Optoelectronic component, electronic device and electronic equipment

Abstract

The invention relates to an optoelectronic device, electronic equipment and electronic equipment. The optoelectronic device includes a first electrode, a second electrode facing the first electrode, and a photoactive layer between the first electrode and the second electrode, where the photoactive layer may include an acceptor satisfying Expression 1 and a donor having a maximum absorption wavelength of about 600 nm to about 750 nm, and the photoactive layer may satisfy Expression 2: Expression 13 eV < = EALUMO-EAHOMO < = 4 eV Expression 20.05 < = (EDLUMO-EALUMO) / (EDLUMO-EDHOMO) < = 0.5.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to and the benefit of Korean Patent Application No. 10-2023-0145423 filed in the Korean Intellectual Property Office on October 27, 2023, the entire contents of which are incorporated herein by reference. Technical Field

[0003] One or more embodiments of the present disclosure relate to optoelectronic devices, electronic devices, and electronic equipment. Background Art

[0004] An optoelectronic device (photoelectric device) is a device that converts light energy and / or light signals into electrical energy and / or electrical signals. Examples of optoelectronic devices are: (1) optical cells or solar cells that convert light energy into electrical energy; (2) optical detectors or optical sensors that detect light energy and convert light signals into electrical signals; and / or (3) the like.

[0005] Electronic devices including optoelectronic devices and light-emitting devices have been developed. Light emitted from the light-emitting device can be reflected from an object (e.g., a user's finger) in contact with the electronic device and then incident on the optoelectronic device. When the optoelectronic device detects incident light energy and converts the optical signal into an electrical signal, contact of the object with the electronic device can be identified. Summary of the invention

[0006] One or more aspects of the embodiments of the present disclosure relate to an optoelectronic device and an electronic device using the optoelectronic device, the optoelectronic device having excellent or suitable external quantum efficiency by enhancing or optimizing the energy relationship between a donor and an acceptor included in a photoactive layer that absorbs red light.

[0007] Additional aspects will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the presented embodiments of the disclosure.

[0008] According to one or more embodiments of the present disclosure, an optoelectronic device includes a first electrode, a second electrode facing the first electrode (e.g., opposite to the first electrode and facing the first electrode), and a photoactive layer between the first electrode and the second electrode, wherein the photoactive layer may include an acceptor satisfying Expression 1 and a donor having a maximum absorption wavelength of about 600 nanometers (nm) to about 750 nm, and the photoactive layer may satisfy Expression 2:

[0009] Expression 1

[0010] 3eV≤E A LUMO -E AHOMO ≤4eV

[0011] Expression 2

[0012] 0.05≤(E D LUMO -E A LUMO ) / (E D LUMO -E D HOMO )≤0.5

[0013] Among them, in expression 1 and expression 2,

[0014] E D LUMO represents the lowest unoccupied molecular orbital (LUMO) energy level of the donor,

[0015] E D HOMO represents the highest occupied molecular orbital (HOMO) energy level of the donor,

[0016] E A LUMO represents the LUMO level of the acceptor, and

[0017] E A HOMO represents the HOMO level of the receptor.

[0018] In one or more embodiments, the donor may satisfy Expression 3:

[0019] Expression 3

[0020] 1.0eV≤E D LUMO -E D HOMO ≤2.5eV

[0021] Among them, in expression 3,

[0022] E D LUMO and E D HOMO Each is the same as described in the present disclosure.

[0023] In one or more embodiments, the optoelectronic device may also satisfy Expression 4:

[0024] Expression 4

[0025] E A LUMO ≤E D LUMO

[0026] Among them, in expression 4,

[0027] E D LUMO and E A LUMO Each is the same as described in the present disclosure.

[0028] In one or more embodiments, the optoelectronic device may also satisfy Expression 5:

[0029] Expression 5

[0030] E A HOMO ≤E D HOMO

[0031] Among them, in expression 5,

[0032] E D HOMO and E A HOMO Each is the same as described in the present disclosure.

[0033] In one or more embodiments, the receptor may not include (eg, may exclude) (eg, any) fullerene-based compounds.

[0034] In one or more embodiments, the acceptor may not include (eg, may exclude) (eg, any) five-membered ring.

[0035] In one or more embodiments, the receptor may be transparent in the visible region (eg, having no optical absorption band in the wavelength range of about 380 nm to about 700 nm).

[0036] In one or more embodiments, the receptor may be represented by Formula 1:

[0037] Formula 1

[0038]

[0039] Wherein, the detailed description of Formula 1 is the same as described in the present disclosure.

[0040] In one or more embodiments, the receptor may be at least one selected from Compound C1 to Compound C17 described in the present disclosure.

[0041] In one or more embodiments, the maximum absorption wavelength of the donor may be about 630 nm to about 700 nm.

[0042] In one or more embodiments, the donor may not include (eg, may exclude) boron.

[0043] In one or more embodiments, the donor can be represented by any one selected from Formula 2 and Formula 3:

[0044] Formula 2

[0045]

[0046] Formula 3

[0047]

[0048] Formula 3-1

[0049]

[0050] Wherein, in Formula 3, Ar 1 may be a group represented by Formula 3-1, and

[0051] Formula 2, Formula 3, and Formula 3-1 are each the same as described in the present disclosure.

[0052] In one or more embodiments, the donor may be at least one selected from Compound A1 to Compound A32 and Compound B1 to Compound B50 described in the present disclosure.

[0053] In one or more embodiments, the photoactive layer may be formed by vacuum deposition.

[0054] In one or more embodiments, the photoactive layer may be a single layer.

[0055] In one or more embodiments, the optoelectronic device may further include a hole transport region between the first electrode and the photoactive layer and an electron transport region between the photoactive layer and the second electrode.

[0056] In one or more embodiments, the photoactive layer may include a first layer adjacent to the hole transport region and a second layer adjacent to the electron transport region, wherein the first layer may include a donor and the second layer may include an acceptor.

[0057] In one or more embodiments, the photoactive layer may further include a third layer between the first layer and the second layer, wherein the third layer may include a donor and an acceptor.

[0058] According to one or more embodiments of the present disclosure, an electronic device includes an optoelectronic device and a light emitting device, the light emitting device including an emission layer that does not overlap with a photoactive layer.

[0059] According to one or more embodiments of the present disclosure, an electronic equipment includes an electronic device, wherein:

[0060] The electronic equipment can be at least one selected from a flat panel display, a curved display, a computer monitor, a medical monitor, a television, a billboard, an indoor or outdoor light and / or a light for signaling, a head-up display, a fully transparent or partially transparent display, a flexible display, a rollable display, a foldable display, a stretchable display, a laser printer, a phone such as a tablet phone or a portable phone, a tablet personal computer, a personal digital assistant (PDA), a wearable device, a laptop computer, a digital camera, a video camera, a viewfinder, a microdisplay, a three-dimensional (3D) display, a virtual reality or augmented reality display, a vehicle, a video wall with multiple displays stitched together, a theater or stadium screen, a light therapy device and a sign. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] The accompanying drawings are included to provide a further understanding of the present disclosure and are incorporated into and constitute a part of the present disclosure. The accompanying drawings illustrate embodiments of the present disclosure and, together with the description, are used to explain the principles of the present disclosure. The above and other aspects, features and advantages of certain embodiments of the present disclosure will become more apparent through the following description in conjunction with the accompanying drawings, in which:

[0062] Figure 1 is a schematic diagram of an electronic device according to one or more embodiments of the present disclosure;

[0063] Figure 2 is a schematic diagram of an electronic device according to one or more embodiments of the present disclosure;

[0064] Figure 3 According to one or more embodiments of the present disclosure, Figure 1 A schematic diagram of a light emitting device in an electronic device;

[0065] Figure 4 According to one or more embodiments of the present disclosure, Figure 1 Schematic diagram of optoelectronic devices in electronic devices;

[0066] Figure 5 is a schematic diagram of an optoelectronic device according to one or more embodiments of the present disclosure;

[0067] Figure 6 is a schematic diagram of an optoelectronic device according to one or more embodiments of the present disclosure;

[0068] Figure 7 is a schematic perspective view of an electronic device including an optoelectronic device according to one or more embodiments of the present disclosure;

[0069] Figure 8is a diagram schematically showing the exterior of a vehicle as electronic equipment including an optoelectronic device according to one or more embodiments of the present disclosure; and

[0070] Fig.9A , Fig. 9B and Fig. 9C Each schematically shows one or more embodiments of the present disclosure. Figure 8 Diagram of the interior of a vehicle. DETAILED DESCRIPTION

[0071] Now will refer to embodiment in more detail, the example of embodiment is shown in the accompanying drawings, wherein, throughout the present disclosure, the same reference numerals represent the same elements, and for the sake of brevity, its repeated description may not be provided. In this regard, the embodiments of the present disclosure may have different forms, and should not be construed as being limited to the description set forth herein. Therefore, the embodiments of the present disclosure are described only by reference to the accompanying drawings to explain the aspects of the present disclosure. As used herein, the term "and / or" or "or" may include any combination and all combinations in one or more related listed items. Throughout the disclosure, when the statements such as "at least one of ... ", "one of ... " and "selected from ... " are located after a column of elements, the statement modifies the entire column of elements, rather than modifying the individual elements in the column. For example, "at least one of a, b, and c", "at least one selected from a, b, and c", "at least one selected from a to c", etc. may represent only a, only b, only c, both a and b (e.g., simultaneously), both a and c (e.g., simultaneously), both b and c (e.g., simultaneously), all of a, b, and c, or variations thereof. The " / " used herein may be interpreted as "and" or "or" depending on the circumstances.

[0072] Figure 1 is a schematic diagram of an electronic device according to one or more embodiments of the present disclosure.

[0073] According to one or more aspects of an embodiment of the present disclosure, an electronic device may include an optoelectronic device 30 and a light emitting device 10. Light L3 from among the lights L1, L2, and L3 emitted from the light emitting device 10 may be incident on an object 600 outside the electronic device. For example, the object 600 may be a finger of a user of the electronic device. Light L3' reflected from the object 600 may be incident on the optoelectronic device 30. Therefore, the optoelectronic device 30 may be used as an optical sensor, and the optoelectronic device 30 and the light emitting device 10 will be described in more detail later in the present disclosure.

[0074] The electronic device may be a display device, a light emitting device, an authentication device, etc. The authentication device may be, for example, a biometric authentication device that authenticates an individual by utilizing biometric information of a living body (e.g., fingertips and / or pupils, etc.). For example, the electronic device may emit light and collect biometric information.

[0075] The electronic device can be applied to one or more displays, light sources, lighting, personal computers (e.g., mobile personal computers), mobile phones, digital cameras, electronic notepads, electronic dictionaries, electronic game consoles, medical devices (e.g., electronic thermometers, blood pressure monitors, blood glucose meters, pulse measurement devices, pulse wave measurement devices, electrocardiogram displays, ultrasonic diagnostic equipment, or endoscope displays), fish finders, one or more suitable measuring instruments, meters (e.g., meters for vehicles, aircraft and ships), projectors, sensors (e.g., sensors for vehicles, sensors for homes, fingerprint recognition sensors, or blood pressure recognition sensors) and / or solar cells, etc.

[0076] Reference Figure 1 In one or more embodiments, the electronic device may further include a substrate 100, a thin film transistor TFT arranged under the first electrode 110, etc. The electronic device may further include a pixel defining film 290 separating the first electrode 110, and / or the electronic device may further include a coating layer 170 on the second electrode 150, an encapsulation portion 300, etc.

[0077] The substrate 100 may be a flexible substrate, a glass substrate, or a metal substrate. The buffer layer 210 may be on the substrate 100. The buffer layer 210 may prevent or reduce impurities from penetrating through the substrate 100, and may provide a flat surface on the substrate 100.

[0078] The thin film transistor TFT may be on the buffer layer 210. The thin film transistor TFT may include an active layer 220, a gate electrode 240, a source electrode 260, and a drain electrode 270.

[0079] The active layer 220 may include an inorganic semiconductor (including, for example, silicon or polysilicon), an organic semiconductor, or an oxide semiconductor, and may include a source region, a drain region, and a channel region.

[0080] A gate insulating film 230 for insulating the active layer 220 from the gate electrode 240 may be on the active layer 220 , and the gate electrode 240 may be on the gate insulating film 230 .

[0081] Interlayer insulating film 250 may be on gate electrode 240 . Interlayer insulating film 250 may be located between gate electrode 240 and source electrode 260 to insulate gate electrode 240 from source electrode 260 and between gate electrode 240 and drain electrode 270 to insulate gate electrode 240 from drain electrode 270 .

[0082] The source electrode 260 and the drain electrode 270 may be on the interlayer insulating film 250. The interlayer insulating film 250 and the gate insulating film 230 may be formed to expose the source region and the drain region of the active layer 220, and the source electrode 260 and the drain electrode 270 may be arranged to contact the exposed portions of the source region and the drain region of the active layer 220.

[0083] The thin film transistor TFT may be electrically connected to each of the light emitting device 10 and the optoelectronic device 30 to drive the light emitting device 10 or transmit an electrical signal generated by light absorbed by the optoelectronic device 30, and may be covered and protected by the passivation layer 280. The passivation layer 280 may include an inorganic insulating film, an organic insulating film, or any combination thereof. The light emitting device 10 and the optoelectronic device 30 may be arranged on the passivation layer 280. The light emitting device 10 may include a first electrode 110, a hole transport region 120, an emission layer 130, an electron transport region 140, and a second electrode 150. The optoelectronic device 30 may include a first electrode 110, a hole transport region 120, a photoactive layer 135, an electron transport region 140, and a second electrode 150.

[0084] The first electrode 110 may be disposed on the passivation layer 280. The passivation layer 280 may be positioned to expose a portion of the source electrode 260 and a portion of the drain electrode 270 without completely covering the source electrode 260 and the drain electrode 270, and the first electrode 110 may be positioned to be connected to (for example, at Figure 1 The exposed portion of the source electrode 260 of the optoelectronic device 30 at the right side of the source electrode 260 or (for example, in Figure 1 ) an exposed portion of the drain electrode 270 in the light emitting device 10 at the left side.

[0085] A pixel defining film 290 including an insulating material may be partially disposed on the first electrode 110. The pixel defining film 290 may expose a region of the first electrode 110, and the emission layer 130 and the photoactive layer 135 may each be separately formed in the exposed region of the corresponding first electrode 110. The pixel defining film 290 may be a polyimide film or a polyacrylic organic film.

[0086] The second electrode 150 may be on the emission layer 130, and the cladding layer 170 may be additionally formed on the second electrode 150. The cladding layer 170 may be formed to cover the second electrode 150.

[0087] The encapsulation part 300 may be on the cladding layer 170. The encapsulation part 300 may be arranged on the light emitting device 10 and the optoelectronic device 30 to protect the light emitting device 10 and the optoelectronic device 30 from moisture and / or oxygen. The encapsulation part 300 may include: an inorganic film including silicon nitride (SiN x ), silicon oxide (SiO x ), indium tin oxide, indium zinc oxide, or any combination thereof; organic films including polyethylene terephthalate, polyethylene naphthalate, polycarbonate, polyimide, polyethylene sulfonate, polyoxymethylene, polyarylate, hexamethyldisiloxane, acrylic resins (e.g., polymethyl methacrylate and / or polyacrylic acid, etc.), epoxy resins (e.g., aliphatic glycidyl ether (AGE), etc.), or any combination thereof; or any combination of inorganic films and organic films.

[0088] Figure 2 is a schematic diagram of an electronic device according to one or more embodiments of the present disclosure.

[0089] In addition to the light shielding pattern 500 and the functional area 400 being additionally arranged on the encapsulation portion 300, Figure 2 Electronic equipment and Figure 1 The electronic device of the present invention is basically the same. In the functional area 400, i) a color filter, ii) a color conversion layer, or iii) a combination of a color filter and a color conversion layer may be provided and arranged. In one or more embodiments, in addition to the color filter and / or the color conversion layer, various functional layers may be provided and arranged on the encapsulation portion 300 according to the use of the electronic device. Examples of functional layers may include a touch screen layer and / or a polarization layer, etc. The touch screen layer may be a pressure-sensitive touch screen layer, a capacitive touch screen layer, or an infrared touch screen layer.

[0090] Figure 3 According to one or more embodiments of the present disclosure, Figure 1 Schematic diagram of a light emitting device 10 in an electronic device.

[0091] Reference Figure 3 The light emitting device 10 may include a first electrode 110, a second electrode 150 facing the first electrode 110, an emission layer 130 between the first electrode 110 and the second electrode 150, a hole transport region 120 between the first electrode 110 and the emission layer 130, and an electron transport region 140 between the emission layer 130 and the second electrode 150.

[0092] Figure 4 According to one or more embodiments of the present disclosure, Figure 1 Schematic diagram of an optoelectronic device 30 in an electronic device.

[0093] Reference Figure 4The optoelectronic device 30 may include a first electrode 110, a second electrode 150 facing the first electrode 110, a photoactive layer 135 between the first electrode 110 and the second electrode 150, a hole transport region 120 between the first electrode 110 and the photoactive layer 135, and an electron transport region 140 between the photoactive layer 135 and the second electrode 150.

[0094] Reference Figures 1 to 4 In one or more embodiments, the first electrode 110 of the light-emitting device 10 and the first electrode 110 of the optoelectronic device 30 may include the same material and may be formed substantially concurrently (e.g., simultaneously). The hole transport region 120 of the light-emitting device 10 and the hole transport region 120 of the optoelectronic device 30 may include the same material and may be formed substantially concurrently (e.g., simultaneously), and the hole transport region 120 of the light-emitting device 10 and the hole transport region 120 of the optoelectronic device 30 may substantially have one body. The electron transport region 140 of the light-emitting device 10 and the electron transport region 140 of the optoelectronic device 30 may include the same material and may be formed substantially concurrently (e.g., simultaneously), and the electron transport region 140 of the light-emitting device 10 and the electron transport region 140 of the optoelectronic device 30 may substantially have one body. The second electrode 150 of the light emitting device 10 and the second electrode 150 of the optoelectronic device 30 may include the same material, may be formed substantially concurrently (eg, simultaneously), and may substantially have one body.

[0095] According to one or more embodiments of the present disclosure, the optoelectronic device 30 may include: a first electrode 110, a second electrode 150 facing the first electrode 110 (e.g., opposite to the first electrode 110 and facing the first electrode 110), and a photoactive layer 135 between the first electrode 110 and the second electrode 150, wherein the photoactive layer 135 may include an acceptor satisfying Expression 1 and a donor having a maximum absorption wavelength of about 600 nm to about 750 nm, and the optoelectronic device 30 (specifically, the photoactive layer 135) may satisfy Expression 2:

[0096] Expression 1

[0097] 3eV≤E A LUMO -E A HOMO ≤4eV

[0098] Expression 2

[0099] 0.05≤(E D LUMO -E ALUMO ) / (E D LUMO -E D HOMO )≤0.5

[0100] Among them, in expression 1 and expression 2,

[0101] E D LUMO represents the LUMO level of the donor,

[0102] E D HOMO represents the HOMO level of the donor,

[0103] E A LUMO represents the LUMO level of the acceptor, and

[0104] E A HOMO represents the HOMO level of the receptor.

