Organic optoelectronic devices, compounds, compositions and display devices therefor

Abstract

A compound for an organic photodiode, a composition for an organic photodiode including the same, an organic photodiode, and a display device. The compound for an organic photodiode is represented by Chemical Formula 1 and Chemical Formula 2. In Chemical Formula 1 and Chemical Formula 2, the definition of each substituent is the same as disclosed in the specification. The present invention can achieve an organic photodiode having high efficiency and long lifespan.

Description

Technical Field

[0001] This invention discloses a compound for use in an organic optoelectronic device, a composition for use in an organic optoelectronic device, an organic optoelectronic device, and a display device. Background Technology

[0002] Organic photoelectric devices (organic photodiodes) are devices that convert electrical energy into light energy, and vice versa.

[0003] Organic optoelectronic devices can be classified according to their driving principle as follows. One type is the photodiode, in which excitons are generated by light energy, split into electrons and holes, and transferred to different electrodes to generate electrical energy. The other type is the light-emitting diode, in which voltage or current is supplied to the electrodes to generate light energy from electrical energy.

[0004] Examples of organic optoelectronic devices include organic photoelectric devices, organic light-emitting diodes, organic solar cells, and organic photoconductor drums.

[0005] Among these, organic light-emitting diodes (OLEDs) have recently attracted attention due to the increasing demand for flat panel displays. OLEDs convert electrical energy into light by applying current to organic light-emitting materials, and their performance is affected by the organic materials disposed between the electrodes. Summary of the Invention

[0006] Technical challenges

[0007] One embodiment provides a compound for use in organic optoelectronic devices, which enables organic optoelectronic devices with high efficiency and long lifespan.

[0008] Another embodiment provides a composition for an organic optoelectronic device, comprising the compound for the organic optoelectronic device.

[0009] Another embodiment provides an organic optoelectronic device comprising the compound for the organic optoelectronic device or the composition for the organic optoelectronic device.

[0010] Another embodiment provides a display device that includes the aforementioned organic optoelectronic device.

[0011] Solution to the problem

[0012] According to one embodiment, a compound for an organic optoelectronic device is provided, represented by a combination of chemical formula 1 and chemical formula 2.

[0013]

[0014]

[0015] In chemical formula 1 and chemical formula 2,

[0016] X is O or S.

[0017] Two adjacent carbons in a1* to a4* are independently linked to b1* and b2*, respectively.

[0018] b1* and b2* are independent connecting carbons.

[0019] The remaining members of a1* to a4* that are not connected to b1* and b2* are independently CR. a ,

[0020] R a With R 1 To R 8 Independently, it is hydrogen, deuterium, cyano, halogen, substituted or unsubstituted C1 to C30 alkyl, substituted or unsubstituted C6 to C30 aryl, substituted or unsubstituted C2 to C30 heterocyclic, or a combination thereof, and

[0021] R a With R 1 To R 8 At least one of them is a group represented by chemical formula A.

[0022] [Chemical Formula A]

[0023]

[0024] In chemical formula A,

[0025] Z 1 To Z 5 Independent of N or CR b ,

[0026] Z 1 To Z 5 At least one of them is N,

[0027] R b Independently, it is hydrogen, deuterium, substituted or unsubstituted C1 to C20 alkyl, substituted or unsubstituted C6 to C30 aryl, or a combination thereof.

[0028] R 1 To R 4 With R bIndependently existing or connected to adjacent groups to form substituted or unsubstituted aliphatic monocyclic or polycyclic, substituted or unsubstituted aromatic monocyclic or polycyclic, or substituted or unsubstituted heteroaromatic monocyclic or polycyclic, and

[0029] The substitution means that at least one hydrogen atom is replaced by a deuterium, cyano, C1 to C10 alkyl or C6 to C20 aryl group.

[0030] According to another embodiment, the composition for an organic optoelectronic device includes a first compound for an organic optoelectronic device and a second compound for an organic optoelectronic device, wherein the first compound for an organic optoelectronic device includes the aforementioned compound for an organic optoelectronic device, and the second compound for an organic optoelectronic device is represented by a combination of chemical formula 3 or chemical formula 4 and chemical formula 5.

[0031] [Chemical Formula 3]

[0032]

[0033] In chemical formula 3,

[0034] Ar 1 It is a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C2 to C30 heterocyclic group, or a combination thereof, and

[0035] Ring B is represented by the chemical formula B-1 or B-2.

[0036]

[0037] In chemical formula B-1, *C1 and *C2 are independently connecting carbon atoms.

[0038] In chemical formula B-2, the two adjacent carbons in *d1 to *d4 are independently bonded carbons, and the other two unbonded carbons are independently carbons (CRs). d ,

[0039] R d With R 9 With R 14 Independently, it is hydrogen, deuterium, cyano, substituted or unsubstituted amino, substituted or unsubstituted C1 to C30 alkyl, substituted or unsubstituted C6 to C30 aryl, substituted or unsubstituted C2 to C30 heterocyclic, or a combination thereof, and

[0040] R d With R 9 With R 14 At least one of them is a group represented by the chemical formula C.

[0041] [Chemical formula C]

[0042]

[0043] In the chemical formula C,

[0044] L d To L f Independently, it can be a single bond or a substituted or unsubstituted C6 to C20 arylene group.

[0045] R e With R f Independently, it is a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C2 to C30 heterocyclic group, or a combination thereof, and

[0046] * indicates a connection point;

[0047]

[0048] Among them, in chemical formulas 4 and 5,

[0049] Y 1 With Y 2 Independently, it is a substituted or unsubstituted C6 to C20 aryl group or a substituted or unsubstituted C2 to C30 heterocyclic group.

[0050] Two adjacent asterisks in chemical formula 4 connect to chemical formula 5.

[0051] The * of chemical formula 4, which is not connected to chemical formula 5, is independently CL. g -R g ,

[0052] L g L 1 With L 2 Independently, it is a single bond or a substituted or unsubstituted C6 to C20 arylene group, and

[0053] R g With R 15 To R 18 It is independently hydrogen, deuterium, cyano, halogen, substituted or unsubstituted amino group, substituted or unsubstituted C1 to C30 alkyl group, substituted or unsubstituted C6 to C30 aryl group, or substituted or unsubstituted C2 to C30 heterocyclic group.

