Organic molecule for optoelectronic device

Abstract

To provide an organic molecule applicable to an optoelectronic device.SOLUTION: The present invention discloses, as an organic molecule applicable to an optoelectronic device, an organic molecule having a structure represented by the following chemical formula I.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to organic light-emitting molecules and their use in organic light-emitting diodes (OLEDs) and other optoelectronic devices. Summary of the Invention [Problem to be solved by the invention]

[0002] The problem that the present invention aims to solve is to provide molecules that are suitable for use in optoelectronic devices. [Means for solving the problem]

[0003] Such objectives are achieved by the present invention, which provides novel organic molecules.

[0004] According to the invention, said organic molecules are purely organic molecules, ie they do not contain any metal ions, in contrast to the metal complexes known to be used in optoelectronic devices. [Effects of the Invention]

[0005] According to the present invention, the organic molecules exhibit emission maxima in the blue, sky blue, or green spectral range. The organic molecules exhibit emission maxima, in particular, between 420 nm and 520 nm, preferably between 440 nm and 495 nm, and more preferably between 450 nm and 470 nm. The photoluminescence quantum yield of the organic molecules according to the present invention is, in particular, 50% or more. The use of the molecules according to the present invention in optoelectronic devices, such as organic light-emitting diodes (OLEDs), leads to increased efficiency or color purity of the device, as expressed by the full width at half maximum (FWHM) of the device's emission. The corresponding OLEDs have higher stability than known emitter materials and OLEDs of comparable color. DETAILED DESCRIPTION OF THE INVENTION

[0006] The organic light-emitting molecules of the present invention comprise or consist of a first chemical moiety that comprises or consists of a structure of formula Ia, and a second chemical moiety that comprises or consists of a structure of formula Ib: [ka] Chemical formula Ia [ka] Chemical formula Ib In formulas Ia and Ib: T is a single bond attachment site or R that connects the first chemical moiety to the second chemical moiety. 2 and V is a single bond attachment site or R that connects the first chemical moiety to the second chemical moiety. 2 and W is a single bond attachment site or R that connects the first chemical moiety to the second chemical moiety. 2 and X is a single bond attachment site or R 2 and * indicates the site of attachment of the second chemical moiety to the first chemical moiety (i.e., T and V, V and W, or W and X; e.g., N of the second chemical moiety is attached to T and B of the second chemical moiety is attached to V; or B of the second chemical moiety is attached to T and N of the second chemical moiety is attached to V); R 1 are each independently selected from the group consisting of: one or more substituents R 5 C1-C5 alkyl optionally substituted with one or more substituents R 5 C6-C optionally substituted with 60 aryl, and one or more substituents R 5 C2-C optionally substituted with 57 heteroaryl, R 2 are each independently selected from the group consisting of: Hydrogen, deuterium, C1-C5 alkyl, wherein one or more hydrogen atoms are optionally replaced by deuterium; C2-C8 alkenyl, wherein one or more hydrogen atoms are optionally replaced by deuterium; C2-C8 alkynyl, wherein one or more hydrogen atoms are optionally replaced by deuterium; C6-C 18 aryl, wherein one or more hydrogen atoms are optionally replaced by deuterium; R a , R 3 and R 4 is, at each occurrence, independently selected from the group consisting of: Hydrogen, deuterium, N(R 5 )2, OR 5 , Si(R 5 )3, B(OR 5 )2, B(R 5 )2, OSO2R 5 , CF3, CN, F, Br, I, one or more substituents R 5 C1-C optionally substituted with 40 Alkyl, where one or more non-adjacent CH groups are 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, NR 5 , O, S or CONR 5 optionally replaced by one or more substituents R 5 C1-C optionally substituted with 40 Alkoxy, where one or more non-adjacent CH groups are 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, NR 5 , O, S or CONR 5 optionally replaced by one or more substituents R 5 C1-C optionally substituted with 40 thioalkoxy, where one or more non-adjacent CH groups are 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, NR 5 , O, S or CONR 5 optionally replaced by one or more substituents R 5 C2-C optionally substituted with 40 alkenyl, where one or more non-adjacent CH groups are 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, NR 5 , O, S or CONR 5 optionally replaced by one or more substituents R 5 C2-C optionally substituted with 40 Alkynyl, where one or more non-adjacent CH groups are 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, NR 5 , O, S or CONR 5 optionally replaced by one or more substituents R 5 C6-C optionally substituted with 60 aryl, and one or more substituents R 5 C2-C optionally substituted with 57 heteroaryl, R 5 are each independently selected from the group consisting of: Hydrogen, deuterium, N(R 6 )2, OR 6 , Si(R 6 )3, B(OR 6 )2, B(R 6 )2, OSO2R 6 , CF3, CN, F, Br, I, one or more substituents R 6 C1-C optionally substituted with 40 Alkyl, where one or more non-adjacent CH groups are 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, NR 6 , O, S or CONR 6 optionally replaced by one or more substituents R 6 C1-C optionally substituted with 40 Alkoxy, where one or more non-adjacent CH groups are 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, NR 6 , O, S or CONR 6optionally replaced by one or more substituents R 6 C1-C optionally substituted with 40 thioalkoxy, where one or more non-adjacent CH groups are 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, NR 6 , O, S or CONR 6 optionally replaced by one or more substituents R 6 C2-C optionally substituted with 40 alkenyl, where one or more non-adjacent CH groups are 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, NR 6 , O, S or CONR 6 optionally replaced by one or more substituents R 6 C2-C optionally substituted with 40 Alkynyl, where one or more non-adjacent CH groups are 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, NR 6 , O, S or CONR 6 optionally replaced by one or more substituents R 6 C6-C optionally substituted with 60 aryl, and one or more substituents R 6 C2-C optionally substituted with 57 heteroaryl, R 6 are each independently selected from the group consisting of: Hydrogen, deuterium, OPh (Ph = phenyl), CF3, CN, F, C1-C5 alkyl, wherein optionally, one or more hydrogen atoms are replaced, independently of one another, by deuterium, CN, CF or F; C1-C5 alkoxy, wherein optionally, one or more hydrogen atoms are replaced, independently of one another, by deuterium, CN, CF or F; C1-C5 thioalkoxy, wherein optionally, one or more hydrogen atoms are replaced, independently of one another, by deuterium, CN, CF or F; C2-C5 alkenyl, wherein optionally, one or more hydrogen atoms are replaced, independently of one another, by deuterium, CN, CF or F; C2-C5 alkynyl, wherein optionally, one or more hydrogen atoms are replaced, independently of one another, by deuterium, CN, CF or F; C6-C 18 aryl, which is optionally substituted with one or more C1-C5 alkyl substituents; C2-C 17 heteroaryl, which is optionally substituted with one or more C1-C5 alkyl substituents; N(C6-C 18 aryl)2, N(C2-C 17 heteroaryl)2, and N(C2-C 17 Heteroaryl)(C6-C 18 aryl), where the substituent R a , R 3 , R 4 and R 5 are, independently of one another, one or more substituents Ra , R 3 , R 4 and R 5 together optionally forming a mono- or polycyclic, aliphatic, aromatic, heteroaromatic and / or benzo-fused ring system, wherein exactly two adjacent substituents selected from the group T, V, W, and X represent single bond attachment sites linking a first chemical moiety to a second chemical moiety to form a fused ring, i.e., - When T and V represent a single bond attachment site linking a first chemical moiety to a second chemical moiety, W and X represent R 2 and - When V and W represent a single bond attachment site linking a first chemical moiety to a second chemical moiety, T and X represent R 2 and - When W and X represent a single bond attachment site linking a first chemical moiety to a second chemical moiety, T and V represent R 2 is.

[0007] Illustratively, the organic molecules according to the present invention comprise or consist of the structure of Formula I: [ka] Chemical formula I

[0008] The organic molecule according to the present invention comprises or consists of a structure selected from the group of formulas II-VI: [ka] Chemical formula II [ka] Chemical formula III [ka] Chemical formula IV [ka] Chemical formula V [ka] Chemical formula VI [ka] Chemical formula VI

[0009] In one embodiment, the organic molecule according to the present invention comprises or consists of a structure selected from the group consisting of Formula II and Formula III.