[0105] In one or more embodiments, the optoelectronic device may also satisfy Expression 4:

[0106] Expression 4

[0107] E A LUMO ≤E D LUMO

[0108] Among them, in expression 4,

[0109] E D LUMO and E A LUMO Each is the same as described in the present disclosure.

[0110] In one or more embodiments, the optoelectronic device may also satisfy Expression 5:

[0111] Expression 5

[0112] E A HOMO ≤E D HOMO

[0113] Among them, in expression 5,

[0114] E D HOMO and E A HOMO Each is the same as described in the present disclosure.

[0115] For example, in one or more embodiments, “E D HOMO ≤E A LUMO ≤E D LUMO In one or more embodiments, the "E A HOMO ≤E D HOMO ≤E A LUMO ≤E D LUMO ”.

[0116] E A HOMO 、E D HOMO 、E A LUMO and E D LUMO can each have a negative value.

[0117] In one or more embodiments, the amount of the donor may be about 10 parts by weight to about 50 parts by weight based on 100 parts by weight of the photoactive layer 135. For example, in some embodiments, the amount of the donor may be about 30 parts by weight to about 50 parts by weight, about 40 parts by weight to about 50 parts by weight, or 45 parts by weight based on 100 parts by weight of the photoactive layer 135.

[0118] In one or more embodiments, the amount of the acceptor may be about 50 parts by weight to about 90 parts by weight based on 100 parts by weight of the photoactive layer 135. For example, in some embodiments, the amount of the acceptor may be about 50 parts by weight to about 70 parts by weight, about 50 parts by weight to about 60 parts by weight, or 55 parts by weight based on 100 parts by weight of the photoactive layer 135.

[0119] In one or more embodiments, the thickness of the photoactive layer 135 may be about 40 nm to about 50 nm.

[0120] Receptors

[0121] In one or more embodiments, the receptor may satisfy Expression 1:

[0122] Expression 1

[0123] 3eV≤E A LUMO -E A HOMO ≤4eV

[0124] Among them, in expression 1,

[0125] E ALUMO and E A HOMO Each is the same as described in the present disclosure.

[0126] In one or more embodiments, the receptor may not include (e.g., may exclude) (e.g., any) fullerene compounds. For example, the receptor may not include (e.g., may exclude) fullerene 60 and / or fullerene 70:

[0127]

[0128] In one or more embodiments, the acceptor may not include (eg, may exclude) (eg, any) five-membered ring.

[0129] In one or more embodiments, the receptor may be transparent in the visible region (eg, having no optical absorption band in the wavelength range of about 380 nm to about 700 nm).

[0130] In one or more embodiments, the receptor may be represented by Formula 1:

[0131] Formula 1

[0132]

[0133] Among them, in formula 1,

[0134] X 1 To X 4 can be independently O, S or Se,

[0135] Z 1 Can be O or N(R 5 ),

[0136] Z 2 Can be O or N(R 6 ),

[0137] R 1 To R 6 can be each independently hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Alkyl, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Alkenyl, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Alkynyl, unsubstituted or substituted with at least one R 10a Substituted C 1 -C60 Alkoxy, unsubstituted or substituted with at least one R 10a Substituted C 3 -C 60 Carbocyclic group, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Heterocyclic group, unsubstituted or substituted with at least one R 10a Substituted C 6 -C 60 Aryloxy, unsubstituted or substituted with at least one R 10a Substituted C 6 -C 60 Arylthio, unsubstituted or substituted with at least one R 10a Substituted C 7 -C 60 Arylalkyl, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Heteroaralkyl, -C(Q 1 )(Q 2 )(Q 3 )、-Si(Q 1 )(Q 2 )(Q 3 )、-N(Q 1 )(Q 2 )、-B(Q 1 )(Q 2 )、-C(=O)(Q 1 )、-S(=O) 2 (Q 1 ), or -P(=O)(Q 1 )(Q 2 ),

[0138] R 10a It can be:

[0139] deuterium, -F, -Cl, -Br, -I, hydroxy, cyano or nitro;

[0140] C 1 -C 60 Alkyl, C 2 -C 60 Alkenyl, C 2 -C 60 Alkynyl or C 1 -C 60 Alkoxy, each unsubstituted or substituted with deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, C 3 -C 60 Carbocyclic group, C 1 -C 60Heterocyclic group, C 6 -C 60 Aryloxy, C 6 -C 60 Arylthio, C 7 -C 60 Aralkyl, C 2 -C 60 Heteroaralkyl, -Si(Q 11 )(Q 12 )(Q 13 )、-N(Q 11 )(Q 12 )、-B(Q 11 )(Q 12 )、-C(=O)(Q 11 )、-S(=O) 2 (Q 11 )、-P(=O)(Q 11 )(Q 12 ) or any combination thereof;

[0141] C 3 -C 60 Carbocyclic group, C 1 -C 60 Heterocyclic group, C 6 -C 60 Aryloxy, C 6 -C 60 Arylthio, C 7 -C 60 Arylalkyl or C 2 -C 60 heteroarylalkyl, each unsubstituted or substituted with deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, C 1 -C 60 Alkyl, C 2 -C 60 Alkenyl, C 2 -C 60 Alkynyl, C 1 -C 60 Alkoxy, C 3 -C 60 Carbocyclic group, C 1 -C 60 Heterocyclic group, C 6 -C 60 Aryloxy, C 6 -C 60 Arylthio, C 7 -C 60 Aralkyl, C 2 -C 60 Heteroaralkyl, -Si(Q 21 )(Q 22 )(Q 23)、-N(Q 21 )(Q 22 )、-B(Q 21 )(Q 22 )、-C(=O)(Q 21 )、-S(=O) 2 (Q 21 )、-P(=O)(Q 21 )(Q 22 ) or any combination thereof; or

[0142] -Si(Q 31 )(Q 32 )(Q 33 )、-N(Q 31 )(Q 32 )、-B(Q 31 )(Q 32 )、-C(=O)(Q 31 )、-S(=O) 2 (Q 31 ) or -P(=O)(Q 31 )(Q 32 ),and

[0143] Q 1 To Q 3 , Q 11 To Q 13 , Q 21 To Q 23 and Q 31 To Q 33 Can be independently:

[0144] Hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C 1 -C 60 Alkyl, C 2 -C 60 Alkenyl, C 2 -C 60 Alkynyl or C 1 -C 60 Alkoxy; or

[0145] C 3 -C 60 Carbocyclic group, C 1 -C 60 Heterocyclic group, C 7 -C 60 Arylalkyl or C 2 -C 60 heteroarylalkyl, each unsubstituted or substituted with deuterium, -F, cyano, C 1 -C 60 Alkyl, C 1 -C 60The present invention is substituted with alkoxy, phenyl, biphenyl or any combination thereof.

[0146] In one or more embodiments, in Formula 1, selected from X 1 To X 4 At least one of them may be O. X 1 To X 4 May be the same as or different from each other.

[0147] In one or more embodiments, in Formula 1, Z 1 It can be N(R 5 ), Z 2 It can be N(R 6 ), and R 1 To R 6 Can be independently selected from:

[0148] Hydrogen, deuterium, -F, -Cl or cyano;

[0149] C 1 -C 10 Alkyl, unsubstituted or substituted with deuterium, -F, -Cl, cyano, or any combination thereof;

[0150] C 6 -C 10 Aryl, unsubstituted or deuterated, -F, -Cl, cyano, -CF 3 or any combination thereof; and

[0151] C 6 -C 10 Heteroaryl, unsubstituted or deuterated, -F, -Cl, cyano, -CF 3 or any combination thereof.

[0152] In one or more embodiments, the HOMO energy level of the acceptor may be about -8 eV to about -6 eV.

[0153] In one or more embodiments, the LUMO energy level of the acceptor may be about -5 eV to about -3 eV.

[0154] In one or more embodiments, the receptor may be at least one selected from Compound C1 to Compound C17, but the embodiments of the present disclosure are not limited thereto:

[0155]

[0156] Donor

[0157] The donor may have a maximum absorption wavelength of about 600 nm to about 750 nm. In one or more embodiments, the maximum absorption wavelength of the donor may be about 600 nm to about 700 nm. For example, in some embodiments, the maximum absorption wavelength of the donor may be greater than or equal to 600 nm and less than or equal to 700 nm. In one or more embodiments, the maximum absorption wavelength of the donor may be about 610 nm to about 700 nm, about 620 nm to about 680 nm, about 630 nm to about 660 nm, or about 630 nm to about 650 nm. For example, the donor may absorb red light to the greatest extent and may be significantly different from compounds that absorb green light to the greatest extent. For example, the donor may be significantly different from SubPC:

[0158]

[0159] In one or more embodiments, the donor may not include (e.g., may exclude) boron. For example, the donor may not include (e.g., may exclude) (e.g., any) subnaphthalocyanine-based compound. For example, the donor may not include (e.g., may exclude) SubNC:

[0160]

[0161] In one or more embodiments, the donor may satisfy Expression 3:

[0162] Expression 3

[0163] 1.0eV≤E D LUMO –E D HOMO ≤2.5eV

[0164] Among them, in expression 3,

[0165] E D LUMO and E D HOMO Each is the same as described in the present disclosure.

[0166] In one or more embodiments, the donor can be represented by any one selected from Formula 2 and Formula 3:

[0167] Formula 2

[0168]

[0169] Formula 3

[0170]

[0171] Formula 3-1

[0172]

[0173] Among them, in Formula 2, Formula 3 and Formula 3-1,

[0174] L 1 may be a single bond, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 20 Alkylene, unsubstituted or substituted with at least one R 10a Substituted C 3 -C 60 Carbocyclic group, either unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Heterocyclic group,

[0175] a1 can be an integer from 1 to 3,

[0176] Ar 1 It may be a group represented by formula 3-1,

[0177] Ar 2 and Ar 3 may be each independently unsubstituted or substituted with at least one R 10a Substituted C 3 -C 60 The carbocyclic group is either unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Heterocyclic group,

[0178] X 11 To X 13 can be independently O, S or Se,

[0179] X 21 It can be N(R 21 ), O, S or Se,

[0180] X 22 It can be N(R 22 ), O, S or Se,

[0181] X 23 It can be C(R 23a )(R 23b )、N(R 23 ), O, S or Se,

[0182] Y 1 Can be N or C (R 24 ), Y 2 Can be N or C (R 25 ), Y3 Can be N or C (R 26 ), Y 4 Can be N or C (R 27 ), Y 5 Can be N or C (R 28 ), Y 6 Can be N or C (R 29 ),

[0183] R 11 To R 18 , R 21 To R 29 , R 23a and R 23b can be each independently hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Alkyl, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Alkenyl, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Alkynyl, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Alkoxy, unsubstituted or substituted with at least one R 10a Substituted C 3 -C 60 Carbocyclic group, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Heterocyclic group, unsubstituted or substituted with at least one R 10a Substituted C 6 -C 60 Aryloxy, unsubstituted or substituted with at least one R 10a Substituted C 6 -C 60 Arylthio, unsubstituted or substituted with at least one R 10a Substituted C 7 -C 60 Arylalkyl, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Heteroaralkyl, -C(Q 1 )(Q 2 )(Q 3 )、-Si(Q 1 )(Q 2 )(Q3 )、-N(Q 1 )(Q 2 )、-B(Q 1 )(Q 2 )、-C(=O)(Q 1 )、-S(=O) 2 (Q 1 ), or -P(=O)(Q 1 )(Q 2 ),

[0184] b1 can be an integer from 0 to 4,

[0185] R 10a It can be:

[0186] deuterium, -F, -Cl, -Br, -I, hydroxy, cyano or nitro;

[0187] C 1 -C 60 Alkyl, C 2 -C 60 Alkenyl, C 2 -C 60 Alkynyl or C 1 -C 60 Alkoxy, each unsubstituted or substituted with deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, C 3 -C 60 Carbocyclic group, C 1 -C 60 Heterocyclic group, C 6 -C 60 Aryloxy, C 6 -C 60 Arylthio, C 7 -C 60 Aralkyl, C 2 -C 60 Heteroaralkyl, -Si(Q 11 )(Q 12 )(Q 13 )、-N(Q 11 )(Q 12 )、-B(Q 11 )(Q 12 )、-C(=O)(Q 11 )、-S(=O) 2 (Q 11 )、-P(=O)(Q 11 )(Q 12 ) or any combination thereof;

[0188] C 3 -C 60 Carbocyclic group, C1 -C 60 Heterocyclic group, C 6 -C 60 Aryloxy, C 6 -C 60 Arylthio, C 7 -C 60 Arylalkyl or C 2 -C 60 heteroarylalkyl, each unsubstituted or substituted with deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, C 1 -C 60 Alkyl, C 2 -C 60 Alkenyl, C 2 -C 60 Alkynyl, C 1 -C 60 Alkoxy, C 3 -C 60 Carbocyclic group, C 1 -C 60 Heterocyclic group, C 6 -C 60 Aryloxy, C 6 -C 60 Arylthio, C 7 -C 60 Aralkyl, C 2 -C 60 Heteroaralkyl, -Si(Q 21 )(Q 22 )(Q 23 )、-N(Q 21 )(Q 22 )、-B(Q 21 )(Q 22 )、-C(=O)(Q 21 )、-S(=O) 2 (Q 21 )、-P(=O)(Q 21 )(Q 22 ) or any combination thereof; or

[0189] -Si(Q 31 )(Q 32 )(Q 33 )、-N(Q 31 )(Q 32 )、-B(Q 31 )(Q 32 )、-C(=O)(Q 31 )、-S(=O) 2 (Q 31 ) or -P(=O)(Q 31 )(Q 32 ),

[0190] Q 1 To Q 3 , Q 11 To Q 13 , Q 21 To Q 23 and Q 31 To Q 33 Can be independently:

[0191] Hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C 1 -C 60 Alkyl, C 2 -C 60 Alkenyl, C 2 -C 60 Alkynyl or C 1 -C 60 Alkoxy; or

[0192] C 3 -C 60 Carbocyclic group, C 1 -C 60 Heterocyclic group, C 7 -C 60 Arylalkyl or C 2 -C 60 heteroarylalkyl, each unsubstituted or substituted with deuterium, -F, cyano, C 1 -C 60 Alkyl, C 1 -C 60 substituted with alkoxy, phenyl, biphenyl or any combination thereof, and

[0193] *' and *" each indicate a binding site to an adjacent atom.

[0194] In one or more embodiments, in Formula 2, X 11 To X 13 Can be the same or different from each other. In some embodiments, selected from X 11 To X 13 At least two of them may be identical to each other.

[0195] In one or more embodiments, in Formula 2, R 12 and R 13 Can be independently selected from:

[0196] Hydrogen, deuterium, -F, -Cl, cyano, and

[0197] C 1 -C 10 Alkyl, unsubstituted or substituted with deuterium, -F, -Cl, cyano or any combination thereof.

[0198] In one or more embodiments, in Formula 2, L 1 Can be a single bond. For example, in some embodiments, -(L 1 ) a1 - can be a single bond.

[0199] In one or more embodiments, in Formula 2, R 17 may be hydrogen, deuterium or unsubstituted or replaced by at least one R 10a Substituted C 1 -C 60 Alkyl. C 1 -C 60 The alkyl group may be a straight chain or branched chain group.

[0200] In one or more embodiments, in Formula 3, X 21 and X 22 Can be identical to each other.

[0201] In formula 3, Ar 1 It may be a group represented by Formula 3-1. In Formula 3-1, Ar 2 and Ar 3 may be each independently unsubstituted or substituted with at least one R 10a Substituted C 3 -C 10 Cycloalkyl, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 10 Heterocycloalkyl, unsubstituted or substituted with at least one R 10a Substituted C 3 -C 10 Cycloalkenyl, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 10 Heterocycloalkenyl, unsubstituted or substituted with at least one R 10a Substituted C 6 -C 60 Aryl, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Heteroaryl. For example, in one or more embodiments, the moiety (i.e., group) represented by Formula 3-1 can be a fused ring in which three monocyclic rings are fused. Therefore, the moiety represented by Formula 3-1 can be significantly different from a fused ring in which two, four, or five monocyclic rings are fused.

[0202] In one or more embodiments, in Formula 3-1, Ar 2 and Ar 3 may be each independently unsubstituted or substituted with at least one R10a Substituted cyclopentadienyl, unsubstituted or substituted with at least one R 10a Substituted phenyl, unsubstituted or replaced by at least one R 10a substituted pyrimidinyl, unsubstituted or substituted with at least one R 10a substituted thienyl, unsubstituted or substituted with at least one R 10a substituted pyrrolyl, or unsubstituted or substituted with at least one R 10a Substituted furanyl.

[0203] In one or more embodiments, the moiety represented by Formula 3-1 may be one of the moieties represented by Formulae 3-1A to 3-1I:

[0204] Formula 3-1A

[0205]

[0206] Formula 3-1B

[0207]

[0208] Formula 3-1C

[0209]

[0210] Formula 3-1D

[0211]

[0212] Formula 3-1E

[0213]

[0214] Formula 3-1F

[0215]

[0216] Formula 3-1G

[0217]

[0218] Formula 3-1H

[0219]

[0220] Formula 3-1I

[0221]

[0222] Wherein, in Formulae 3-1A to 3-1I,

[0223] X 23 , R 10a , *' and *" are each the same as described in the present disclosure, and

[0224] e1 can be 0 or 1.

[0225] e3 can be an integer from 0 to 3.

[0226] In one or more embodiments, in Formulas 3-1 and 3-1A to 3-1I, X 23 It can be C(R 23a )(R 23b ) or N(R 23 ),and

[0227] R 23 , R 23a and R 23b Can be independently selected from:

[0228] hydrogen; deuterium; -F; -Cl; cyano; and

[0229] C 1 -C 10 Alkyl, C 6 -C 60 Aryl and C 1 -C 60 Heteroaryl, each unsubstituted or substituted with deuterium, -F, -Cl, cyano or any combination thereof.

[0230] In one or more embodiments, in Formula 3, X 21 It can be N(R 21 ) or S, X 22 It can be N(R 22 ) or S, and

[0231] R 21 and R 22 Can be independently selected from:

[0232] hydrogen; deuterium; -F; -Cl; cyano; and

[0233] C 1 -C 10 Alkyl, C 6 -C 60 Aryl and C 1 -C 60 Heteroaryl, each unsubstituted or substituted with deuterium, -F, -Cl, cyano or any combination thereof.

[0234] In one or more embodiments, in Formula 3, Y 1 To Y 3 At least two of them may be N and are selected from Y 4 To Y 6 At least two of them can be N.

