring (i.e., the shared ring may be, for example, ring c' of two structures of formula BNE-1 selectively contained in the organic molecule, or the shared ring may be, for example, ring b of one structure of formula BNE-1 and ring c' of another structure selectively contained in the organic molecule), where, optionally, any R ＢＮＥ－１ , R ＢＮＥ－２ , R ＢＮＥ－１’ , R ＢＮＥ－２’ , R ＢＮＥ－３ , R ＢＮＥ－４ , R ＢＮＥ－５ , R ＢＮＥ－３’ , R ＢＮＥ－４’ , R ＢＮＥ－６ , R ＢＮＥ－Ｉ , R ＢＮＥ－ＩＩ , R ＢＮＥ－ＩＩＩ , R ＢＮＥ－ＩＶ , R ＢＮＥ－Ｖ , R ＢＮＥ－ａ , R ＢＮＥ－ｅ , R ＢＮＥ－ｄ or R ＢＮＥ－ｄ’ is replaced by a bond to a further chemical entity of formula BNE-1, and / or any R ＢＮＥ－１ , R ＢＮＥ－２ , R ＢＮＥ－１’ , R ＢＮＥ－２’ , R ＢＮＥ－３ , R ＢＮＥ－４ , R ＢＮＥ－５ , R ＢＮＥ－３’ , R ＢＮＥ－４’ , R ＢＮＥ－６ , R ＢＮＥ－Ｉ , R ＢＮＥ－ＩＩ , R ＢＮＥ－ＩＩＩ , R ＢＮＥ－ＩＶ , R ＢＮＥ－Ｖ , R ＢＮＥ－ａ , R ＢＮＥ－ｅ , R ＢＮＥ－ｄ or R ＢＮＥ－ｄ’ wherein at least one hydrogen atom of is replaced by a bond to a further chemical entity of formula BNE-1; where exactly one substituent is the BN emitter moiety M ＢＮ to the bridging unit L.

3. V １ is CR ＢＮＥ－Ｖ and V ２ is CR ＢＮＥ－Ｉ The organic molecule of claim 2, wherein

4. c and d are each 1, e, f, g and h are each 0, and Y ２ is a direct bond, and X ３ is NR ＢＮＥ－３ The organic molecule of claim 2, wherein

5. R ＢＮＥ－１ , R ＢＮＥ－２ , R ＢＮＥ－１’ , R ＢＮＥ－２’ , R ＢＮＥ－３ , R ＢＮＥ－４ , R ＢＮＥ－３’ , R ＢＮＥ－４’ , R ＢＮＥ－Ｉ , R ＢＮＥ－ＩＩ , R ＢＮＥ－ＩＩＩ , R ＢＮＥ－ＩＶ , R ＢＮＥ－Ｖ , R ＢＮＥ－ｄ , R ＢＮＥ－ｄ’ , R ＢＮＥ－ｅ , R ＢＮＥ－ａ 3. The organic molecule of claim 2, each of which, in each occurrence, independently of one another, is selected from the group consisting of: BN bond M ＢＮ a single bond linking site connecting the organic molecule comprising the following to the bridging unit L; hydrogen, deuterium, Me, ｉ Pr、 ｔ This, C.N., CF ３ 、 Me, ｉ Pr, ｔ Bu, C.N., C.F. ３ Ph optionally substituted with one or more substituents independently selected from the group consisting of Me, ｉ Pr, ｔ Bu, C.N., C.F. ３ pyridinyl optionally substituted with one or more substituents independently selected from the group consisting of: Me, ｉ Pr, ｔ Bu, C.N., C.F. ３ pyrimidinyl optionally substituted with one or more substituents independently selected from the group consisting of: Me, ｉ Pr, ｔ Bu, C.N., C.F. ３ and Ph; Me, ｉ Pr, ｔ Bu, C.N., C.F. ３ and Ph, and N(Ph) ２ 、 Here, R ＢＮＥ－１ , R ＢＮＥ－２ , R ＢＮＥ－３ , R ＢＮＥ－４ , R ＢＮＥ－Ｉ , R ＢＮＥ－ＩＩ , R ＢＮＥ－ＩＩＩ , R ＢＮＥ－ＩＶ , R ＢＮＥ－Ｖ and wherein exactly one or more substituents selected from the group consisting of: ＢＮ represents a single bond binding site linking the organic molecule comprising:

6. R ＢＮＥ－ＩＶ , R ＢＮＥ－２ , or R ＢＮＥ－Ｖ is the direct BN bonding moiety M ＢＮ 3. The organic molecule of claim 2, wherein the linking site of the organic molecule to the bridging unit L comprises:

7. 10. The organic molecule of claim 1, wherein L comprises, or alternatively consists of, one or more sequentially linked divalent moieties selected from the group consisting of: direct binding, Optionally, one or more substituents R Ｌ C substituted with ６ -C ６０ Arylene, Optionally, one or more substituents R Ｌ C substituted with ３ -C ５７ heteroarylene, R Ｌ Si(R Ｌ ２ )、 Si(R Ｌ ２ )R Ｌ 、 Si(R Ｌ ２ ), and R Ｌ Si(R Ｌ ２ )R Ｌ 、 Here, R Ｌ are, in each occurrence, independently of one another, selected from the group consisting of: -C １ -C ４ Alkyl, C １ -C ４ Haloalkyl, CN, CF ３ Ph optionally substituted with one or more substituents independently selected from the group consisting of -C １ -C ４ Alkyl, C １ -C ４ Haloalkyl, CN, CF ３ or Ph, -C １ -C ４ Alkyl, C １ -C ４ Haloalkyl, CN, CF ３ and Ph, -C １ -C ４ Alkyl, C １ -C ４ Haloalkyl, CN, CF ３ and Ph, -Me, C １ -C ４ Alkyl, C １ -C ４ Haloalkyl, CN, CF ３ and Ph, optionally substituted with one or more substituents independently selected from the group consisting of: -N(Ph) ２ .

8. 2. The organic molecule of claim 1, wherein L is selected from the group consisting of: Optionally, one or more substituents R Ｌ C substituted with ６ -C ６０ Arylene, Optionally, one or more substituents R Ｌ C substituted with ３ -C ５７ heteroarylene, Optionally, one or more substituents R Ｌ C substituted with ６ -C ６０ Arylene-C ３ -C ５７ heteroarylene, Optionally, one or more substituents R Ｌ C substituted with ３ -C ５７ Heteroarylene-C ６ -C ６０ Arylene, Optionally, one or more substituents R Ｌ C substituted with ６ -C ６０ Arylene-C ６ -C ６０ Arylene, Optionally, one or more substituents R Ｌ C substituted with ３ -C ５７ Heteroarylene-C ３ -C ５７ heteroarylene, Optionally, one or more substituents R Ｌ C substituted with ６ -C ６０ Arylene-C ３ -C ５７ Heteroarylene-C ６ -C ６０ Arylene, Optionally, one or more substituents R Ｌ C substituted with ３ -C ５７ Heteroarylene-C ６ -C ６０ Arylene-C ３ -C ５７ heteroarylene, Optionally, one or more substituents R Ｌ C substituted with ６ -C ６０ Arylene-C ６ -C ６０ Arylene-C ６ -C ６０ Arylene, Optionally, one or more substituents R Ｌ C substituted with ３ -C ５７ Heteroarylene-C ３ -C ５７ Heteroarylene-C ３ -C ５７ heteroarylene, R Ｌ Si(R Ｌ ２ )、 Si(R Ｌ ２ )R Ｌ 、 Si(R Ｌ ２ ), and R Ｌ Si(R Ｌ ２ )R Ｌ 、 Here, R Ｌ are, in each occurrence, independently of one another, selected from the group consisting of: -Me, ｉ Pr, ｔ Bu, C.N., C.F. ３ Ph optionally substituted with one or more substituents independently selected from the group consisting of -Me、 ｉ Pr、 ｔ Bu、CN、CF ３ 、 -Me, ｉ Pr, ｔ Bu, C.N., C.F. ３ and Ph, -Me, ｉ Pr, ｔ Bu, C.N., C.F. ３ and Ph, -Me, ｉ Pr, ｔ Bu, C.N., C.F. ３ and Ph, -Me, ｉ Pr, ｔ Bu, C.N., C.F. ３ and Ph, optionally substituted with one or more substituents independently selected from the group consisting of: -N(Ph) ２ .

9. The organic molecule of claim 1, wherein L is selected from the group consisting of structures of formulas L1 to L43: where $ is the sum of L and M ＴＡＤＦ and a single bond connecting the two, § is L and M ＢＮ and a single bond connecting the two, R Ｌ２ is, in each occurrence, independently H, deuterium, Me, ｉ Pr, ｔ It is selected from the group consisting of Bu, Ph and pyridyl.