[0010] In a further embodiment of the present invention, R a are each independently selected from the group consisting of: hydrogen, Me, i Pr, t Bu, CN, CF3, Me, i Pr, t Ph optionally substituted with one or more substituents independently selected from the group consisting of Bu, CN, CF3 and Ph; Me, i Pr, t pyridinyl optionally substituted with one or more substituents independently selected from the group consisting of Bu, CN, CF3 and Ph; Me, i Pr, t pyrimidinyl optionally substituted with one or more substituents independently selected from the group consisting of Bu, CN, CF3 and Ph; Me, i Pr, t carbazolyl optionally substituted with one or more substituents independently selected from the group consisting of Bu, CN, CF3 and Ph; Me, i Pr, t triazinyl optionally substituted with one or more substituents independently selected from the group consisting of Bu, CN, CF3 and Ph, and N(Ph)2.

[0011] In a further embodiment of the present invention, R a are each independently selected from the group consisting of: hydrogen, Me, i Pr, t Bu, CN, CF3, Me, i Pr, t Ph optionally substituted with one or more substituents independently selected from the group consisting of Bu, CN, CF3 and Ph; Me, i Pr, t pyridinyl optionally substituted with one or more substituents independently selected from the group consisting of Bu, CN, CF3 and Ph; Me, i Pr, t pyrimidinyl optionally substituted with one or more substituents independently selected from the group consisting of Bu, CN, CF3 and Ph, and Me, i Pr, t Triazinyl optionally substituted with one or more substituents independently selected from the group consisting of Bu, CN, CF3 and Ph.

[0012] In further embodiments of the present invention, the first chemical moiety comprises or consists of the structure of formula Ia-1, the structure of formula Ia-2, or the structure of formula Ia-3: [ka] Chemical formula Ia-1 [ka] Chemical formula Ia-2 [ka] Chemical formula Ia-3 where: R bare each independently selected from the group consisting of: Hydrogen, deuterium, N(R 5 )2, OR 5 , Si(R 5 )3, B(OR 5 )2, OSO2R 5 , CF3, CN, F, Br, I, C1-C 40 Alkyl, This is a group consisting of one or more substituents R 5 optionally replaced by where one or more non-adjacent CH groups are 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, NR 5 , O, S or CONR 5 optionally replaced by C1-C 40 Alkoxy, This is a group consisting of one or more substituents R 5 optionally replaced by where one or more non-adjacent CH groups are 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, NR 5 , O, S or CONR 5 optionally replaced by C1-C 40 thioalkoxy, This is a group consisting of one or more substituents R 5 optionally replaced by where one or more non-adjacent CH groups are R 5 C=CR 5 , C≡C, Si(R 5 )2, Ge(R 5 )2, Sn(R5 )2, C=O, C=S, C=Se, C=NR 5 , P(=O)(R 5 ), SO, SO2, NR 5 , O, S or CONR 5 optionally replaced by C2-C 40 alkenyl, This is a group consisting of one or more substituents R 5 optionally replaced by where one or more non-adjacent CH groups are 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, NR 5 , O, S or CONR 5 optionally replaced by C2-C 40 Alkynyl, This is a group consisting of one or more substituents R 5 optionally replaced by where one or more non-adjacent CH groups are 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, NR 5 , O, S or CONR 5 optionally replaced by C6-C 60 aryl, This is a group consisting of one or more substituents R 5 optionally substituted with C3-C 57 heteroaryl, This is a group consisting of one or more substituents R 5 is optionally replaced by The above definitions also apply.

[0013] In certain embodiments of the invention, the first chemical moiety of the organic molecule comprises or consists of the structure of formula Ia-4, the structure of formula Ia-5, the structure of formula Ia-6, the structure of formula Ia-7, the structure of formula Ia-8, the structure of formula Ia-9, or the structure of formula Ia-10: [ka] Chemical formula Ia-4 [ka] Chemical formula Ia-5 [ka] Chemical formula Ia-6 [ka] Chemical formula Ia-7 [ka] Chemical formula Ia-8 [ka] Chemical formula Ia-9 [ka] Chemical formula Ia-10 Here, the above definitions apply.

[0014] In further embodiments of the invention, the second chemical moiety of the organic molecule comprises or consists of the structure of formula Ib-3, the structure of formula Ib-4, or the structure of formula Ib-5: [ka] Chemical formula Ib-3 [ka] Chemical formula Ib-4 [ka] Chemical formula Ib-5 where: R b are each independently selected from the group consisting of: Hydrogen, deuterium, N(R 5 )2, OR 5 , Si(R 5 )3, B(OR 5 )2, OSO2R 5 , CF3, CN, F, Br, I, one or more substituents R 5 C1-C optionally substituted with 40 Alkyl, where one or more non-adjacent CH groups are 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, NR 5 , O, S or CONR 5 optionally replaced by one or more substituents R 5 C1-C optionally substituted with 40 Alkoxy, This is a group consisting of one or more substituents R 5 optionally replaced by where one or more non-adjacent CH groups are 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, NR 5 , O, S or CONR 5 optionally replaced by one or more substituents R 5 C1-C optionally substituted with 40 thioalkoxy, where one or more non-adjacent CH groups are 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, NR 5 , O, S or CONR 5 optionally replaced by one or more substituents R 5 C2-C optionally substituted with 40 alkenyl, where one or more non-adjacent CH groups are 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, NR 5 , O, S or CONR 5 optionally replaced by one or more substituents R 5 C2-C optionally substituted with 40 Alkynyl, where one or more non-adjacent CH groups are 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, NR 5 , O, S or CONR 5 optionally replaced by one or more substituents R 5 C6-C optionally substituted with 60 aryl, and one or more substituents R 5 C3-C optionally substituted with 57 Heteroaryl. Otherwise, the above definitions apply.

[0015] In certain embodiments of the invention, the second chemical moiety of the organic molecule comprises, or consists of, the structure of formula Ib-6, the structure of formula Ib-7, the structure of formula Ib-8, the structure of formula Ib-9, the structure of formula Ib-10, the structure of formula Ib-11, or the structure of formula Ib-12: [ka] Chemical formula Ib-6 [ka] Chemical formula Ib-7 [ka] Chemical formula Ib-8 [ka] Chemical formula Ib-9 [ka] Chemical formula Ib-10 [ka] Chemical formula Ib-11 [ka] Chemical formula Ib-12 Here, the above definitions apply.

[0016] In a further embodiment of the present invention, R b are in each case selected from the group consisting of: are independently selected: hydrogen, Me, i Pr, t Bu, CN, CF3, Me, i Pr, tPh optionally substituted with one or more substituents independently selected from the group consisting of Bu, CN, CF3 and Ph; Me, i Pr, t pyridinyl optionally substituted with one or more substituents independently selected from the group consisting of Bu, CN, CF3 and Ph; Me, i Pr, t carbazolyl optionally substituted with one or more substituents independently selected from the group consisting of Bu, CN, CF3 and Ph; Me, i Pr, t triazinyl optionally substituted with one or more substituents independently selected from the group consisting of Bu, CN, CF3 and Ph, and N(Ph)2.

[0017] In a further embodiment of the present invention, R b are each independently selected from the group consisting of: Me, i Pr, t Bu, CN, CF3, Me, i Pr, t Ph optionally substituted with one or more substituents independently selected from the group consisting of Bu, CN, CF3 and Ph; Me, i Pr, t pyridinyl optionally substituted with one or more substituents independently selected from the group consisting of Bu, CN, CF3 and Ph; Me, i Pr, t carbazolyl optionally substituted with one or more substituents independently selected from the group consisting of Bu, CN, CF3 and Ph; Me, i Pr, t triazinyl optionally substituted with one or more substituents independently selected from the group consisting of Bu, CN, CF3 and Ph, and N(Ph)2.

[0018] In a further embodiment of the present invention, R b are each independently selected from the group consisting of: hydrogen, Me, i Pr, t Bu, CN, CF3, Me, i Pr, t Ph optionally substituted with one or more substituents independently selected from the group consisting of Bu, CN, CF3 and Ph; Me, i Pr, t pyridinyl optionally substituted with one or more substituents independently selected from the group consisting of Bu, CN, CF3 and Ph; Me, i Pr, t pyrimidinyl optionally substituted with one or more substituents independently selected from the group consisting of Bu, CN, CF3 and Ph, and Me, i Pr, t Triazinyl optionally substituted with one or more substituents independently selected from the group consisting of Bu, CN, CF3 and Ph.