[0235] In one or more embodiments, in Formula 3, Y 1 It can be C(R 24 ), Y 2 Can be N or C (R 25 ), Y 3 Can be N or C (R 26 ), Y 4 Can be N or C (R 27 ), Y 5 Can be N or C (R 28 ), Y 6 It can be C(R 29 ),and

[0236] R 24 To R 29 Can be independently selected from:

[0237] hydrogen, deuterium, -F, -Cl, -Br, -I, and cyano;

[0238] C 1 -C 10 Alkyl, unsubstituted or substituted with deuterium, -F, -Cl, -Br, -I, cyano, or any combination thereof; and

[0239] C 6 -C 10 Aryl, unsubstituted or substituted with deuterium, -F, -Cl, -Br, -I, cyano or any combination thereof.

[0240] In an embodiment, selected from R 24 To R 29 At least one of them can be selected from:

[0241] hydrogen, deuterium, -F, and cyano;

[0242] C 1 -C 10 alkyl, unsubstituted or substituted with deuterium, -F, cyano or any combination thereof; and C 6 -C 10 Aryl, unsubstituted or substituted with deuterium, -F, cyano or any combination thereof.

[0243] In one or more embodiments, the HOMO energy level of the donor may be about -6 eV to about -5 eV.

[0244] In one or more embodiments, the LUMO energy level of the donor may be about -4 eV to about -3 eV.

[0245] In one or more embodiments, the donor may be at least one selected from Compound A1 to Compound A32 and Compound B1 to Compound B50, but the embodiments of the present disclosure are not limited thereto:

[0246]

[0247]

[0248]

[0249]

[0250]

[0251]

[0252]

[0253] By including its E A LUMO -E A HOMO The acceptor having a value in the range of about 3 eV to about 4 eV can easily adjust the energy level between the acceptor and the donor absorbing red light and can ensure processability.

[0254] By adding E D LUMO Adjusted to be greater than or equal to E A LUMO , can improve the charge transport characteristics of optoelectronic devices. D LUMO -E A LUMO ) / (E D LUMO -E D HOMO ) is about 0.05 or more, the excitons generated at the donor can be easily transferred to the acceptor. Therefore, the charge transport characteristics of the optoelectronic device can be enhanced.

[0255] When(E D LUMO -E A LUMO ) / (E D LUMO -E D HOMO ) is about 0.5 or less, the holes of the donor and the electrons of the acceptor can recombine to easily form excitons. Therefore, the exciton generation characteristics of the optoelectronic device can be improved. A LUMO Adjusted to be greater than or equal to ED HOMO , which can enhance the exciton generation properties of optoelectronic devices.

[0256] Therefore, according to one or more embodiments of the present disclosure, conditions for an acceptor and a relationship between a donor and an acceptor may be provided as a criterion for selecting an acceptor suitable for use with a donor that absorbs red light to the greatest extent.

[0257] First electrode 110

[0258] In one or more embodiments, the substrate 100 may be additionally provided and arranged below the first electrode 110 (e.g., under the first electrode 110) or above the second electrode 150 (e.g., on the second electrode 150). In some embodiments, a glass substrate or a plastic substrate may be used as the substrate 100. In some embodiments, the substrate 100 may be a flexible substrate. For example, the substrate 100 may include a plastic having excellent or suitable heat resistance and durability, such as polyimide, polyethylene terephthalate (PET), polycarbonate, polyethylene naphthalate, polyarylate (PAR), polyetherimide, or any combination thereof.

[0259] The first electrode 110 may be formed by depositing or sputtering a material for forming the first electrode 110 on the substrate 100. When the first electrode 110 is an anode, the material for forming the first electrode 110 may be a high work function material to facilitate injection of holes.

[0260] The first electrode 110 may be a reflective electrode, a semi-transmissive electrode, or a transmissive electrode. In one or more embodiments, when the first electrode 110 is a transmissive electrode, the material used to form the first electrode 110 may include indium tin oxide (ITO), indium zinc oxide (IZO), tin oxide (SnO 2 ), zinc oxide (ZnO), or any combination thereof. In one or more embodiments, when the first electrode 110 is a semi-transmissive electrode or a reflective electrode, the material used to form the first electrode 110 may include magnesium (Mg), silver (Ag), aluminum (Al), aluminum-lithium (Al-Li), calcium (Ca), magnesium-indium (Mg-In), magnesium-silver (Mg-Ag), or any combination thereof.

[0261] The first electrode 110 may have a single-layer structure including (eg, consisting of) a single layer or a multi-layer structure including a plurality of layers. For example, in some embodiments, the first electrode 110 may have a triple-layer structure of ITO / Ag / ITO.

[0262] Hole transport region 120

[0263] The hole transport region 120 may have: i) a single-layer structure including a single layer including a single material (e.g., consisting of a single layer including a single material), ii) a single-layer structure including a single layer including a plurality of materials different from each other (e.g., consisting of a single layer including a plurality of materials different from each other), or iii) a multi-layer structure including a plurality of layers including a plurality of different materials different from each other (e.g., consisting of a plurality of layers including a plurality of different materials different from each other).

[0264] The hole transport region 120 may include a hole injection layer, a hole transport layer, an emission assisting layer, an electron blocking layer, or any combination thereof.

[0265] For example, in one or more embodiments, the hole transport region 120 may have a multi-layer structure, the multi-layer structure including a hole injection layer / hole transport layer structure, a hole injection layer / hole transport layer / emission assisting layer structure, a hole injection layer / emission assisting layer structure, a hole transport layer / emission assisting layer structure, or a hole injection layer / hole transport layer / emission assisting layer structure, wherein the constituent layers of each structure are stacked in sequence from the first electrode 110 in the order stated.

[0266] In one or more embodiments, the hole transport region 120 may include a compound represented by Formula 201, a compound represented by Formula 202, or any combination thereof:

[0267] Formula 201

[0268]

[0269] Formula 202

[0270]

[0271] Among them, in equation 201 and equation 202,

[0272] L 201 To L 204 may be each independently unsubstituted or substituted with at least one R 10a Substituted C 3 -C 60 The carbocyclic group is either unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Heterocyclic group,

[0273] L 205 Can be *-O-*', *-S-*', *-N(Q 201 )-*', unsubstituted or replaced by at least one R 10a Substituted C 1 -C 20 Alkylene, unsubstituted or substituted with at least one R10a Substituted C 2 -C 20 Alkenylene, unsubstituted or substituted with at least one R 10a Substituted C 3 -C 60 Carbocyclic group, either unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Heterocyclic group,

[0274] xa1 to xa4 can each independently be an integer from 0 to 5,

[0275] xa5 can be an integer from 1 to 10,

[0276] R 201 To R 204 and Q 201 may be each independently unsubstituted or substituted with at least one R 10a Substituted C 3 -C 60 Carbocyclic group, either unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Heterocyclic group,

[0277] R 201 and R 202 may be optionally substituted via a single bond, unsubstituted or substituted by at least one R 10a Substituted C 1 -C 5 Alkylene, either unsubstituted or substituted with at least one R 10a Substituted C 2 -C 5 The alkenylene groups are connected to each other to form an unsubstituted or substituted R 10a Substituted C 8 -C 60 Polycyclic groups (eg, carbazole groups, etc.) (eg, see compound HT16),

[0278] R 203 and R 204 may be optionally substituted via a single bond, unsubstituted or substituted by at least one R 10a Substituted C 1 -C 5 Alkylene, either unsubstituted or substituted with at least one R 10a Substituted C 2 -C 5 The alkenylene groups are connected to each other to form an unsubstituted or substituted R 10a Substituted C 8 -C 60 Polycyclic groups, and

[0279] na1 can be an integer from 1 to 4.

[0280] For example, in some embodiments, each of Formula 201 and Formula 202 may include at least one selected from the groups represented by Formula CY201 to Formula CY217:

[0281]

[0282] In formula CY201 to formula CY217, R 10b and R 10c can be respectively related to R 10a Same as described, CY 201 To Ring CY 204 Can be independently C 3 -C 20 Carbocyclic or C 1 -C 20 A heterocyclic group, and at least one hydrogen in Formula CY201 to Formula CY217 may be unsubstituted or replaced by R 10a replace.

[0283] In one or more embodiments, ring CY in Formula CY201 to Formula CY217 201 To Ring CY 204 Each independently may be phenyl, naphthyl, phenanthryl or anthracenyl.

[0284] In one or more embodiments, each of Formula 201 and Formula 202 may include at least one selected from the groups represented by Formula CY201 to Formula CY203.

[0285] According to one or more embodiments, Formula 201 may include at least one selected from the groups represented by Formulas CY201 to CY203 and at least one selected from the groups represented by Formulas CY204 to CY217.

[0286] In one or more embodiments, in formula 201, xa1 may be 1, R 201 may be a group represented by one selected from Formula CY201 to Formula CY203, xa2 may be 0, and R 202 It may be a group represented by one selected from the group consisting of Formula CY204 to Formula CY207.

[0287] In one or more embodiments, each of Formula 201 and Formula 202 may not include (eg, may exclude) any group represented by one selected from Formula CY201 to Formula CY203.

[0288] In one or more embodiments, Formula 201 and Formula 202 may each not include (eg, may exclude) any group represented by Formula CY201 to Formula CY203, and may include at least one selected from the groups represented by Formula CY204 to Formula CY217.

[0289] In one or more embodiments, each of Formula 201 and Formula 202 may not include (e.g., may exclude) any group represented by one selected from Formula CY201 to Formula CY217. In the present disclosure, "not including a component or any component", "excluding a component or any component" and / or "without a certain component" etc. means that the "component" is not added, selected or used as a component in the composition / formula / structure, but in some embodiments, due to other impurities and / or external factors, the "component" may still be included in an appropriate amount.

[0290] For example, in one or more embodiments, the hole transport region 120 may include at least one selected from the group consisting of compounds HT1 to HT46, 4,4',4"-[tris(3-methylphenyl)phenylamino]triphenylamine (m-MTDATA), 4,4',4"-tris(N,N-diphenylamino)triphenylamine (TDATA), 4,4',4"-tris[N-(2-naphthyl)-N-phenylamino]-triphenylamine (2-TNATA), N,N'-di(naphthalene-1-yl)-N,N'-diphenyl-benzidine (NPB (NPD)), β-NPB, TPD, spiro-TPD, spiro-NPB, methyl NPB, 4,4'-cyclohexylenebis[N,N-bis(4-methylphenyl)aniline] (TAPC), 4,4'-bis[N,N'-(3-methylphenyl)amino]-3,3'-dimethylbiphenyl (HMTPD), 4,4',4"-tri(N-carbazolyl)triphenylamine (TCTA), polyaniline / dodecylbenzenesulfonic acid (PANI / DBSA), poly(3,4-ethylenedioxythiophene) / poly(4-styrenesulfonate) (PEDOT / PSS), polyaniline / camphorsulfonic acid (PANI / CSA), polyaniline / poly(4-styrenesulfonate) (PANI / PSS), or any combination thereof:

[0291]

[0292]

[0293]

[0294]

[0295]

[0296] The thickness of the hole transport region 120 may be about To about In the range of, for example, about To about When the hole transport region 120 includes a hole injection layer, a hole transport layer, or any combination thereof, the thickness of the hole injection layer may be about 1000 Å. to about within the range of, for example, about to about and the thickness of the hole transport layer can be in the range of about to about within the range of, for example, about to about When the thicknesses of the hole transport region 120, the hole injection layer, and the hole transport layer are within these ranges, satisfactory hole transport characteristics may be obtained without significantly increasing the driving voltage.

[0297] The emission auxiliary layer can increase the luminous efficiency by compensating the optical resonance distance according to the wavelength of light emitted by the emission layer, and the electron blocking layer can block or reduce the leakage of electrons from the emission layer to the hole transport region. The material that can be included in the hole transport region 120 can be included in the emission auxiliary layer and the electron blocking layer.

[0298] p-dopant

[0299] In one or more embodiments, in addition to one or more of the above materials, the hole transport region 120 may further include a charge generating material for improving the conductive characteristics. The charge generating material may be uniformly or non-uniformly dispersed in the hole transport region 120 (e.g., in the form of a single layer consisting of the charge generating material).

[0300] The charge generating material may be, for example, a p-dopant.

[0301] For example, in one or more embodiments, the p-dopant may have a LUMO level of about -3.5 eV or less.

[0302] In one or more embodiments, the p-dopant may include a quinone derivative, a cyano-containing compound, a compound including the element EL1 and the element EL2, or any combination thereof.

[0303] Non-limiting examples of the quinone derivative may be tetracyanoquinodimethane (TCNQ), 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane (F4-TCNQ), and the like.

[0304]

[0305] A non-limiting example of the cyano group-containing compound may be dipyrazino[2,3-f:2',3'-h]quinoxaline-2,3,6,7,10,11-hexacarbonitrile (HAT-CN) or a compound represented by Formula 221:

[0306]

[0307] Formula 221

[0308]

[0309] Among them, in formula 221,

[0310] R 221 To R 223 may be each independently unsubstituted or substituted with at least one R 10a Substituted C 3 -C 60 Carbocyclic or unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 a heterocyclic group, and

[0311] Selected from R 221 To R 223 At least one of them may be independently C substituted by the following groups 3 -C 60 Carbocyclic or C 1 -C 60 Heterocyclic group: cyano; -F; -Cl; -Br; -I; C substituted by cyano, -F, -Cl, -Br, -I or any combination thereof 1 -C 20 or any combination thereof.

[0312] In a compound including an element EL1 and an element EL2, the element EL1 may be a metal, a metalloid, or any combination thereof, and the element EL2 may be a nonmetal, a metalloid, or any combination thereof.

[0313] Non-limiting examples of metals may be alkali metals (e.g., lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), etc.); alkaline earth metals (e.g., beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), etc.); transition metals (e.g., titanium (Ti), zirconium (Zr), hafnium (Hf), vanadium (V), niobium (Nb), tantalum (Ta), chromium (Cr), molybdenum (Mo), tungsten (W), manganese (Mn), technetium (Tc), rhenium (Re), iron (Fe), ruthenium (Ru), osmium (Os), cobalt (Co) (e.g., tantalum (Tb), cerium (Ce), praseodymium (Pr), neodymium (Nd), promethium (Pm), samarium (Sm), europium (Eu), gadolinium (Gd), terbium (Tb), dysprosium (Dy), holmium (Ho), erbium (Er), thulium (Tm), ytterbium (Yb), lutetium (Lu), etc.).

[0314] Non-limiting examples of metalloids may be silicon (Si), antimony (Sb), and / or tellurium (Te).

[0315] Non-limiting examples of non-metals may be oxygen (O) and / or halogens (eg, F, Cl, Br, I, etc.).

[0316] Non-limiting examples of compounds including element EL1 and element EL2 may be metal oxides, metal halides (e.g., metal fluorides, metal chlorides, metal bromides, or metal iodides), metalloid halides (e.g., metalloid fluorides, metalloid chlorides, metalloid bromides, or metalloid iodides), metal tellurides, or any combination thereof.

[0317] Non-limiting examples of metal oxides may be tungsten oxides (e.g., WO, W 2 O 3 , WO 2 , WO 3 , W 2 O 5 etc.), vanadium oxides (e.g., VO, V 2 O 3 , VO 2 、V 2 O 5 etc.), molybdenum oxides (e.g., MoO, Mo 2 O 3 、MoO 2 、MoO 3 、Mo 2 O 5 etc.) and / or rhenium oxide (e.g., ReO3 etc.

[0318] Non-limiting examples of the metal halide may be alkali metal halides, alkaline earth metal halides, transition metal halides, post-transition metal halides, and / or lanthanide metal halides.

[0319] Non-limiting examples of alkali metal halides may be LiF, NaF, KF, RbF, CsF, LiCl, NaCl, KCl, RbCl, CsCl, LiBr, NaBr, KBr, RbBr, CsBr, LiI, NaI, KI, RbI, and / or CsI.

[0320] A non-limiting example of the alkaline earth metal halide may be BeF 2 MgF 2 , CaF 2 , SrF 2 , BaF 2 、BeCl 2 MgCl 2 , CaCl 2 、SrCl 2 、BaCl 2 ,BeBr 2 MgBr 2 , CaBr 2 , SrBr 2 ,BaBr 2 ,BeI 2 MgI 2 ,CaI 2 , SrI 2 and / or BaI 2 .

[0321] Non-limiting examples of transition metal halides may be titanium halides (e.g., TiF 4 、TiCl 4 、TiBr 4 、TiI 4 etc.), zirconium halides (e.g., ZrF 4 、ZrCl 4 , ZrBr 4 , ZrI 4 etc.), hafnium halides (e.g., HfF 4 , HfCl 4 , HfBr 4 , HfI 4 etc.), vanadium halides (e.g., VF 3 、VCl 3 , VBr 3 VI 3 etc.), niobium halides (e.g., NbF3 、NbCl 3 , NbBr 3 , NbI 3 etc.), tantalum halides (e.g., TaF 3 、TaCl 3 、TaBr 3 、TaI 3 etc.), chromium halides (e.g., CrF 3 CrCl 3 CrBr 3 CrI 3 etc.), molybdenum halides (e.g., MoF 3 、MoCl 3 、MoBr 3 、MoI 3 etc.), tungsten halides (e.g., WF 3 、WCl 3 , WBr 3 , WI 3 etc.), manganese halides (e.g., MnF 2 、MnCl 2 、MnBr 2 、MnI 2 etc.), technetium halides (e.g., TcF 2 , TcCl 2 、TcBr 2 、TCl 2 etc.), rhenium halides (e.g., ReF 2 、ReCl 2 、ReBr 2 、ReI 2 etc.), ferrous halides (e.g., FeF 2 、FeCl 2 , FeBr 2 ,FeI 2 etc.), ruthenium halides (e.g., RuF 2 、RuCl 2 ,RuBr 2 , RuI 2 etc.), osmium halides (e.g., OsF 2 , OsCl 2 、OsBr 2 , OsI 2 etc.), cobalt halides (e.g., CoF 2 、CoCl 2 ,CoBr 2 、CoI 2 etc.), rhodium halides (e.g., RhF 2 , RhCl 2 , RhBr2 , RhI 2 etc.), iridium halides (e.g., IrF 2 、IrCl 2 ,IrBr 2 ,IrI 2 etc.), nickel halides (e.g., NiF 2 、NiCl 2 、NiBr 2 , NiI 2 etc.), palladium halides (e.g., PdF 2 , PdCl 2 , PdBr 2 , PdI 2 etc.), platinum halides (e.g., PtF 2 、PtCl 2 , PtBr 2 , PtI 2 etc.), cuprous halides (e.g., CuF, CuCl, CuBr, CuI, etc.), silver halides (e.g., AgF, AgCl, AgBr, AgI, etc.) and / or gold halides (e.g., AuF, AuCl, AuBr, AuI, etc.).

[0322] Non-limiting examples of late transition metal halides may be zinc halides (e.g., ZnF 2 、ZnCl 2 、ZnBr 2 、ZnI 2 etc.), indium halides (e.g., InI 3 etc.) and / or tin halides (e.g., SnI 2 etc.

