WO2023132668A1 - 유기 화합물 및 이를 이용한 유기 전계 발광 소자 - Google Patents
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- WO2023132668A1 WO2023132668A1 PCT/KR2023/000248 KR2023000248W WO2023132668A1 WO 2023132668 A1 WO2023132668 A1 WO 2023132668A1 KR 2023000248 W KR2023000248 W KR 2023000248W WO 2023132668 A1 WO2023132668 A1 WO 2023132668A1
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Definitions
- the present invention relates to a novel organic compound and an organic electroluminescent device using the same, and more particularly, to a compound having excellent electron transport ability and an organic electroluminescent field having improved characteristics such as luminous efficiency, driving voltage, and lifetime by including the compound in one or more organic material layers. It relates to a light emitting device.
- the organic electroluminescent device When a voltage is applied between the two electrodes of the organic electroluminescent device (hereinafter referred to as 'organic EL device'), holes are injected from the anode and electrons are injected into the organic material layer from the cathode. When the injected holes and electrons meet, excitons are formed, and when these excitons fall to the ground state, light is emitted.
- the material used as the organic material layer may be classified according to its function into a light emitting material, a hole injection material, a hole transport material, an electron transport material, an electron injection material, and the like.
- Materials for forming the light emitting layer of the organic EL device may be classified into blue, green, and red light emitting materials according to the light emitting color.
- yellow and orange light emitting materials are also used as light emitting materials for implementing better natural colors.
- a host/dopant system may be used as a light emitting material.
- the dopant material may be divided into a fluorescent dopant using an organic material and a phosphorescent dopant using a metal complex compound containing heavy atoms such as Ir and Pt.
- Ir and Pt a metal complex compound containing heavy atoms
- hole injection layer, hole transport layer. NPB, BCP, Alq 3 and the like are widely known as hole blocking layers and electron transport layers, and anthracene derivatives have been reported as fluorescent dopant/host materials for light emitting materials.
- phosphorescent materials that have a great advantage in terms of efficiency improvement among light emitting materials include metal complex compounds containing Ir such as Firpic, Ir(ppy) 3 , and (acac)Ir(btp) 2 as blue, green, and red dopant materials. is being used as So far, CBP has shown excellent properties as a phosphorescent host material.
- organic layer materials are advantageous in terms of light emitting properties, but have low glass transition temperatures and very poor thermal stability, so they are not satisfactory in terms of lifespan in organic EL devices. Therefore, there is a demand for the development of organic layer materials with excellent performance.
- the present invention is excellent in carrier injection and transport capability (particularly, electron injection and transport capability), light emitting capability, thermal stability, etc., and is thus an organic layer material of an organic electroluminescent device, specifically, a light emitting layer material, a lifespan improvement layer material, and a light emitting auxiliary layer. It is an object of the present invention to provide a novel organic compound that can be used as a material, an electron transport auxiliary layer material, and/or an electron transport layer material.
- Another object of the present invention is to provide an organic electroluminescent device exhibiting a low driving voltage and high luminous efficiency and having an improved lifetime, including the novel organic compound described above.
- X 1 to X 3 are the same as or different from each other, and are each independently N or C(Ar 3 ), provided that at least one of X 1 to X 3 is N, and in this case, when C(Ar 3 ) is plural, plural Ar 3 of are the same as or different from each other,
- Ar 1 to Ar 3 are the same as or different from each other, and each independently represents hydrogen, heavy hydrogen, a halogen group, a cyano group, a nitro group, an amino group, a C 1 ⁇ C 40 alkyl group, a C 2 ⁇ C 40 alkenyl group, a C 2 ⁇ C 40 alkynyl group, C 3 ⁇ C 40 cycloalkyl group, 3 to 40 nuclear atoms heterocycloalkyl group, C 6 ⁇ C 60 aryl group, 5 to 60 nuclear atoms heteroaryl group, C 1 ⁇ C 40 alkyloxy group, C 6 ⁇ C 60 aryloxy group, C 1 ⁇ C 40 alkylsilyl group, C 6 ⁇ C 60 arylsilyl group, C 1 ⁇ C 40 alkyl boron group, C 6 ⁇ C 60 aryl boron group, C 6 ⁇ C 60 aryl phosphine group, C 6 ⁇ C 60 aryl phosphine oxide group
- n is an integer from 0 to 3;
- L 1 is a single bond, or is selected from the group consisting of a C 6 ⁇ C 60 arylene group and a heteroarylene group having 5 to 60 nuclear atoms;
- R 1 to R 3 are the same as or different from each other, and are each independently selected from the group consisting of a C 6 ⁇ C 60 aryl group and a heteroaryl group having 5 to 60 nuclear atoms;
- R 1 to R 3 is a substituent represented by any one of the following formulas 2 to 6,
- Y 1 is selected from the group consisting of C(Ar 4 )(Ar 5 ), N(Ar 6 ), O and S;
- Y 2 and Y 3 are the same as or different from each other, and are each independently O or S;
- Ring A is a benzene ring
- L 2 is a single bond, or is selected from the group consisting of a C 6 ⁇ C 60 arylene group and a heteroarylene group having 5 to 60 nuclear atoms;
- a, c, i and j are each an integer from 0 to 4.
- b is an integer from 0 to 3;
- d, e, f are each an integer from 0 to 5
- g is an integer from 0 to 8;
- h is an integer from 0 to 9;
- Ar 4 to Ar 6 and R 4 to R 13 are the same as or different from each other, and each independently represents hydrogen, heavy hydrogen, a halogen group, a cyano group, a nitro group, an amino group, a C 1 ⁇ C 40 alkyl group, a C 2 ⁇ C 40 Alkenyl group, C 2 ⁇ C 40 alkynyl group, C 3 ⁇ C 40 cycloalkyl group, heterocycloalkyl group having 3 to 40 nuclear atoms, C 6 ⁇ C 60 aryl group, heteroaryl having 5 to 60 nuclear atoms group, C 1 ⁇ C 40 alkyloxy group, C 6 ⁇ C 60 aryloxy group, C 1 ⁇ C 40 alkylsilyl group, C 6 ⁇ C 60 arylsilyl group, C 1 ⁇ C 40 alkyl boron Group, C 6 ⁇ C 60 aryl boron group, C 6 ⁇ C 60 aryl phosphine group, C 6 ⁇ C 60 aryl
- the present invention is an anode; cathode; It provides an organic electroluminescent device including one or more organic material layers interposed between the anode and the cathode, wherein at least one of the one or more organic material layers includes the compound represented by Formula 1.