[0054] According to another embodiment, the organic optoelectronic device includes an anode and a cathode facing each other and at least one organic layer disposed between the anode and the cathode, wherein the organic layer includes the compound for the organic optoelectronic device or the composition for the organic optoelectronic device.

[0055] According to another embodiment, a display device including the organic optoelectronic device is provided.

[0056] Effects of the present invention

[0057] It can realize organic optoelectronic devices with high efficiency and long life. Attached Figure Description

[0058] Figure 1 and Figure 2 This is a schematic cross-sectional view of an organic light-emitting diode according to an embodiment.

[0059] [Symbol Explanation]

[0060] 100, 200: Organic Light Emitting Diodes

[0061] 105: Organic layer

[0062] 110: Cathode

[0063] 120: Anode

[0064] 130: Emissive layer

[0065] 140: Hole auxiliary layer Detailed Implementation

[0066] Embodiments of the present invention will be described in detail below. However, these embodiments are exemplary, and the present invention is not limited thereto, and is defined by the claims.

[0067] In this specification, unless otherwise defined, "substituted" means that at least one hydrogen atom of a substituent or compound is substituted with deuterium, cyano, halogen, hydroxyl, amino, substituted or unsubstituted C1 to C30 amino, nitro, substituted or unsubstituted C1 to C40 silyl, C1 to C30 alkyl, C1 to C10 alkylsilyl, C6 to C30 arylsilyl, C3 to C30 cycloalkyl, C3 to C30 heterocycloalkyl, C6 to C30 aryl, C2 to C30 heteroaryl, C1 to C20 alkoxy, C1 to C10 trifluoroalkyl, or a combination thereof.

[0068] In one embodiment of the invention, "substituted" means that at least one hydrogen atom of the substituent or compound is substituted with deuterium, cyano, C1 to C30 alkyl, C1 to C10 alkylsilyl, C6 to C30 arylsilyl, C3 to C30 cycloalkyl, C3 to C30 heterocycloalkyl, C6 to C30 aryl, or C2 to C30 heteroaryl. Furthermore, in a specific example of the invention, "substituted" means that at least one hydrogen atom of the substituent or compound is substituted with deuterium, cyano, C1 to C20 alkyl, or C6 to C30 aryl. Furthermore, in a specific example of the invention, "substituted" means that at least one hydrogen atom of the substituent or compound is substituted with deuterium, cyano, C1 to C5 alkyl, or C6 to C18 aryl. Furthermore, in a specific example of the invention, "substituted" means that at least one hydrogen atom of the substituent or compound is substituted with deuterium, cyano, methyl, ethyl, propyl, butyl, phenyl, biphenyl, terphenyl, or naphthyl.

[0069] In this specification, "adjacent groups connected to each other to form substituted or unsubstituted aliphatic monocyclic or polycyclic, substituted or unsubstituted aromatic monocyclic or polycyclic, or substituted or unsubstituted heteroaromatic monocyclic or polycyclic" means that adjacent groups are connected to each other to form substituted or unsubstituted aliphatic monocyclic or polycyclic, adjacent groups are connected to each other to form substituted or unsubstituted aromatic monocyclic or polycyclic, or substituted or substituted or unsubstituted heteroaromatic monocyclic or polycyclic, and for example, means that any two adjacent substituents that are directly substituted on the aromatic or heteroaromatic ring are connected to each other to form another ring.

[0070] For example, in this specification, when Z in chemical formula A 1 To Z 5 The two adjacent groups in it are each CR b When, adjacent R b They can connect with each other to form substituted or unsubstituted aromatic or heteroaromatic monocyclic or polycyclic rings.

[0071] In one embodiment, adjacent R b They are linked together to form another aromatic monocyclic ring, either substituted or unsubstituted, and thus the chemical formula A can be a substituted or unsubstituted quinolinyl, a substituted or unsubstituted isoquinolinyl, or a substituted or unsubstituted quinazolinyl.

[0072] In another embodiment, adjacent R b They can connect with each other to form substituted or unsubstituted aromatic polycyclic compounds, and thus chemical formula A can be a substituted or unsubstituted benzoquinazoline group.

[0073] In another embodiment, adjacent R bThey can be linked together to form additional heteroaromatic polycyclic compounds, either substituted or unsubstituted, and thus chemical formula A can be either substituted or unsubstituted benzofuranpyrimidinyl or substituted or unsubstituted benzothiophenepyrimidine.

[0074] In this specification, unless otherwise defined, “heterogeneous” means that a functional group includes 1 to 3 heteroatoms selected from N, O, S, P and Si, and the remainder of carbon.

[0075] In this specification, "aryl" means a group comprising at least one hydrocarbon aromatic moiety, wherein all elements of the hydrocarbon aromatic moiety have conjugated p orbitals, such as phenyl, naphthyl, etc., and two or more hydrocarbon aromatic moiety are connected by σ bonds, and may be, for example, biphenyl, terphenyl, tetraphenyl, etc., and two or more hydrocarbon aromatic moiety are directly or indirectly fused to provide a non-aromatic fused ring, such as fumonisin.

[0076] Aryl groups can include monocyclic, polycyclic, or fused polycyclic (i.e., rings sharing adjacent carbon atom pairs) functional groups.

[0077] In this specification, "heterocyclic group" is a heteroaryl group in the general sense, and may contain at least one heteroatom selected from N, O, S, P and Si in place of carbon (C) in cyclic compounds such as aryl, cycloalkyl, their fused rings or combinations thereof. When the heterocyclic group is a fused ring, the entire ring or each ring of the heterocyclic group may contain one or more heteroatoms.

[0078] For example, "heteroaryl" can refer to an aryl group containing at least one heteroatom selected from N, O, S, P, and Si. Two or more heteroaryl groups are directly connected by σ bonds, or when the heteroaryl group contains two or more rings, the two or more rings may be fused. When the heteroaryl group is a fused ring, each ring may contain 1 to 3 heteroatoms.

[0079] More specifically, the substituted or unsubstituted C6 to C30 aryl groups can be substituted or unsubstituted phenyl, substituted or unsubstituted naphthyl, substituted or unsubstituted anthraquinone, substituted or unsubstituted phenanthyl, substituted or unsubstituted tetraphenyl, substituted or unsubstituted pyrene, substituted or unsubstituted biphenyl, substituted or unsubstituted para-triphenyl, substituted or unsubstituted meta-triphenyl, substituted or unsubstituted o-triphenyl, substituted or unsubstituted The group may contain, but is not limited to, substituted or unsubstituted triphenylene, substituted or unsubstituted perylene, substituted or unsubstituted fumoniyl, substituted or unsubstituted indole, or combinations thereof.

[0080] More specifically, the substituted or unsubstituted C2 to C30 heteroaryl groups can be substituted or unsubstituted furanyl, substituted or unsubstituted thiophene, substituted or unsubstituted pyrrole, substituted or unsubstituted pyrazolyl, substituted or unsubstituted imidazolyl, substituted or unsubstituted triazolyl, substituted or unsubstituted oxazolyl, substituted or unsubstituted thiazolyl, substituted or unsubstituted oxadiazolyl, substituted or unsubstituted thiadiazolyl, substituted or unsubstituted pyridyl, substituted or unsubstituted pyrimidinyl, substituted or unsubstituted pyrazinyl, substituted or unsubstituted triazinyl, substituted or unsubstituted benzofuranyl, substituted or unsubstituted benzothiophene, substituted or unsubstituted benzimidazolyl, substituted or unsubstituted... The following are substituted indolyl, substituted or unsubstituted quinolinyl, substituted or unsubstituted isoquinolinyl, substituted or unsubstituted quinazolinyl, substituted or unsubstituted quinoxalinyl, substituted or unsubstituted naphridinyl, substituted or unsubstituted benzoquinazolinyl, substituted or unsubstituted benzofuranpyrimidinyl, substituted or unsubstituted benzothiophenepyrimidine, substituted or unsubstituted benzoxazinyl, substituted or unsubstituted benzothiazinyl, substituted or unsubstituted acridineyl, substituted or unsubstituted phenazinyl, substituted or unsubstituted phenthiazinyl, substituted or unsubstituted phenyloxazinyl, substituted or unsubstituted carbazoyl, substituted or unsubstituted dibenzofuranyl, substituted or unsubstituted dibenzothiaphenyl, or combinations thereof, but not limited thereto.

[0081] In the specification, hole characteristics refer to the ability to give electrons to form holes when an electric field is applied, and holes formed in the anode can be easily injected into the light-emitting layer. Furthermore, due to the conductivity characteristics based on the highest occupied molecular orbital (HOMO) energy level, holes formed in the light-emitting layer can be easily transported to the anode and transported in the light-emitting layer.

[0082] Furthermore, electronic properties refer to the ability to accept electrons when an electric field is applied, and electrons formed in the cathode can be easily injected into the light-emitting layer. Due to the conductivity properties based on the lowest unoccupied molecular orbital (LUMO) energy level, electrons formed in the light-emitting layer can be easily transported to the cathode and transported in the light-emitting layer.

[0083] According to an embodiment, the compound used in an organic optoelectronic device can be represented by a combination of chemical formula 1 and chemical formula 2.

[0084]

[0085] In chemical formula 1 and chemical formula 2,

[0086] X is O or S.

[0087] a1 *to a 4 The two adjacent ones in * are independently connected to b. 1 * and b 2 * Connecting carbon,

[0088] b 1 * and b 2 *Independently for connecting carbon,

[0089] Not connected to b 1 * and b 2 * of a 1 *to a 4 The rest in * are independently CR a ,

[0090] R a With R 1 To R 8 Independently, it is hydrogen, deuterium, cyano, halogen, substituted or unsubstituted C1 to C30 alkyl, substituted or unsubstituted C6 to C30 aryl, substituted or unsubstituted C2 to C30 heterocyclic, or a combination thereof, and

[0091] R a With R 1 To R 8 At least one of them is a group represented by chemical formula A.

[0092] [Chemical Formula A]

[0093]

[0094] In chemical formula A,

[0095] Z 1 To Z 5 Independently N or CR b ,

[0096] Z 1 To Z 5 At least one of them is N,

[0097] R b Independently, it is hydrogen, deuterium, substituted or unsubstituted C1 to C20 alkyl, substituted or unsubstituted C6 to C30 aryl, or a combination thereof.

[0098] R 1 To R 4 With R b Independently existing or connected to adjacent groups to form substituted or unsubstituted aliphatic monocyclic or polycyclic, substituted or unsubstituted aromatic monocyclic or polycyclic, or substituted or unsubstituted heteroaromatic monocyclic or polycyclic, and

[0099] The substitution means that at least one hydrogen atom is replaced by a deuterium, cyano, C1 to C10 alkyl or C6 to C20 aryl group.

[0100] Compounds for organic optoelectronic devices represented by a combination of chemical formulas 1 and 2 have a structure in which a substituent represented by chemical formula A is directly attached to another fused dibenzofuran (or dibenzothiophene).

[0101] Compounds with additional fused structures are desirable for expanding HOMO phores and stabilizing the T1 energy level, and therefore, organic light-emitting devices using these compounds can achieve long lifetime characteristics.

[0102] Furthermore, the compound exhibits rapid electron transport properties by directly substituting (without linking groups) other fused structures with substituents represented by chemical formula A, and is thus applied. The organic light-emitting device is advantageous for achieving low-drive characteristics.

[0103] In other words, organic light-emitting devices with low drive and long lifetime characteristics can be realized by applying compounds represented by a combination of chemical formula 1 and chemical formula 2.

[0104] For example, depending on the fusion point of chemical formula 1 and chemical formula 2, it can be represented by one of chemical formulas 1-1 to 1-9.

[0105]

[0106]

[0107] In chemical formulas 1-1 to 1-9, X and R 1 To R 8 As described above, and R c R d With R a1 To R a4 As mentioned above, R 1 To R 8 Defined.

[0108] As a specific example, it can be represented by chemical formula 1-1 or chemical formula 1-3, and in this case, a T1 energy level suitable for the phosphorescent host can be achieved, thus showing a more favorable effect.

[0109] For example, a compound for an organic optoelectronic device, based on a specific substitution position of a group represented by chemical formula A, can be represented by a combination of chemical formula 2 and one of chemical formulas 1a to 1d.

[0110]

[0111] In chemical formulas 1a to 1d, X and R1 To R 4 a1* to a4* and Z 1 To Z 5 Same as above.

[0112] Specifically, the combination of one of chemical formulas 1a to 1d with chemical formula 2 can be represented by one of chemical formulas 1a-2-1 to 1d-2-1, 1a-2-2 to 1d-2-2, 1a-2-3 to 1d-2-3, 1a-2-4, 1b-2-4, 1a-2-5, 1b-2-5, 1a-2-6, 1b-2-6, 1a-2-7, 1b-2-7, 1a-2-8, and 1b-2-8.