[0323] Non-limiting examples of lanthanide metal halides may be YbF, YbF 2 , YbF 3 、SmF 3 、YbCl、YbCl 2 YbCl 3 、SmCl 3 , YbBr, YbBr 2 , YbBr 3 、SmBr 3 、YbI、YbI 2 ,YbI 3 and / or SmI 3 wait.

[0324] Non-limiting examples of metalloid halides may be antimony halides (e.g., SbCl 5 and / or the like) and / or the like.

[0325] Non-limiting examples of metal tellurides may be alkali metal tellurides (e.g., Li 2 Te、Na 2 Te, K 2 Te、Rb 2 Te, Cs 2 Te, etc.), alkaline earth metal tellurides (e.g., BeTe, MgTe, CaTe, SrTe, BaTe, etc.), transition metal tellurides (e.g., TiTe 2 、ZrTe 2 、HfTe 2 、V 2 Te 3 , Nb 2 Te 3 、 2 Te 3 Cr 2 Te 3 、Mo 2 Te 3 , W 2 Te 3 , MnTe, TcTe, Rete, FeTe, RuTe, OsTe, CoTe, RhTe, IrTe, NiTe, PdTe, PtTe, Cu 2 Te, CuTe, Ag 2 Te, AgTe, Au 2 Te, etc.), late transition metal tellurides (e.g., ZnTe, etc.) and / or lanthanide metal tellurides (e.g., LaTe, CeTe, PrTe, NdTe, PmTe, EuTe, GdTe, TbTe, DyTe, HoTe, ErTe, TmTe, YbTe, LuTe, etc.).

[0326] Emission layer 130

[0327] The light emitting device 10 may include an emission layer 130 on the hole transport region 120 .

[0328] In one or more embodiments, the emission layer 130 may further include metal-containing compounds (such as organometallic compounds) and / or inorganic materials (such as quantum dots), etc., in addition to one or more suitable organic materials.

[0329] The emission layer 130 may include i) two or more emission units sequentially stacked between the first electrode 110 and the second electrode 150; and ii) a charge generation layer located between the two or more emission units. When the emission layer 130 includes the emission units and the charge generation layer as described herein, the light emitting device 10 may be a tandem light emitting device.

[0330] When the light-emitting device 10 is a full-color light-emitting device, the emission layer can be patterned into a red emission layer, a green emission layer and / or a blue emission layer according to the sub-pixel. In one or more embodiments, the emission layer 130 may have a stacked structure of two or more layers selected from the red emission layer, the green emission layer and the blue emission layer, wherein the two or more layers are in contact with each other or separated from each other to emit white light (e.g., combined white light). In one or more embodiments, the emission layer 130 may include two or more materials selected from the red light-emitting material, the green light-emitting material and the blue light-emitting material, wherein the two or more materials are mixed with each other in a single layer to emit white light (e.g., combined white light).

[0331] In one or more embodiments, the emission layer 130 may include a host and a dopant. The dopant may include a phosphorescent dopant, a fluorescent dopant, or any combination thereof.

[0332] The amount of the dopant in the emission layer 130 may be about 0.01 parts by weight to about 15 parts by weight relative to 100 parts by weight of the host.

[0333] In one or more embodiments, the emission layer 130 may include quantum dots.

[0334] In one or more embodiments, the emission layer 130 may include a delayed fluorescent material. The delayed fluorescent material may be used as a host or a dopant in the emission layer.

[0335] The thickness of the emission layer 130 may be about to about In some embodiments, the thickness of the emission layer 130 is about to about When the thickness of the emission layer 130 is within this range, excellent or suitable light emitting characteristics may be obtained without significantly increasing the driving voltage.

[0336] main body

[0337] In one or more embodiments, the host may include a compound represented by Formula 301:

[0338] [Ar 301 ] xb11 -[(L 301 ) xb1 -R 301 ] xb21 ,

[0339] Wherein, in Formula 301,

[0340] Ar 301 and L 301 may be each independently unsubstituted or substituted with at least one R10a Substituted C 3 -C 60 The carbocyclic group is either unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Heterocyclic group,

[0341] xb11 can be 1, 2 or 3,

[0342] xb1 can be an integer from 0 to 5.

[0343] R 301 can be hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, unsubstituted or replaced by at least one R 10a Substituted C 1 -C 60 Alkyl, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Alkenyl, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Alkynyl, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Alkoxy, unsubstituted or substituted with at least one R 10a Substituted C 3 -C 60 Carbocyclic group, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Heterocyclic group, -Si(Q 301 )(Q 302 )(Q 303 )、-N(Q 301 )(Q 302 )、-B(Q 301 )(Q 302 )、-C(=O)(Q 301 )、-S(=O) 2 (Q 301 ), or -P(=O)(Q 301 )(Q 302 ),

[0344] xb21 can be an integer from 1 to 5, and

[0345] Q 301 To Q 303 Each of them is related to the Q 1 Same as described.

[0346] For example, in some embodiments, when xb11 in Formula 301 is an integer of 2 or greater, two or more Ar 301(s) can be connected to each other via a single bond.

[0347] In one or more embodiments, the host may include a compound represented by Formula 301-1, a compound represented by Formula 301-2, or any combination thereof:

[0348] Formula 301-1

[0349]

[0350] Formula 301-2

[0351]

[0352] Among them, in Formula 301-1 and Formula 301-2,

[0353] Ring A 301 To Ring A 304 may be each independently unsubstituted or substituted with at least one R 10a Substituted C 3 -C 60 The carbocyclic group is either unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Heterocyclic group,

[0354] X 301 Can be O, S, N[(L 304 ) xb4 -R 304 ]、C(R 304 )(R 305 ) or Si(R 304 )(R 305 ),

[0355] xb22 and xb23 can each independently be 0, 1 or 2,

[0356] L 301 , xb1 and R 301 may each be the same as described herein,

[0357] L 302 To L 304 can be independently compared with the L 301 Same as described,

[0358] xb2 to xb4 may each independently be the same as described herein with respect to xb1, and

[0359] R 302 To R 305and R 311 To R 314 can be compared with the R 301 Same as described.

[0360] In one or more embodiments, the host may include an alkaline earth metal complex, a late transition metal complex, or any combination thereof. For example, the host may include a Be complex (e.g., compound H55), a Mg complex, a Zn complex, or any combination thereof.

[0361] In one or more embodiments, the host may include: at least one selected from Compound H1 to Compound H128, 9,10-di(2-naphthyl)anthracene (AND), 2-methyl-9,10-bis(naphthalene-2-yl)anthracene (MADN), 9,10-di(2-naphthyl)-2-tert-butyl-anthracene (TBADN), 4,4'-bis(N-carbazolyl)-1,1'-biphenyl (CBP), 1,3-di-(9-carbazolyl)benzene (mCP) and 1,3,5-tri(carbazolyl-9-yl)benzene (TCP), or any combination thereof:

[0362]

[0363]

[0364]

[0365]

[0366]

[0367]

[0368] Phosphorescent dopants

[0369] In one or more embodiments, the phosphorescent dopant may include at least one transition metal as a central metal.

[0370] The phosphorescent dopant may include a monodentate ligand, a bidentate ligand, a tridentate ligand, a tetradentate ligand, a pentadentate ligand, a hexadentate ligand, or any combination thereof.

[0371] The phosphorescent dopant may be electrically neutral.

[0372] For example, in one or more embodiments, the phosphorescent dopant may include an organometallic compound represented by Formula 401:

[0373] Formula 401

[0374] M(L 401 ) xc1 (L 402 ) xc2

[0375] Formula 402

[0376]

[0377] Among them, in equation 401 and equation 402,

[0378] M can be a transition metal (e.g., iridium (Ir), platinum (Pt), palladium (Pd), osmium (Os), titanium (Ti), gold (Au), hafnium (Hf), europium (Eu), terbium (Tb), rhodium (Rh), rhenium (Re), or thulium (Tm)).

[0379] L 401 may be a ligand represented by Formula 402, and xc1 may be 1, 2 or 3, wherein when xc1 is an integer of 2 or greater, L 401 Two or more of may be the same or different from each other,

[0380] L 402 may be an organic ligand, and xc2 may be 0, 1, 2, 3 or 4, and when xc2 is an integer of 2 or greater, L 402 Two or more of may be the same or different from each other,

[0381] X 401 and X 402 may each independently be nitrogen or carbon,

[0382] Ring A 401 and Ring A 402 Can be independently C 3 -C 60 Carbocyclic or C 1 -C 60 Heterocyclic group,

[0383] T 401 It can be a single bond, *-O-*', *-S-*', *-C(=O)-*', *-N(Q 411 )-*'、*-C(Q 411 )(Q 412 )-*'、*-C(Q 411 )=C(Q 412 )-*'、*-C(Q 411 )=*', or *=C=*',

[0384] X 403 and X 404 can be independently a chemical bond (e.g., a covalent bond or a coordination bond), O, S, N (Q 413 )、B(Q 413 )、P(Q 413 )、C(Q413 )(Q 414 ) or Si(Q 413 )(Q 414 ),

[0385] Q 411 To Q 414 can be compared with the Q 1 Same as described,

[0386] R 401 and R 402 can be each independently hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 20 Alkyl, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 20 Alkoxy, unsubstituted or substituted with at least one R 10a Substituted C 3 -C 60 Carbocyclic group, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Heterocyclic group, -Si(Q 401 )(Q 402 )(Q 403 )、-N(Q 401 )(Q 402 )、-B(Q 401 )(Q 402 )、-C(=O)(Q 401 )、-S(=O) 2 (Q 401 ) or -P(=O)(Q 401 )(Q 402 ),

[0387] Q 401 To Q 403 can be compared with the Q 1 Same as described,

[0388] xc11 and xc12 may each independently be an integer from 0 to 10, and

[0389] * and *' in formula 402 each represent a binding site with M in formula 401.

[0390] For example, in some embodiments, in equation 402, i)X 401 can be nitrogen, and X 402 It can be carbon, or ii) X 401 and X402 Each of can be nitrogen.

[0391] In one or more embodiments, when xc1 in equation 401 is an integer of 2 or greater, two or more L 401 The two rings A 401 It can be optionally connected via T as a linker 402 bonded to each other, and / or two or more L 401 The two rings A 402 It can be optionally connected via T as a linker 403 Bonded to each other (see Compound PD1 to Compound PD4 and Compound PD7). 402 and T 403 can be compared with the T 401 Same as described.

[0392] L in Formula 401 402 It can be an organic ligand. For example, L 402 It may include a halogen, a diketone group (e.g., an acetylacetonate group), a carboxylic acid group (e.g., a picolinate group), -C(=O), an isonitrile group, -CN, a phosphorus-containing group (e.g., a phosphine group, a phosphite group, etc.), or any combination thereof.

[0393] In one or more embodiments, the phosphorescent dopant may include, for example, one selected from Compound PD1 to Compound PD39 or any combination thereof:

[0394]

[0395]

[0396]

[0397] Fluorescent dopants

[0398] The fluorescent dopant may include an amine-containing compound, a styrene-containing compound, or any combination thereof.

[0399] For example, in one or more embodiments, the fluorescent dopant may include a compound represented by Formula 501:

[0400] Formula 501

[0401]

[0402] Wherein, in Formula 501,

[0403] Ar 501 , L 501 To L 503 , R 501and R 502 may be each independently unsubstituted or substituted with at least one R 10a Substituted C 3 -C 60 The carbocyclic group is either unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Heterocyclic group,

[0404] xd1 to xd3 may each independently be 0, 1, 2 or 3, and

[0405] xd4 can be 1, 2, 3, 4, 5 or 6.

[0406] For example, in some embodiments, Ar in Formula 501 501 It may be a fused ring group in which three or more monocyclic groups are fused together (e.g., anthracenyl, yl or pyrene).

[0407] In one or more embodiments, xd4 in equation 501 may be 2.

[0408] In one or more embodiments, the fluorescent dopant may include: at least one selected from Compound FD1 to Compound FD37, 4,4'-bis(2,2-diphenylvinyl)-1,1'-biphenyl (DPVBi), 4,4'-bis[4-(N,N-diphenylamino)phenylvinyl]biphenyl (DPAVBi), or any combination thereof:

[0409]

[0410]

[0411]

[0412]

[0413] Delayed fluorescence material

[0414] In one or more embodiments, the emission layer 130 may include a delayed fluorescent material.

[0415] In the present disclosure, the delayed fluorescent material may be selected from compounds capable of emitting delayed fluorescence based on a delayed fluorescence emission mechanism.

[0416] The delayed fluorescent material included in the emission layer 130 may act as a host or a dopant depending on the type or kind of other materials included in the emission layer 130 .

[0417] In one or more embodiments, the difference between the triplet energy level (eV) of the delayed fluorescent material and the singlet energy level (eV) of the delayed fluorescent material may be greater than or equal to 0 eV and less than or equal to 0.5 eV. When the difference between the triplet energy level (eV) of the delayed fluorescent material and the singlet energy level (eV) of the delayed fluorescent material satisfies the above range, up-conversion from the triplet state of the delayed fluorescent material to the singlet state may effectively occur, and therefore, the light emitting device 10 may have improved luminous efficiency.

[0418] For example, in one or more embodiments, the delayed fluorescent material may include: i) at least one electron donor (eg, π-electron-rich C 3 -C 60 a cyclic group, such as a carbazolyl group) and at least one electron acceptor (e.g., a sulfoxide group, a cyano group, or a π-electron-poor nitrogen-containing C 1 -C 60 and / or ii) including C 8 -C 60 Polycyclic materials, in C 8 -C 60 In the polycyclic group, two or more ring groups are fused while sharing boron (B).

[0419] Non-limiting examples of the delayed fluorescent material may include at least one selected from Compound DF1 to Compound DF14:

[0420]

[0421]

[0422] quantum dots

[0423] In one or more embodiments, the emission layer 130 may include quantum dots.

[0424] The term "quantum dot" as used herein refers to a crystal of a semiconductor compound, and may include any material capable of emitting light at one or more suitable emission wavelengths depending on the size of the crystal.

[0425] The diameter of the quantum dot can be, for example, in the range of about 1 nm to about 10 nm. In the present disclosure, when the quantum dot, multiple quantum dots or quantum dot particles are spherical, "diameter" means the particle diameter or the average particle diameter, and when the particles are non-spherical, "diameter" means the major axis length or the average major axis length. The diameter of the particles can be measured using a scanning electron microscope or a particle size analyzer. For example, HORIBA, LA-950 laser particle size analyzer can be used as a particle size analyzer. When the size of the particles is measured using a particle size analyzer, the average particle diameter is referred to as D50. D50 refers to the average diameter of the particles whose cumulative volume corresponds to 50% by volume (vol%) in a particle size distribution (e.g., cumulative distribution), and refers to the value of the particle size corresponding to 50% from the smallest particle when the total number of particles is 100% in a distribution curve accumulated in the order of the smallest particle size to the largest particle size.

[0426] Quantum dots can be synthesized by a wet chemical process, a metal organic chemical vapor deposition process, a molecular beam epitaxy process, or any process similar thereto.

[0427] The wet chemical process is a method that includes mixing the precursor material of the quantum dot with an organic solvent and then growing the quantum dot particle crystal. When the crystal grows, the organic solvent naturally acts as a dispersant coordinated on the surface of the quantum dot crystal and controls the growth of the crystal, so that the growth of the quantum dot particles can be controlled or selected by a process that is less expensive and easier than a vapor deposition method such as metal organic chemical vapor deposition (MOCVD) or molecular beam epitaxy (MBE).

[0428] The quantum dots may include Group II-VI semiconductor compounds, Group III-V semiconductor compounds, Group III-VI semiconductor compounds, Group I-III-VI semiconductor compounds, Group IV-VI semiconductor compounds, Group IV elements or compounds, or any combination thereof.

[0429] Non-limiting examples of II-VI semiconductor compounds can include (e.g., are): binary compounds such as CdS, CdSe, CdTe, ZnS, ZnSe, ZnTe, ZnO, HgS, HgSe, HgTe, MgSe, and / or MgS; ternary compounds such as CdSeS, CdSeTe, CdSTe, ZnSeS, ZnSeTe, ZnSTe, HgSeS, HgSeTe, HgSTe, CdZ nS, CdZnSe, CdZnTe, CdHgS, CdHgSe, CdHgTe, HgZnS, HgZnSe, HgZnTe, MgZnSe and / or MgZnS; quaternary compounds such as CdZnSeS, CdZnSeTe, CdZnSTe, CdHgSeS, CdHgSeTe, CdHgSTe, HgZnSeS, HgZnSeTe and / or HgZnSTe; or any combination thereof.

[0430] Non-limiting examples of III-V semiconductor compounds may include (e.g., are): binary compounds such as GaN, GaP, GaAs, GaSb, AlN, AlP, AlAs, AlSb, InN, InP, InAs, and / or InSb; ternary compounds such as GaNPs, GaNAs, GaNSb, GaPAs, GaPSb, AlNPs, AlNAs, AlNSb, AlPAs, AlPSb, InGaP, InNP, InAlP, InNAs, InNSb, InPAs, and / or InPSb; quaternary compounds such as GaAlNPs, GaAlNAs, GaAlNSb, GaAlPAs, GaAlPSb, GaInNPs, GaInNAs, GaInNSb, GaInPAs, GaInPSb, InAlNPs, InAlNAs, InAlNSb, InAlPAs, and / or InAlPSb; or any combination thereof. In some embodiments, the III-V semiconductor compounds may also include Group II elements. Non-limiting examples of Group III-V semiconductor compounds that also include Group II elements may include (eg, be) InZnP, InGaZnP, InAlZnP, and the like.

[0431] Non-limiting examples of III-VI semiconductor compounds may include (eg, are): binary compounds such as GaS, GaSe, Ga 2 Se 3 、GaTe、InS、InSe、In 2 S 3 、In 2 Se 3 and / or InTe; ternary compounds such as InGaS 3and / or InGaSe 3 ; or any combination thereof.

[0432] Non-limiting examples of Group I-III-VI semiconductor compounds may include (e.g., are): ternary compounds such as AgInS, AgInS 2 、CuInS、CuInS 2 、CuGaO 2 、AgGaO 2 and / or AgAlO 2 ; quaternary compounds such as AgInGaS and / or AgInGaS 2 ; or any combination thereof.

[0433] Non-limiting examples of Group IV-VI semiconductor compounds may include (e.g., are): binary compounds such as SnS, SnSe, SnTe, PbS, PbSe and / or PbTe; ternary compounds such as SnSeS, SnSeTe, SnSTe, PbSeS, PbSeTe, PbSTe, SnPbS, SnPbSe and / or SnPbTe; quaternary compounds such as SnPbSSe, SnPbSeTe and / or SnPbSTe; or any combination thereof.

[0434] Non-limiting examples of Group IV elements or compounds may include (eg, are): single elements such as Si, Ge, etc.; binary compounds such as SiC and / or SiGe, etc.; or any combination thereof.

[0435] Each element included in the multi-component compound such as the binary compound, the ternary compound, and the quaternary compound may be present in the particle at a substantially uniform concentration or a non-substantially uniform concentration.