- the organic material layer containing the compound may be at least one selected from the group consisting of a light emitting layer, an electron transport layer, and an electron transport auxiliary layer.
- the compound of the present invention can be used as a material for an organic material layer of an organic electroluminescent device because it has excellent electron injection and transport ability, light emitting ability, thermal stability, and electrochemical stability.
- an organic electroluminescent device having low driving voltage, high efficiency, and long lifespan characteristics can be manufactured compared to conventional materials, Furthermore, a full color display panel with improved performance and lifespan can be manufactured.
- FIG. 1 is a schematic cross-sectional view of an organic electroluminescent device according to a first embodiment of the present invention.
- FIG. 2 is a schematic cross-sectional view of an organic electroluminescent device according to a second embodiment of the present invention.
- FIG 3 is a schematic cross-sectional view of an organic electroluminescent device according to a third embodiment of the present invention.
- 300 organic material layer
- 310 hole injection layer
- a nitrogen-containing heteroaromatic ring is directly bonded to the 3rd carbon position of the benzene moiety or bonded through a linker group (eg, phenylene group, etc.), and the benzene moiety at the 1st, 4th and 5th positions
- substituents eg, aryl group, heteroaryl group, etc.
- a specific substituent eg, monovalent flu Orene group, monovalent dibenzofuran group, monovalent dibenzothiophene group, monovalent carbazole group, monovalent tetraphenylsilane group, monovalent naphthobenzofuran group, monovalent naphthobenzotheophene group ( naphthobenzothiophen group), a monovalent benzoxanthen group, a monovalent benzothioxanthene group, etc.] are bonded together, and is represented by Formula 1 above.
- the compound represented by Chemical Formula 1 according to the present invention has excellent thermal stability, carrier transport ability (e.g., electron transport capability) and luminescence, and thus is an electron transport layer material capable of improving high efficiency, long lifespan, and driving voltage characteristics of an organic electroluminescent device. Alternatively, it may be used as an electron transport auxiliary layer material.
- the carbon position number of the benzene moiety can be expressed as follows.
- the compound represented by Formula 1 various substituents (eg, aryl groups, heteroaryl groups, etc.) are bonded to the 1st, 4th and 5th carbon positions of the benzene moiety, respectively.
- substituents eg, aryl groups, heteroaryl groups, etc.
- Tg glass transition temperature
- a nitrogen-containing heteroaromatic ring e.g., azine group
- EWG electron withdrawing group
- the compound represented by Chemical Formula 1 of the present invention has a high triplet energy, excitons generated in the light emitting layer can be prevented from diffusing (moving) to an electron transport layer or a hole transport layer adjacent to the light emitting layer. Accordingly, the number of excitons contributing to light emission in the light emitting layer is increased, so that the light emitting efficiency of the device can be improved, and the lifespan of the device can be effectively increased by improving durability and stability of the device.
- 'electron transport auxiliary layer' a separate organic material layer located between the light emitting layer and the electron transport layer is formed using the compound of the present invention, since the diffusion of excitons is prevented by the compound, the above Unlike a conventional organic light emitting device that does not include an electron transport auxiliary layer, the number of excitons contributing to light emission in the light emitting layer is substantially increased, so that the light emitting efficiency of the device can be improved.
- the compound of Formula 1 when the compound of Formula 1 is applied as a material for an electron transport layer or an electron transport auxiliary layer of an organic electroluminescent device, electrons can be smoothly transferred from the cathode (or electron injection layer) to the light emitting layer, resulting in a driving voltage of the device. This is lowered, and high efficiency and long lifespan characteristics can be implemented.
- the compound represented by Formula 1 according to the present invention has excellent carrier transport ability (eg, electron transport capability), luminescence, thermal stability, and electrochemical stability. Therefore, the compound represented by Formula 1 of the present invention is used as an organic material layer material of an organic electroluminescent device, preferably a light emitting layer material (blue, green and/or red phosphorescent host material), an electron transport layer/injection layer material, and a hole transport layer/injection layer. It can be applied as a layer material, a light emitting auxiliary layer material, and a lifespan improving layer material, and more preferably used as an electron transport layer material or an electron transport auxiliary layer material. The performance and lifetime characteristics of the organic light emitting device including the compound of the present invention can be greatly improved, and as a result, the performance of the full color organic light emitting panel can be maximized.
- a light emitting layer material blue, green and/or red phosphorescent host material
- an electron transport layer/injection layer material e.g., green and/or red phosphorescent host
- X 1 to X 3 are the same as or different from each other, and each independently represent N or C(Ar 3 ), provided that at least one of X 1 to X 3 is N.
- C(Ar 3 ) is plural
- the plural Ar 3 are the same as or different from each other.
- two of X 1 to X 3 may be N, and the rest may be C (Ar 3 ).
- all of X 1 to X 3 may be N.
- the ring containing X 1 to X 3 is a type of nitrogen (N)-containing heteroaromatic ring, and is a monocyclic heteroaryl group (eg, azine group) including at least one nitrogen atom.
- N nitrogen
- a heteroaromatic ring containing at least one nitrogen the compound of the present invention exhibits better electron absorption characteristics and is advantageous for electron injection and transport.
- Ar 1 to Ar 3 are the same as or different from each other, and each independently represents hydrogen, heavy hydrogen, a halogen group, a cyano group, a nitro group, an amino group, a C 1 to C 40 alkyl group, a C 2 to C 40 alkenyl group, or C 2 ⁇ C 40 alkynyl group, C 3 ⁇ C 40 cycloalkyl group, 3 to 40 nuclear atoms heterocycloalkyl group, C 6 ⁇ C 60 aryl group, 5 to 60 nuclear atoms heteroaryl group, C 1 ⁇ C 40 alkyloxy group, C 6 ⁇ C 60 aryloxy group, C 1 ⁇ C 40 alkylsilyl group, C 6 ⁇ C 60 arylsilyl group, C 1 ⁇ C 40 alkyl boron group, C 6 It is selected from the group consisting of ⁇ C 60 arylboron group, C 6 ⁇ C 60 arylphosphine group, C 6 ⁇ C 60 arylphosphin
- the condensed ring is a condensed aliphatic ring of C 3 ⁇ C 60 (specifically, a condensed aliphatic ring of C 3 ⁇ C 30 ), a condensed aromatic ring of C 6 ⁇ C 60 (specifically, a condensed of C 6 ⁇ C 30 aromatic ring), 5-60 membered condensed heteroaromatic ring containing one or more heteroatoms (eg, N, O, S, Se, etc.) (specifically, 5-30 membered heteroatom containing more than one species) Condensed heteroaromatic ring), C 3 ⁇ C 60 Spiro (spiro) ring, and may be one or more selected from the group consisting of combinations thereof.