10. M ＴＡＤＦ The organic molecule of claim 1 , wherein the organic molecule comprises: a first chemical moiety having the structure of Formula I, and [Chemical formula I] one second chemical moiety having the structure of formula II, [Chemical formula II] wherein the first chemical moiety is linked to the second chemical moiety through a single bond; T is selected from the group consisting of: Hydrogen (H), deuterium (D), R ＴＡＤＦ１ and a single bond binding site linking the first chemical moiety to the second chemical moiety; W is selected from the group consisting of: a single bond binding site linking the first chemical moiety to the second chemical moiety; TADF Moyeti M ＴＡＤＦ a single bond linking the linker unit L to the bridging unit L; H, D and R ＴＡＤＦ１ , Y is H, D, R ＴＡＤＦ１ , and TADF Moiety M ＴＡＤＦ is selected from the group consisting of a single bond linking the bridging unit L to the Acc １ is selected from the group consisting of: Optionally, one or more substituents R ６ triazinyl substituted with, C.N., CF ３ 、 C.N., C.F. ３ Ph optionally substituted with one or more substituents selected from the group consisting of: Optionally, one or more substituents R ６ pyridyl substituted with, and Optionally, one or more substituents R ６ pyrimidyl substituted with # indicates a single bond attachment site linking the second chemical moiety to the first chemical moiety; R Ｄｉ is selected from the group consisting of: TADF Moyeti M ＴＡＤＦ a single bond linking the bond to the bridging unit L, H, D, Me, ｉ Pr, ｔ Bu, SiPh ３ , C.N., C.F. ３ , Me, ｉ Pr, ｔ Ph optionally substituted with one or more substituents independently selected from the group consisting of Bu and Ph; a third chemical moiety having a structure of formula Q; [Chemical formula Q] Q １ is N and C-R ＱＩ is selected from the group consisting of Q ２ is N and C-R ＱＩＩＩ is selected from the group consisting of Q ３ is N and C-R ＱＩＶ is selected from the group consisting of Q ４ is N and C-R ＱＶ is selected from the group consisting of $ Ｑ represents a single bond attachment site linking a third chemical moiety to the first chemical moiety; R ＱＩ is selected from the group consisting of: H. D. C.N., CF ３ 、 SiPh ３ 、 F. Ph, and a fourth chemical moiety comprising, or alternatively consisting of, the structure of formula IIQ; [Chemical formula IIQ] § Ｑ represents a single bond attachment site linking a fourth chemical moiety to a third chemical moiety; R ＱＩＩ is selected from the group consisting of: TADF Moyeti M ＴＡＤＦ a single bond linking the linker unit L to the bridging unit L; H, D, Me, ｉ Pr, ｔ Bu, SiPh ３ , and Me, ｉ Pr, ｔ Ph optionally substituted with one or more substituents independently selected from the group consisting of Bu and Ph; R ＱＩＩＩ is selected from the group consisting of: TADF Moyeti M ＴＡＤＦ a single bond linking the linker unit L to the bridging unit L; H. D. C.N., CF ３ 、 SiPh ３ 、 F. Optionally, one or more substituents R ６ Ph substituted with, Optionally, one or more substituents R ６ triazinyl substituted with, Optionally, one or more substituents R ６ pyridyl substituted with, and Optionally, one or more substituents R ６ pyrimidyl substituted with R ＱＩＶ is selected from the group consisting of: TADF Moyeti M ＴＡＤＦ a single bond linking the linker unit L to the bridging unit L; H. D. C.N., CF ３ 、 SiPh ３ 、 F. Optionally, one or more substituents R ６ Ph substituted with, Optionally, one or more substituents R ６ triazinyl substituted with, Optionally, one or more substituents R ６ pyridyl substituted with, and Optionally, one or more substituents R ６ pyrimidyl substituted with R ＱＶ is selected from the group consisting of: TADF Moyeti M ＴＡＤＦ a single bond linking the linker unit L to the bridging unit L; H, D, Me, ｉ Pr, ｔ Bu, SiPh ３ , and Me, ｉ Pr, ｔ Ph optionally substituted with one or more substituents independently selected from the group consisting of Bu and Ph; Here, one R Ｄｉ denotes a third chemical moiety that comprises or consists of a structure of formula Q: Other R Ｄｉ is selected from the group consisting of: H、D、Me、 ｉ Pr、 ｔ Bu、SiPh ３ 、 Me, ｉ Pr, ｔ Ph optionally substituted with one or more substituents independently selected from the group consisting of Bu and Ph; TADF Moyeti M ＴＡＤＦ a single bond linking the linker unit L to the bridging unit L; R ＴＡＤＦ１ is selected from the group consisting of: Me, ｉ Pr, ｔ Bu, SiPh ３ , and Me, ｉ Pr, ｔ Ph optionally substituted with one or more substituents independently selected from the group consisting of Bu and Ph; R ａ are, in each occurrence, independently selected from the group consisting of: TADF Moyeti M ＴＡＤＦ a single bond linking the linker unit L to the bridging unit L; H. D. N(R ５ ) ２ 、 OR ５ 、 Si(R ５ ) ３ 、 B(OR ５ ) ２ 、 OSO ２ R ５ 、 CF ３ 、 C.N., F. Br, I, C １ -C ４０ Alkyl, This may optionally be one or more substituents R ５ is replaced by Here, one or more non-adjacent CH ２ The group is optionally R ５ C=CR ５ , C≡C, Si(R ５ ) ２ , Ge(R ５ ) ２ , Sn(R ５ ) ２ , C=O, C=S, C=Se, C=NR ５ , P(=O)(R ５ ), SO, SO ２ , N.R. ５ , O, S or CONR ５ is replaced by C １ -C ４０ Alkoxy, This may optionally be one or more substituents R ５ is replaced by Here, one or more non-adjacent CH ２ The group is optionally R ５ C=CR ５ , C≡C, Si(R ５ ) ２ , Ge(R ５ ) ２ , Sn(R ５ ) ２ , C=O, C=S, C=Se, C=NR ５ , P(=O)(R ５ ), SO, SO ２ , N.R. ５ , O, S or CONR ５ is replaced by C １ -C ４０ thioalkoxy, This may optionally be one or more substituents R ５ is replaced by Here, one or more non-adjacent CH ２ The group is optionally R ５ C=CR ５ , C≡C, Si(R ５ ) ２ , Ge(R ５ ) ２ , Sn(R ５ ) ２ , C=O, C=S, C=Se, C=NR ５ , P(=O)(R ５ ), SO, SO ２ , N.R. ５ , O, S or CONR ５ is replaced by C ２ -C ４０ alkenyl, This may optionally be one or more substituents R ５ is replaced by Here, one or more non-adjacent CH ２ The group is optionally R ５ C=CR ５ , C≡C, Si(R ５ ) ２ , Ge(R ５ ) ２ , Sn(R ５ ) ２ , C=O, C=S, C=Se, C=NR ５ , P(=O)(R ５ ), SO, SO ２ , N.R. ５ , O, S or CONR ５ is replaced by C ２ -C ４０ Alkynyl, This may optionally be one or more substituents R ５ is replaced by Here, one or more non-adjacent CH ２ The group is optionally R ５ C=CR ５ , C≡C, Si(R ５ ) ２ , Ge(R ５ ) ２ , Sn(R ５ ) ２ , C=O, C=S, C=Se, C=NR ５ , P(=O)(R ５ ), SO, SO ２ , N.R. ５ , O, S or CONR ５ is replaced by Optionally, one or more substituents R ５ C substituted with ６ -C ６０ aryl, and Optionally, one or more substituents R ５ C substituted with ３ -C ５７ heteroaryl, R ５ are, in each occurrence, independently selected from the group consisting of: H. D. N(R ６ ) ２ 、 OR ６ 、 Si(R ６ ) ３ 、 B(OR ６ ) ２ 、 OSO ２ R ６ 、 CF ３ 、 C.N., F. Br, I, C １ -C ４０ Alkyl, This may optionally be one or more substituents R ６ is replaced by Here, one or more non-adjacent CH ２ The group is optionally R ６ C=CR ６ , C≡C, Si(R ６ ) ２ , Ge(R ６ ) ２ , Sn(R ６ ) ２ , C=O, C=S, C=Se, C=NR ６ , P(=O)(R ６ ), SO, SO ２ , N.R. ６ , O, S or CONR ６ is replaced by C １ -C ４０ Alkoxy, This may optionally be one or more substituents R ６ is replaced by Here, one or more non-adjacent CH ２ The group is optionally R ６ C=CR ６ , C≡C, Si(R ６ ) ２ , Ge(R ６ ) ２ , Sn(R ６ ) ２ , C=O, C=S, C=Se, C=NR ６ , P(=O)(R ６ ), SO, SO ２ , N.R. ６ , O, S or CONR ６ is replaced by C １ -C ４０ thioalkoxy, This may optionally be one or more substituents R ６ is replaced by Here, one or more non-adjacent CH ２ The group is optionally R ６ C=CR ６ , C≡C, Si(R ６ ) ２ , Ge(R ６ ) ２ , Sn(R ６ ) ２ , C=O, C=S, C=Se, C=NR ６ , P(=O)(R ６ ), SO, SO ２ , N.R. ６ , O, S or CONR ６ is replaced by C ２ -C ４０ alkenyl, This may optionally be one or more substituents R ６ is replaced by Here, one or more non-adjacent CH ２ The group is optionally R ６ C=CR ６ , C≡C, Si(R ６ ) ２ , Ge(R ６ ) ２ , Sn(R ６ ) ２ , C=O, C=S, C=Se, C=NR ６ , P(=O)(R ６ ), SO, SO ２ , N.R. ６ , O, S or CONR ６ is replaced by C ２ -C ４０ Alkynyl, This may optionally be one or more substituents R ６ is replaced by Here, one or more non-adjacent CH ２ The group is optionally R ６ C=CR ６ , C≡C, Si(R ６ ) ２ , Ge(R ６ ) ２ , Sn(R ６ ) ２ , C=O, C=S, C=Se, C=NR ６ , P(=O)(R ６ ), SO, SO ２ , N.R. ６ , O, S or CONR ６ is replaced by Optionally, one or more substituents R ６ C substituted with ６ -C ６０ aryl, and Optionally, one or more substituents R ６ C substituted with ３ -C ５７ heteroaryl, R ６ are, in each occurrence, independently selected from the group consisting of: Optionally, one or more C １ -C ５ C substituted with alkyl substituents ６ -C １８ aryl, hydrogen, deuterium, OPh, CF ３ 、 C.N., F. C １ -C ５ Alkyl, wherein optionally one or more hydrogen atoms are independently selected from deuterium, CN, CF ３ or substituted by F, C １ -C ５ Alkoxy, wherein optionally one or more hydrogen atoms are independently selected from deuterium, CN, CF ３ or substituted by F, C １ -C ５ thioalkoxy, wherein optionally one or more hydrogen atoms are independently selected from deuterium, CN, CF ３ or substituted by F, C ２ -C ５ alkenyl, wherein optionally one or more hydrogen atoms are independently selected from deuterium, CN, CF ３ or substituted by F, C ２ -C ５ Alkynyl, wherein optionally one or more hydrogen atoms are independently selected from deuterium, CN, CF ３ or substituted by F, Optionally, one or more C １ -C ５ C substituted with alkyl substituents ３ -C １７ heteroaryl, N (C ６ -C １８ aryl) (C ６ -C １８ aryl), N (C ３ -C １７ Heteroaryl) (C ３ -C １７ heteroaryl), and N (C ３ -C １７ Heteroaryl) (C ６ -C １８ aryl), where two or more substituents R ａ and / or R ５ are, independently of one another, one or more substituents R ａ or R ５ with the selective formation of monocyclic or polycyclic, (hetero)aliphatic, (hetero)aromatic and / or benzo-fused ring systems, R ｆ are, in each occurrence, independently selected from the group consisting of: H. D. N(R ５ｆ ) ２ 、 OR ５ｆ 、 Si(R ５ｆ ) ３ 、 B(OR ５ｆ ) ２ 、 OSO ２ R ５ｆ 、 CF ３ 、 C.N., F. Br, I, C １ -C ４０ Alkyl, This may optionally be one or more substituents R ５ｆ is replaced by Here, one or more non-adjacent CH ２ The group is optionally R ５ｆ C=CR ５ｆ , C≡C, Si(R ５ｆ ) ２ , Ge(R ５ｆ ) ２ , Sn(R ５ｆ ) ２ , C=O, C=S, C=Se, C=NR ５ｆ , P(=O)(R ５ｆ ), SO, SO ２ , N.R. ５ｆ , O, S or CONR ５ｆ is replaced by C １ -C ４０ Alkoxy, This may optionally be one or more substituents R ５ｆ is replaced by Here, one or more non-adjacent CH ２ The group is optionally R ５ｆ C=CR ５ｆ , C≡C, Si(R ５ｆ ) ２ , Ge(R ５ｆ ) ２ , Sn(R ５ｆ ) ２ , C=O, C=S, C=Se, C=NR ５ｆ , P(=O)(R ５ｆ ), SO, SO ２ , N.R. ５ｆ , O, S or CONR ５ｆ is replaced by C １ -C ４０ thioalkoxy, This may optionally be one or more substituents R ５ｆ is replaced by Here, one or more non-adjacent CH ２ The group is optionally R ５ｆ C=CR ５ｆ , C≡C, Si(R ５ｆ ) ２ , Ge(R ５ｆ ) ２ , Sn(R ５ｆ ) ２ , C=O, C=S, C=Se, C=NR ５ｆ , P(=O)(R ５ｆ ), SO, SO ２ , N.R. ５ｆ , O, S or CONR ５ｆ is replaced by C ２ -C ４０ alkenyl, This may optionally be one or more substituents R ５ｆ is replaced by Here, one or more non-adjacent CH ２ The group is optionally R ５ｆ C=CR ５ｆ , C≡C, Si(R ５ｆ ) ２ , Ge(R ５ｆ ) ２ , Sn(R ５ｆ ) ２ , C=O, C=S, C=Se, C=NR ５ｆ , P(=O)(R ５ｆ ), SO, SO ２ , N.R. ５ｆ , O, S or CONR ５ｆ is replaced by C ２ -C ４０ Alkynyl, This may optionally be one or more substituents R ５ｆ is replaced by Here, one or more non-adjacent CH ２ The group is optionally R ５ｆ C=CR ５ｆ , C≡C, Si(R ５ｆ ) ２ , Ge(R ５ｆ ) ２ , Sn(R ５ｆ ) ２ , C=O, C=S, C=Se, C=NR ５ｆ , P(=O)(R ５ｆ ), SO, SO ２ , N.R. ５ｆ , O, S or CONR ５ｆ is replaced by Optionally, one or more substituents R ５ｆ C substituted with ６ -C ６０ aryl, and Optionally, one or more substituents R ５ｆ C substituted with ３ -C ５７ heteroaryl, R ５ｆ are, in each occurrence, independently selected from the group consisting of: H. D. N(R ６ｆ ) ２ 、 OR ６ｆ 、 Si(R ６ｆ ) ３ 、 B(OR ６ｆ ) ２ 、 OSO ２ R ６ｆ 、 CF ３ 、 C.N., F. Br, I, C １ -C ４０ Alkyl, This may optionally be one or more substituents R ６ｆ is replaced by Here, one or more non-adjacent CH ２ The group is optionally R ６ｆ C=CR ６ｆ , C≡C, Si(R ６ｆ ) ２ , Ge(R ６ｆ ) ２ , Sn(R ６ｆ ) ２ , C=O, C=S, C=Se, C=NR ６ｆ , P(=O)(R ６ｆ ), SO, SO ２ , N.R. ６ｆ , O, S or CONR ６ｆ is replaced by C １ -C ４０ Alkoxy, This may optionally be one or more substituents R ６ｆ is replaced by Here, one or more non-adjacent CH ２ The group is optionally R ６ｆ C=CR ６ｆ , C≡C, Si(R ６ｆ ) ２ , Ge(R ６ｆ ) ２ , Sn(R ６ｆ ) ２ , C=O, C=S, C=Se, C=NR ６ｆ , P(=O)(R ６ｆ ), SO, SO ２ , N.R. ６ｆ , O, S or CONR ６ｆ is replaced by C １ -C ４０ thioalkoxy, This may optionally be one or more substituents R ６ｆ is replaced by Here, one or more non-adjacent CH ２ The group is optionally R ６ｆ C=CR ６ｆ , C≡C, Si(R ６ｆ ) ２ , Ge(R ６ｆ ) ２ , Sn(R ６ｆ ) ２ , C=O, C=S, C=Se, C=NR ６ｆ , P(=O)(R ６ｆ ), SO, SO ２ , N.R. ６ｆ , O, S or CONR ６ｆ is replaced by C ２ -C ４０ alkenyl, This may optionally be one or more substituents R ６ｆ is replaced by Here, one or more non-adjacent CH ２ The group is optionally R ６ｆ C=CR ６ｆ , C≡C, Si(R ６ｆ ) ２ , Ge(R ６ｆ ) ２ , Sn(R ６ｆ ) ２ , C=O, C=S, C=Se, C=NR ６ｆ , P(=O)(R ６ｆ ), SO, SO ２ , N.R. ６ｆ , O, S or CONR ６ｆ is replaced by C ２ -C ４０ Alkynyl, This may optionally be one or more substituents R ６ｆ is replaced by Here, one or more non-adjacent CH ２ The group is optionally R ６ｆ C=CR ６ｆ , C≡C, Si(R ６ｆ ) ２ , Ge(R ６ｆ ) ２ , Sn(R ６ｆ ) ２ , C=O, C=S, C=Se, C=NR ６ｆ , P(=O)(R ６ｆ ), SO, SO ２ , N.R. ６ｆ , O, S or CONR ６ｆ is replaced by Optionally, one or more substituents R ６ｆ C substituted with ６ -C ６０ aryl, and Optionally, one or more substituents R ６ｆ C substituted with ３ -C ５７ heteroaryl, R ６ｆ are, in each occurrence, independently selected from the group consisting of: H. D. OPh, CF ３ 、 C.N., F. C １ -C ５ Alkyl, wherein optionally one or more hydrogen atoms are independently selected from deuterium, CN, CF ３ or substituted by F, C １ -C ５ Alkoxy, wherein optionally one or more hydrogen atoms are independently selected from deuterium, CN, CF ３ or substituted by F, C １ -C ５ thioalkoxy, wherein optionally one or more hydrogen atoms are independently selected from deuterium, CN, CF ３ or substituted by F, C ２ -C ５ alkenyl, wherein optionally one or more hydrogen atoms are independently selected from deuterium, CN, CF ３ or substituted by F, C ２ -C ５ Alkynyl, wherein optionally one or more hydrogen atoms are independently selected from deuterium, CN, CF ３ or substituted by F, Optionally, one or more C １ -C ５ C substituted with alkyl substituents ６ -C １８ aryl, Optionally, one or more C １ -C ５ C substituted with alkyl substituents ３ -C １７ heteroaryl, N (C ６ -C １８ aryl) (C ６ -C １８ aryl), N (C ３ -C １７ Heteroaryl) (C ３ -C １７ heteroaryl), and N (C ３ -C １７ Heteroaryl) (C ６ -C １８ aryl), where two or more substituents R ｆ and / or R ５ｆ are, independently of one another, one or more substituents R ｆ or R ５ｆ with the selective formation of monocyclic or polycyclic, (hetero)aliphatic, (hetero)aromatic and / or benzo-fused ring systems, Here, M ＴＡＤＦ TADF Moyeti M ＴＡＤＦ to the bridging unit L, A selected member from the group consisting of T, W, and Y represents a single bond binding site connecting the first chemical moiety and the second chemical moiety.