[0436] In some embodiments, the quantum dot may have a single structure in which the concentration of each element in the quantum dot is substantially uniform, or may have a core-shell double structure. For example, the material included in the core and the material included in the shell may be different from each other.

[0437] The shell of the quantum dot can be used as a protective layer to prevent chemical denaturation of the core to maintain semiconductor properties and / or as a charged layer to impart electrophoretic properties to the quantum dot. The shell can be a single layer or multiple layers. The interface between the core and the shell can have a concentration gradient in which the concentration of the element present in the shell decreases toward the center of the core.

[0438] Examples of the shell of a quantum dot may be oxides of metals, metalloids or non-metals, semiconductor compounds and any combination thereof. Non-limiting examples of oxides of metals, metalloids or non-metals may include (e.g., are): binary compounds such as SiO 2 、Al 2O 3 、TiO 2 、ZnO、MnO、Mn 2 O 3 , Mn 3 O 4 , CuO, FeO, Fe 2 O 3 , Fe 3 O 4 , CoO, Co 3 O 4 and / or NiO; ternary compounds such as MgAl 2 O 4 、CoFe 2 O 4 、NiFe 2 O 4 and / or CoMn 2 O 4 ; or any combination thereof. Examples of semiconductor compounds may include (e.g., are): as described herein, II-VI semiconductor compounds; III-V semiconductor compounds; III-VI semiconductor compounds; I-III-VI semiconductor compounds; IV-VI semiconductor compounds; or any combination thereof. For example, semiconductor compounds suitable as shells may include CdS, CdSe, CdTe, ZnS, ZnSe, ZnTe, ZnSeS, ZnTeS, GaAs, GaP, GaSb, HgS, HgSe, HgTe, InAs, InP, InGaP, InSb, AlAs, AlP, AlSb, or any combination thereof.

[0439] The full width at half maximum (FWHM) of the emission spectrum of the quantum dot can be about 45nm or less, for example, about 40nm or less, for example, about 30nm or less, and within these ranges, the color purity or color reproducibility of the quantum dot can be increased. In some embodiments, because the light emitted by the quantum dot is emitted in all directions, the wide viewing angle can be improved.

[0440] In one or more embodiments, the quantum dots may be in the form of spherical nanoparticles, pyramidal nanoparticles, multi-armed nanoparticles, cubic nanoparticles, nanotubes, nanowires, nanofibers, or nanoplates.

[0441] Because the energy band gap of quantum dots can be adjusted by controlling the size of quantum dots, light with one or more suitable wavelength bands can be obtained from the quantum dot emission layer. Therefore, by using quantum dots of different sizes, a light-emitting device that emits light of one or more suitable wavelengths can be realized. In one or more embodiments, the size of the quantum dots can be selected so that the quantum dots can emit red light, green light and / or blue light. In some embodiments, quantum dots with suitable sizes can be configured to emit white light by combining one or more suitable colors of light.

[0442] Photoactive layer 135

[0443] The photoactive layer 135 may generate excitons by absorbing incident light. The excitons may generate holes and electrons. The holes generated by the photoactive layer 135 may move to the first electrode 110 through the hole transport region 120. The electrons generated by the photoactive layer 135 may move to the second electrode 150 through the electron transport region 140. In this way, the photoactive layer 135 may absorb light to generate an electrical signal. Therefore, the optoelectronic device 30 including the photoactive layer 135 may be used as an optical sensor. In one or more embodiments, the photoactive layer 135 may include a donor, which may be referred to as a p-type or p-type compound, and an acceptor, which may be referred to as an n-type or n-type compound. The donor may supply electrons, and the acceptor may receive electrons.

[0444] In one or more embodiments, the photoactive layer 135 may not include (e.g., may exclude) (e.g., any) subnaphthalocyanine compounds and (e.g., any) fullerene compounds. For example, the photoactive layer 135 may not include (e.g., may exclude) SubNC, fullerene 60, and fullerene 70:

[0445]

[0446] For example, in one or more embodiments, the donor may not be SubNC, and the acceptor may not be fullerene 60 and fullerene 70 .

[0447] Since the photoactive layer 135 may have a single-layer structure or a multi-layer structure, a detailed description of the optoelectronic device 30 including the photoactive layer 135 will be provided later.

[0448] Electron transport region 140

[0449] The electron transport region 140 may have: i) a single-layer structure including a single layer including a single material (e.g., consisting of a single layer including a single material); ii) a single-layer structure including a single layer including a plurality of materials different from each other (e.g., consisting of a single layer including a plurality of materials different from each other); or iii) a multi-layer structure including a plurality of layers including a plurality of different materials different from each other (e.g., consisting of a plurality of layers including a plurality of different materials different from each other).

[0450] The electron transport region 140 may include a buffer layer, a hole blocking layer, an electron control layer, an electron transport layer, an electron injection layer, or any combination thereof.

[0451] In one or more embodiments, the electron transport region 140 may have an electron transport layer / electron injection layer structure, a hole blocking layer / electron transport layer / electron injection layer structure, an electron control layer / electron transport layer / electron injection layer structure, or a buffer layer / electron transport layer / electron injection layer structure, wherein, for each structure, the constituent layers are stacked sequentially from the emission layer 130 in the order stated.

[0452] In one or more embodiments, the electron transport region 140 (e.g., a buffer layer, a hole blocking layer, an electron control layer, or an electron transport layer in the electron transport region 140) may include a metal-free compound including at least one π-electron-poor nitrogen-containing C 1 -C 60 Cyclic group.

[0453] For example, in some embodiments, the electron transport region 140 may include a compound represented by Formula 601:

[0454] Formula 601

[0455] [Ar 601 ] xe11 -[(L 601 ) xe1 -R 601 ] xe21 ,

[0456] Wherein, in Formula 601,

[0457] Ar 601 and L 601 may be each independently unsubstituted or substituted with at least one R 10a Substituted C 3 -C 60 The carbocyclic group is either unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Heterocyclic group,

[0458] xe11 can be 1, 2 or 3,

[0459] xe1 can be 0, 1, 2, 3, 4, or 5,

[0460] R 601 may be unsubstituted or substituted with at least one R 10a Substituted C 3 -C 60 Carbocyclic group, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Heterocyclic group, -Si(Q 601 )(Q 602 )(Q 603 )、-C(=O)(Q 601 )、-S(=O) 2 (Q 601 ) or -P(=O)(Q 601 )(Q 602 ),

[0461] Q 601 To Q 603 can be compared with the Q 1 Same as described.

[0462] xe21 can be 1, 2, 3, 4, or 5, and

[0463] Selected from Ar 601 , L 601 and R 601 At least one of them may be independently unsubstituted or substituted by at least one R 10a Substituted π-electron-poor nitrogen-containing C 1 -C 60 Cyclic group.

[0464] For example, when xe11 in Formula 601 is an integer of 2 or greater, two or more Ar 601 Can be connected to each other by a single key.

[0465] In some embodiments, Ar in Formula 601 601 may be unsubstituted or substituted with at least one R 10a Substituted anthracenyl.

[0466] In one or more embodiments, the electron transport region 140 may include a compound represented by Formula 601-1:

[0467] Formula 601-1

[0468]

[0469] Among them, in formula 601-1,

[0470] X 614 Can be N or C (R 614 ), X 615 Can be N or C (R 615 ), X 616 Can be N or C (R 616 ), and is selected from X 614 To X 616 At least one of them may be N,

[0471] L 611 To L 613 can be respectively compared with the L 601 Same as described,

[0472] xe611 to xe613 may each be the same as described herein with respect to xe1,

[0473] R 611 To R 613 can be compared with the R 601 Same as described, and

[0474] R 614 To R 616 can be independently hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C 1 -C 20 Alkyl, C 1 -C 20 Alkoxy, unsubstituted or substituted with at least one R 10a Substituted C 3 -C 60 Carbocyclic group, either unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Heterocyclic group.

[0475] For example, in some embodiments, xe1 and xe611 to xe613 in Formula 601 and Formula 601-1 may each independently be 0, 1, or 2.

[0476] In one or more embodiments, the electron transport region 140 may include at least one selected from the group consisting of compounds ET1 to ET45, 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline (BCP), 4,7-diphenyl-1,10-phenanthroline (Bphen), tris(8-hydroxyquinoline)aluminum (Alq 3), bis(2-methyl-8-hydroxyquinoline-N1,08)-(1,1'-biphenyl-4-hydroxy)aluminum (BAlq), 3-(4-biphenyl)-4-phenyl-5-tert-butylphenyl-1,2,4-triazole (TAZ) and 4-(naphthalene-1-yl)-3,5-diphenyl-4H-1,2,4-triazole (NTAZ), or any combination thereof:

[0477]

[0478]

[0479]

[0480] The thickness of the electron transport region 140 may be about to about within the range (e.g., within about to about When the electron transport region 140 includes a buffer layer, a hole blocking layer, an electron control layer, an electron transport layer, or any combination thereof, the thickness of the buffer layer, the hole blocking layer, or the electron control layer may be independently about to about For example, about to about And the thickness of the electron transport layer can be about to about For example, about to about When the thickness of the buffer layer, the hole blocking layer, the electron control layer, the electron transport layer and / or the electron transport region 140 is within these ranges, satisfactory electron transport characteristics may be obtained without significantly increasing driving voltage.

[0481] In one or more embodiments, the electron transport region 140 (eg, the electron transport layer in the electron transport region 140 ) may further include a metal-containing material in addition to one or more of the above materials.

[0482] The metal-containing material can include alkali metal complex, alkaline earth metal complex or any combination thereof. The metal ion of the alkali metal complex can be Li ion, Na ion, K ion, Rb ion or Cs ion, and the metal ion of the alkaline earth metal complex can be Be ion, Mg ion, Ca ion, Sr ion or Ba ion. The ligand coordinated with the metal ion of the alkali metal complex or the metal ion of the alkaline earth metal complex can include hydroxyquinoline, hydroxyisoquinoline, hydroxybenzoquinoline, hydroxyacridine, hydroxyphenanthridine, hydroxyphenyloxazole, hydroxyphenylthiazole, hydroxyphenyloxadiazole, hydroxyphenylthiadiazole, hydroxyphenylpyridine, hydroxyphenylbenzimidazole, hydroxyphenylbenzothiazole, bipyridine, phenanthroline, cyclopentadiene or any combination thereof.

[0483] For example, in some embodiments, the metal-containing material may include a Li complex. The Li complex may include, for example, compound ET-D1(Liq) and / or compound ET-D2:

[0484]

[0485] In one or more embodiments, the electron transport region 140 may include an electron injection layer that facilitates injection of electrons from the second electrode 150. The electron injection layer may be in direct contact with the second electrode 150; however, embodiments of the present disclosure are not limited thereto.

[0486] The electron injection layer may have: i) a single-layer structure, including a single layer (e.g., consisting of a single layer), the single layer including a single material (e.g., consisting of a single material); ii) a single-layer structure, including a single layer (e.g., consisting of a single layer), the single layer including a plurality of different materials (e.g., consisting of a plurality of different materials); or iii) a multi-layer structure, including a plurality of layers containing different materials.

[0487] The electron injection layer may include an alkali metal, an alkaline earth metal, a rare earth metal, an alkali metal compound, an alkaline earth metal compound, a rare earth metal compound, an alkali metal complex, an alkaline earth metal complex, a rare earth metal complex, or any combination thereof.

[0488] The alkali metal may include Li, Na, K, Rb, Cs, or any combination thereof. The alkaline earth metal may include Mg, Ca, Sr, Ba, or any combination thereof. The rare earth metal may include Sc, Y, Ce, Tb, Yb, Gd, or any combination thereof.

[0489] The alkali metal compound, the alkaline earth metal compound, and the rare earth metal compound may be oxides, halides (e.g., fluorides, chlorides, bromides, or iodides), or tellurides of the alkali metal, the alkaline earth metal, and the rare earth metal, respectively, or any combination thereof.

[0490] The alkali metal compound may include: alkali metal oxides, such as Li 2 O, Cs 2 O, and / or K 2 O; alkali metal halides, such as LiF, NaF, CsF, KF, LiI, NaI, CsI, and / or KI; or any combination thereof. The alkaline earth metal compound may include alkaline earth metal compounds, such as BaO, SrO, CaO, Ba x Sr 1-x O (where x is a real number satisfying the condition 0 < x < 1) and / or Ba x Ca 1-x O (where x is a real number satisfying the condition 0 < x < 1), etc. The rare earth metal compound may include YbF3 ScF 3 Sc 2 O 3 , Y 2 O 3 、Ce 2 O 3 , GdF 3 , TbF 3 ,YbI 3 ScI 3 , TbI 3 Or any combination thereof. In one or more embodiments, the rare earth metal-containing compound may include a lanthanide metal telluride. Non-limiting examples of lanthanide metal tellurides may include (e.g., are) LaTe, CeTe, PrTe, NdTe, PmTe, SmTe, EuTe, GdTe, TbTe, DyTe, HoTe, ErTe, TmTe, YbTe, LuTe, LaTe, 2 Te 3 、Ce 2 Te 3 , Pr 2 Te 3 、Nd 2 Te 3 、Pm 2 Te 3 、Sm 2 Te 3 、Eu 2 Te 3 , Gd 2 Te 3 , Tb 2 Te 3 、Dy 2 Te 3 、Ho 2 Te 3 , Er 2 Te 3 、Tm 2 Te 3 , Yb 2 Te 3 and / or Lu 2 Te 3 .

[0491] The alkali metal complex, the alkaline earth metal complex and the rare earth metal complex may respectively include: i) one of the metal ions of the alkali metal, one of the metal ions of the alkaline earth metal and one of the metal ions of the rare earth metal; and ii) a ligand bonded to the corresponding metal ion, for example, hydroxyquinoline, hydroxyisoquinoline, hydroxybenzoquinoline, hydroxyacridine, hydroxyphenanthridine, hydroxyphenyloxazole, hydroxyphenylthiazole, hydroxyphenyloxadiazole, hydroxyphenylthiadiazole, hydroxyphenylpyridine, hydroxyphenylbenzimidazole, hydroxyphenylbenzothiazole, bipyridine, phenanthroline, cyclopentadiene, or any combination thereof.

[0492] In one or more embodiments, as described above, the electron injection layer may include (e.g., be composed of) an alkali metal, an alkaline earth metal, a rare earth metal, an alkali metal-containing compound, an alkaline earth metal-containing compound, a rare earth metal-containing compound, an alkali metal complex, an alkaline earth metal complex, a rare earth metal complex, or any combination thereof. In one or more embodiments, the electron injection layer may also include an organic material (e.g., a compound represented by Formula 601).

[0493] In one or more embodiments, the electron injection layer may include (e.g., be composed of): i) an alkali metal compound (e.g., an alkali metal halide); or ii) a) an alkali metal compound (e.g., an alkali metal halide) and b) an alkali metal, an alkaline earth metal, a rare earth metal, or any combination thereof. For example, in some embodiments, the electron injection layer may be a KI:Yb co-deposition layer, a RbI:Yb co-deposition layer, and / or a LiF:Yb co-deposition layer, etc.

[0494] When the electron injection layer also includes an organic material, an alkali metal, an alkaline earth metal, a rare earth metal, an alkali metal-containing compound, an alkaline earth metal-containing compound, a rare earth metal-containing compound, an alkali metal complex, an alkaline earth metal complex, a rare earth metal complex, or any combination thereof can be substantially uniformly or non-uniformly dispersed in a matrix including the organic material.

[0495] The thickness of the electron injection layer can be about to about within the range of, or for example, within about to about When the thickness of the electron injection layer is within the above range, satisfactory electron injection characteristics can be obtained without significantly increasing the driving voltage.

[0496] The second electrode 150

[0497] The second electrode 150 may be on the electron transport region 140. The second electrode 150 may be a cathode as an electron injection electrode, and as a material for forming the second electrode 150, metals, alloys, conductive compounds, or any combination thereof each having a low work function may be used.

[0498] The second electrode 150 may include Li, Ag, Mg, Al, Al-Li, Ca, Mg-In, Mg-Ag, Yb, Ag-Yb, ITO, IZO, or any combination thereof. The second electrode 150 may be a transmissive electrode, a semi-transmissive electrode, or a reflective electrode.

[0499] The second electrode 150 may have a single-layer structure or a multi-layer structure including a plurality of layers.

[0500] Optoelectronic devices 30, 31 and 32

[0501] Reference Figure 4 In one or more embodiments, the optoelectronic device 30 may include the photoactive layer 135 as a single layer. For example, the photoactive layer 135 as a single layer may include both the donor and the acceptor (e.g., include both the donor and the acceptor at the same time). For example, the photoactive layer 135 may be formed by vacuum depositing a mixture of the donor and the acceptor. For example, the photoactive layer 135 may be easily manufactured by a single chamber process.

[0502] Figure 5 is a schematic diagram of an optoelectronic device 31 according to one or more embodiments of the present disclosure.

[0503] Since in addition to the structure of the photoactive layer 135, Figure 5 The optoelectronic device 31 is basically the same as Figure 4 The optoelectronic device 30 is the same as that of FIG. 1 , and thus any redundant description of other layers is omitted.

[0504] Reference Figure 5 In one or more embodiments, the photoactive layer 135 may include a first layer 131 adjacent to the hole transport region 120 and a second layer 132 adjacent to the electron transport region 140. For example, the second layer 132 may be disposed between the first layer 131 and the electron transport region 140. For example, in some embodiments, the photoactive layer 135 may have a multi-layer structure that may be divided into the first layer 131 and the second layer 132.

[0505] In one or more embodiments, the first layer 131 may include a donor. For example, the first layer 131 may absorb red light of about 600 nm to about 750 nm. The first layer 131 may not include (e.g., may exclude) an acceptor and may include a donor; however, embodiments of the present disclosure are not limited thereto.

[0506] In one or more embodiments, the second layer 132 may include an acceptor. The second layer 132 may not include (eg, may exclude) a donor and may include an acceptor; however, embodiments of the present disclosure are not limited thereto.

[0507] Figure 6is a schematic diagram of an optoelectronic device 32 according to one or more embodiments of the present disclosure.

[0508] Since in addition to the structure of the photoactive layer 135, Figure 6 The optoelectronic device 32 is basically the same as Figure 5 The optoelectronic device 31 is the same as that of FIG. 1 , and thus any redundant description of other layers is omitted.

[0509] Reference Figure 6 In one or more embodiments, the photoactive layer 135 may further include a third layer 133 between the first layer 131 and the second layer 132. For example, in some embodiments, the photoactive layer 135 may have a multi-layer structure that may be divided into a first layer 131, a second layer 132, and a third layer 133.

[0510] In one or more embodiments, the third layer 133 may include a donor and an acceptor.

[0511] Electronic equipment

[0512] Optoelectronic devices 30 , 31 , and / or 32 may be included in one or more suitable electronic equipment.