- a condensed aliphatic ring of C 3 ⁇ C 60 specifically, a condensed aliphatic ring of C 3 ⁇ C 30
- a condensed aromatic ring of C 6 ⁇ C 60 specifically, a condensed of C 6 ⁇ C 30 aromatic
- An aryl boron group, an aryl phosphine group, an aryl phosphine oxide group, an aryl amine group, and a condensed ring are each independently deuterium, halogen, cyano group, nitro group, C 2 ⁇ C 40 alkenyl group, C 2 ⁇ C 40 Alkynyl group, C 3 ⁇ C 40 cycloalkyl group, heterocycloalkyl group having 3 to 40 nuclear atoms, C 1 ⁇ C 40 alkyl group, C 6 ⁇ C 60 aryl group, heteroaryl group having 5 to
- the Ar 1 and Ar 2 may be the same as or different from each other, and may be each independently selected from the group consisting of the following substituents S2-1 to S2-15.
- W 1 to W 4 are each O or S;
- R 16 to R 18 are the same as or different from each other, and are each independently hydrogen, heavy hydrogen, halogen, cyano group, nitro group, C 2 ⁇ C 40 alkenyl group, C 2 ⁇ C 40 alkynyl group, C 3 ⁇ C 40 Cycloalkyl group, heterocycloalkyl group having 3 to 40 nuclear atoms, C 1 ⁇ C 40 alkyl group, C 6 ⁇ C 60 aryl group, heteroaryl group having 5 to 60 nuclear atoms, C 1 ⁇ C 40 alkyl Oxy group, C 6 ⁇ C 60 aryloxy group, C 1 ⁇ C 40 alkylsilyl group, C 6 ⁇ C 60 arylsilyl group, C 1 ⁇ C 40 alkyl boron group, C 6 ⁇ C 60 aryl It is selected from the group consisting of a boron group, a C 6 ⁇ C 60 arylphosphine group, a C 6 ⁇ C 60 arylphosphine oxide group and
- a ring containing X 1 to X 3 in the compound of Formula 1 ( ) may be any one of the following structural formulas Az1-1 to Az1-7, but is not limited thereto.
- Ar 1 and Ar 2 are each as defined in Formula 1, specifically the same as or different from each other, and each independently represents a C 1 ⁇ C 40 alkyl group, a C 3 ⁇ C 40 cycloalkyl group, and 3 to 40 nuclear atoms. It may be selected from the group consisting of a heterocycloalkyl group, a C 6 ⁇ C 60 aryl group, and a heteroaryl group having 5 to 60 nuclear atoms;
- Each of Z 1 to Z 4 may be selected from the group consisting of C(Ar 7 )(Ar 8 ), N(Ar 9 ), O and S,
- Ar 7 to Ar 9 are the same as or different from each other, and each independently represents hydrogen, heavy hydrogen, a halogen group, a cyano group, a nitro group, an amino group, a C 1 ⁇ C 40 alkyl group, a C 2 ⁇ C 40 alkenyl group, a C 2 ⁇ C 40 alkynyl group, C 3 ⁇ C 40 cycloalkyl group, 3 to 40 nuclear atoms heterocycloalkyl group, C 6 ⁇ C 60 aryl group, 5 to 60 nuclear atoms heteroaryl group, C 1 ⁇ C 40 alkyloxy group, C 6 ⁇ C 60 aryloxy group, C 1 ⁇ C 40 alkylsilyl group, C 6 ⁇ C 60 arylsilyl group, C 1 ⁇ C 40 alkyl boron group, C 6 ⁇ C It may be selected from the group consisting of a 60 arylboron group, a C 6 ⁇ C 60 arylphosphine group, a C 6
- An aryl group, an alkyloxy group, an aryloxy group, an alkylsilyl group, an arylsilyl group, an alkyl boron group, an aryl boron group, an aryl phosphine group, an aryl phosphine oxide group, and an aryl amine group each independently represent deuterium, a halogen, a cyano group, Nitro group, C 2 ⁇ C 40 alkenyl group, C 2 ⁇ C 40 alkynyl group, C 3 ⁇ C 40 cycloalkyl group, heterocycloalkyl group having 3 to 40 nuclear atoms, C 1 ⁇ C 40 alkyl group, C 6 ⁇ C
- n is an integer of 0 to 3, and specifically may be an integer of 0 to 2.
- L 1 means a direct bond (single bond).
- L 1 is a divalent linker group, selected from the group consisting of a C 6 ⁇ C 30 arylene group and a heteroarylene group having 5 to 30 nuclear atoms, and specifically It may be selected from the group consisting of a C 6 ⁇ C 18 arylene group and a heteroarylene group having 5 to 18 nuclear atoms.
- a plurality of L 1 may be the same as or different from each other.
- the arylene group and heteroarylene group of L 1 are each independently deuterium, halogen, cyano group, nitro group, C 2 ⁇ C 40 alkenyl group, C 2 ⁇ C 40 alkynyl group, C 3 ⁇ C 40 cycloalkyl group , a heterocycloalkyl group having 3 to 40 nuclear atoms, a C 1 ⁇ C 40 alkyl group, a C 6 ⁇ C 60 aryl group, a heteroaryl group having 5 to 60 nuclear atoms, a C 1 ⁇ C 40 alkyloxy group, C 6 ⁇ C 60 aryloxy group, C 1 ⁇ C 40 alkylsilyl group, C 6 ⁇ C 60 arylsilyl group, C 1 ⁇ C 40 alkylboron group, C 6 ⁇ C 60 arylboron group, Substituted or unsubstituted with one or more substituents selected from the group consisting of C 6 ⁇ C 60 arylphosphine group, C
- L 1 may be a direct bond or selected from the group consisting of a phenylene group, a biphenylene group, a terphenylene group, and a naphthalene group.
- the hydrogen of the phenylene group, biphenylene group, terphenylene group and naphthalene group is deuterium (D), halogen, cyano group, nitro group, C 1 ⁇ C 12 alkyl group, C 6 ⁇ C 10 aryl group, and nucleus It may be substituted or unsubstituted with one or more substituents selected from the group consisting of heteroaryl groups having 5 to 10 atoms.