11. 11. The organic molecule of claim 10, wherein the first chemical moiety comprises the structure of Formula Ia: [Chemical formula Ia] where: R Ｄｉ , T, W and Y are as defined in claim 10; Q ５ is selected from the group consisting of N and C—H; Q ６ is selected from the group consisting of N and C—H; Here, Q ５ and Q ６ at least one of is N; wherein exactly one substituent selected from the group consisting of T and W represents a single bond attachment site connecting the first chemical moiety and the second chemical moiety.

12. 11. The organic molecule of claim 10, wherein the second chemical moiety comprises or consists of the structure of Formula IIb: [Chemical formula IIb] where: R ｂ are, in each occurrence, independently selected from the group consisting of: TADF Moyeti M ＴＡＤＦ A single bond connecting the bridging unit L to the bridging unit L, hydrogen, deuterium, N(R ５ ) ２ , OR ５ , Si(R ５ ) ３ , B(OR ５ ) ２ , OSO ２ R ５ , C.F. ３ ,CN,F,Br,I, C １ -C ４０ Alkyl, This may optionally be one or more substituents R ５ is replaced by Here, one or more non-adjacent CH ２ The group is optionally R ５ C=CR ５ , C≡C, Si(R ５ ) ２ , Ge(R ５ ) ２ , Sn(R ５ ) ２ , C=O, C=S, C=Se, C=NR ５ , P(=O)(R ５ ), SO, SO ２ , N.R. ５ , O, S or CONR ５ is replaced by C １ -C ４０ Alkoxy, This may optionally be one or more substituents R ５ is replaced by Here, one or more non-adjacent CH ２ The group is optionally R ５ C=CR ５ , C≡C, Si(R ５ ) ２ , Ge(R ５ ) ２ , Sn(R ５ ) ２ , C=O, C=S, C=Se, C=NR ５ , P(=O)(R ５ ), SO, SO ２ , N.R. ５ , O, S or CONR ５ is replaced by C １ -C ４０ thioalkoxy, This may optionally be one or more substituents R ５ is replaced by Here, one or more non-adjacent CH ２ The group is optionally R ５ C=CR ５ , C≡C, Si(R ５ ) ２ , Ge(R ５ ) ２ , Sn(R ５ ) ２ , C=O, C=S, C=Se, C=NR ５ , P(=O)(R ５ ), SO, SO ２ , N.R. ５ , O, S or CONR ５ is replaced by C ２ -C ４０ alkenyl, This may optionally be one or more substituents R ５ is replaced by Here, one or more non-adjacent CH ２ The group is optionally R ５ C=CR ５ , C≡C, Si(R ５ ) ２ , Ge(R ５ ) ２ , Sn(R ５ ) ２ , C=O, C=S, C=Se, C=NR ５ , P(=O)(R ５ ), SO, SO ２ , N.R. ５ , O, S or CONR ５ is replaced by C ２ -C ４０ Alkynyl, This may optionally be one or more substituents R ５ is replaced by Here, one or more non-adjacent CH ２ The group is optionally R ５ C=CR ５ , C≡C, Si(R ５ ) ２ , Ge(R ５ ) ２ , Sn(R ５ ) ２ , C=O, C=S, C=Se, C=NR ５ , P(=O)(R ５ ), SO, SO ２ , N.R. ５ , O, S or CONR ５ is replaced by Optionally, one or more substituents R ５ C substituted with ６ -C ６０ aryl, and Optionally, one or more substituents R ５ C substituted with ３ -C ５７ heteroaryl, Otherwise the definitions of claim 10 apply.