[0113]

[0114]

[0115]

[0116]

[0117] In chemical formulas 1a-2-1 to 1d-2-1, 1a-2-2 to 1d-2-2, 1a-2-3 to 1d-2-3, 1a-2-4, 1b-2-4, 1a-2-5, 1b-2-5, 1a-2-6, 1b-2-6, 1a-2-7, 1b-2-7, 1a-2-8, and 1b-2-8, X, R c R d R 1 To R 8 R a1 To R a4 and Z 1 To Z 5 Same as above.

[0118] More specifically, the compounds for organic optoelectronic devices according to the embodiments may be represented by chemical formula 1a-2-1 or chemical formula 1a-2-3.

[0119] As another example, a compound for an organic optoelectronic device, based on the specific substitution position of a group represented by chemical formula A, can be represented by a combination of chemical formula 2 and one of chemical formulas 1e to 1h.

[0120]

[0121] In chemical formulas 1e to 1h, a1* to a4*, R 1 To R 4 and Z 1 To Z 5 Same as above.

[0122] Specifically, the combination of one of chemical formulas 1e to 1h with chemical formula 2 can be represented by one of chemical formulas 1e-2-1, 1f-2-1, 1e-2-2, 1h-2-2, 1g-2-3, 1h-2-3, 1e-2-5, 1f-2-5, 1e-2-6, 1f-2-6, 1e-2-8, and 1f-2-8.

[0123]

[0124]

[0125]

[0126] In chemical formulas 1e-2-1, 1f-2-1, 1e-2-2, 1h-2-2, 1g-2-3, 1h-2-3, 1e-2-5, 1f-2-5, 1e-2-6, 1f-2-6, 1e-2-8, and 1f-2-8, X and R... c R d R 1 To R 8 R a1 R a3 R a4 and Z 1 To Z 5 Same as above.

[0127] More specifically, the compounds for organic optoelectronic devices according to the embodiments may be selected from chemical formulas 1e-2-1, 1f-2-1, 1e-2-1, 1e-2-2, 1g-2-3 and 1h-2-3.

[0128] According to one of the most specific embodiments, the compound for the organic optoelectronic device may be selected from chemical formulas 1a-2-1, 1e-2-1, and 1e-2-2.

[0129] R c R d R 1 To R 8 With R a1 To R a4Specifically, it may be hydrogen, deuterium, cyano, halogen, C1 to C10 alkyl or substituted or unsubstituted C6 to C12 aryl, for example, all hydrogen, but not limited thereto.

[0130] In chemical formula A, Z 1 To Z 5 Specifically, it can be N or CR b And Z 1 To Z 5 At least two of them can be N.

[0131] By Z 1 To Z 5 The group represented by chemical formula A can specifically be a substituted or unsubstituted pyridyl group, a substituted or unsubstituted pyrimidinyl group, a substituted or unsubstituted triazine group, a substituted or unsubstituted quinolinyl group, a substituted or unsubstituted isoquinolinyl group, a substituted or unsubstituted quinazolinyl group, a substituted or unsubstituted benzoquinazolinyl group, a substituted or unsubstituted benzofuranpyrimidinyl group, or a substituted or unsubstituted benzothiophenepyrimidinyl group.

[0132] For example, the group represented by chemical formula A can be a substituted or unsubstituted pyrimidinyl group or a substituted or unsubstituted triazine group.

[0133] In chemical formula A, R b It can be a substituted or unsubstituted phenyl, a substituted or unsubstituted biphenyl, a substituted or unsubstituted triphenyl, a substituted or unsubstituted triphenylene, a substituted or unsubstituted tyrosyl, a substituted or unsubstituted carbazolyl, a substituted or unsubstituted dibenzofuranyl, a substituted or unsubstituted dibenzothiophene, a substituted or unsubstituted dibenzothiophene, a substituted or unsubstituted benzonaphthofuranyl, or a substituted or unsubstituted benzonaphthothiophene.

[0134] When the R of chemical formula A b When substituted, the substituents may be, for example, deuterium, cyano, C1-C5 alkyl, phenyl, biphenyl or naphthyl, but are not limited thereto.

[0135] As a more specific example, the group represented by chemical formula A can be selected from substituents in group I.

[0136] [Group I]

[0137]

[0138] In group I, * represents a connection point.

[0139] For example, the compound used in organic optoelectronic devices may be one of the compounds selected from Group 1, but is not limited thereto.

[0140] [Group 1]

[0141]

[0142]

[0143]

[0144]

[0145]

[0146]

[0147] The composition for an organic optoelectronic device according to an embodiment may include a first compound for an organic optoelectronic device and a second compound for an organic optoelectronic device, wherein the first compound includes the compound for an organic optoelectronic device described above, and the second compound is represented by a combination of chemical formula 3 or chemical formula 4 and chemical formula 5.

[0148] [Chemical Formula 3]

[0149]

[0150] In chemical formula 3,

[0151] Ar 1 It is a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C2 to C30 heterocyclic group, or a combination thereof, and

[0152] Ring B is represented by the chemical formula B-1 or B-2.

[0153]

[0154] In chemical formula B-1, *C1 and *C2 are independently connecting carbon atoms.

[0155] In chemical formula B-2, the two adjacent carbons in *d1 to *d4 are independently bonded carbons, and the other two unbonded carbons are independently carbons (CRs). d ,

[0156] R d With R 9 With R 14 Independently, it is hydrogen, deuterium, cyano, substituted or unsubstituted amino, substituted or unsubstituted C1 to C30 alkyl, substituted or unsubstituted C6 to C30 aryl, substituted or unsubstituted C2 to C30 heterocyclic, or a combination thereof, and

[0157] R d With R 9 With R 14At least one of them is a group represented by the chemical formula C.

[0158] [Chemical formula C]

[0159]

[0160] In the chemical formula C,

[0161] L d To L f Independently, it can be a single bond or a substituted or unsubstituted C6 to C20 arylene group.

[0162] R e With R f Independently, it is a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C2 to C30 heterocyclic group, or a combination thereof, and

[0163] * indicates a connection point;

[0164]

[0165] Among them, in chemical formulas 4 and 5,

[0166] Y 1 With Y 2 Independently, it is a substituted or unsubstituted C6 to C20 aryl group or a substituted or unsubstituted C2 to C30 heterocyclic group.