- L 1 may be a direct bond or any one of the following linker groups L-1 to L-6.
- a plurality of m are the same as or different from each other,
- n is an integer from 0 to 4.
- a plurality of R 19 are the same as or different from each other;
- R 19 is heavy hydrogen, halogen, cyano group, nitro group, C 2 ⁇ C 40 alkenyl group, C 2 ⁇ C 40 alkynyl group, C 3 ⁇ C 40 cycloalkyl group, heterocycloalkyl group having 3 to 40 nuclear atoms , C 1 ⁇ C 40 alkyl group, C 6 ⁇ C 60 aryl group, 5 to 60 nuclear atoms heteroaryl group, C 1 ⁇ C 40 alkyloxy group, C 6 ⁇ C 60 aryloxy group, C 1 ⁇ C 40 alkylsilyl group, C 6 ⁇ C 60 arylsilyl group, C 1 ⁇ C 40 alkyl boron group, C 6 ⁇ C 60 aryl boron group, C 6 ⁇ C 60 arylphosphine group, C It is selected from the group consisting of 6 ⁇ C 60 arylphosphine oxide group and C 6 ⁇ C 60 arylamine group, specifically deuterium (D), halogen, cyan
- R 1 to R 3 are the same as or different from each other, and are each independently selected from the group consisting of a C 6 ⁇ C 60 aryl group and a heteroaryl group having 5 to 60 nuclear atoms However, at least one of R 1 to R 3 is a substituent represented by any one of Formulas 2 to 6.
- any one of R 1 to R 3 is a substituent represented by any one of Formulas 2 to 6, the others are the same as or different from each other, and each independently may be a C 6 to C 60 aryl group.
- R 1 is a substituent represented by any one of Formulas 2 to 6, R 2 and R 3 are the same as or different from each other, and each independently may be a C 6 to C 18 aryl group.
- the substituent represented by any one of Formulas 2 to 6 may be selected from the group consisting of the following substituents S1-1 to S1-16, but is not limited thereto.
- Hydrogen of the aforementioned substituents S1-1 to S1-16 is deuterium (D), halogen, cyano group, nitro group, C 1 ⁇ C 12 alkyl group, C 6 ⁇ C 10 aryl group, and 5 to 10 nuclear atoms It may be substituted or unsubstituted with one or more substituents selected from the group consisting of two heteroaryl groups.
- the compound represented by Formula 1 according to the aforementioned R 1 may be a compound represented by any one of Formulas 7 to 1 below, but is not limited thereto.
- R 2 to R 13 , a, b, c, d, e, f, g, h, i, j, X 1 to X 3 , Ar 1 , Ar 2 , n, L 1 , L 2 , Y 1 to Y 3 and ring A are each as defined in Formula 1 above.
- the compound represented by Formula 1 according to R 1 to R 3 may be a compound represented by any one of Formulas 12 to 16 below, but is not limited thereto.
- R 2 to R 13 , a, b, c, d, e, f, g, h, i, j, X 1 to X 3 , Ar 1 , Ar 2 , n, L 1 , Y 1 to Y 3 and a ring A is each as defined in Formula 1 above,
- k and l are each an integer from 0 to 5;
- a plurality of R 14 are the same as or different from each other;
- a plurality of R 15 are the same as or different from each other,
- R 14 and R 15 are the same as or different from each other, and are each independently deuterium, halogen, cyano group, nitro group, C 2 ⁇ C 40 alkenyl group, C 2 ⁇ C 40 alkynyl group, C 3 ⁇ C 40 cyclo Alkyl group, heterocycloalkyl group having 3 to 40 nuclear atoms, C 1 ⁇ C 40 alkyl group, C 6 ⁇ C 60 aryl group, heteroaryl group having 5 to 60 nuclear atoms, C 1 ⁇ C 40 alkyloxy group , C 6 ⁇ C 60 aryloxy group, C 1 ⁇ C 40 alkylsilyl group, C 6 ⁇ C 60 arylsilyl group, C 1 ⁇ C 40 alkylboron group, C 6 ⁇ C 60 arylboron group , C 6 ⁇ C 60 aryl phosphine group, C 6 ⁇ C 60 aryl phosphine oxide group and C 6 ⁇ C 60 selected from the group consisting of ary
- the compound represented by Formula 1 according to R 1 to R 3 and L 1 may be a compound represented by any one of Formulas 17 to 21, but is not limited thereto.
- R 2 to R 13 , a, b, c, d, e, f, g, h, i, j, X 1 to X 3 , Ar 1 , Ar 2 , Y 1 to Y 3 and Ring A are each represented by the above formula As defined in 1,
- n1 is an integer from 0 to 2;
- k and l are each an integer from 0 to 5;
- a plurality of R 14 are the same as or different from each other;
- a plurality of R 15 are the same as or different from each other;
- R 14 and R 15 are the same as or different from each other, and are each independently deuterium, halogen, cyano group, nitro group, C 2 ⁇ C 40 alkenyl group, C 2 ⁇ C 40 alkynyl group, C 3 ⁇ C 40 cyclo Alkyl group, heterocycloalkyl group having 3 to 40 nuclear atoms, C 1 ⁇ C 40 alkyl group, C 6 ⁇ C 60 aryl group, heteroaryl group having 5 to 60 nuclear atoms, C 1 ⁇ C 40 alkyloxy group , C 6 ⁇ C 60 aryloxy group, C 1 ⁇ C 40 alkylsilyl group, C 6 ⁇ C 60 arylsilyl group, C 1 ⁇ C 40 alkylboron group, C 6 ⁇ C 60 arylboron group , C 6 ⁇ C 60 aryl phosphine group, C 6 ⁇ C 60 aryl phosphine oxide group and C 6 ⁇ C 60 selected from the group consisting of ary
- the compounds represented by Formula 1 according to the present invention described above may be further embodied as the following compounds Inv 1 to Inv 480, but are not limited thereto.
- alkyl means a monovalent substituent derived from a straight or branched chain saturated hydrocarbon having 1 to 40 carbon atoms. Examples thereof include, but are not limited to, methyl, ethyl, propyl, isobutyl, sec-butyl, pentyl, iso-amyl, hexyl, and the like.