13. 11. The organic molecule of claim 10, wherein the second chemical moiety comprises or consists of the structure of Formula IIc: [Chemical formula IIc] where: R ｂ is selected from the group consisting of: TADF Moyeti M ＴＡＤＦ A single bond connecting the bridging unit L to the bridging unit L, hydrogen, deuterium, N(R ５ ) ２ , OR ５ , Si(R ５ ) ３ , B(OR ５ ) ２ , OSO ２ R ５ , C.F. ３ ,CN,F,Br,I, C １ -C ４０ Alkyl, This may optionally be one or more substituents R ５ is replaced by Here, one or more non-adjacent CH ２ The group is optionally R ５ C=CR ５ , C≡C, Si(R ５ ) ２ , Ge(R ５ ) ２ , Sn(R ５ ) ２ , C=O, C=S, C=Se, C=NR ５ , P(=O)(R ５ ), SO, SO ２ , N.R. ５ , O, S or CONR ５ is replaced by C １ -C ４０ Alkoxy, This may optionally be one or more substituents R ５ is replaced by Here, one or more non-adjacent CH ２ The group is optionally R ５ C=CR ５ , C≡C, Si(R ５ ) ２ , Ge(R ５ ) ２ , Sn(R ５ ) ２ , C=O, C=S, C=Se, C=NR ５ , P(=O)(R ５ ), SO, SO ２ , N.R. ５ , O, S or CONR ５ is replaced by C １ -C ４０ thioalkoxy, This may optionally be one or more substituents R ５ is replaced by Here, one or more non-adjacent CH ２ The group is optionally R ５ C=CR ５ , C≡C, Si(R ５ ) ２ , Ge(R ５ ) ２ , Sn(R ５ ) ２ , C=O, C=S, C=Se, C=NR ５ , P(=O)(R ５ ), SO, SO ２ , N.R. ５ , O, S or CONR ５ is replaced by C ２ -C ４０ alkenyl, This may optionally be one or more substituents R ５ is replaced by Here, one or more non-adjacent CH ２ The group is optionally R ５ C=CR ５ , C≡C, Si(R ５ ) ２ , Ge(R ５ ) ２ , Sn(R ５ ) ２ , C=O, C=S, C=Se, C=NR ５ , P(=O)(R ５ ), SO, SO ２ , N.R. ５ , O, S or CONR ５ is replaced by C ２ -C ４０ Alkynyl, This may optionally be one or more substituents R ５ is replaced by Here, one or more non-adjacent CH ２ The group is optionally R ５ C=CR ５ , C≡C, Si(R ５ ) ２ , Ge(R ５ ) ２ , Sn(R ５ ) ２ , C=O, C=S, C=Se, C=NR ５ , P(=O)(R ５ ), SO, SO ２ , N.R. ５ , O, S or CONR ５ is replaced by Optionally, one or more substituents R ５ C substituted with ６ -C ６０ aryl, and Optionally, one or more substituents R ５ C substituted with ３ -C ５７ heteroaryl, Otherwise the definitions of claim 10 apply.