[0167] Two adjacent asterisks in chemical formula 4 connect to chemical formula 5.

[0168] The * of chemical formula 4, which is not connected to chemical formula 5, is independently CL. g -R g ,

[0169] L g L 1 With L 2 Independently, it is a single bond or a substituted or unsubstituted C6 to C20 arylene group, and

[0170] R g With R 15 To R 18 It is independently hydrogen, deuterium, cyano, halogen, substituted or unsubstituted amino group, substituted or unsubstituted C1 to C30 alkyl group, substituted or unsubstituted C6 to C30 aryl group, or substituted or unsubstituted C2 to C30 heterocyclic group.

[0171] In the light-emitting layer, a second compound for organic optoelectronic devices is used together with a first compound for organic optoelectronic devices, thereby improving charge mobility and stability, as well as improving luminous efficiency and lifetime characteristics.

[0172] For example, a second compound for an organic optoelectronic device represented by chemical formula 3 can be represented by one of chemical formulas 3B-1, 3B-2A, 3B-2B, and 3B-2C.

[0173]

[0174] In chemical formulas 3B-1, 3B-2A, 3B-2B, and 3B-2C, Ar 1 R d R 9 and R 14 Same as above.

[0175] For example, a second compound for an organic optoelectronic device, represented by a combination of chemical formulas 4 and 5, can be represented by one of chemical formulas 4A to 4E.

[0176]

[0177] In chemical formulas 4A to 4E, Y 1 With Y 2 L 1 With L 2 and R 15 To R 18 Same as above,

[0178] L g1 To L g4 With the above L 1 and L 2 The definitions are the same, and

[0179] R g1 To R g4 As mentioned above, R 15 To R 18 Defined.

[0180] For example, Y in chemical formulas 4 and 5 1 With Y 2 It can independently be a substituted or unsubstituted phenyl, a substituted or unsubstituted biphenyl, a substituted or unsubstituted pyridyl, a substituted or unsubstituted carbazole, a substituted or unsubstituted dibenzofuranyl, or a substituted or unsubstituted dibenzothiopheneyl, and

[0181] R g1 To R g4 With R 15 To R 18It can be independently hydrogen, deuterium, cyano, substituted or unsubstituted phenyl, substituted or unsubstituted biphenyl, substituted or unsubstituted pyridyl, substituted or unsubstituted carbazolyl, substituted or unsubstituted dibenzofuranyl or substituted or unsubstituted dibenzothiophene.

[0182] In a specific embodiment of the present invention, Y in chemical formula 4 and chemical formula 5 1 and Y 2 Substituents can be independently selected from group II.

[0183] [Group II]

[0184]

[0185] In group II, * represents L respectively. 1 With L 2 The connection point.

[0186] In one embodiment, R g1 To R g4 With R 15 To R 18 It can be independently hydrogen, deuterium, cyano, substituted or unsubstituted phenyl, substituted or unsubstituted biphenyl, substituted or unsubstituted pyridyl, substituted or unsubstituted carbazolyl, substituted or unsubstituted dibenzofuranyl or substituted or unsubstituted dibenzothiophene.

[0187] For example, R g1 To R g4 With R 15 To R 18 It can be independently hydrogen, deuterium, cyano, or a substituted or unsubstituted phenyl group, and

[0188] In one specific embodiment, R g1 To R g4 Each is hydrogen, and R 15 To R 18 It can be hydrogen or phenyl independently.

[0189] In one specific embodiment of the present invention, the second compound for the organic optoelectronic device may be represented by the chemical formula 4C.

[0190] Here, the Y in chemical formula 3C 1 To Y 2 It can independently be a substituted or unsubstituted phenyl, a substituted or unsubstituted biphenyl, a substituted or unsubstituted pyridyl, a substituted or unsubstituted carbazole, a substituted or unsubstituted dibenzofuranyl, or a substituted or unsubstituted dibenzothiopheneyl, L 1 L 2 L g1With L g2 It can be independently a single bond or a substituted or unsubstituted C6 to C20 arylene, and R g1 R g2 With R 15 To R 18 It can be independently hydrogen, deuterium, cyano, substituted or unsubstituted phenyl, substituted or unsubstituted biphenyl, substituted or unsubstituted pyridyl, substituted or unsubstituted carbazolyl, substituted or unsubstituted dibenzofuranyl or substituted or unsubstituted dibenzothiophene.

[0191] For example, the second compound used in an organic optoelectronic device may be one of the compounds selected from group 2, but is not limited thereto.

[0192] [Group 2]

[0193]

[0194]

[0195]

[0196] The first compound and the second compound for the organic optoelectronic device may be contained, for example, in a weight ratio of 1:99 to 99:1. Within the above range, bipolar characteristics can be achieved by matching a suitable weight ratio of the electron transport capability of the first compound for the organic optoelectronic device to the hole transport capability of the second compound for the organic optoelectronic device, thereby improving efficiency and lifetime. Within the range, they may be contained, for example, in weight ratios of about 10:90 to 90:10, about 20:80 to 80:20, for example, about 20:80 to about 70:30, about 20:80 to about 60:40, and about 20:80 to about 50:50. They may be contained, for example, in a weight ratio of 20:80 to 40:60, and as a specific example, it may be contained, for example, in a weight ratio of 30:70, 40:60, or 50:50, for example, 30:70.

[0197] In addition to the first compound and the second compound for organic optoelectronic devices described above, one or more compounds may also be included.

[0198] The compound or composition for the organic optoelectronic device may be a composition that further includes a dopant.

[0199] The dopant may be, for example, a phosphorescent dopant, such as a red, green, or blue phosphorescent dopant, such as a red or green phosphorescent dopant.

[0200] The dopant is mixed in small amounts with a compound or composition used in organic optoelectronic devices to induce luminescence, and is typically a material such as a metal complex that emits light by being excited to triplet or more states multiple times. The dopant can be, for example, an inorganic, organic, or organic / inorganic compound, and one or more of these can be used.

[0201] Examples of dopants include phosphorescent dopants, and examples of phosphorescent dopants can be organometallic compounds, including Ir, Pt, Os, Ti, Zr, Hf, Eu, Tb, Tm, Fe, Co, Ni, Ru, Rh, Pd, or combinations thereof. Phosphorescent dopants can be, for example, compounds represented by the chemical formula Z, but are not limited thereto.