[0019] In a further embodiment of the present invention, R b are each independently selected from the group consisting of: Me, i Pr, t Bu, CN, CF3, Me, i Pr, t Ph optionally substituted with one or more substituents independently selected from the group consisting of Bu, CN, CF3 and Ph; Me, i Pr, t pyridinyl optionally substituted with one or more substituents independently selected from the group consisting of Bu, CN, CF3 and Ph; Me, i Pr, t pyrimidinyl optionally substituted with one or more substituents independently selected from the group consisting of Bu, CN, CF3 and Ph, and Me, i Pr, t Triazinyl optionally substituted with one or more substituents independently selected from the group consisting of Bu, CN, CF3 and Ph.

[0020] Below are exemplary structures of second chemical moieties that fall within formula Ib: [ka] [ka] [ka] [ka] [ka] [ka] [ka] [ka] [ka] [ka] [ka] [ka] [ka] [ka] [ka] [ka] [ka] [ka] [ka] [ka] [ka] [ka] [ka] [ka] [ka] Here, all the above definitions apply.

[0021] Below is an exemplary structure of a first chemical moiety corresponding to formula Ia: [ka] [ka] [ka] [ka] [ka]

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[0022] In certain embodiments, R a and R 5 In each case, hydrogen (H), methyl (Me), i-propyl (CH(CH3)2)( i Pr), t-butyl ( t are independently selected from the group consisting of phenyl (Bu), phenyl (Ph), CN, CF3 and diphenylamine (NPh2).

[0023] In certain embodiments, the organic molecule according to the present invention comprises or consists of a structure selected from the group consisting of Formula IIa and Formula IIIa: [ka] Chemical formula IIa [ka] Chemical formula IIIa

[0024] In certain embodiments, the organic molecule according to the present invention comprises or consists of a structure selected from the group consisting of Formula IIb, Formula IIIb, Formula IIc, and Formula IIIc: [ka] Chemical formula IIb [ka] Chemical formula IIIb [ka] Chemical formula IIc [ka] Chemical formula IIIc

[0025] In one embodiment, R 2 are each independently selected from the group consisting of H, deuterium, C1-C5 alkyl, and phenyl.

[0026] In one embodiment, R 2 In each case, H, deuterium, methyl and phenyl are independently selected from the group consisting of:

[0027] In one embodiment, R 2 are each independently selected from the group consisting of H, methyl, and phenyl.

[0028] In one embodiment, R 2 is phenyl in each instance.

[0029] In a preferred embodiment, R 2 is H in each case.

[0030] In certain embodiments, R 1 are in each case, independently of one another, one or more substituents R 5 is C1-C5 alkyl optionally substituted with

[0031] In certain embodiments, R 1 are in each case, independently of one another, one or more substituents R 5 C2-C optionally substituted with 57 It is heteroaryl.

[0032] In certain embodiments, R 1 are in each case, independently of one another, one or more substituents R 5 C6-C optionally substituted with 60 It is aryl.

[0033] In certain embodiments, R 1 are in each case, independently of one another, C6-C optionally substituted with one or more substituents selected from the group consisting of: 60 Aryl: Hydrogen, deuterium, N(R 6 )2, OR 6 , Si(R 6 )3, B(OR 6 )2, B(R 6 )2, OSO2R 6 , CF3, CN, F, Br, I, one or more substituents R 6 C1-C optionally substituted with 40 Alkyl, one or more substituents R 6 C6-C optionally substituted with 60 aryl, and one or more substituents R 6 C2-C optionally substituted with 57 Heteroaryl.

[0034] In one embodiment, R 1 are in each case, independently of one another, C6-C optionally substituted with one or more substituents selected from the group consisting of: 60 Aryl: Hydrogen, deuterium, N(R 6 )2, Si(R 6 )3, B(R 6 )2, CF3, CN, F, one or more substituents R 6 C1-C optionally substituted with 40 Alkyl, one or more substituents R 6 C6-C optionally substituted with 60 aryl, and one or more substituents R 6 C2-C optionally substituted with 57 Heteroaryl.

[0035] In one embodiment, R 1are in each case, independently of one another, Methyl, and phenyl optionally substituted with one or more substituents selected from the group consisting of: Me, i Pr, t Bu, CN, CF3, Me, i Pr, t Ph optionally substituted with one or more substituents independently selected from the group consisting of Bu, CN, CF3 and Ph; Me, i Pr, t pyridinyl optionally substituted with one or more substituents independently selected from the group consisting of Bu, CN, CF3 and Ph; Me, i Pr, t carbazolyl optionally substituted with one or more substituents independently selected from the group consisting of Bu, CN, CF3 and Ph; Me, i Pr, t triazinyl optionally substituted with one or more substituents independently selected from the group consisting of Bu, CN, CF3 and Ph, and N(Ph)2.

[0036] In a preferred embodiment, R 1 are in each case, independently of one another, phenyl optionally substituted with one or more substituents selected from the group consisting of: Me, i Pr, t Bu, CN, CF3, Me, i Pr, t Ph optionally substituted with one or more substituents independently selected from the group consisting of Bu, CN, CF3 and Ph; Me, i Pr, t pyridinyl optionally substituted with one or more substituents independently selected from the group consisting of Bu, CN, CF3 and Ph; Me, i Pr,t carbazolyl optionally substituted with one or more substituents independently selected from the group consisting of Bu, CN, CF3 and Ph; Me, i Pr, t triazinyl optionally substituted with one or more substituents independently selected from the group consisting of Bu, CN, CF3 and Ph, and N(Ph)2.

[0037] In one embodiment, R 1 are in each case, independently of one another, phenyl optionally substituted with one or more substituents selected from the group consisting of: Me, i Pr, t Bu, CN, CF3.

[0038] In one embodiment, R 1 are in each case, independently of one another, It is phenyl optionally substituted with one or more C1-C5 alkyl substituents.

[0039] As used throughout this specification, the terms "aryl" and "aromatic" are understood in the broadest sense to refer to any monocyclic, bicyclic, or polycyclic aromatic moiety. Thus, an aryl group contains 6 to 60 aromatic ring atoms. A heteroaryl group contains 5 to 60 aromatic ring atoms, at least one of which is a heteroatom. Nevertheless, throughout this specification, the number of aromatic ring atoms may be given in subscript numbers in the definitions of specific substituents. In particular, heteroaromatic rings contain 1 to 3 heteroatoms. Furthermore, the terms "heteroaryl" and "heteroaromatic" are understood in the broadest sense to refer to any monocyclic, bicyclic, or polycyclic heteroaromatic moiety containing at least one heteroatom, which in each case may be the same or different and may be independently selected from the group consisting of N, O, and S. Thus, the term "arylene" refers to a divalent substituent that possesses two binding sites and serves as a linker structure for other molecular structures. In exemplary embodiments, if a group is defined differently from the definitions given herein, for example, if the number of aromatic ring atoms or heteroatoms differs from the definitions given, the definition in the exemplary embodiment applies. According to the present invention, a fused (cyclized) aromatic or heteroaromatic polycycle is composed of two or more single aromatic or heteroaromatic rings that form the polycycle via a condensation reaction.

[0040] In particular, as used throughout this specification, the term "aryl group" or "heteroaryl group" includes benzene, naphthalene, anthracene, phenanthrene, pyrene, dihydropyrene, chrysene, perylene, fluoranthene, benzanthracene, benzphenanthrene, tetracene, pentacene, benzpyrene, furan, benzofuran, isobenzofuran, dibenzofuran, thiophene, benzothiophene, isobenzothiophene, dibenzothiophene; pyrrole, indole, isoindole, carbazole, pyridinium, benzoquinone, quinoline, isoquinoline, acridine, phenanthridine, benzo-5,6-quinoline, benzo-6,7-quinoline, benzo-7,8-quinoline, phenothiazine, phenoxazine, pyrazole, indazole, imidazole, benzimidazole, naphthoimidazole, phenanthroimidazole, pyridoimidazole, 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 through any position of an aromatic or heteroaromatic group derived from a combination of the aforementioned groups.