14. R ｂ are, in each occurrence independently of one another, selected from the group consisting of: -TADF Moyeti M ＴＡＤＦ a single bond linking the linker unit L to the bridging unit L; -hydrogen, -deuterium, -Me、 ｉ Pr、 ｔ Bu、CN、CF ３ 、 -Me, ｉ Pr, ｔ Bu, C.N., C.F. ３ Ph optionally substituted with one or more substituents independently selected from the group consisting of -Me, ｉ Pr, ｔ Bu, C.N., C.F. ３ pyridinyl optionally substituted with one or more substituents independently selected from the group consisting of: -Me, ｉ Pr, ｔ Bu, C.N., C.F. ３ pyrimidinyl optionally substituted with one or more substituents independently selected from the group consisting of: -Me, ｉ Pr, ｔ Bu, C.N., C.F. ３ and Ph; -Me, ｉ Pr, ｔ Bu, C.N., C.F. ３ and Ph, and -N(Ph) ２ .

15. 15. Use of an organic molecule according to any one of claims 1 to 14 as a light emitter in an optoelectronic device.

16. 16. The use according to claim 15, wherein the optoelectronic device is selected from the group consisting of: Organic Light Emitting Diodes (OLEDs), - light-emitting electrochemical cells, OLED sensors, especially gas and vapor sensors that are not completely sealed off from the outside world, - organic diodes, ・Organic solar cells, - organic transistors, - organic field effect transistors, organic lasers, and - Down conversion element.

17. A composition comprising or consisting of: (a) as an emitter, at least one organic molecule according to claim 1, and (b) one or more emitter and / or host materials different from the organic molecules of claim 1; and (c) optionally, one or more dyes and / or one or more solvents.

18. An optoelectronic device comprising an organic molecule according to any one of claims 1 to 14 or a composition according to claim 17, in particular in the form of a device selected from the group consisting of: Organic light-emitting diodes (OLEDs), light-emitting electrochemical cells, OLED sensors, in particular gas and vapor sensors that are not completely sealed off from the outside, organic diodes, organic solar cells, organic transistors, organic field-effect transistors, organic lasers, and down-conversion elements.

19. -substrate, -anode, a cathode, and - comprises a light-emitting layer, the anode or the cathode is disposed on the substrate; 19. The optoelectronic device of claim 18, wherein the light-emitting layer is disposed between the anode and the cathode and comprises the organic molecule or the composition.

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