[0202] [Chemical Formula Z]

[0203] L c MX c

[0204] In the chemical formula Z, M is a metal, and L c With X c The same or different ligands that form a complex with M.

[0205] M can be, for example, Ir, Pt, Os, Ti, Zr, Hf, Eu, Tb, Tm, Fe, Co, Ni, Ru, Rh, Pd, or combinations thereof, and L c With X c For example, it could be a bidentate ligand.

[0206] The compounds or components used in organic optoelectronic devices described above can be provided as films using dry film formation methods such as chemical vapor deposition.

[0207] The following describes an organic optoelectronic device comprising the above-described compounds for use in organic optoelectronic devices.

[0208] Organic optoelectronic devices can be any device that converts electrical energy into light energy and vice versa, without particular limitation, and can include, for example, organic optoelectronic devices, organic light-emitting diodes, organic solar cells, and organic photoconductor drums.

[0209] Hereinafter, an organic light-emitting diode (OLED) is described as an example of an organic optoelectronic device with reference to the accompanying drawings.

[0210] Figure 1 and Figure 2 Each of these is a cross-sectional schematic diagram of an organic light-emitting diode according to an embodiment.

[0211] Reference Figure 1According to an embodiment, the organic light-emitting diode 100 includes an anode 120 and a cathode 110 facing each other, and an organic layer 105 disposed between the anode 120 and the cathode 110.

[0212] The anode 120 may be made of a conductor with a large work function to facilitate hole injection, and may be, for example, a metal, a metal oxide, and / or a conductive polymer. The anode 120 may be, for example, a metal or an alloy thereof such as nickel, platinum, vanadium, chromium, copper, zinc, gold, etc.; a metal oxide, such as zinc oxide, indium oxide, indium tin oxide (ITO), indium zinc oxide (IZO), etc.; a combination of metals and oxides, such as ZnO and Al or SnO2 and Sb; a conductive polymer, such as poly(3-methylthiophene), poly(3,4-(ethylene-1,2-dioxy)thiophene) (PEDOT), polypyrrole, and polyaniline, but is not limited thereto.

[0213] The cathode 110 may be made of a conductor having a small work function to facilitate electron injection, and may be, for example, a metal, a metal oxide, and / or a conductive polymer. The cathode 110 may be, for example, a metal or alloy thereof such as magnesium, calcium, sodium, potassium, titanium, indium, yttrium, lithium, gadolinium, aluminum, silver, tin, lead, cesium, barium, etc.; a multilayer material such as LiF / Al, LiO2 / Al, LiF / Ca, LiF / Al, and BaF2 / Ca, but is not limited thereto.

[0214] The organic layer 105 may include the compounds or components used in organic optoelectronic devices described above.

[0215] The organic layer 105 may include the light-emitting layer 130, and the light-emitting layer 130 may include the compounds or components for organic optoelectronic devices described above.

[0216] The composition for organic optoelectronic devices, which also includes dopants, may be, for example, a green-emitting composition.

[0217] The light-emitting layer 130 may include, for example, the first compound for organic optoelectronic devices and the second compound for organic optoelectronic devices described above, respectively, as phosphorescent hosts.

[0218] In addition to the light-emitting layer, the organic layer may also include auxiliary layers.

[0219] The auxiliary layer can be, for example, a hole auxiliary layer 140.

[0220] Reference Figure 2 The organic light-emitting diode 200 also includes a hole auxiliary layer 140 and a light-emitting layer 130. The hole auxiliary layer 140 can further increase hole injection and / or hole mobility between the anode 120 and the light-emitting layer 130 and block electrons.

[0221] Hole auxiliary layer 140 may include, for example, at least one of the compounds in group D.

[0222] Specifically, the hole auxiliary layer 140 may include a hole transport layer between the anode 120 and the light-emitting layer 130 and a hole transport auxiliary layer between the light-emitting layer 130 and the hole transport layer, and at least one of the compounds in group D may be included in the hole transport auxiliary layer.

[0223] [Group D]

[0224]

[0225]

[0226]

[0227] In the hole transport auxiliary layer, in addition to the compounds mentioned above, known compounds disclosed in US5061569A, JP1993-009471A, WO1995-009147A1, JP1995-126615A, JP1998-095973A and similar compounds may be used.

[0228] In the embodiments, Figure 1 or Figure 2 In this process, the organic light-emitting diode may also include an electron transport layer, an electron injection layer, or a hole injection layer as an organic layer 105.

[0229] Organic light-emitting diodes 100 and 200 can be manufactured by forming an anode or cathode on a substrate, forming an organic layer using dry film forming methods such as vacuum deposition (evaporation), sputtering, plasma plating, and ion plating, and forming a cathode or anode thereon.

[0230] Organic light-emitting diodes (OLEDs) can be used in organic light-emitting display devices.

[0231] In the following description, embodiments will be illustrated in more detail with reference to examples. However, these examples are exemplary and the scope is not limited thereto.

[0232] Methods of implementing the present invention

[0233] Unless otherwise specified, the raw materials and reactants used in the examples and synthesis examples below were purchased from Sigma-Aldrich Co. Ltd., TCI Inc., Tokyo Chemical Industry, or P&H Tech, or synthesized by known methods.

[0234] (Preparation of compounds for organic optoelectronic devices)

[0235] The compounds, which are more specific examples of compounds of the present invention, are synthesized by the following steps.

[0236] (Preparation of the first compound for organic optoelectronic devices)

[0237] Synthesis Example 1: Synthesis of Compound A-6

[0238] [Reaction Mechanism 1]

[0239]

[0240] [Reaction Mechanism 2]

[0241]

[0242] (HRMS(70eV,EI+):m / z calcd for C37H23N3O:525.18,found:526.33)

[0243] Synthesis Example 2: Synthesis of Compound A-7

[0244] [Reaction Mechanism 3]

[0245]

[0246] (HRMS(70eV,EI+):m / z calcd for C41H25N3O:575.20,found:576.33)

[0247] Synthesis Example 3: Synthesis of Compound A-5

[0248] [Reaction Mechanism 4]

[0249]

[0250] (HRMS(70eV,EI+):m / z calcd for C41H25N3O:575.20,found:576.39)

[0251] Synthesis Example 4: Synthesis of Compound B-34

[0252] Compound B-34 was synthesized according to the information disclosed in KR10-2018-0129656A.