[0513] For example, the electronic equipment including the optoelectronic devices 30, 31 and / or 32 can be a flat panel display, a curved display, a computer monitor, a medical monitor, a television, a billboard, a light for indoor or outdoor lighting and / or signaling, a head-up display, a fully transparent or partially transparent display, a flexible display, a rollable display, a foldable display, a stretchable display, a laser printer, a phone such as a tablet phone or a mobile phone, a tablet computer, a personal digital assistant (PDA), a wearable device, a laptop computer, a digital camera, a video camera, a viewfinder, a microdisplay, a 3D display, a virtual or augmented reality display, a vehicle, a video wall including multiple displays stitched together, a theater or stadium screen, a light therapy device, a sign, a sensor for a vehicle, a sensor for a home, a solar cell, or one or more combinations thereof.

[0514] Since the optoelectronic devices 30 , 31 , and 32 have excellent or suitable optoelectronic characteristics, the electronic equipment may have the function of an optical sensor such as a fingerprint recognition sensor, a blood pressure recognition sensor, and the like.

[0515] Figure 7 Description

[0516] Figure 7 The optoelectronic device 30, 31 and / or 32 (see Figures 4 to 6) is a schematic perspective view of an electronic equipment 1 of the present invention. As a device for displaying moving images or still images, the electronic equipment 1 may be a portable electronic equipment (such as a mobile phone, a smart phone, a tablet personal computer (PC), a mobile communication terminal, an electronic notebook, an e-book, a portable multimedia player (PMP), a navigation or ultra-mobile PC (UMPC)) and one or more suitable products (such as a television, a laptop computer, a monitor, a billboard or an Internet of Things (IOT) device). The electronic equipment 1 may be the above-mentioned product or a part thereof. In some embodiments, the electronic equipment 1 may be a wearable device (such as a smart watch, a watch phone, a glasses-type or similar display or a head-mounted display (HMD)) or a part of a wearable device. However, the embodiments of the present disclosure are not limited thereto. For example, the electronic equipment 1 may be a central information display (CID) on the dashboard and central dashboard or dashboard of the vehicle, an interior mirror display that replaces the side mirror of the vehicle, an entertainment display for the rear seat of the vehicle or a display placed behind the front seat of the vehicle, a head-up display (HUD) mounted in front of the vehicle or projected on the front window glass, or a computer-generated holographic augmented reality head-up display (CGH AR HUD). For ease of explanation, Figure 7 An embodiment is shown in which the electronic equipment 1 is a smartphone.

[0517] The electronic equipment 1 may include a display area DA and a non-display area NDA outside the display area DA. The display device of the electronic equipment 1 may realize an image through an array of a plurality of pixels two-dimensionally arranged in the display area DA.

[0518] The non-display area NDA is an area where no image is displayed, and may completely surround the display area DA. On the non-display area NDA, a driver for providing an electrical signal or power to a display device arranged on the display area DA may be arranged. On the non-display area NDA, a pad may be arranged, which is an area to which an electronic component or a printed circuit board may be electrically connected.

[0519] In the electronic device 1, the length in the x direction and the length (eg, width) in the y direction may be different from each other. Figure 7 As shown in , the length in the x direction may be shorter than the length (e.g., width) in the y direction. In one or more embodiments, the length in the x direction may be substantially the same as the length (e.g., width) in the y direction. In one or more embodiments, the length in the x direction may be longer than the length (e.g., width) in the y direction.

[0520] Figure 8 and 9A to 9C Description

[0521] Figure 8FIG. 1 is a diagram showing a vehicle 1000 according to one or more embodiments as including optoelectronic devices 30, 31 and / or 32 (see FIG. 1 ). Figures 4 to 6 )'s external view of an electronic device. Fig.9A , Fig. 9B and Fig. 9C Each schematically shows one or more embodiments of the present disclosure. Figure 8 Schematic diagram of the interior of vehicle 1000.

[0522] Reference Figure 8 , Fig.9A , Fig. 9B and Fig. 9C The vehicle 1000 may refer to one or more suitable devices for moving an object to be transported (such as a person, object, or animal) from a starting point to a destination point. The vehicle 1000 may include a vehicle traveling on a road or track, a ship moving on the sea or river, and / or an airplane flying in the air using the action of air, etc.

[0523] In one or more embodiments, the vehicle 1000 may travel on a road or track. The vehicle 1000 may move in a set or predetermined direction according to the rotation of at least one of its wheels. For example, the vehicle 1000 may include a three-wheeled or four-wheeled vehicle, a construction machine, a two-wheeled vehicle, a prime mover device, a bicycle, or a train traveling on a track.

[0524] The vehicle 1000 may include a main body having an interior and an exterior and a chassis in which mechanical equipment required for driving is installed as other parts other than the main body. The exterior of the vehicle main body may include a front panel, a hood, a top panel, a rear panel, a trunk, and / or a column provided at a boundary between doors, etc. The chassis of the vehicle 1000 may include a power generation device, a power transmission device, a drive device, a steering device, a brake device, a suspension device, a transmission device, a fuel device, front and rear wheels, and / or a left wheel, etc.

[0525] The vehicle 1000 may include side window glasses 1100 , a front window glass 1200 , side view mirrors 1300 , an instrument cluster 1400 , a central instrument panel 1500 , a passenger seat instrument panel 1600 , and a display device 2 .

[0526] The side window glass 1100 and the front window glass 1200 may be separated by pillars disposed between the side window glass 1100 and the front window glass 1200 .

[0527] The side window glass 1100 may be mounted on a side of the vehicle 1000. In some embodiments, the side window glass 1100 may be mounted on a door of the vehicle 1000. A plurality of side window glasses 1100 may be provided and may face each other. In some embodiments, the side window glass 1100 may include a first side window glass 1110 and a second side window glass 1120. In some embodiments, the first side window glass 1110 may be arranged adjacent to the instrument cluster 1400. The second side window glass 1120 may be arranged adjacent to the passenger seat instrument panel 1600.

[0528] In one or more embodiments, the side window glass 1100 may be spaced apart from each other in the x direction or the -x direction (the direction opposite to the x direction). For example, in some embodiments, the first side window glass 1110 and the second side window glass 1120 may be spaced apart from each other in the x direction or the -x direction. In other words, the imaginary straight line L connecting the side window glass 1100 may extend in the x direction or the -x direction. For example, the imaginary straight line L connecting the first side window glass 1110 and the second side window glass 1120 may extend in the x direction or the -x direction.

[0529] The front window glass 1200 may be installed at the front of the vehicle 1000. The front window glass 1200 may be disposed between the side window glasses 1100 facing each other.

[0530] The side view mirror 1300 can provide a rear view of the vehicle 1000. The side view mirror 1300 can be installed on the outside of the vehicle body. In one embodiment, a plurality of side view mirrors 1300 can be provided. One of the plurality of side view mirrors 1300 can be arranged outside the first side window glass 1110. Another of the plurality of side view mirrors 1300 can be arranged outside the second side window glass 1120.

[0531] Instrument cluster 1400 may be arranged in front of the steering wheel. Instrument cluster 1400 may include a tachometer, a speedometer, a coolant temperature gauge, a fuel gauge, a turn indicator, a high beam indicator, a warning light, a seat belt warning light, an odometer, a trip meter, an automatic shift selector indicator, a door open warning light, an engine oil warning light, and / or a low fuel warning light.

[0532] The central instrument panel 1500 may include a control panel on which a plurality of buttons for adjusting an audio device, an air conditioning device, and / or a heater of a seat are provided. The central instrument panel 1500 may be disposed on one side of the instrument cluster 1400 .

[0533] The passenger seat instrument panel 1600 may be spaced apart from the instrument cluster 1400, and the central instrument panel 1500 is disposed between the passenger seat instrument panel 1600 and the instrument cluster 1400. In some embodiments, the instrument cluster 1400 may be disposed corresponding to the driver's seat, and the passenger seat instrument panel 1600 may be disposed corresponding to the passenger seat. In some embodiments, the instrument cluster 1400 may be adjacent to the first side window glass 1110, and the passenger seat instrument panel 1600 may be adjacent to the second side window glass 1120.

[0534] In one or more embodiments, the display device 2 may include a display panel 3, and the display panel 3 may display an image. The display device 2 may be arranged inside the vehicle 1000. In some embodiments, the display device 2 may be arranged between the side window glasses 1100 facing each other. The display device 2 may be arranged on at least one of the instrument cluster 1400, the central instrument panel 1500, and the passenger seat instrument panel 1600.

[0535] The display device 2 may include an organic light-emitting display device, an inorganic electroluminescent (EL) display device, and / or a quantum dot display device, etc. Hereinafter, as the display device 2 according to one or more embodiments of the present disclosure, an organic light-emitting display device including a light-emitting device according to the present disclosure will be described as an example, but one or more suitable types (kinds) of display devices as described above may be used in the embodiments of the present disclosure.

[0536] Reference Fig.9A In one or more embodiments, the display device 2 may be arranged on the central instrument panel 1500. In some embodiments, the display device 2 may display navigation information. In some embodiments, the display device 2 may display audio, video, or information about vehicle settings.

[0537] Reference Fig. 9B In one or more embodiments, the display device 2 may be arranged on the instrument cluster 1400. When the display device 2 is arranged on the instrument cluster 1400, the instrument cluster 1400 may display driving information and the like through the display device 2. For example, the instrument cluster 1400 may be implemented digitally. The digital instrument cluster 1400 may display vehicle information and driving information as images. For example, the needle and gauge of the tachometer and one or more suitable warning light icons may be displayed through digital signals.

[0538] Reference Fig. 9CIn one or more embodiments, the display device 2 may be arranged on the passenger seat instrument panel 1600. The display device 2 may be embedded in the passenger seat instrument panel 1600 or arranged on the passenger seat instrument panel 1600. In some embodiments, the display device 2 arranged on the passenger seat instrument panel 1600 may display images related to the information displayed in the instrument cluster 1400 and / or the information displayed in the central instrument panel 1500. In one or more embodiments, the display device 2 provided on the passenger seat instrument panel 1600 may display information different from the information displayed in the instrument cluster 1400 and / or the information displayed in the central instrument panel 1500.

[0539] Manufacturing method

[0540] The layer constituting the hole transport region, the emission layer, the layer constituting the photoactive layer and / or the layer constituting the electron transport region can each be formed in a specific region by using one or more suitable methods (such as vacuum deposition, spin coating, casting, Langmuir-Blodgett (LB) deposition, inkjet printing, laser printing and / or laser induced thermal imaging, etc.).

[0541] When the layer constituting the hole transport region, the emission layer, the layer constituting the photoactive layer, and / or the layer constituting the electron transport region are each formed by vacuum deposition, the deposition may be performed at a deposition temperature of about 100° C. to about 500° C., about 10 -8 About 10 -3 Torr vacuum and approx. to about The deposition rate is carried out at .

[0542] Definition of terms

[0543] The term "C 3 -C 60 "Carbocyclyl" refers to a cyclic group that includes only carbon as a ring-forming atom (e.g., consists only of carbon as a ring-forming atom) and has 3 to 60 carbon atoms. As used herein, the term "Carbocyclyl" refers to a cyclic group that includes only carbon as a ring-forming atom (e.g., consists only of carbon as a ring-forming atom) and has 3 to 60 carbon atoms. 1 -C 60 The term "heterocyclic group" refers to a ring group having 1 to 60 carbon atoms and having a hetero atom as a ring-forming atom in addition to carbon. 3 -C 60 Carbocyclic and C 1 -C 60 The heterocyclic groups may each be a monocyclic group including one (eg, only one) ring (eg, consisting of one (eg, only one) ring) or a polycyclic group in which two or more rings are fused to each other. 1 -C 60 The heterocyclic group has 3 to 61 ring-forming atoms.

[0544] The term "cyclic group" as used herein may include (eg, simultaneously include) C 3 -C 60 Carbocyclic and C 1 -C 60 Both heterocyclic groups.

[0545] The term "π-electron-rich C 3 -C 60 The term "cyclic group" refers to a cyclic group having 3 to 60 carbon atoms and not including *-N=*' as a ring-constituting part.

[0546] As used herein, the term "π-electron-poor nitrogen-containing C 1 -C 60 The term "cyclic group" refers to a heterocyclic group having 1 to 60 carbon atoms and including *-N=*' as a ring-constituting part.

[0547] For example, C 3 -C 60 The carbocyclic group may be: i) a group T1 (e.g., one or more groups in group T1); or ii) a fused cyclic group in which two or more groups T1 (e.g., two or more groups in group T1) are fused to each other (e.g., cyclopentadienyl, adamantyl, norbornyl, phenyl, pentalenyl, naphthyl, azulenyl, indacenyl, acenaphthenyl, phenanthrenyl, anthracenyl, fluoranthenyl, triphenylene, pyrenyl, phenyl, fluorenyl, spirobifluorenyl, benzofluorenyl, indenophenanthryl or indenoanthryl),

[0548] C 1 -C 60The heterocyclic group may be: i) a group T2; ii) a fused ring group in which two or more groups T2 are fused to each other; or iii) a fused ring group in which at least one group T2 (e.g., at least one group in the group T2) and at least one group T1 (e.g., at least one group in the group T1) are fused to each other (e.g., a pyrrolyl group, a thienyl group, a furyl group, an indolyl group, a benzindolyl group, a naphthoindolyl group, an isoindolyl group, a benzisoindolyl group, a naphthoisoindolyl group, a benzothirolyl group, a benzothienyl group, a benzofuranyl group, a carbazolyl group, a dibenzothirolyl group, a dibenzothienyl group, a dibenzofuranyl group, an indenocarbazolyl group, an indolcarbazolyl group, a benzofuranocarbazolyl group, a benzothienocarbazolyl group, a benzothiorrolocarbazolyl group, a benzoindolcarbazolyl group, a benzocarbazolyl group, a benzonaphthofuranyl group, a benzonaphthothienyl group, a benzonaphthothienyl group, a benzonaphtho thiolyl, benzofuranodibenzofuranyl, benzofuranodibenzothienyl, benzothienodibenzothienyl, pyrazolyl, imidazolyl, triazolyl, oxazolyl, isoxazolyl, oxadiazolyl, thiazolyl, isothiazolyl, thiadiazolyl, benzopyrazolyl, benzimidazolyl, benzoxazolyl, benzisoxazolyl, benzothiazolyl, benzisothiazolyl, pyridinyl, pyrimidinyl, pyrazinyl, pyridazinyl, triazinyl, quinolyl, isoquinolyl, benzoquinolyl, benzisoquinolyl, quinoxalinyl, benzoquinoxalinyl, quinazoline, benzoquinazoline, phenanthroline, cinnolinyl, phthalazinyl, naphthyridinyl, imidazopyridinyl, imidazopyrimidinyl, imidazotriazine, imidazopyrazinyl, imidazopyridazinyl, azacarbazolyl, azafluorenyl, azadibenzothiazolyl, azadibenzothiopheneyl, azadibenzofuranyl, etc.),

[0549] Pi-electron-rich C 3 -C 60 The cyclic group may be: i) a group T1; ii) a fused cyclic group in which two or more groups T1 are fused to each other; iii) a group T3; iv) a fused cyclic group in which two or more groups T3 are fused to each other; or v) a fused cyclic group in which at least one group T3 and at least one group T1 are fused to each other (e.g., C 3 -C 60 carbocyclyl, 1H-pyrrolyl, thiolyl, borocyclopentyl, 2H-pyrrolyl, 3H-pyrrolyl, thienyl, furyl, indolyl, benzindolyl, naphthoindolyl, isoindolyl, benzisoindolyl, naphthoisoindolyl, benzothiolyl, benzothiophenyl, benzofuranyl, carbazolyl, dibenzothiolyl, dibenzothiophenyl, dibenzofuranyl, indenocarbazolyl, indolecarbazolyl, benzofuranocarbazolyl, benzothiophenylcarbazolyl, benzothiophenylcarbazolyl, benzothiophenylcarbazolyl, benzothiophenylcarbazolyl, benzoindolcarbazolyl, benzocarbazolyl, benzonaphthofuranyl, benzonaphthothienyl, benzonaphthothiolyl, benzofuranodibenzofuranyl, benzofuranodibenzothiophenyl, benzothiophenylodibenzothiophenyl, and the like), and

[0550] π-electron-poor nitrogen-containing C 1 -C 60 The cyclic group may be: i) a group T4; ii) a fused cyclic group in which two or more groups T4 are fused to each other; iii) a fused cyclic group in which at least one group T4 and at least one group T1 are fused to each other; iv) a fused cyclic group in which at least one group T4 and at least one group T3 are fused to each other; or v) a fused cyclic group in which at least one group T4, at least one group T1 and at least one group T3 are fused to each other (e.g., pyrazolyl, imidazolyl, triazolyl, oxazolyl, isoxazolyl, oxadiazolyl, thiazolyl, isothiazolyl, thiadiazolyl, benzopyrazole yl, benzimidazolyl, benzoxazolyl, benzisoxazolyl, benzothiazolyl, benzisothiazolyl, pyridyl, pyrimidinyl, pyrazinyl, pyridazinyl, triazinyl, quinolyl, isoquinolyl, benzoquinolyl, benzisoquinolyl, quinoxalinyl, benzoquinoxalinyl, quinazolinyl, benzoquinazolinyl, phenanthrolinyl, cinnolinyl, phthalazinyl, naphthyridinyl, imidazopyridyl, imidazopyrimidinyl, imidazotriazine, imidazopyrazinyl, imidazopyridazinyl, azacarbazolyl, azafluorenyl, azadibenzothiazolyl, azadibenzothiopheneyl, azadibenzofuranyl, etc.).

[0551] The group T1 can be cyclopropane, cyclobutane, cyclopentane, cyclohexane, cycloheptane, cyclooctane, cyclobutenyl, cyclopentenyl, cyclopentadienyl, cyclohexenyl, cyclohexadienyl, cycloheptenyl, adamantyl, norbornane (or bicyclo[2.2.1]heptane) group, norbornenyl, bicyclo[1.1.1]pentanyl, bicyclo[2.1.1]hexanyl, bicyclo[2.2.2]octane or phenyl.

[0552] The group T2 can be furanyl, thienyl, 1H-pyrrolyl, thiolyl, borocyclopentyl, 2H-pyrrolyl, 3H-pyrrolyl, imidazolyl, pyrazolyl, triazolyl, tetrazolyl, oxazolyl, isoxazolyl, oxadiazolyl, thiazolyl, isothiazolyl, thiadiazolyl, azathiarolyl, azaborolyl, pyridyl, pyrimidinyl, pyrazinyl, pyridazinyl, triazinyl, tetraazinyl, pyrrolidinyl, imidazolidinyl, dihydropyrrolyl, piperidinyl, tetrahydropyridinyl, dihydropyridinyl, hexahydropyrimidinyl, tetrahydropyrimidinyl, dihydropyrimidinyl, piperazinyl, tetrahydropyrazinyl, dihydropyrazinyl, tetrahydropyridazinyl or dihydropyridazinyl.

[0553] The group T3 may be furyl, thienyl, 1H-pyrrolyl, thiolyl or boroolyl.