- alkenyl refers to a monovalent substituent derived from a straight-chain or branched chain unsaturated hydrocarbon having 2 to 40 carbon atoms and having at least one carbon-carbon double bond. Examples thereof include, but are not limited to, vinyl, allyl, isopropenyl, and 2-butenyl.
- alkynyl refers to a monovalent substituent derived from a straight-chain or branched chain unsaturated hydrocarbon having 2 to 40 carbon atoms and having at least one carbon-carbon triple bond. Examples thereof include, but are not limited to, ethynyl and 2-propynyl.
- cycloalkyl means a monovalent substituent derived from a monocyclic or polycyclic non-aromatic hydrocarbon having 3 to 40 carbon atoms.
- examples of such cycloalkyl include, but are not limited to, cyclopropyl, cyclopentyl, cyclohexyl, norbornyl, adamantine, and the like.
- heterocycloalkyl means a monovalent substituent derived from a non-aromatic hydrocarbon having 3 to 40 nuclear atoms, and one or more carbons in the ring, preferably 1 to 3 carbons, are N, O, S or a heteroatom such as Se.
- heterocycloalkyl include morpholine, piperazine, and the like, but are not limited thereto.
- aryl means a monovalent substituent derived from an aromatic hydrocarbon having 6 to 60 carbon atoms in a single ring or a combination of two or more rings.
- a form in which two or more rings are simply attached to each other (pendant) or condensed may be included. Examples of such aryl include, but are not limited to, phenyl, naphthyl, phenanthryl, anthryl, and the like.
- heteroaryl means a monovalent substituent derived from a monoheterocyclic or polyheterocyclic aromatic hydrocarbon having 5 to 60 nuclear atoms. At this time, at least one carbon, preferably 1 to 3 carbons in the ring is substituted with a heteroatom such as N, O, S or Se.
- a form in which two or more rings are simply attached to each other or condensed may be included, and furthermore, a form condensed with an aryl group may be included.
- heteroaryl examples include 6-membered monocyclic rings such as pyridyl, pyrazinyl, pyrimidinyl, pyridazinyl, triazinyl, phenoxathienyl, indolizinyl, indolyl ( polycyclic rings such as indolyl, purinyl, quinolyl, benzothiazole, carbazolyl and 2-furanyl, N-imidazolyl, 2-isoxazolyl , 2-pyridinyl, 2-pyrimidinyl, and the like, but are not limited thereto.
- 6-membered monocyclic rings such as pyridyl, pyrazinyl, pyrimidinyl, pyridazinyl, triazinyl, phenoxathienyl, indolizinyl, indolyl ( polycyclic rings such as indolyl, purinyl, quinolyl, benzothiazole, carb
- alkyloxy is a monovalent substituent represented by R'O-, wherein R' means alkyl having 1 to 40 carbon atoms, and has a linear, branched or cyclic structure.
- R' means alkyl having 1 to 40 carbon atoms, and has a linear, branched or cyclic structure.
- alkyloxy include, but are not limited to, methoxy, ethoxy, n-propoxy, 1-propoxy, t-butoxy, n-butoxy, pentoxy, and the like.
- aryloxy is a monovalent substituent represented by RO-, wherein R means an aryl having 5 to 40 carbon atoms.
- R means an aryl having 5 to 40 carbon atoms. Examples of such aryloxy include, but are not limited to, phenyloxy, naphthyloxy, and diphenyloxy.
- alkylsilyl means a silyl substituted with an alkyl having 1 to 40 carbon atoms, and includes mono- as well as di- and tri-alkylsilyl.
- arylsilyl means a silyl substituted with an aryl having 5 to 60 carbon atoms, and includes polyarylsilyl such as mono- as well as di- and tri-arylsilyl.
- alkyl boron group refers to a boron group substituted with an alkyl having 1 to 40 carbon atoms
- aryl boron group refers to a boron group substituted with an aryl having 6 to 60 carbon atoms.
- alkylphosphinyl group means a phosphine group substituted with an alkyl having 1 to 40 carbon atoms, and includes mono- as well as di-alkylphosphinyl groups.
- arylphosphinyl group means a phosphine group substituted with a monoaryl or diaryl having 6 to 60 carbon atoms, and includes mono- as well as di-arylphosphinyl groups.
- arylamine means an amine substituted with an aryl having 6 to 60 carbon atoms, and includes mono- as well as di-arylamines.
- heteroarylamine means an amine substituted with heteroaryl having 5 to 60 nuclear atoms, and includes mono- as well as di-heteroarylamine.
- (aryl)(heteroaryl)amine means an amine substituted with an aryl having 6 to 60 carbon atoms and a heteroaryl having 5 to 60 nuclear atoms.
- condensed ring is a condensed aliphatic ring having 3 to 40 carbon atoms, a condensed aromatic ring having 6 to 60 carbon atoms, a condensed heteroaliphatic ring having 3 to 60 nuclear atoms, a condensed heteroaromatic ring having 5 to 60 nuclear atoms, It means a spiro ring having 3 to 60 carbon atoms or a combination thereof.
- the present invention provides an organic electroluminescent device (hereinafter referred to as 'organic EL device') including the compound represented by Formula 1 described above.
- the organic electroluminescent device includes an anode 100, a cathode 200, and interposed between the anode and the cathode. It includes one or more organic material layers 300, and at least one of the one or more organic material layers includes the compound represented by Chemical Formula 1. At this time, the above compounds may be used alone or in combination of two or more.
- the one or more organic material layers 300 may include at least one of a hole injection layer 310, a hole transport layer 320, a light emitting layer 330, an electron transport layer 340, and an electron injection layer 350, Optionally, an electron transport auxiliary layer 360 may be additionally included.
- at least one organic material layer 300 includes the compound represented by Chemical Formula 1 above.
- the organic material layer including the compound of Chemical Formula 1 may be at least one of the light emitting layer 330 , the electron transport layer 340 , and the electron transport auxiliary layer 360 .
- the one or more organic material layers include a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, and an electron injection layer, and optionally may further include an electron transport auxiliary layer.
- the electron transport layer includes the compound represented by Chemical Formula 1.
- the compound represented by Formula 1 is included in the organic electroluminescent device as an electron transport layer material.
- electrons are easily injected into the electron transport layer from the cathode or electron injection layer due to the compound of Formula 1, and can move quickly from the electron transport layer to the light emitting layer, so that the bonding force between holes and electrons in the light emitting layer increases. high. Therefore, the organic electroluminescent device of the present invention is excellent in luminous efficiency, power efficiency, luminance, and the like.