[0253]

[0254] (HRMS(70eV,EI+):m / z calcd for C45H27N3O:610.24,found:611.24)

[0255] Comparative Synthesis Example 1: Synthesis of Compound C-1

[0256] Compound C-1 was synthesized with reference to the contents disclosed in KR10-1970000 B1.

[0257]

[0258] (HRMS(70eV,EI+):m / z calcd for C45H27N3O:625.22,found:626.20)

[0259] Comparative Synthesis Example 2: Synthesis of Compound C-2

[0260] [Reaction Mechanism 5]

[0261]

[0262] (HRMS(70eV,EI+):m / z calcd for C39H25N3O:551.20,found:552.20)

[0263] (Manufacturing of Organic Light Emitting Diodes)

[0264] Example 1

[0265] The coating with a thickness is cleaned using ultrasonic cleaning with distilled water. An ITO (indium tin oxide) glass substrate was prepared. After washing with distilled water, the glass substrate was ultrasonically cleaned with solvents such as isopropanol, acetone, and methanol, and then dried. It was then transferred to a plasma cleaner and cleaned with oxygen plasma for 10 minutes before being transferred to a vacuum depositor. The obtained ITO transparent electrode was used as the anode, and compound A was vacuum deposited onto the ITO substrate to form a thickness of [thickness missing]. The hole injection layer, and the compound B is deposited to a thickness of The injection layer was then used to deposit compound C. A thick layer is formed to create a hole transport layer. On this hole transport layer, compound C-1 is vacuum-deposited to form a layer with a thickness of [thickness value missing]. A hole transport auxiliary layer was constructed. Compound A-6 was used as the host material and doped with 2 wt.% [Ir(piq)2acac] as a dopant on the hole transport auxiliary layer, and the layer was formed by vacuum deposition. A thick luminescent layer was then formed on the luminescent layer by simultaneously vacuum depositing compounds D and Liq in a 1:1 ratio. A thick electron transport layer is formed, and then Liq and Al are sequentially vacuum-deposited on the electron transport layer. Thickness and Thick, to manufacture organic light-emitting diodes.

[0266] The organic light-emitting diode has five organic thin layers and specifically has the following structure.

[0267] ITO / Compound A / Compound B / Compound C / Compound C-1 / Emitting layer [Compound A-6: [Ir(piq)2acac](2wt%)] / Compound D:Liq / Liq / Al

[0268] Compound A: N4,N4'-diphenyl-N4,N4'-bis(9-phenyl-9H-carbazole-3-yl)biphenyl-4,4'-diamine

[0269] Compound B: 1,4,5,8,9,11-Hexaazatribenzohexacarbonyl nitrile (HAT-CN)

[0270] Compound C: N-(biphenyl-4-yl)-9,9-dimethyl-N-(4-(9-phenyl-9H-carbazol-3-yl)phenyl)-9H-furan-2-amine

[0271] Compound C-1: N,N-bis([1,1'-biphenyl]-4-yl)-7,7-dimethyl-7H-furanol[4,3-b]benzofuran-10-amine

[0272] Compound D: 8-(4-(4,6-bis(naphthyl-2-yl)-1,3,5-triazin-2-yl)phenyl)quinoline

[0273] Examples 2 to 10 and Comparative Examples 1 to 4

[0274] Except for the changes to the light-emitting layer body as shown in Tables 1 to 4, the organic light-emitting diodes of Examples 2 to 10 and Comparative Examples 1 to 4 were manufactured according to the same method as in Example 1.

[0275] Evaluation: The driving voltage, current efficiency, and lifetime characteristics of the organic light-emitting diodes (OLEDs) of Examples 1 to 10 and Comparative Examples 1 to 4 were evaluated. Specific measurement methods are as follows, and the results are shown in Tables 1 to 4.

[0276] (1) Measuring current density change based on voltage change

[0277] While increasing the voltage from 0V to 10V, the current flowing in the unit device is measured using an ammeter-voltmeter (Keithley 2400) to measure the obtained organic light-emitting diode, and the measured current value is divided by the area to obtain the result. (2) Measure the brightness change based on the voltage change.

[0278] The brightness was measured using a luminance meter (Minolta Cs-1000A) while the voltage of the organic light-emitting diode was increased from 0V to 10V.

[0279] (3) Measure current efficiency

[0280] The brightness, current density, and voltage (V) of items (1) and (2) were used to calculate the voltage at the same current density (10 mA / cm²). 2 Current efficiency (cd / A) at )

[0281] (4) Measure the driving voltage

[0282] Using an ammeter and voltmeter (Keithley 2400), at 15 mA / cm... 2 The voltage measurement measures the drive voltage of each diode.

[0283] (5) Measurement of lifespan

[0284] At 9000cd / m 2 As the initial brightness (cd / m 2 The light emitted was measured over time using the Polanonix lifetime measurement system, showing the brightness decrease relative to the initial brightness (cd / m²). 2 The time it takes for the T97 lifetime to decrease to 97% is measured for organic light-emitting diodes according to Examples 1 to 10 and Comparative Examples 1 to 4.

[0285] (6) Calculate the T97 lifetime ratio (%)

[0286] The T97 lifetime ratio (%) is a relative value of T97 (h).

[0287] T97 lifespan ratio (%) = {[T97(h) of the example] / {[T97(h) of the comparison example]} × 100

[0288] (7) Calculate the driving voltage ratio (%)

[0289] The drive voltage ratio (%) is a relative value of the drive voltage (V).

[0290] Drive voltage ratio (%) = {[Drive voltage of the example (V)] / {[Drive voltage of the comparison example (V)]} × 100

[0291] (8) Calculate the current efficiency ratio (%)

[0292] The current efficiency ratio (%) is a relative value of the current efficiency (cd / A).

[0293] Current efficiency ratio (%) = {[current efficiency of the example (cd / A)] / {[current efficiency of the comparison example (cd / A)]} × 100

[0294] Table 1

[0295]

[0296] Table 2

[0297]

[0298] Table 3

[0299]

[0300] Table 4

[0301]

[0302] Referring to Tables 1 to 4, the compounds according to the present invention exhibit significantly improved current efficiency and lifetime characteristics compared to the compounds according to the comparative examples.