[0041] As used throughout this specification, the term "cyclic group" is understood in the broadest sense as any monocyclic, bicyclic or polycyclic moiety.

[0042] As used throughout this specification, the term "biphenyl" is also understood in its broadest sense as a substituent, as ortho-biphenyl, meta-biphenyl, or para-biphenyl, where ortho, meta, and para are defined with respect to the point of attachment to another chemical moiety.

[0043] As used throughout this specification, the term "alkyl group" is understood in the broadest sense to include any linear, branched, or cyclic alkyl substituent. In particular, the term "alkyl" includes the substituents methyl (Me), ethyl (Et), n-propyl (N-propyl), methyl (Me), ethyl (Et), n-propyl (N-propyl), methyl (Me), ethyl (Et), n-propyl (N-propyl), methyl (Me), ethyl (Et), n-propyl (N-propyl), methyl (Me), ethyl (Et), n-propyl (N-propyl), methyl (Me), ethyl (Et), n-propyl (N-propyl), methyl (Me), ethyl (Et), n-propyl (N-propyl), methyl (Me), ethyl (Et), ethyl (Et), n-propyl (N-propyl), methyl (Me), ethyl (Et), ethyl (Et), 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-hexadece-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.

[0044] As used throughout this specification, the term "alkenyl" includes linear, 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.

[0045] As used throughout this specification, the term "alkynyl" includes linear, branched and cyclic alkynyl substituents. The term "alkynyl group" includes, for example, ethynyl, propynyl, Includes lopynyl, butynyl, pentynyl, hexynyl, heptynyl or octynyl.

[0046] As used throughout this specification, the term "alkoxy" includes linear, 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.

[0047] The term "thioalkoxy" as used throughout this specification includes linear, branched and cyclic thioalkoxy substituents, where O in the exemplary alkoxy group is replaced with S.

[0048] The terms "halogen" and "halo" as used throughout this specification are also understood in the broadest sense, preferably fluorine, chlorine, bromine or iodine.

[0049] Wherever hydrogen (H) is mentioned herein, it is also substituted with deuterium in each instance.

[0050] When a molecular fragment is described as being attached to a substituent or other moiety, it is understood that the name may be described as just the fragment (e.g., naphthyl, dibenzofuryl) or as the entire molecule (e.g., naphthalene, dibenzofuran). As used herein, the above ways of describing a substituent or attached fragment are considered equivalent.

[0051] In one embodiment, the organic molecules according to the present invention have an excited-state lifetime of 5.0 μs or less, 2.5 μs or less, particularly 2.0 μs or less, more preferably 1.0 μs or less, or 0.7 μs or less in a poly(methyl methacrylate) (PMMA) film containing 2 wt % of the organic molecules at room temperature.

[0052] 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-ultraviolet range, i.e. in the wavelength range of 380 to 800 nm, in a PMMA film containing 2% by weight of the organic molecules at room temperature, with a full width at half maximum of less than 0.25 eV, preferably less than 0.22 eV, more preferably less than 0.18 eV, even more preferably less than 0.15 eV or less than 0.12 eV.

[0053] Orbital energies and excited state energies can be determined through experimental methods. 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. LUMO is E HOMO +E gap where E gap is determined as follows: For host compounds, unless otherwise specified, the onset of the emission spectrum of a PMMA film containing 10 wt. % of the host is E gap For the emitter molecule, E g ap is determined as the energy at which the excitation and emission spectra of a PMMA film containing 2% by weight of the emitter intersect. For the organic molecules according to the invention, E gap is determined as the energy at which the excitation and emission spectra of a PMMA film containing 2 wt. % of the emitter intersect.

[0054] The energy of the first excited triplet state T1 is determined from the onset of the emission spectrum at low temperatures, typically 77 K. For host compounds where the first excited singlet state and the lowest triplet state are separated in energy by 0.4 eV or more, phosphorescence is typically visible in the steady-state spectrum in 2-Me-THF. Therefore, the triplet energy is also 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 and is measured in a PMMA film containing 2 wt. % of the emitter unless otherwise specified. In the case of the organic molecules according to the invention, it is measured in a PMMA film containing 2 wt. % of the organic molecules according to the invention. The energy of the first excited singlet state S1 for both the host and emitter compounds is determined from the onset of the emission spectrum and is measured in a PMMA film containing 10 wt. % of the host or emitter compound unless otherwise specified, and in the case of the organic molecules according to the invention, it is measured in a PMMA film containing 2 wt. % of the organic molecules according to the invention.

[0055] The onset of the emission spectrum is determined by calculating the intersection of a tangent to the emission spectrum with the x-axis, which is set at the high energy side of the emission band and at the half maximum of the maximum intensity of the emission spectrum.

[0056] A further aspect of the present invention relates to the use of the organic molecules according to the invention as light emitters or absorbers and / or host materials and / or electron transport materials and / or hole injection materials and / or hole blocking materials in optoelectronic devices.

[0057] A preferred embodiment relates to the use of organic molecules according to the invention as light emitters in optoelectronic devices.

[0058] An optoelectronic device is understood in the broadest sense as any device based on organic materials that is suitable for emitting light in the visible or near ultraviolet (UV) range, i.e., in the wavelength range from 380 to 800 nm. Even more preferably, organic electroluminescent devices are capable of emitting light in the visible range, i.e., in the wavelength range from 400 to 800 nm.

[0059] In connection with such applications, the optoelectronic device is more particularly selected from the group consisting of: -Organic Light Emitting Diode (OLED) -Light-emitting electrochemical cells -OLED sensors, especially gas and vapor sensors that are not completely isolated from the outside -Organic diode -Organic solar cells -Organic transistor -Organic field-effect transistors -Organic laser -down-conversion elements

[0060] For such applications, in preferred embodiments, the organic electroluminescent 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.

[0061] For said applications, in the light-emitting layer of an optoelectronic device, more particularly an OLED, the fraction of the organic molecules according to the invention is 0.1% to 99% by weight, more particularly 1% to 80% by weight. In another embodiment, the proportion of the organic molecules in the light-emitting layer is 100% by weight.

[0062] In one embodiment, the light-emitting layer comprises not only the organic molecules according to the present invention but also a host whose triplet (T1) energy level and singlet (S1) energy level are energetically higher than the triplet (T1) energy level and singlet (S1) energy level of the organic molecules. Contains methyltransferase.

[0063] A further aspect of the present invention relates to a composition comprising or consisting of: (a) one or more organic molecules according to the invention, in particular in the form of an emitter and / or in the form of a host, and (b) one or more emitter and / or host substances different from the organic molecules according to the present invention; (c) optionally, one or more dyes and / or one or more solvents

[0064] In one embodiment, the light-emitting layer comprises (or consists essentially of) a composition comprising or consisting of: (a) one or more organic molecules according to the invention, in particular in the form of an emitter and / or in the form of a host; (b) one or more emitter and / or host substances different from the organic molecules according to the present invention; (c) optionally, one or more dyes and / or one or more solvents

[0065] In certain embodiments, the emissive layer EML comprises (or consists essentially of) a composition comprising or consisting of: (i) 0.1 to 10% by weight, preferably 0.5 to 5% by weight, in particular 1 to 3% by weight, of one or more organic molecules according to the invention (ii) 5 to 99% by weight, preferably 15 to 85% by weight, in particular 20 to 75% by weight, of one or more host compounds H, and (iii) 0.9 to 94.9% by weight, preferably 14.5 to 80% by weight, in particular 24 to 77% by weight, of one or more additional host compounds D having a structure different from that of the molecules 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 (iv) optionally 0 to 30% by weight, in particular 0 to 20% by weight, preferably 0 to 5% by weight, of at least one further emitter molecule F having a structure different from that of the molecule according to the invention.

[0066] Preferably, energy can be transferred from the host compound H to one or more organic molecules according to 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 E according to 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 E according to the invention.

[0067] In one embodiment, the host compound H has an energy E in the range of −5 to −6.5 eV. 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).

[0068] 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).

[0069] In one embodiment, the host compound H has an energy E HOMO (H) Occupied orbital HOMO (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 (D) has the highest occupied molecular orbital HOMO (D), and energy E LUMO (D) has a lowest unoccupied molecular orbital (LUMO) (D), The organic molecule E according to the present invention has an energy E HOMO The highest occupied molecular orbital (HOMO) with (E), and 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 E 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 E 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, and even more preferably -0.1 eV to 0.1 eV.