[0554] The group T4 can be 2H-pyrrolyl, 3H-pyrrolyl, imidazolyl, pyrazolyl, triazolyl, tetrazolyl, oxazolyl, isoxazolyl, oxadiazolyl, thiazolyl, isothiazolyl, thiadiazolyl, azathiazolyl, azaborolyl, pyridyl, pyrimidinyl, pyrazinyl, pyridazinyl, triazinyl or tetrazinyl.

[0555] As used herein, the terms "cyclic group", "C 3 -C 60 Carbocyclic group, "C 1 -C 60 Heterocyclic group", "π-electron-rich C 3 -C 60 "Ring" or "π-electron-poor nitrogen-containing C 1 -C 60 The term "cyclic group" refers to a group condensed with any cyclic group, a monovalent group or a polyvalent group (eg, a divalent group, a trivalent group, a tetravalent group, etc.) according to the structure of the formula used by the corresponding term.

[0556] For example, the "phenyl group" may be a benzoyl group, a phenyl group, and / or a phenylene group, etc., which may be easily understood by those of ordinary skill in the art based on the structure of the formula including the "phenyl group".

[0557] Unit Price C 3 -C 60 Carbocyclic groups and monovalent C 1 -C 60 Non-limiting examples of heterocyclic groups may be C 3 -C 10 Cycloalkyl, C 1 -C 10 Heterocycloalkyl, C 3 -C 10 Cycloalkenyl, C 1 -C 10 Heterocycloalkenyl, C 6 -C 60 Aryl, C 1 -C 60 Heteroaryl, monovalent nonaromatic condensed polycyclic group and monovalent nonaromatic condensed heteropolycyclic group.

[0558] Bivalent C 3 -C 60 Carbocyclic groups and divalent C 1 -C 60 Non-limiting examples of heterocyclic groups may be C 3 -C 10 Cycloalkylene, C 1 -C 10 Heterocycloalkylene, C 3 -C 10 Cycloalkenylene, C 1 -C 10Heterocycloalkenylene, C 6 -C 60 Arylene, C 1 -C 60 a heteroarylene group, a divalent non-aromatic fused polycyclic group, and a divalent non-aromatic fused heteropolycyclic group.

[0559] As used herein, the term "C 1 -C 60 The term “alkyl” refers to a linear or branched aliphatic hydrocarbon monovalent group having 1 to 60 carbon atoms, and non-limiting examples thereof may include methyl, ethyl, n-propyl, isopropyl, n-butyl, sec-butyl, isobutyl, tert-butyl, n-pentyl, tert-pentyl, neopentyl, isopentyl, sec-pentyl, 3-pentyl, sec-isopentyl, n-hexyl, isohexyl, sec-hexyl, tert-hexyl, n-heptyl, isoheptyl, sec-heptyl, tert-heptyl, n-octyl, isooctyl, sec-octyl, tert-octyl, n-nonyl, isononyl, sec-nonyl, tert-nonyl, n-decyl, isodecyl, sec-decyl and / or tert-decyl, and the like.

[0560] As used herein, the term "C 1 -C 60 "Alkylene" refers to a group having a C 1 -C 60 Alkyl is a divalent group of substantially the same structure.

[0561] As used herein, the term "C 2 -C 60 "Alkenyl" refers to 2 -C 60 The alkyl group is a monovalent hydrocarbon group having at least one carbon-carbon double bond in the middle or at the terminal, and non-limiting examples thereof include ethenyl, propenyl and / or butenyl.

[0562] As used herein, the term "C 2 -C 60 "Alkenylene" refers to a 2 -C 60 Alkenyl is a divalent group of substantially the same structure.

[0563] As used herein, the term "C 2 -C 60 "Alkynyl" refers to a C 2 -C 60 The alkyl group is a monovalent hydrocarbon group having at least one carbon-carbon triple bond in the middle or at a terminal thereof, and non-limiting examples thereof may include ethynyl and / or propynyl, and the like.

[0564] As used herein, the term "C 2 -C 60 "Alkyne" refers to a 2 -C 60 Alkynyl is a divalent group of substantially the same structure.

[0565] As used herein, the term "C 1 -C 60 "Alkoxy" refers to -OA 101 The monovalent group represented by 101 It is C 1 -C 60 alkyl), and non-limiting examples thereof may include methoxy, ethoxy and / or isopropoxy, and the like.

[0566] As used herein, the term "C 3 -C 10 The term "cycloalkyl" refers to a monovalent saturated hydrocarbon ring group having 3 to 10 carbon atoms, and non-limiting examples thereof may be cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, cyclooctyl, adamantyl, norbornyl (or bicyclo[2.2.1]heptyl), bicyclo[1.1.1]pentyl, bicyclo[2.1.1]hexyl and / or bicyclo[2.2.2]octyl, and the like.

[0567] As used herein, the term "C 3 -C 10 "Cycloalkylene" refers to a cycloalkylene having a 3 -C 10 Cycloalkyl is a divalent group of substantially the same structure.

[0568] As used herein, the term "C 1 -C 10 The term "heterocycloalkyl" refers to a monovalent cyclic group which further includes at least one heteroatom other than carbon atoms as a ring-constituting atom and has 1 to 10 carbon atoms, and non-limiting examples thereof may be 1,2,3,4-oxatriazolidinyl, tetrahydrofuranyl and / or tetrahydrothienyl, and the like.

[0569] As used herein, the term "C 1 -C 10 "Heterocycloalkylene" refers to a 1 -C 10 Heterocycloalkyl is a divalent group of substantially the same structure.

[0570] As used herein, the term "C 3 -C 10 The term "cycloalkenyl" refers to a monovalent cyclic group having 3 to 10 carbon atoms and at least one carbon-carbon double bond in its ring and having no aromaticity, and non-limiting examples thereof may be cyclopentenyl, cyclohexenyl and / or cycloheptenyl, etc.

[0571] As used herein, the term "C 3 -C 10 "Cycloalkenylene" refers to a 3 -C 10Cycloalkenyl is a divalent group of substantially the same structure.

[0572] As used herein, the term "C 1 -C 10 The term "heterocycloalkenyl group" refers to a monovalent ring group of 1 to 10 carbon atoms which further includes at least one heteroatom other than carbon atoms as a ring-forming atom in its ring structure and has at least one double bond. 1 -C 10 Non-limiting examples of the heterocycloalkenyl group may include 4,5-dihydro-1,2,3,4-oxatriazolyl, 2,3-dihydrofuranyl, and / or 2,3-dihydrothienyl, and the like.

[0573] As used herein, the term "C 1 -C 10 "Heterocycloalkenylene" refers to a 1 -C 10 Heterocycloalkenyl is a divalent group of substantially the same structure.

[0574] As used herein, the term "C 6 -C 60 "Aryl" refers to a monovalent group of a carbocyclic aromatic system having 6 to 60 carbon atoms.

[0575] As used herein, the term "C 6 -C 60 The term "arylene" refers to a divalent group of a carbocyclic aromatic system having 6 to 60 carbon atoms.

[0576] C 6 -C 60 Non-limiting examples of aryl groups include phenyl, pentalenyl, naphthyl, azulenyl, indacenyl, acenaphthenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, The invention also includes the following: 1. a phenyl group, 2. a phenyl group, 3. a phenyl group, 4. a phenyl group, 5. a phenyl group, 6. a phenyl group, 7. a phenyl group, 8. a phenyl group, 9. a phenyl group, 10. a phenyl group, 11. a phenyl group, 12. a phenyl group, 13. a phenyl group, 14. a phenyl group, 15. a phenyl group, 16. a phenyl group, 17. a phenyl group, 18. a phenyl group, 19. a phenyl group, 20. a phenyl group, 21. a phenyl group, 22. a phenyl group, 23. a phenyl group, 24. a phenyl group, 25. a phenyl group, 26. a phenyl group, 27. a phenyl group, 28. a phenyl group, 29. a

[0577] When C 6 -C 60 Aryl and C 6 -C 60 When the arylene groups each include two or more rings, the rings may be fused to each other.

[0578] As used herein, the term "C 1 -C 60 The "heteroaryl group" refers to a monovalent group having a heterocyclic aromatic system of 1 to 60 carbon atoms which further includes at least one hetero atom other than carbon atoms as a ring-constituting atom.

[0579] As used herein, the term "C1 -C 60 The term "heteroarylene group" refers to a divalent group having a heterocyclic aromatic system of 1 to 60 carbon atoms which further includes at least one hetero atom other than carbon atoms as a ring-constituting atom.

[0580] C 1 -C 60 Non-limiting examples of heteroaryl groups can be pyridinyl, pyrimidinyl, pyrazinyl, pyridazinyl, triazinyl, quinolyl, benzoquinolyl, isoquinolyl, benzoisoquinolyl, quinoxalinyl, benzoquinoxalinyl, quinazolinyl, benzoquinazolinyl, cinnolinyl, phenanthrolinyl, phthalazinyl and / or naphthyridinyl, and the like.

[0581] When C 1 -C 60 Heteroaryl and C 1 -C 60 When the heteroarylene groups each include two or more rings, the rings may be fused to each other.

[0582] As used herein, the term "monovalent non-aromatic fused polycyclic group" refers to a monovalent group (e.g., having 8 to 60 carbon atoms) having two or more rings fused to each other, only carbon atoms as ring-forming atoms, and no aromaticity in its entire molecular structure when viewed as a whole. Non-limiting examples of the monovalent non-aromatic fused polycyclic group may be indenyl, fluorenyl, spiro-bifluorenyl, benzofluorenyl, inphenanthracenyl, and / or indenoanthryl, etc.

[0583] The term "divalent non-aromatic condensed polycyclic group" as used herein refers to a divalent group having substantially the same structure as the above-mentioned monovalent non-aromatic condensed polycyclic group.

[0584] The term "monovalent non-aromatic fused heteropolycyclic group" as used herein refers to a monovalent group (e.g., having 1 to 60 carbon atoms) having two or more rings fused to each other, further including at least one heteroatom other than carbon atoms as a ring-constituting atom, and having non-aromaticity in its entire molecular structure when viewed as a whole. Non-limiting examples of the monovalent non-aromatic condensed heteropolycyclic group may be pyrrolyl, thienyl, furanyl, indolyl, benzindolyl, naphthoindolyl, isoindolyl, benzisoindolyl, naphthoisoindolyl, benzothioyl, benzothiophenyl, benzofuranyl, carbazolyl, dibenzothioyl, dibenzothiophenyl, dibenzofuranyl, azacarbazolyl, azafluorenyl, azadibenzothioyl, azadibenzothiophenyl, azadibenzofuranyl, pyrazolyl, imidazolyl, triazolyl, tetrazolyl, oxazolyl, isoxazolyl, thiazolyl, isothiazolyl, oxadiazolyl, thiadiazolyl , benzopyrazolyl, benzimidazolyl, benzoxazolyl, benzothiazolyl, benzoxadiazolyl, benzothiadiazolyl, imidazopyridyl, imidazopyrimidinyl, imidazotriazine, imidazopyrazinyl, imidazopyridazine, indenocarbazolyl, indolecarbazolyl, benzofuranocarbazolyl, benzothiophenecarbazolyl, benzothiorrolocarbazolyl, benzoindolecarbazolyl, benzocarbazolyl, benzonaphthofuranyl, benzonaphthothienyl, benzonaphthothiorryl, benzofuranodibenzofuranyl, benzofuranodibenzothienyl and / or benzothiophenedibenzothienyl, etc.

[0585] The term "divalent non-aromatic condensed heteropolycyclic group" as used herein refers to a divalent group having substantially the same structure as the above-mentioned monovalent non-aromatic condensed heteropolycyclic group.

[0586] As used herein, the term "C 6 -C 60 "Aryloxy" means -OA 102 (Among them, A 102 It is C 6 -C 60 aryl).

[0587] As used herein, the term "C 6 -C 60 "Arylthio" means -SA 103 (Among them, A 103 It is C 6 -C 60 aryl).

[0588] As used herein, the term "C 7 -C 60 "Arylalkyl" refers to -A 104 A 105 (Among them, A 104 It is C 1 -C 54Alkylene, and A 105 It is C 6 -C 59 aryl).

[0589] As used herein, the term "C 2 -C 60 "Heteroaralkyl" refers to -A 106 A 107 (Among them, A 106 It is C 1 -C 59 Alkylene, and A 107 It is C 1 -C 59 heteroaryl).

[0590] As used herein, the term "R 10a ” means:

[0591] deuterium, -F, -Cl, -Br, -I, hydroxy, cyano or nitro;

[0592] C 1 -C 60 Alkyl, C 2 -C 60 Alkenyl, C 2 -C 60 Alkynyl or C 1 -C 60 Alkoxy, each unsubstituted or substituted with deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, C 3 -C 60 Carbocyclic group, C 1 -C 60 Heterocyclic group, C 6 -C 60 Aryloxy, C 6 -C 60 Arylthio, C 7 -C 60 Aralkyl, C 2 -C 60 Heteroaralkyl, -Si(Q 11 )(Q 12 )(Q 13 )、-N(Q 11 )(Q 12 )、-B(Q 11 )(Q 12 )、-C(=O)(Q 11 )、-S(=O) 2 (Q 11 )、-P(=O)(Q 11 )(Q 12 ) or any combination thereof;

[0593] C 3 -C 60 Carbocyclic group, C 1 -C 60 Heterocyclic group, C 6 -C 60 Aryloxy, C 6 -C 60 Arylthio, C 7 -C 60 Arylalkyl or C 2 -C 60 heteroarylalkyl, each unsubstituted or substituted with deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, C 1 -C 60 Alkyl, C 2 -C 60 Alkenyl, C 2 -C 60 Alkynyl, C 1 -C 60 Alkoxy, C 3 -C 60 Carbocyclic group, C 1 -C 60 Heterocyclic group, C 6 -C 60 Aryloxy, C 6 -C 60 Arylthio, C 7 -C 60 Aralkyl, C 2 -C 60 Heteroaralkyl, -Si(Q 21 )(Q 22 )(Q 23 )、-N(Q 21 )(Q 22 )、-B(Q 21 )(Q 22 )、-C(=O)(Q 21 )、-S(=O) 2 (Q 21 )、-P(=O)(Q 21 )(Q 22 ) or any combination thereof; or

[0594] -Si(Q 31 )(Q 32 )(Q 33 )、-N(Q 31 )(Q 32 )、-B(Q 31 )(Q 32 )、-C(=O)(Q 31 )、-S(=O) 2 (Q31 ) or -P(=O)(Q 31 )(Q 32 ).

[0595] The Q used in this paper 1 To Q 3 , Q 11 To Q 13 , Q 21 To Q 23 and Q 31 To Q 33 can be independently: hydrogen; deuterium; -F; -Cl; -Br; -I; hydroxyl; cyano; nitro; C 1 -C 60 Alkyl; C 2 -C 60 Alkenyl; C 2 -C 60 Alkynyl; C 1 -C 60 alkoxy; each unsubstituted or substituted with deuterium, -F, cyano, C 1 -C 60 Alkyl, C 1 -C 60 Alkoxy, phenyl, biphenyl or any combination thereof substituted C 3 -C 60 Carbocyclic or C 1 -C 60 Heterocyclic group; C 7 -C 60 Aralkyl; or C 2 -C 60 Heteroaralkyl.

[0596] As used herein, the term "heteroatom" refers to any atom other than a carbon atom and a hydrogen atom. Non-limiting examples of heteroatoms are O, S, N, P, Si, B, Ge, Se, and any combination thereof.

[0597] The term “transition metal” used herein includes hafnium (Hf), tantalum (Ta), tungsten (W), rhenium (Re), osmium (Os), iridium (Ir), platinum (Pt) and / or gold (Au), etc.

[0598] In the present disclosure, "D" refers to deuterium, "Ph" refers to phenyl, "Me" refers to methyl, "Et" refers to ethyl, "tert-Bu" or "Bu t ” refers to tert-butyl, and “OMe” refers to methoxy.

[0599] As used herein, the term "CF 3 ” means “methyl substituted by F”. In other words, “CF 3 " is a substituted alkyl group having F as a substituent.

[0600] As used herein, the term "biphenyl" refers to a "phenyl group substituted by a phenyl group". In other words, a "biphenyl group" is a group having C 6 -C 60 A phenyl group substituted with an aryl group as a substituent.

[0601] As used herein, the term "terphenyl" refers to a "phenyl group substituted by a biphenyl group". In other words, a "terphenyl group" is a group having a C 6 -C 60 Aryl substituted C 6 -C 60 A phenyl group substituted with an aryl group as a substituent.

[0602] Unless otherwise defined, *, *' and *" as used herein each refer to the binding site to adjacent atoms in the corresponding formula or moiety.

[0603] In the present disclosure, the x-direction, y-direction, and z-direction are not limited to the three axes in the orthogonal coordinate system, and can be broadly interpreted as including these axes. For example, the x-direction, y-direction, and z-direction can refer to axes that are orthogonal to each other, or can refer to axes in different directions that are not orthogonal to each other.

[0604] Hereinafter, embodiments of the optoelectronic device of the present disclosure will be described in more detail with reference to the following examples and comparative examples.

[0605] Evaluation Example 1

[0606] In order to evaluate the properties of each of the compounds A4, A9, A16, B1, B22 and B41 as donors and the compounds C1, C3, C4, C5 and C7, fullerene 60 and fullerene 70 as acceptors, the HOMO energy level, LUMO energy level and maximum absorption wavelength (λ abs ), and the results thereof are shown in Tables 1 and 2. In addition, the difference between the LUMO energy level and the HOMO energy level of each compound was calculated, and the results thereof are also provided in Tables 1 and 2.

[0607] The energy levels in the structurally enhanced or optimized states and excited states were evaluated by quantum simulation / calculation based on time-dependent density functional theory at the B3LYP / 6-311G** level using the Gaussian program.

[0608] Table 1

[0609]

[0610]

[0611] Table 2

[0612]

[0613]

[0614] Example 1

[0615] As an anode, a 15Ω / cm 2 A glass substrate of ITO (product of Corning Inc.) was cut into a size of 50 mm×50 mm×0.7 mm, ultrasonically treated with isopropyl alcohol and pure water for 5 minutes each, washed by irradiating ultraviolet rays and exposing it to ozone for 30 minutes, and then mounted on a vacuum deposition apparatus.

[0616] 2-TNATA was vacuum deposited on the anode to form A hole injection layer having a thickness of 1000 Å was formed. 4,4'-bis[N-(1-naphthyl)-N-phenylamino]biphenyl (NPB) was vacuum deposited on the hole injection layer to form a The hole transport layer has a thickness of .

[0617] Compound A4 is vacuum deposited on the hole transport layer to form a The compound C1 is vacuum deposited on the first layer to form a The thickness of the second layer.

[0618] Subsequently, BAlq was vacuum deposited on the second layer to form a A hole blocking layer with a thickness of , and ET1 is vacuum deposited on the hole blocking layer to form a Liq is vacuum deposited on the electron transport layer to form an electron transport layer having a thickness of The electron injection layer has a thickness of .

[0619] AgMg is deposited on the electron injection layer to form a A cathode with a thickness of is formed, thereby completing the fabrication of the optoelectronic device.