- the compound of Chemical Formula 1 has excellent thermal stability and electrochemical stability, and thus can improve the performance of organic electroluminescent devices.
- the compound of Formula 1 may be used alone or in combination with an electron transport layer material known in the art.
- the electron transport layer material that can be mixed with the compound of Formula 1 includes an electron transport material commonly known in the art.
- usable electron transport materials include oxazole-based compounds, isoxazole-based compounds, triazole-based compounds, isothiazole-based compounds, oxadiazole-based compounds, thiadiazole-based compounds, perylene ( perylene)-based compounds, aluminum complexes (eg Alq 3, tris(8-quinolinolato)-aluminium), gallium complexes (eg Gaq'2OPiv, Gaq'2OAc, 2(Gaq'2)), and the like. These may be used alone or in combination of two or more.
- the mixing ratio thereof is not particularly limited and may be appropriately adjusted within a range known in the art.
- the one or more organic material layers include a hole injection layer, a hole transport layer, a light emitting layer, an electron transport auxiliary layer, an electron transport layer, and an electron injection layer
- the electron transport auxiliary layer contains the compound represented by Formula 1 include
- the compound represented by Formula 1 is included in the organic electroluminescent device as an electron transport auxiliary layer material.
- the compound of Chemical Formula 1 has high triplet energy.
- the efficiency of the organic electroluminescent device may be increased due to a triplet-triplet fusion (TTF) effect.
- TTF triplet-triplet fusion
- the compound of Chemical Formula 1 can prevent diffusion of excitons or holes generated in the light emitting layer to the electron transport layer adjacent to the light emitting layer. Accordingly, the number of excitons contributing to light emission in the light emitting layer is increased, so that the light emitting efficiency of the device can be improved, and the lifespan of the device can be effectively increased by improving durability and stability of the device.
- the compound represented by Chemical Formula 1 may be used alone or in combination with an electron transport layer auxiliary layer material known in the art.
- the auxiliary electron transport layer material that can be mixed with the compound of Formula 1 includes electron transport materials commonly known in the art, such as oxadiazole derivatives, triazole derivatives, and phenanthroline derivatives (eg , BCP), heterocyclic derivatives containing nitrogen, and the like, but are not limited thereto.
- the one or more organic material layers include a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, and an electron injection layer, and may optionally further include an electron transport auxiliary layer, wherein the light emitting layer is a host and a dopant, and the host may be a compound represented by Formula 1 above.
- the light emitting layer of the present invention may include a compound known in the art as a second host in addition to the compound of Formula 1 above.
- the content of the host may be about 70 to 99.9% by weight based on the total amount of the light emitting layer, and the content of the dopant may be about 0.1 to 30% by weight based on the total amount of the light emitting layer.
- the compound represented by Chemical Formula 1 is included as a material for the light emitting layer of the organic electroluminescent device, specifically as a blue, green, or red phosphorescent host material, since the bonding force of holes and electrons in the light emitting layer increases, the efficiency of the organic electroluminescent device ( Luminous efficiency and power efficiency), lifespan, luminance and driving voltage can be improved.
- the compound represented by Formula 1 is preferably included in the organic electroluminescent device as a green and/or red phosphorescent host, fluorescent host, or dopant material.
- the compound represented by Chemical Formula 1 of the present invention is preferably a green phosphorescent exciplex N-type host material for a high-efficiency light emitting layer.
- the structure of the above-described organic electroluminescent device of the present invention is not particularly limited, but, for example, an anode 100, one or more organic material layers 300, and a cathode 200 may be sequentially stacked on a substrate (FIG. 1 to FIG. see 3).
- an insulating layer or an adhesive layer may be inserted at the interface between the electrode and the organic material layer.
- the organic electroluminescent device on a substrate, the anode 100, the hole injection layer 310, the hole transport layer 320, the light emitting layer 330, the electron transport layer 340 and the cathode 200 may have a sequentially stacked structure.
- an electron injection layer 350 may be positioned between the electron transport layer 340 and the cathode 200 .
- an electron transport auxiliary layer 360 may be positioned between the light emitting layer 330 and the electron transport layer 340 (see FIG. 3 ).
- At least one of the organic material layers 300 includes the compound represented by Chemical Formula 1. Except for the above, it can be manufactured by forming an organic material layer and an electrode using materials and methods known in the art.
- the organic layer may be formed by a vacuum deposition method or a solution coating method.
- the solution application method include, but are not limited to, spin coating, dip coating, doctor blading, inkjet printing, or thermal transfer.
- Substrates usable in the present invention are not particularly limited, and non-limiting examples include silicon wafers, quartz, glass plates, metal plates, plastic films and sheets.
- examples of the anode material include metals such as vanadium, chromium, copper, zinc, and gold or alloys thereof; metal oxides such as zinc oxide, indium oxide, indium tin oxide (ITO), and indium zinc oxide (IZO); combinations of metals and oxides such as ZnO:Al or SnO 2 :Sb; conductive polymers such as polythiophene, poly(3-methylthiophene), poly[3,4-(ethylene-1,2-dioxy)thiophene] (PEDT), polypyrrole or polyaniline; and carbon black, but is not limited thereto.
- metals such as vanadium, chromium, copper, zinc, and gold or alloys thereof
- metal oxides such as zinc oxide, indium oxide, indium tin oxide (ITO), and indium zinc oxide (IZO)
- combinations of metals and oxides such as ZnO:Al or SnO 2 :Sb
- conductive polymers such as polythiophene, poly(3
- examples of the cathode material include metals such as magnesium, calcium, sodium, potassium, titanium, indium, yttrium, lithium, gadolinium, aluminum, silver (Ag), tin, or lead or alloys thereof; and multi-layered materials such as LiF/Al or LiO 2 /Al, but are not limited thereto.
- the hole injection layer, the hole transport layer, the light emitting layer, and the electron injection layer are not particularly limited, and conventional materials known in the art may be used.
- Core4 (10g, 14.47mmol) was used instead of Core1 used in Synthesis Example 1, and 4-([1,1'-biphenyl]-4-yl)-6-(4-chlorophenyl)-2-phenylpyrimidine was used instead of 4- Except for using (3-chlorophenyl) -2,6-diphenylpyrimidine (4.13g 12.06mmol), the same procedure as [Synthesis Example 1] was performed to obtain compound Inv 154 (6.7 g, yield 64%).