[0070] In one embodiment of the present invention, the host compound D and / or the host compound H is a thermally activated delayed fluorescence (TADF) material. The TADF material has a wavelength of 2500 cm -1 ΔE corresponds to the energy difference between the first excited singlet state (S1) and the first excited triplet state (T1) less than ST Preferably, the TADF material has a 3000 cm -1 less than 1500 cm -1 less than, even more preferably, 1000 cm -1 less than, and more preferably, 500 cm -1 Less than ΔE ST Indicates the value.

[0071] In one embodiment, host compound D is a TADF material and host compound H is a TADF material having a luminescence wavelength of 2500 cm -1 Larger ΔE STIn a particular embodiment, host compound D is a TADF material and host compound H is selected from the group consisting of CBP, mCP, mCBP, 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.

[0072] In one embodiment, host compound H is a TADF material and host compound D is a TADF material having a luminescence wavelength of 2500 cm -1 Larger ΔE ST In certain embodiments, host compound H is a TADF material and host compound D is selected from the group consisting of 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).

[0073] In a further aspect, the present invention relates to an optoelectronic device comprising an organic molecule or composition of the type described herein, more particularly 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.

[0074] In a preferred embodiment, the organic electroluminescent element is an organic light emitting diode. The device is selected from the group consisting of an organic light emitting diode (OLED), a light emitting electrochemical cell (LEC), and a light emitting transistor.

[0075] In one embodiment of the inventive optoelectronic device, the inventive organic molecule E is used as emissive material in the emissive layer EML.

[0076] In one embodiment of the optoelectronic device of the present invention, the light-emitting layer EML consists of the composition according to the present invention as described herein.

[0077] When the organic electroluminescent element 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 optionally includes layers selected from the group consisting of HIL, HTL, EBL, HBL, ETL, and EIL, and different layers may be combined, and the OLED may include one or more layers of each layer type defined above.

[0078] The organic electroluminescent device, in one embodiment, also includes at least one protective layer that protects the device from damaging exposure to harmful substances in the environment, including, for example, moisture, vapors and / or gases.

[0079] In one embodiment of the present invention, the organic electroluminescent device is an OLED having the following inverted layer structure: 1. Substrate 2. Cathode layer 3.Electron injection layer (EIL) 4.Electron transport layer (ETL) 5. Hole Blocking Layer (HBL) 6. 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 optionally includes layers selected from the group consisting of HIL, HTL, EBL, HBL, ETL, and EIL, and different layers may be combined, and the OLED may include one or more layers of each layer type defined above.

[0080] In one embodiment of the present invention, the organic electroluminescent element is an OLED that can have a stacked structure. In this structure, individual units are stacked on top of each other, unlike the typical arrangement in which OLEDs are arranged side by side. Mixed light can be generated by an OLED that exhibits a stacked structure, and in particular, white light can be generated by stacking a blue OLED, a green OLED, and a red OLED. In addition, an OLED that exhibits a stacked structure can have a charge generation layer (CGL) that is stacked on top of the OLED. It may also include a CGL, which is typically located between two OLED subunits and typically configured as an n-doped layer and a p-doped layer, with the n-doped layer of one CGL typically located closer to the anode layer.

[0081] In one embodiment of the present invention, the organic electroluminescent device is an OLED comprising two or more light-emitting layers between an anode and a cathode. In particular, a so-called tandem OLED comprises 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 comprise additional layers, such as a charge generation layer, a charge blocking layer, or a charge transport layer, between each of the light-emitting layers. In a further embodiment, the light-emitting layers are stacked adjacent to each other. In a further embodiment, the tandem OLED comprises a charge generation layer between each of the two light-emitting layers. Adjacent light-emitting layers or light-emitting layers separated by a charge generation layer may also be combined.

[0082] The substrate can be made of any material or composition of material. Most often, 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 slide may be used, which allows for a higher level of flexibility. The anode layer A is made of a material that allows for a nearly (essentially) transparent film. Since at least one of the electrodes must be (essentially) transparent to allow light emission from the OLED, either 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 anode layers A may, for example, comprise 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.

[0083] The anode layer A is (essentially) indium tin oxide (ITO) (e.g., (InO3) 0.9 (SnO2) 0.1 The roughness of the anode layer A due to the transparent conductive oxide (TCO) can also be 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 facilitated. The hole injection layer (HIL) may also comprise poly-3,4-ethylenedioxythiophene (PEDOT), polystyrene sulfonate (PSS), MoO2, VO5, CuPC, or CuI, particularly a mixture of PEDOT and PSS. The hole injection layer (HIL) may also prevent metal diffusion from the anode layer A into the hole transport layer (HTL). For example, the HIL can be poly-3,4-ethylenedioxythiophene:polystyrenesulfonic acid (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-Naphthalenyl)-N,N'-bis-phenyl-(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). It is also composed of

[0084] The hole transport layer (HTL) is generally located adjacent to the anode layer A or the hole injection layer (HIL). Any hole transport compound can be used here. For example, electron-rich heteroaromatic compounds such as triarylamines and / or carbazoles can also be 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 function as 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 formed of 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 9,9′-diphenyl-6-(9-phenyl-9H- The HTL may also include a star-shaped heterocycle such as (carbazol-3-yl)-9H,9'H-3,3'-bicarbazole (TrisPcz). The HTL may also include a p-doped layer composed of an inorganic or organic dopant in an organic hole-transporting matrix. The inorganic dopant may be, for example, a transition metal oxide such as vanadium oxide, molybdenum oxide, or tungsten oxide. The organic dopant may be, for example, tetrafluorotetracyanoquinodimethane (F4-TCNQ), copper-pentafluorobenzoate (Cu(I)pFBz), or a transition metal complex.

[0085] The EBL may be, for example, 1,3-bis(carbazol-9-yl)benzene (mCP), TCTA, 2-TNATA, 3,3-di(9H-carbazol-9-yl)biphenyl (mCBP), tris-Pcz, 9-(4-tert-butylphenyl)-3,6-bis(triphenylsilyl)-9H-carbazole (CzSi), and / or N,N'-dica It also contains rubazolyl-1,4-dimethylbenzene (DCB).

[0086] An emissive layer (EML) is typically located adjacent to the hole-transporting layer (HTL). The emissive layer (EML) comprises at least one emissive molecule. In particular, the EML comprises one or more emissive molecules E according to the present invention. In one embodiment, the emissive layer comprises only organic molecules according to the present invention. Typically, the EML further comprises one or more host materials H. For example, the host material H may be 4,4'-bis-(N-carbazolyl)-biphenyl (CBP), mCP, mCBP, dibenzo[b,d]thiophen-2-yltriphenylsilane (Sif87), CzSi, 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, 9-[3-(dibenz ...

[0033] The compound is selected from the group consisting of 9-[3,5-bis(2-dibenzofuranyl)phenyl]-9H-carbazole, 9-[3,5-bis(2-dibenzothiophen-2-yl)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 H should generally be selected to exhibit a first triplet (T1) energy level and a first singlet (S1) energy level that are energetically higher than the first triplet (T1) energy level and the first singlet (S1) energy level of the organic molecule.

[0087] In one embodiment of the present invention, the EML comprises a so-called mixed host system having at least one hole-dominant host and one electron-dominant host. In a specific embodiment, the EML comprises exactly one light-emitting organic molecule according to the present invention, T2T as the electron-dominant host, and one 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 the hole-dominant host. In a further embodiment, the EML comprises 50 to 80% by weight, preferably 60 to 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 to 45% by weight, preferably 15 to 30% by weight, of T2T, and 5 to 40% by weight, preferably 10 to 30% by weight, of an emissive molecule according to the present invention.