[0620]

[0621] Examples 2 to 30 and Comparative Examples 1 to 12

[0622] Each optoelectronic device was manufactured in substantially the same manner as in Example 1, except that when forming the first layer included in the photoactive layer, the donors shown in Tables 3 to 8 were each used, and when forming the second layer included in the photoactive layer, the acceptors shown in Tables 3 to 8 were each used.

[0623]

[0624] Evaluation Example 2

[0625] In order to evaluate the characteristics of each optoelectronic device manufactured in Examples 1 to 30 and Comparative Examples 1 to 12, the external quantum efficiency (EQE) and the dark current density (J dark ), and the results are shown in Tables 3 to 8.

[0626] For external quantum efficiency (EQE), current values ​​generated by irradiating red light having a wavelength of about 600 nm to about 750 nm to the optoelectronic devices manufactured in Examples 1 to 30 and Comparative Examples 1 to 12 were respectively measured using an external quantum efficiency measurement apparatus (K3100, McScience, South Korea) and an ammeter (Keithley, Tektronix, USA), and the EQE value was calculated from the current values.

[0627] For the dark current density (J dark ), and the dark current density at a reverse bias of −3 V was measured by using an electro-optical characteristic evaluation device (K3100, McScience, Korea) and an ammeter (Keithley, Tektronix, USA) while applying a voltage to the anode.

[0628] Table 3

[0629]

[0630] Table 4

[0631]

[0632] Table 5

[0633]

[0634]

[0635] Table 6

[0636]

[0637] Table 7

[0638]

[0639] Table 8

[0640]

[0641]

[0642] Referring to Tables 3 to 8, the optoelectronic devices according to Examples 1 to 30 satisfying Expression 1 each have an external quantum efficiency better than that of the optoelectronic devices according to Comparative Examples 1 to 12 not satisfying Expression 1.

[0643] When(E D LUMO -E A LUMO ) / (E D LUMO -E D HOMO ) is less than 0.05, the excitons generated from the donor may not be substantially transferred to the acceptor.

[0644] When(E D LUMO -E A LUMO ) / (E D LUMO -E D HOMO ) is greater than 0.5, the holes of the donor and the electrons of the acceptor may be recombined, and excitons may be substantially not generated.

[0645] When using a capacitor having an E outside the range of 3eV to 4eV A LUMO -E A HOMO The charge balance may deteriorate when the acceptor has a value of D LUMO -E A LUMO ) / (E D LUMO -E D HOMO ) is in the range of 0.05 to 0.5, the charge transport characteristics and the exciton generation characteristics may be reduced.

[0646] Therefore, when both a donor that absorbs red light and an acceptor that satisfies Expression 1 are used (eg, simultaneously) and Expression 2 is satisfied, the external quantum efficiency of the optoelectronic device can be improved.

[0647] In the present disclosure, it will be understood that the terms “include,” “comprises,” or “have / has” illustrate the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0648] Throughout this disclosure, when referring to placing a component such as a layer, film, region, or plate "on" another component, it will be understood that the component may be directly on the other component or another component may be interposed between the component and the other component. In some embodiments, "directly on" may refer to the absence of additional layers, films, regions, plates, etc. between the layer, film, region, plate, etc. and other components. For example, "directly on" may refer to disposing two layers or two components without using an additional component (such as an adhesive component) between the two layers or two components.

[0649] In the present disclosure, although the terms "first", "second", etc. may be used herein to describe one or more elements, components, regions and / or layers, these elements, components, regions and / or layers should not be limited by these terms. These terms are only used to distinguish one component from another component.

[0650] Unless the context clearly indicates otherwise, as used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well. In addition, when describing embodiments of the present disclosure, the use of "may" refers to "one or more embodiments of the present disclosure."

[0651] As used herein, the terms "substantially", "approximately" or similar terms are used as approximate terms rather than terms of degree, and are intended to take into account the inherent deviations in measured or calculated values ​​that will be recognized by those of ordinary skill in the art. "Approximately" as used herein includes the stated value and means within an acceptable range of deviations of the specific value as determined by those of ordinary skill in the art taking into account the measurement in question and the errors associated with the measurement of the particular quantity (i.e., the limitations of the measurement system). For example, "approximately" can mean within one or more standard deviations, or within ±30%, ±20%, ±10%, or ±5% of the stated value.

[0652] Any numerical range described in this article is intended to include all sub-ranges of the same numerical precision contained in the described range. For example, the range of "1.0 to 10.0" is intended to include all sub-ranges between the described minimum value 1.0 and the described maximum value 10.0 (and including the described minimum value 1.0 and the described maximum value 10.0), that is, having a minimum value equal to or greater than 1.0 and a maximum value equal to or less than 10.0, such as, for example, 2.4 to 7.6. Any maximum numerical limit described in this article is intended to include all lower numerical limits contained therein, and any minimum numerical limit described in this disclosure is intended to include all higher numerical limits contained therein. Therefore, the applicant reserves the right to modify this disclosure (including claims) to explicitly describe any sub-range contained in the range explicitly described in this civilization.

[0653] Any suitable hardware, firmware (e.g., a dedicated integrated circuit), software, or a combination of software, firmware, and hardware may be used to implement the optoelectronic device, light-emitting device, display device, electronic device, electronic device / electronic equipment, or any other related device or component according to the embodiments of the present disclosure described herein. For example, the various components of the device may be formed on an integrated circuit (IC) chip or on a separate IC chip. In addition, the various components of the device may be implemented on a flexible printed circuit film, a tape carrier package (TCP), a printed circuit board (PCB), or formed on a substrate. In addition, the various components of the device may be processes or threads running on one or more processors in one or more computing devices, which execute computer program instructions and interact with other system components to perform the various functions described herein. The computer program instructions are stored in a memory, and the memory may be implemented in a computing device using a standard memory device (such as a random access memory (RAM) as an example). The computer program instructions may also be stored in other non-temporary computer-readable media (such as a CD-ROM, a flash drive, etc. as an example). In addition, those skilled in the art should recognize that the functions of various computing devices may be combined or integrated into a single computing device, or the functions of a particular computing device may be distributed to one or more other computing devices without departing from the scope of the embodiments of the present disclosure.

[0654] It should be understood that the embodiments described herein should be considered in a descriptive sense only and not for the purpose of limitation. The description of features or aspects within each embodiment should generally be considered to be applicable to other similar features or aspects in other embodiments. Although one or more embodiments have been described with reference to the accompanying drawings, it will be understood by those of ordinary skill in the art that one or more suitable changes in form and details may be made therein without departing from the spirit and scope as defined by the appended claims and their equivalents.

Claims

1. An optoelectronic device, wherein: The optoelectronic device comprises: a first electrode; a second electrode facing the first electrode; and a photoactive layer between the first electrode and the second electrode, wherein the photoactive layer comprises an acceptor satisfying Expression 1 and a donor having a maximum absorption wavelength of 600 nm to 750 nm, and the photoactive layer Satisfies Expression 2: Expression 1 3eV≤E A LUMO -AND A HOMO ≤4eV Expression 2 0.05≤(E D LUMO -AND A LUMO ) / (AND D LUMO -AND D HOMO )≤0.5 In Expression 1 and Expression 2, E D LUMO represents the lowest unoccupied molecular orbital energy level of the donor, E D HOMO represents the highest occupied molecular orbital energy level of the donor, E A LUMO represents the lowest unoccupied molecular orbital energy level of the acceptor, and E A HOMO represents the highest occupied molecular orbital energy level of the receptor.

2. The optoelectronic device according to claim 1, wherein: The donor satisfies Expression 3: Expression 3 1.0eV≤E D LUMO -E D HOMO ≤2.5eV In Expression 3, E D LUMO and E D HOMO Each is the same as described in Expression 2.

3. The optoelectronic device according to claim 1, wherein: The optoelectronic device also satisfies Expression 4: Expression 4 AND A LUMO ≤E D LUMO In Expression 4, E D LUMO and E A LUMO Each is the same as described in Expression 1 and Expression 2.

4. The optoelectronic device according to claim 1, wherein: The optoelectronic device also satisfies Expression 5: Expression 5 AND A HOMO ≤E D HOMO In Expression 5, E D HOMO and E A HOMO Each is the same as described in Expression 1 and Expression 2.

5. The optoelectronic device according to claim 1, wherein: The receptor does not include fullerene compounds.

6. The optoelectronic device according to claim 1, wherein: The receptor does not include a five-membered ring.

7. The optoelectronic device according to claim 1, wherein: The receptor is transparent in the visible region.

8. The optoelectronic device according to claim 1, wherein: The receptor is represented by Formula 1: Among them, in formula 1, X1 to X4 are each independently O, S or Se, Z1 is O or N(R5), Z2 is O or N(R6), R1 to R6 are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, unsubstituted or substituted with at least one R 10a Substituted C1-C 60 Alkyl, unsubstituted or substituted with at least one R 10a Substituted C2-C 60 Alkenyl, unsubstituted or substituted with at least one R 10a Substituted C2-C 60 Alkynyl, unsubstituted or substituted with at least one R 10a Substituted C1-C 60 Alkoxy, unsubstituted or substituted with at least one R 10a Substituted C3-C 60 Carbocyclic group, unsubstituted or substituted with at least one R 10a Substituted C1-C 60 Heterocyclic group, unsubstituted or substituted with at least one R 10a Substituted C6-C 60 Aryloxy, unsubstituted or substituted with at least one R 10a Substituted C6-C 60 Arylthio, unsubstituted or substituted with at least one R 10a Substituted C7-C 60 Arylalkyl, unsubstituted or substituted with at least one R 10a Substituted C2-C 60 heteroarylalkyl, -C(Q1)(Q2)(Q3), -Si(Q1)(Q2)(Q3), -N(Q1)(Q2), -B(Q1)(Q2), -C(=O)(Q1), -S(=O)2(Q1), or -P(=O)(Q1)(Q2), R 10a yes: deuterium, -F, -Cl, -Br, -I, hydroxy, cyano or nitro; C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl or C1-C 60 Alkoxy, each unsubstituted or substituted with deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, C3-C 60 Carbocyclic group, C1-C 60 Heterocyclic group, C6-C 60 Aryloxy, C6-C 60 Arylthio, C7-C 60 Aralkyl, C2-C 60 Heteroaralkyl, -Si(Q 11 )(Q 12 )(Q 13 )、-N(Q 11 )(Q 12 )、-B(Q 11 )(Q 12 )、-C(=O)(Q 11 )、-S(=O)2(Q 11 )、-P(=O)(Q 11 )(Q 12 ) or any combination thereof; C3-C 60 Carbocyclic group, C1-C 60 Heterocyclic group, C6-C 60 Aryloxy, C6-C 60 Arylthio, C7-C 60 Arylalkyl or C2-C 60 heteroarylalkyl, each unsubstituted or substituted with deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl, C1-C 60 Alkoxy, C3-C 60 Carbocyclic group, C1-C 60 Heterocyclic group, C6-C 60 Aryloxy, C6-C 60 Arylthio, C7-C 60 Aralkyl, C2-C 60 Heteroaralkyl, -Si(Q 21 )(Q 22 )(Q 23 )、-N(Q 21 )(Q 22 )、-B(Q 21 )(Q 22 )、-C(=O)(Q 21 )、-S(=O)2(Q 21 )、-P(=O)(Q 21 )(Q 22 ) or any combination thereof; or -Si(Q 31 )(Q 32 )(Q 33 )、-N(Q 31 )(Q 32 )、-B(Q 31 )(Q 32 )、-C(=O)(Q 31 )、-S(=O)2(Q 31 )或-P(=O)(Q 31 )(Q 32 ), Q1 to Q3, Q 11 To Q 13 , Q 21 To Q 23 and Q 31 To Q 33 Each independently is: Hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl or C1-C 60 Alkoxy; or C3-C 60 Carbocyclic group, C1-C 60 Heterocyclic group, C7-C 60 Arylalkyl or C2-C 60 heteroarylalkyl, each unsubstituted or substituted with deuterium, -F, cyano, C1-C 60 Alkyl, C1-C 60 The present invention is substituted with alkoxy, phenyl, biphenyl or any combination thereof.

9. The optoelectronic device according to claim 1, wherein: The receptor is at least one selected from Compound C1 to Compound C17:

10. The optoelectronic device according to claim 1, wherein: The donor has a maximum absorption wavelength of 630 nm to 700 nm.

11. The optoelectronic device according to claim 1, wherein: The donor does not include boron.

12. The optoelectronic device according to claim 1, wherein: The donor is represented by any one selected from Formula 2 and Formula 3: Formula 2 Formula 3 Formula 3-1 In Formula 2, Formula 3 and Formula 3-1, L1 is a single bond, unsubstituted or replaced by at least one R 10a Substituted C1-C 20 Alkylene, unsubstituted or substituted with at least one R 10a Substituted C3-C 60 Carbocyclic group, either unsubstituted or substituted with at least one R 10a Substituted C1-C 60 Heterocyclic group, a1 is an integer from 1 to 3, Ar1 is a group represented by formula 3-1, Ar2 and Ar3 are each independently unsubstituted or substituted with at least one R 10a Substituted C3-C 60 The carbocyclic group is either unsubstituted or substituted with at least one R 10a Substituted C1-C 60 Heterocyclic group, X 11 To X 13 are each independently O, S or Se, X 21 is N(R 21 ), O, S or Se, X 22 is N(R 22 ), O, S or Se, X 23 This is C(R) 23a )(R 23b ), N(R 23 ), O, S or Se, Y1 is N or C (R 24 ), Y2 is N or C (R 25 ), Y3 is N or C (R 26 ), Y4 is N or C (R 27 ), Y5 is N or C (R 28 ), Y6 is N or C (R 29 ), R 11 To R 18 , R 21 To R 29 , R 23a and R 23b Each is independently hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, unsubstituted or substituted with at least one R 10a Substituted C1-C 60 Alkyl, unsubstituted or substituted with at least one R 10a Substituted C2-C 60 Alkenyl, unsubstituted or substituted with at least one R 10a Substituted C2-C 60 Alkynyl, unsubstituted or substituted with at least one R 10a Substituted C1-C 60 Alkoxy, unsubstituted or substituted with at least one R 10a Substituted C3-C 60 Carbocyclic group, unsubstituted or substituted with at least one R 10a Substituted C1-C 60 Heterocyclic group, unsubstituted or substituted with at least one R 10a Substituted C6-C 60 Aryloxy, unsubstituted or substituted with at least one R 10a Substituted C6-C 60 Arylthio, unsubstituted or substituted with at least one R 10a Substituted C7-C 60 Arylalkyl, unsubstituted or substituted with at least one R 10a Substituted C2-C 60 heteroarylalkyl, -C(Q1)(Q2)(Q3), -Si(Q1)(Q2)(Q3), -N(Q1)(Q2), -B(Q1)(Q2), -C(=O)(Q1), -S(=O)2(Q1), or -P(=O)(Q1)(Q2), R 10a yes: deuterium, -F, -Cl, -Br, -I, hydroxy, cyano or nitro; C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl or C1-C 60 Alkoxy, each unsubstituted or substituted with deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, C3-C 60 Carbocyclic group, C1-C 60 Heterocyclic group, C6-C 60 Aryloxy, C6-C 60 Arylthio, C7-C 60 Aralkyl, C2-C 60 Heteroaralkyl, -Si(Q 11 )(Q 12 )(Q 13 )、-N(Q 11 )(Q 12 )、-B(Q 11 )(Q 12 )、-C(=O)(Q 11 )、-S(=O)2(Q 11 )、-P(=O)(Q 11 )(Q 12 ) or any combination thereof; C3-C 60 Carbocyclic group, C1-C 60 Heterocyclic group, C6-C 60 Aryloxy, C6-C 60 Arylthio, C7-C 60 Arylalkyl or C2-C 60 heteroarylalkyl, each unsubstituted or substituted with deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl, C1-C 60 Alkoxy, C3-C 60 Carbocyclic group, C1-C 60 Heterocyclic group, C6-C 60 Aryloxy, C6-C 60 Arylthio, C7-C 60 Aralkyl, C2-C 60 Heteroaralkyl, -Si(Q 21 )(Q 22 )(Q 23 )、-N(Q 21 )(Q 22 )、-B(Q 21 )(Q 22 )、-C(=O)(Q 21 )、-S(=O)2(Q 21 )、-P(=O)(Q 21 )(Q 22 ) or any combination thereof; or -Si(Q 31 )(Q 32 )(Q 33 )、-N(Q 31 )(Q 32 )、-B(Q 31 )(Q 32 )、-C(=O)(Q 31 )、-S(=O)2(Q 31 ) or -P(=O)(Q 31 )(Q 32 ), Q1 to Q3, Q 11 To Q 13 , Q 21 To Q 23 and Q 31 To Q 33 Each independently is: Hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl or C1-C 60 Alkoxy; or C3-C 60 Carbocyclic group, C1-C 60 Heterocyclic group, C7-C 60 Arylalkyl or C2-C 60 Heteroaralkyl, each unsubstituted or substituted with deuterium, -F, cyano, C1-C 60 Alkyl, C1-C 60 Alkoxy, phenyl, biphenyl or any combination thereof, b1 is an integer from 0 to 4, and *' and *" each indicate a binding site to an adjacent atom.

13. The optoelectronic device according to claim 1, wherein: The donor is at least one selected from Compound A1 to Compound A32 and Compound B1 to Compound B50:

14. The optoelectronic device according to claim 1, wherein: The photoactive layer is a vacuum deposited photoactive layer.

15. The optoelectronic device according to claim 1, wherein: The photoactive layer is a single layer.

16. The optoelectronic device according to claim 1, wherein: The optoelectronic device further comprises: a hole transport region between the first electrode and the photoactive layer; and An electron transport region is between the photoactive layer and the second electrode.

17. The optoelectronic device according to claim 16, wherein: The photoactive layer comprises: a first layer adjacent to the hole transport region; and a second layer, adjacent to the electron transport region, The first layer includes the donor, and The second layer includes the receptor.

18. The optoelectronic device according to claim 17, wherein: The photoactive layer further includes a third layer between the first layer and the second layer, the third layer including the donor and the acceptor.

19. An electronic device, wherein: The electronic device comprises: The optoelectronic device according to claim 1; and A light emitting device includes an emitting layer that does not overlap with the photoactive layer.

20. An electronic device comprising the electronic device according to claim 19, wherein: The electronic equipment is selected from at least one of a flat panel display, a curved display, a computer monitor, a medical monitor, a television, a billboard, an indoor or outdoor light and / or a light for signaling, a head-up display, a fully transparent or partially transparent display, a flexible display, a rollable display, a foldable display, a stretchable display, a laser printer, a phone, a portable phone, a tablet personal computer, a tablet phone, a personal digital assistant, a wearable device, a laptop computer, a digital camera, a video camera, a viewfinder, a microdisplay, a three-dimensional display, a virtual reality display or an augmented reality display, a vehicle, a video wall with multiple displays spliced ​​together, a theater screen or a stadium screen, a light therapy device and a sign.

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