- Core5 (10g, 19.14mmol) was used instead of Core1 used in Synthesis Example 1, and 4-([1,1'-biphenyl]-4-yl)-6-(4-chlorophenyl)-2-phenylpyrimidine was used instead of 4- Compound Inv 196 ( 7.1 g, yield 63%) was obtained.
- Core10 (10g, 17.46mmol) was used instead of Core1 used in Synthesis Example 1, and 2-([1,1'-biphenyl]-4-yl)-6-(4-chlorophenyl)-2-phenylpyrimidine was used instead of Compound Inv 439 (7.0 g, 7.0 g, Yield 64%) was obtained.
- a glass substrate coated with ITO Indium tin oxide
- ITO Indium tin oxide
- ultrasonic cleaning with solvents such as isopropyl alcohol, acetone, methanol, etc.
- transfer to a UV OZONE cleaner Power sonic 405, Hwashin Tech
- cleaning the substrate for 5 minutes using UV The substrate was transferred to a vacuum evaporator.
- the structures of the NPB and ADN used at this time are as follows.
- a blue organic electroluminescent device was manufactured in the same manner as in Example 1, except that each of the electron transport layer materials in Table 1 was used instead of the compound Inv 121 used as the electron transport layer material.
- a blue organic electroluminescent device was manufactured in the same manner as in Example 1, except that Alq 3 was used instead of Inv 121 used as the electron transport layer material.
- the structure of Alq 3 used at this time is as follows.
- Blue organic electroluminescent devices of Comparative Examples 2 to 5 were manufactured in the same manner as in Example 1, except that the following compounds A to D were used instead of the compound Inv 121 used as the electron transport layer material. At this time, the structures of Compounds A to D used in Comparative Examples 2 to 5 are as follows, respectively.
- Example 1 Inv 121 4.0 459 7.6
- Example 2 Inv 127 3.8 458 7.8
- Example 3 Inv 189 3.7 458 7.4
- Example 4 Inv 196 3.8 459 7.2
- Example 5 Inv 220 3.6 458 8.0
- Example 6 Inv 224 3.9 459 7.6
- Example 7 Inv 269 4.0 458 7.4
- Example 8 Inv 330 3.6 459 7.6
- Example 9 Inv 368 3.7 459 7.2
- Example 10 Inv 385 4.1 458 7.8 Comparative Example 1 Alq 3 4.8 460 5.8 Comparative Example 2 A 5.2 456 5.4 Comparative Example 3 B 4.6 454 5.2 Comparative Example 4 C 5.0 458 5.5 Comparative Example 5 D 4.6 459 6.8
- the blue organic electroluminescence devices of Examples 1 to 10 using the compound of the present invention for the electron transport layer are the blue organic electroluminescent devices of Comparative Example 1 using Alq 3 , a conventional electron transport layer material, for the electron transport layer. It was found that the device exhibited excellent performance in terms of driving voltage, emission peak, and current efficiency compared to the device.
- the blue organic electroluminescent devices of Examples 1 to 10 have lower driving voltage and higher current than the blue organic electroluminescent devices of Comparative Examples 2 to 5 each containing compounds A to D similar to the structure of the present compound as electron transport layer materials. It could be confirmed that it is effective.
- a blue organic electroluminescent device was manufactured as follows.
- a glass substrate coated with ITO (Indium tin oxide) to a thickness of 1500 ⁇ was washed with distilled water and ultrasonic waves. After washing with distilled water, ultrasonic cleaning with solvents such as isopropyl alcohol, acetone, methanol, etc., drying, transferring to a UV OZONE cleaner (Power Sonic 405, Hwashin Tech), and then using UV to clean the substrate for 5 minutes and transferred the substrate to a vacuum evaporator.
- solvents such as isopropyl alcohol, acetone, methanol, etc.
- NPB, ADN and Alq 3 used at this time are as follows.
- a blue organic electroluminescent device was manufactured in the same manner as in Example 11, except that each of the electron transport auxiliary layer materials in Table 2 was used instead of Compound Inv 11 used as the electron transport auxiliary layer material.
- Example 11 In the same manner as in Example 11, except that the compound Inv 11 used as the electron transport auxiliary layer material in Example 11 was not used, and the thickness of Alq 3 , the electron transport layer material, was deposited at 30 nm instead of 25 nm, A blue organic electroluminescent device was fabricated.
- Blue organic light emitting devices of Comparative Examples 7 to 10 were prepared in the same manner as in Example 11, except that Compounds A to D were used instead of Compound Inv 11 used as the electron transport auxiliary layer material. Structures of compounds A to D used at this time are as described in Comparative Examples 2 to 5.
- Example 11 Inv 11 4.0 7.8 458
- Example 12 Inv 34 3.8 7.7 458
- Example 13 Inv 55 3.9 7.6 457
- Example 14 Inv 60 3.9 7.8 457
- Example 15 Inv 121 4.2 7.6 458
- Example 16 Inv 127 4.1 7.2 458
- Example 17 Inv 154 3.6 8.0 457
- Example 18 Inv 189 3.9 7.3 458
- Example 19 Inv 196 4.2 7.4 458
- Example 20 Inv 220 4.1 7.2 457
- Example 21 Inv 224 4.2 7.6 458
- Example 22 Inv 239 3.7 7.8 458
- Example 23 Inv 254 4.0 7.6 457
- Example 24 Inv 263 3.5 8.2 458
- Example 25 Inv 269 4.0 7.2 458
- Example 26 Inv 280 3.7 8.0 457
- Example 27 Inv 295 3.9 7.8 458
- Example 28 Inv 296 3.6 8.1 458
- Example 29 Inv 322
- the blue organic electroluminescent devices of Examples 11 to 40 including an electron transport auxiliary layer formed of the compound according to the present invention were Comparative Example 6 including only an electron transport layer made of Alq 3 without an electron transport auxiliary layer. It was found that the organic electroluminescent device exhibited excellent performance in terms of current efficiency and driving voltage.
- the blue organic electroluminescent devices of Examples 11 to 40 have a lower driving voltage than the blue organic electroluminescent devices of Comparative Examples 7 to 10 each containing compounds A to D similar to the structure of the present compound as electron transport auxiliary layer materials. It was confirmed that it has high current efficiency.