[0088] An electron transport layer (ETL) may be disposed adjacent to the light-emitting layer (EML). Any electron transporter may be used here. For example, electron-deficient compounds such as benzimidazole, pyridine, triazole, oxadiazole (e.g., 1,3,4-oxadiazole), phosphine oxide, and sulfone 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 also include 2,9-bis(naphthalen-2-yl)-4,7-diphenyl-1,10-phenanthroline (NBphen), aluminum tris(8-hydroxyquinoline) (Alq), diphenyl-4-triphenylsilylphenyl-phosphine oxide (TSPO), 2,7-di(2,2′-bipyridin-5-yl)triphenyl (BPyTP), 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 transporting layer (ETL) can also block holes, or a hole blocking layer (HBL) is introduced.

[0089] 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(naphthalen-2-yl)-4,7-diphenyl-1,10-phenanthroline (NBphen), aluminum-tris(8-hydroxyquinoline) (Alq), diphenyl-4-triphenylsilylphenyl-phosphine oxide, and the like. These include 2,4,6-tris(biphenyl-3-yl)-1,3,5-triazine (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).

[0090] A cathode layer C may be disposed adjacent to the electron transport layer (ETL). The cathode layer C may be, for example, a metal (e.g., Al, Au, Ag, Pt, Cu, Zn, Ni, Fe, Pb, L The cathode layer C may comprise or consist of a metal such as ZnO, ZnS, ZnO ...

[0091] The OLED may optionally further include a protective layer (also referred to as an electron injection layer (EIL)) between the electron transport layer (ETL) and the cathode layer C. The layer may include lithium fluoride, cesium fluoride, silver, 8-hydroxyquinolinolatolithium (Liq), Li2O, BaF2, MgO, and / or NaF.

[0092] Optionally, the electron transporting layer (ETL) and / or the hole blocking layer (HBL) also comprise one or more host compounds H.

[0093] The emissive layer EML may further include one or more additional emitter molecules F to further modify the emission and / or absorption spectrum of the emissive layer EML. 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 molecules E according to the present invention. The emitter molecules F may also be TADF emitters. Alternatively, the emitter molecules F may also 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 transferred from the emitter molecules according to the present invention to the emitter molecules F before relaxing to the ground state S, typically emitting red-shifted light compared to the light emitted by the organic molecules. Optionally, the emitter molecules F may also induce a two-photon effect (i.e., absorption of two photons at half the maximum absorption energy).

[0094] Optionally, the organic electroluminescent device (e.g., OLED) can also be, for example, an essentially white organic electroluminescent device. For example, such a white organic electroluminescent device can also include at least one (deep) blue emitter molecule and one or more emitter molecules that emit green and / or red light. Optionally, there can then be energy transfer between the two or more molecules, as described above.

[0095] As used herein, unless more specifically defined in a particular context, the designations for the color of emitted and / or absorbed light are as follows: Purple: wavelength range of >380~420nm Deep blue: wavelength range of >420~480nm Sky blue: wavelength range of >480~500nm Green: wavelength range of >500~560nm Yellow: wavelength range of >560-580nm Orange: wavelength range of >580~620nm Red: wavelength range of >620~800nm

[0096] Associated with the emitter molecule, such hues indicate emission maxima. Thus, for example, a deep blue emitter has an emission maximum in the range >420-480 nm, a sky blue emitter has an emission maximum in the range >480-500 nm, a green emitter has an emission maximum in the range >500-560 nm, and a red emitter has an emission maximum in the range >620-800 nm.

[0097] The deep blue emitter preferably has an emission maximum of less than 480 nm, more preferably less than 470 nm, even more preferably less than 465 nm, and even more preferably less than 460 nm. The emission maximum is typically greater than 420 nm, preferably greater than 430 nm, more preferably greater than 440 nm, and even more preferably greater than 450 nm.

[0098] Thus, a further aspect of the present invention is a 2 and / or an OLED exhibiting an external quantum efficiency of greater than 8%, preferably greater than 10%, more preferably greater than 13%, even more preferably greater than 15%, and even more preferably greater than 20% at 420 nm to 500 nm, preferably 430 nm to 490 nm, more preferably 440 nm to 480 nm, and even more preferably 450 nm to 470 nm; and / or an OLED exhibiting an emission maximum of 500 cd / m 2 and more preferably, greater than 200 h, more preferably, greater than 400 h, even more preferably, greater than 750 h, and even more preferably, greater than 1000 h. Accordingly, a further aspect of the present invention relates to OLEDs having an emission exhibiting a CIEy color coordinate of less than 0.45, preferably less than 0.30, more preferably less than 0.20, even more preferably, less than 0.15, and even more preferably, less than 0.10.

[0099] Yet another aspect of the present invention relates to OLEDs that emit light at well-defined color points. According to the present invention, the OLEDs emit light with a narrow emission bandwidth (small full width at half maximum (FWHM)). In one aspect, the OLEDs according to the present invention emit light with an FWHM of the main emission peak of less than 0.25 eV, preferably less than 0.20 eV, more preferably less than 0.17 eV, even more preferably less than 0.15 eV, and even more preferably less than 0.13 eV.

[0100] Yet another aspect of the present invention relates to an OLED that emits light having CIEx and CIEy color coordinates that are 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 is suitable for use in UHD (Ultra High Definition) displays, e.g., UHD- Thus, a further aspect of the present invention relates to an OLED whose emission exhibits CIEx color coordinates 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 CIEy color coordinates 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, suitable for use in TVs.

[0101] In a further aspect, the present invention relates to a method for producing an optoelectronic component, in which the organic molecules of the present invention are used.

[0102] The organic electroluminescent device, in particular the OLED, according to the present invention may be produced by any means of vapor deposition and / or liquid processes. Thus, at least one layer may be produced by the following process: -Sublimation process -Organic vapor phase deposition process -Carrier gas sublimation process - Solution processing or printing

[0103] Use in producing organic electroluminescent devices, in particular OLEDs according to the invention The methods for depositing the different layers are well 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 the same or may be deposited by different deposition methods. It can be deposited using

[0104] For example, vapor deposition processes include thermal (co)evaporation, chemical vapor deposition, and physical vapor deposition. In the case of active matrix OLED displays, an AMOLED backplane is used as the substrate. Individual layers can also be 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., a nitrogen atmosphere), and the solvent may be completely or partially removed by means known in the art. [Example]

[0105] General Synthesis Method I [ka] [ka] General procedure for synthesis AAV1: [ka] E-0 (1.00 equivalents), the corresponding donor molecule E-1 (2.00 equivalents), and tripotassium phosphate (CAS7778-53-2, 4.00 equivalents) were dissolved in DMSO under a nitrogen atmosphere. The mixture is suspended in HCl and stirred at 120°C. After cooling to room temperature, the reaction mixture is poured into water to precipitate the organic matter. The precipitate is filtered (glass fiber filter) and then dissolved in dichloromethane. The resulting solution is added to brine and the phases are separated. After drying over MgSO4, the crude product is purified by recrystallization or flash chromatography. Product I-1 is obtained as a solid.

[0106] AAV2: [ka] I-1 (1.00 equivalents) is dissolved in tert-butylbenzene under a nitrogen atmosphere, and the solution is cooled to -30°C. t BuLi) solution (4.20 equiv., CAS: 594-19-4) is added dropwise and the reaction mixture is allowed to warm to 0° C. After stirring at 0° C. for 120 min, t The solvent and by-products of the BuLi solution are removed under reduced pressure, and the reaction mixture is cooled again to −78° C. Dichloroarylborane (R 1 A solution of boron tribromide (BBr, CAS: 10294-33-4, 3.00 equiv.) is added dropwise, the cooling bath is removed, and the reaction mixture is allowed to warm to 0 °C. After stirring at 0 °C for 30 min, a solution of boron tribromide (BBr, CAS: 10294-33-4, 3.00 equiv.) is added dropwise. The reaction mixture is allowed to warm to room temperature (rt) and then stirred at room temperature for 3 h. The reaction mixture is then poured into water, and the resulting precipitate is filtered and washed with water. The precipitate is filtered (glass fiber filter) and then dissolved in dichloromethane. The resulting solution is added to brine and the phases are separated. After drying over MgSO4, the crude product is purified by recrystallization or flash chromatography.