[0303] Compared to compound C-1, the compounds according to the present invention maintain similar lifetime characteristics and exhibit significantly improved current efficiency and drive voltage. Compared to compound C-2, the compounds according to the present invention maintain similar drive voltage characteristics and exhibit significantly improved current efficiency and lifetime. Compared to the compounds of the comparative examples, the compounds of the embodiments according to the present invention exhibit improved drive, efficiency, and lifetime characteristics, and are therefore optimized in all aspects.

[0304] Although the invention has been described in conjunction with embodiments now considered practical, it should be understood that the invention is not limited to the disclosed embodiments, but rather is intended to include various modifications and equivalents included within the spirit and scope of the claims.

Claims

1. A compound for use in organic optoelectronic devices, represented by chemical formula 1a-2-1: [Chemical Formula 1a-2-1] in, In chemical formula 1a-2-1, X is O or S. R a3 R a4 With R 1 To R 3 With R 5 To R 8 Independently hydrogen, deuterium, cyano, halogen, substituted or unsubstituted C1 to C30 alkyl, substituted or unsubstituted C6 to C30 aryl, Z 1 To Z 5 Independent of N or CR b , Z 1 To Z 5 At least one of them is N, R b Independently, it is hydrogen, deuterium, substituted or unsubstituted C1 to C20 alkyl, substituted or unsubstituted C6 to C30 aryl, or a combination thereof. R 1 To R 3 Independently existing or connected to adjacent groups to form substituted or unsubstituted aliphatic monocyclic or polycyclic, substituted or unsubstituted aromatic monocyclic or polycyclic, or substituted or unsubstituted heteroaromatic monocyclic or polycyclic, and The substitution means that at least one hydrogen atom is replaced by a deuterium, cyano, C1 to C10 alkyl or C6 to C20 aryl group.

2. The compound for organic optoelectronic devices according to claim 1, wherein... It can be a substituted or unsubstituted pyridyl, a substituted or unsubstituted pyrimidinyl, or a substituted or unsubstituted triazine.

3. The compound for organic optoelectronic devices according to claim 1, wherein... One of the substituents in group I: [Group I] in, In group I, This is the connection point.

4. The compound for organic optoelectronic devices according to claim 1, wherein it is one of the compounds in group 1: [Group 1] [A-5] [A-6] [A-7] [A-8] [A-11] [A-12] [A-13] [A-14] [A-15] [A-16] [A-19] [A-25] [A-26] [A-27] [A-63] [A-99] [A-100] [A-101] \ [A-102] [A-103] [A-104] [A-118] [A-119] [A-120] [A-121] [A-122] [A-123] [A-124] [A-138] [A-139] [A-140] [A-141] [A-142] [A-143] [A-144] [A-158] 。 5. A composition for an organic optoelectronic device, comprising: The first compound for use in an organic optoelectronic device includes the compound for use in an organic optoelectronic device as described in claim 1; as well as The second compound used in organic optoelectronic devices is represented by chemical formula 3 or a combination of chemical formula 4 and chemical formula 5: [Chemical Formula 3] In chemical formula 3, Ar 1 It is a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C2 to C30 heterocyclic group, or a combination thereof, and Ring B is represented by the chemical formula B-1 or B-2. [Chemical Formula B-1] [Chemical Formula B-2] Chemical formula B-1 C1 and C2 is independently the connecting carbon. In chemical formula B-2 d1 to In d4, the two adjacent carbon atoms are independently connected, and the other two unconnected carbon atoms are independently carbons (CRs). d , R d With R 9 To R 14 Independently, it is hydrogen, deuterium, cyano, substituted or unsubstituted amino, substituted or unsubstituted C1 to C30 alkyl, substituted or unsubstituted C6 to C30 aryl, substituted or unsubstituted C2 to C30 heterocyclic, or a combination thereof, and R d With R 9 To R 14 At least one of them is a group represented by the chemical formula C. [Chemical formula C] In the chemical formula C, L d To L f Independently, it can be a single bond or a substituted or unsubstituted C6 to C20 arylene group. R e With R f Independently, it is a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C2 to C30 heterocyclic group, or a combination thereof, and For connection points; [Chemical Formula 4] [Chemical Formula 5] Among them, in chemical formulas 4 and 5, Y 1 With Y 2 Independently, it is a substituted or unsubstituted C6 to C20 aryl group or a substituted or unsubstituted C2 to C30 heterocyclic group. Two adjacent chemical formulas 4 Connected to chemical formula 5, Not connected to chemical formula 4 of chemical formula 5 Independent for CL g -R g , L g L 1 With L 2 Independently, it is a single bond or a substituted or unsubstituted C6 to C20 arylene group, and R g With R 15 To R 18 It is independently hydrogen, deuterium, cyano, halogen, substituted or unsubstituted amino group, substituted or unsubstituted C1 to C30 alkyl group, substituted or unsubstituted C6 to C30 aryl group or substituted or unsubstituted C2 to C30 heterocyclic group.

6. The composition for an organic optoelectronic device according to claim 5, wherein the second compound for the organic optoelectronic device is represented by chemical formula 4C: [Chemical formula 4C] in, In the chemical formula 4C, Y 1 With Y 2 Independently, it is a substituted or unsubstituted phenyl, a substituted or unsubstituted biphenyl, a substituted or unsubstituted pyridyl, a substituted or unsubstituted carbazole, a substituted or unsubstituted dibenzofuranyl, or a substituted or unsubstituted dibenzothiopheneyl. L 1 L 2 L g1 With L g2 Independently, it is a single bond or a substituted or unsubstituted C6 to C20 arylene group, and R g1 R g2 With R 15 To R 18 It is independently hydrogen, deuterium, cyano, substituted or unsubstituted phenyl, substituted or unsubstituted biphenyl, substituted or unsubstituted pyridyl, substituted or unsubstituted carbazolyl, substituted or unsubstituted dibenzofuranyl or substituted or unsubstituted dibenzothiophene.

7. An organic optoelectronic device, comprising: The anode and cathode facing each other; as well as At least one organic layer is disposed between the anode and the cathode. The organic layer comprises a compound for an organic optoelectronic device as described in any one of claims 1 to 4, or a composition for an organic optoelectronic device as described in claims 5 or 6.

8. The organic optoelectronic device according to claim 7, wherein the organic layer comprises a light-emitting layer, and the light-emitting layer comprises the compound for the organic optoelectronic device or the composition for the organic optoelectronic device.

9. A display device comprising the organic optoelectronic device as described in claim 7.

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