[0107] General Synthesis Method II [ka] [ka] [ka]

[0108] AAV3: [ka] E-0 (1.00 equivalent), the corresponding donor molecule E-1 (1.00 equivalent), and tripotassium phosphate (CAS7778-53-2, 2.00 equivalent) were dissolved in DMSO under a nitrogen atmosphere. The mixture is suspended in HCl and stirred at 120°C. After cooling to room temperature, the reaction mixture is poured into water to precipitate the organic matter. The precipitate is filtered (glass fiber filter) and then dissolved in dichloromethane. The resulting solution is added to brine and the phases are separated. After drying over MgSO4, the crude product is purified by recrystallization or flash chromatography. The product I-2 is obtained as a solid.

[0109] AAV4: [ka] I-2 (1.00 equivalent), the corresponding donor molecule E-2 (1.00 equivalent), and tripotassium phosphate (CAS7778-53-2, 2.00 equivalent) were dissolved in DMSO under a nitrogen atmosphere. The mixture is suspended in HCl and stirred at 120°C. After cooling to room temperature, the reaction mixture is poured into water to precipitate the organic matter. The precipitate is filtered (glass fiber filter) and then dissolved in dichloromethane. The resulting solution is added to brine and the phases are separated. After drying over MgSO4, the crude product is purified by recrystallization or flash chromatography. The product I-3 is obtained as a solid.

[0110] cyclic voltmeter

[0111] The cyclic voltage and current are measured in dichloromethane, or a suitable solvent, and a suitable supporting electrolyte (e.g., 0.1 mol / L tetrabutylammonium hexafluorophosphate) at a concentration of 10 -3The measurement was carried out at room temperature in a nitrogen atmosphere using a three-electrode assembly (working electrode and counter electrode: Pt wire, reference electrode: Pt wire) and FeCp2 / FeCp2 as an internal standard. + Use The HOMO data were corrected using perocene as an internal standard relative to a saturated calomel electrode (SCE).

[0112] Density functional theory calculations The molecular structures were optimized using the BP86 function and the RI (Resolution of Identity) approach. The excitation energies were calculated with the TD-DFT (Time-Dependent DFT) method using the (BP86) optimized structures. The orbital energies and excited state energies were calculated with the B3LYP function. The Def2-SVP basis set and m4-grid were used for numerical integration. The Turbomole program package was used for all calculations. Used in calculations.

[0113] optical physical measurements Sample pretreatment: spin coating Equipment: Spin150, SPSeuro The sample concentration is 10 mg / ml dissolved in an appropriate solvent. Program: 1) 400 U / min for 3 seconds, 1,000 U / min for 20 seconds (1,000 U / m / s). 3) 4,000 U / min for 10 seconds (1,000 U / m / s). After coating, the film was dried at 70°C for 1 minute.

[0114] Photoluminescence spectroscopy and time-correlated single photon coefficient (TCSPC) Steady-state emission spectroscopy was recorded 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 were used to correct the emission and excitation spectra.

[0115] Excited state lifetimes were measured using the TCSPC with the FM-2013 equipment and the Horiba Yvon TCSPC hub. The method is determined using the same system. Excitation light source: NanoLED 370 (wavelength: 371 nm, pulse duration: 1.1 ns) NanoLED 290 (wavelength: 294 nm, pulse duration: <1 ns) SpectraLED310 (wavelength: 314nm) SpectraLED355 (wavelength: 355nm) Data analysis (exponential fit) is performed using the software product family DataStation and DAS6 analysis software. The fit is calculated using the chi-squared test. )

[0116] Photoluminescence quantum yield measurements For photoluminescence quantum yield (PLQY) measurements, absolute PL quantum yield measurements A C9920-03G system (Hamamatsu Photonics) was used. Quantum yields and CIE coordinates were determined using the software U6039-05 version 3.6.0. Emission maxima are given in nm, quantum yields Φ are given in %, and CIE coordinates are given as x,y values. PLQY is determined using the following protocol: 1) Quality assurance: Anthracene in ethanol (known concentration) is used as a standard. 2) Excitation wavelength: The absorption maximum of the organic molecule is determined and that wavelength is used to excite the molecule. 3) Measurement The quantum yield is measured on a solution or film sample in a nitrogen atmosphere and is calculated using the following equation:

number

[0117] Fabrication and characterization of optoelectronic devices Optoelectronic devices, particularly OLED devices, containing the organic molecules according to the present invention can also be produced by vacuum deposition. 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 if no value is specified, the fraction of the compound is the difference between the specified value and 100%. 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 at which the measured luminance has decreased to 50% of the initial luminance; similarly, LT80 corresponds to the time at which the measured luminance has decreased to 80% of the initial luminance, and LT95 corresponds to the time at which the measured luminance has decreased to 95% of the initial luminance. Accelerated lifetime measurements are performed (e.g., applying increased current densities), e.g., 500 cd / m 2 In the present invention, the LT80 value is determined using the following formula:

number

[0118] HPLC-MS HPLC-MS analysis was performed using an Agilent HPLC column equipped with an MS detector (Thermo LTQ XL). This is done on LC (1100 series). The general HPLC method is as follows: Agilent (ZORBAX Eclipse Plus 9 A reversed-phase column 4.6 mm x 150 mm and particle size 3.5 μm is used for HPLC. HPLC-MS measurements are performed at room temperature (rt) with a gradient.

[0119] [Table 1] The following solvent mixtures were used: [Table 2]

[0120] From the analyte solution at a concentration of 0.5 mg / mL, an injection volume of 5 μL is taken for the measurement. The ionization of the probe is carried out by positive (APCI + ) ionization mode or negative (APCI - ) ionization mode using an APCI (atmospheric pressure chemical ionization) source.

[0121] Synthesis of Example 1 [ka] [ka] 1,4-Difluorobenzene (1.00 equiv.), 1-bromo-9H-carbazole (CAS 16807-11-7, 2.00 equiv.), and tripotassium phosphate (CAS 7778-53-2, 4.00 equiv.) are suspended in DMSO under a nitrogen atmosphere and stirred at 120 °C. After cooling to room temperature, the reaction mixture is poured into water to precipitate the organic matter. The precipitate is filtered (glass fiber filter) and then dissolved in dichloromethane. The resulting solution is added to brine and the phases are separated. After drying over MgSO4, the crude product is purified by recrystallization or flash chromatography. Product I-1 is obtained as a solid. [ka] I-1 (1.00 equivalents) is dissolved in tert-butylbenzene under a nitrogen atmosphere, and the solution is cooled to -30°C. t BuLi) solution (4.20 equiv., CAS: 594-19-4) is added dropwise and the reaction mixture is allowed to warm to 0° C. After stirring at 0° C. for 120 min, t The solvent and by-products of the BuLi solution are removed under reduced pressure, and the reaction mixture is cooled again to -78 °C. Dichlorophenylborane solution (PhBCl2, CAS: 873-51-8, 4.00 equiv.) is added dropwise, the cooling bath is removed, and the reaction mixture is allowed to warm to 0 °C. After stirring at 0 °C for 30 min, boron tribromide solution (BBr3, CAS: 10294-33-4, 3.00 equiv.) is added dropwise. The reaction mixture is allowed to warm to room temperature (rt) and then stirred at room temperature for 3 h. The reaction mixture is then poured into water, and the resulting precipitate is filtered and washed with water. The precipitate is filtered (glass fiber filter) and then dissolved in dichloromethane. The resulting solution is added to brine, and the phases are separated. After drying over MgSO4, the crude product is purified by recrystallization or flash chromatography.

[0122] Additional Examples of Organic Molecules of the Invention [ka] [ka]

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Claims

1. 1. An organic molecule comprising: a first chemical moiety comprising the structure of Formula Ia: and a second chemical moiety comprising the structure of Formula Ib: 【Chemistry 1】 Chemical formula Ia 【Chemistry 2】 Chemical formula Ib In formulas Ia and Ib: T is a single bond attachment site or R ２ and V is a single bond attachment site or R that connects the first chemical moiety to the second chemical moiety. ２ and W is a single bond attachment site or R ２ and X is a single bond attachment site or R ２ and * indicates the attachment site of the second chemical moiety to the first chemical moiety; R １ are each independently selected from the group consisting of: one or more substituents R ５ C optionally substituted with １ -C ５ Alkyl, one or more substituents R ５ C optionally substituted with ６ -C ６０ aryl, and one or more substituents R ５ C optionally substituted with ２ -C ５７ heteroaryl, R ２ are each independently selected from the group consisting of: Hydrogen, deuterium, C １ -C ５ Alkyl, wherein one or more hydrogen atoms are optionally replaced by deuterium; C ２ -C ８ alkenyl, wherein one or more hydrogen atoms are optionally replaced by deuterium; C ２ -C ８ Alkynyl, wherein one or more hydrogen atoms are optionally replaced by deuterium; C ６ -C １８ aryl, wherein one or more hydrogen atoms are optionally replaced by deuterium; R ａ , R ３ and R ４ is, at each occurrence, independently selected from the group consisting of: Hydrogen, deuterium, N(R ５ ) ２ , OR ５ , Si(R ５ ) ３ , B(OR ５ ) ２ , B(R ５ ) ２ , OSO ２ R ５ , C.F. ３ ,CN,F,Br,I, one or more substituents R ５ C optionally substituted with １ -C ４０ Alkyl, Here, one or more non-adjacent CH ２ The group is 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 optionally replaced by one or more substituents R ５ C optionally substituted with １ -C ４０ Alkoxy, Here, one or more non-adjacent CH ２ The group is 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 optionally replaced by one or more substituents R ５ C optionally substituted with １ -C ４０ thioalkoxy, Here, one or more non-adjacent CH ２ The group is 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 optionally replaced by one or more substituents R ５ C optionally substituted with ２ -C ４０ alkenyl, Here, one or more non-adjacent CH ２ The group is 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 optionally replaced by one or more substituents R ５ C optionally substituted with ２ -C ４０ Alkynyl, Here, one or more non-adjacent CH ２ The group is 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 optionally replaced by one or more substituents R ５ C optionally substituted with ６ -C ６０ aryl, and one or more substituents R ５ C optionally substituted with ２ -C ５７ heteroaryl, R ５ are each independently selected from the group consisting of: Hydrogen, deuterium, N(R ６ ) ２ , OR ６ , Si(R ６ ) ３ , B(OR ６ ) ２ , B(R ６ ) ２ , OSO ２ R ６ , C.F. ３ ,CN,F,Br,I, one or more substituents R ６ C optionally substituted with １ -C ４０ Alkyl, Here, one or more non-adjacent CH ２ The group is 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 optionally replaced by one or more substituents R ６ C optionally substituted with １ -C ４０ Alkoxy, Here, one or more non-adjacent CH ２ The group is 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 optionally replaced by one or more substituents R ６ C optionally substituted with １ -C ４０ thioalkoxy, Here, one or more non-adjacent CH ２ The group is 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 optionally replaced by one or more substituents R ６ C optionally substituted with ２ -C ４０ alkenyl, Here, one or more non-adjacent CH ２ The group is 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 optionally replaced by one or more substituents R ６ C optionally substituted with ２ -C ４０ Alkynyl, Here, one or more non-adjacent CH ２ The group is 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 optionally replaced by one or more substituents R ６ C optionally substituted with ６ -C ６０ aryl, and one or more substituents R ６ C optionally substituted with ２ -C ５７ heteroaryl, R ６ are each 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 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, C ６ -C １８ aryl, This means that 1 or more C １ -C ５ optionally substituted with alkyl substituents; C ２ -C １７ heteroaryl, This means that 1 or more C １ -C ５ optionally substituted with alkyl substituents; 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, the substituent R ａ , R ３ , R ４ and R ５ are, independently of one another, one or more substituents R ａ , R ３ , R ４ and R ５ together optionally forming a mono- or polycyclic, aliphatic, aromatic, heteroaromatic and / or benzo-fused ring system, wherein exactly two adjacent substituents selected from the group T, V, W, and X represent single bond attachment sites linking said first chemical moiety to said second chemical moiety to form a ring.

2. R １ are in each case, independently of one another, Methyl, and 10. The organic molecule of claim 1, selected from the group consisting of phenyl optionally substituted with one or more substituents selected from the group consisting of: 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 carbazolyl optionally substituted with one or more substituents independently selected from the group consisting of: Me, ｉ Pr, ｔ Bu, C.N., C.F. ３ triazinyl optionally substituted with one or more substituents independently selected from the group consisting of: N(Ph) ２ .

3. R １ In each case, one or more C １ -C ５ 3. The organic molecule of claim 1 or claim 2, which is a phenyl optionally substituted with an alkyl substituent.

4. R ２ are H, deuterium, and C in each case. １ -C ５ 4. The organic molecule of claim 1, wherein each of the groups is independently selected from the group consisting of alkyl and phenyl.

5. R ２ The organic molecule of claim 1 , wherein each occurrence of is H.

6. 6. The organic molecule of claim 1, comprising a structure of Formula II or Formula III: 【Transformation 3】 Chemical formula II 【Chemistry 4】 Chemical formula III.

7. R ａ are each independently selected from the group consisting of: hydrogen, 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 carbazolyl 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, triazinyl optionally substituted with one or more substituents as defined above, and N(Ph) ２ .

8. The organic molecule of any one of claims 1 to 7, wherein the second chemical moiety comprises a structure of formula Ib-3, a structure of formula Ib-4, or a structure of formula Ib-5: 【Transformation 5】 Chemical formula Ib-3 【Transformation 6】 Chemical formula Ib-4 【Transformation 7】 Chemical formula Ib-5 where: R ｂ are each independently selected from the group consisting of: 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, one or more substituents R ５ C optionally substituted with １ -C ４０ Alkyl, Here, one or more non-adjacent CH ２ The group is 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 optionally replaced by one or more substituents R ５ C optionally substituted with １ -C ４０ Alkoxy, Here, one or more non-adjacent CH ２ The group is 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 optionally replaced by one or more substituents R ５ C optionally substituted with １ -C ４０ thioalkoxy, Here, one or more non-adjacent CH ２ The group is 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 optionally replaced by one or more substituents R ５ C optionally substituted with ２ -C ４０ alkenyl, Here, one or more non-adjacent CH ２ The group is 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 optionally replaced by one or more substituents R ５ C optionally substituted with ２ -C ４０ Alkynyl, Here, one or more non-adjacent CH ２ The group is 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 optionally replaced by one or more substituents R ５ C optionally substituted with ６ -C ６０ aryl, and one or more substituents R ５ C optionally substituted with ３ -C ５７ Heteroaryl.

9. 9. The organic molecule of claim 1, comprising a structure of Formula IIa or Formula IIIa: 【Transformation 8】 Chemical formula IIa 【Chemistry 9】 Chemical formula IIIa where: R ｂ are each independently selected from the group consisting of: hydrogen, 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 and Ph, carbazolyl optionally substituted with one or more substituents selected from the group consisting of aryl, ... Me, ｉ Pr, ｔ Bu, C.N., C.F. ３ triazinyl optionally substituted with one or more substituents independently selected from the group consisting of: N(Ph) ２ .

10. Use of an organic molecule according to any one of claims 1 to 9 as a light emitter in an optoelectronic device.

11. The use of claim 10, wherein the optoelectronic device is selected from the group consisting of: - Organic Light Emitting Diode (OLED) - Light-emitting electrochemical cells -OLED sensor - Organic diode -Organic solar cells - Organic transistor - Organic field effect transistor - Organic laser - Down-conversion converter element.

12. A composition comprising: (a) an organic molecule according to any one of claims 1 to 9, in particular in the form of an emitter and / or in the form of a host; (b) an emitter material and / or a host material different from the organic molecule; and (c) optionally, a dye and / or a solvent.

13. The composition comprises an organic molecule according to any one of claims 1 to 9 or a composition according to claim 12, 1. An optoelectronic device having the form of a device selected from the group consisting of an organic light emitting diode (OLED), a light emitting electrochemical cell, an OLED sensor, an organic diode, an organic solar cell, an organic transistor, an organic field effect transistor, an organic laser, and a down conversion device.

14. -substrate, -anode, a cathode, and - comprises a light-emitting layer, the anode or the cathode is disposed on the substrate; 14. The optoelectronic device of claim 13, wherein the light-emitting layer is disposed between the anode and the cathode and comprises the organic molecule or the composition.

15. an organic molecule according to any one of claims 1 to 9 or a composition according to claim 12 is used, A method for fabricating an optoelectronic device, comprising processing the organic molecules by a vacuum evaporation method or processing the organic molecules from a solution.

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