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Abstract
Description
| 샘플 | 전자수송층 재료 | 구동 전압(V) | EL 피크(nm) | 전류효율(cd/A) |
| 실시예 1 | Inv 121 | 4.0 | 459 | 7.6 |
| 실시예 2 | Inv 127 | 3.8 | 458 | 7.8 |
| 실시예 3 | Inv 189 | 3.7 | 458 | 7.4 |
| 실시예 4 | Inv 196 | 3.8 | 459 | 7.2 |
| 실시예 5 | Inv 220 | 3.6 | 458 | 8.0 |
| 실시예 6 | Inv 224 | 3.9 | 459 | 7.6 |
| 실시예 7 | Inv 269 | 4.0 | 458 | 7.4 |
| 실시예 8 | Inv 330 | 3.6 | 459 | 7.6 |
| 실시예 9 | Inv 368 | 3.7 | 459 | 7.2 |
| 실시예 10 | Inv 385 | 4.1 | 458 | 7.8 |
| 비교예 1 | Alq3 | 4.8 | 460 | 5.8 |
| 비교예 2 | A | 5.2 | 456 | 5.4 |
| 비교예 3 | B | 4.6 | 454 | 5.2 |
| 비교예 4 | C | 5.0 | 458 | 5.5 |
| 비교예 5 | D | 4.6 | 459 | 6.8 |
| 샘플 | 전자수송 보조층 재료 | 구동 전압(V) | 전류효율(cd/A) | EL 피크(nm) |
| 실시예 11 | Inv 11 | 4.0 | 7.8 | 458 |
| 실시예 12 | Inv 34 | 3.8 | 7.7 | 458 |
| 실시예 13 | Inv 55 | 3.9 | 7.6 | 457 |
| 실시예 14 | Inv 60 | 3.9 | 7.8 | 457 |
| 실시예 15 | Inv 121 | 4.2 | 7.6 | 458 |
| 실시예 16 | Inv 127 | 4.1 | 7.2 | 458 |
| 실시예 17 | Inv 154 | 3.6 | 8.0 | 457 |
| 실시예 18 | Inv 189 | 3.9 | 7.3 | 458 |
| 실시예 19 | Inv 196 | 4.2 | 7.4 | 458 |
| 실시예 20 | Inv 220 | 4.1 | 7.2 | 457 |
| 실시예 21 | Inv 224 | 4.2 | 7.6 | 458 |
| 실시예 22 | Inv 239 | 3.7 | 7.8 | 458 |
| 실시예 23 | Inv 254 | 4.0 | 7.6 | 457 |
| 실시예 24 | Inv 263 | 3.5 | 8.2 | 458 |
| 실시예 25 | Inv 269 | 4.0 | 7.2 | 458 |
| 실시예 26 | Inv 280 | 3.7 | 8.0 | 457 |
| 실시예 27 | Inv 295 | 3.9 | 7.8 | 458 |
| 실시예 28 | Inv 296 | 3.6 | 8.1 | 458 |
| 실시예 29 | Inv 322 | 3.9 | 7.8 | 457 |
| 실시예 30 | Inv 330 | 4.2 | 7.2 | 458 |
| 실시예 31 | Inv 348 | 3.7 | 7.6 | 457 |
| 실시예 32 | Inv 352 | 3.8 | 7.8 | 457 |
| 실시예 33 | Inv 368 | 4.0 | 7.6 | 457 |
| 실시예 34 | Inv 382 | 3.9 | 7.5 | 458 |
| 실시예 35 | Inv 385 | 3.8 | 7.6 | 458 |
| 실시예 36 | Inv 396 | 3.6 | 8.1 | 457 |
| 실시예 37 | Inv 414 | 4.2 | 7.6 | 458 |
| 실시예 38 | Inv 439 | 3.6 | 8.2 | 458 |
| 실시예 39 | Inv 442 | 3.9 | 7.8 | 457 |
| 실시예 40 | Inv 477 | 3.6 | 7.8 | 458 |
| 비교예 6 | - | 4.7 | 5.8 | 457 |
| 비교예 7 | A | 5.0 | 5.6 | 456 |
| 비교예 8 | B | 4.8 | 5.4 | 454 |
| 비교예 9 | C | 5.2 | 6.0 | 458 |
| 비교예 10 | D | 4.6 | 6.2 | 459 |
Claims (12)
- 하기 화학식 1로 표시되는 화합물:[화학식 1](상기 화학식 1에서,X1 내지 X3는 서로 동일하거나 상이하고, 각각 독립적으로 N 또는 C(Ar3)이고, 다만 X1 내지 X3 중 적어도 어느 하나는 N이고, 이때 C(Ar3)가 복수인 경우, 복수의 Ar3은 서로 동일하거나 상이하고,Ar1 내지 Ar3는 서로 동일하거나 상이하고, 각각 독립적으로 수소, 중수소, 할로겐기, 시아노기, 니트로기, 아미노기, C1~C40의 알킬기, C2~C40의 알케닐기, C2~C40의 알키닐기, C3~C40의 시클로알킬기, 핵원자수 3 내지 40개의 헤테로시클로알킬기, C6~C60의 아릴기, 핵원자수 5 내지 60개의 헤테로아릴기, C1~C40의 알킬옥시기, C6~C60의 아릴옥시기, C1~C40의 알킬실릴기, C6~C60의 아릴실릴기, C1~C40의 알킬보론기, C6~C60의 아릴보론기, C6~C60의 아릴포스핀기, C6~C60의 아릴포스핀옥사이드기 및 C6~C60의 아릴아민기로 이루어진 군에서 선택되거나, 또는 인접한 기와 결합하여 축합 고리를 형성하며;n은 0 내지 3의 정수이고,L1은 단일 결합이거나, 또는 C6~C60의 아릴렌기 및 핵원자수 5 내지 60개의 헤테로아릴렌기로 이루어진 군에서 선택되고;R1 내지 R3는 서로 동일하거나 상이하고, 각각 독립적으로 C6~C60의 아릴기 및 핵원자수 5 내지 60의 헤테로아릴기로 이루어진 군에서 선택되고,다만, R1 내지 R3 중 적어도 어느 하나는 하기 화학식 2 내지 6 중 어느 하나로 표시되는 치환체이고,[화학식 2][화학식 3][화학식 4][화학식 5][화학식 6]상기 화학식 2 내지 6에서,Y1은 C(Ar4)(Ar5), N(Ar6), O 및 S로 이루어진 군에서 선택되고,Y2 및 Y3는 서로 동일하거나 상이하고, 각각 독립적으로 O 또는 S이며,환 A는 벤젠환이고,L2는 단일 결합이거나, 또는 C6~C60의 아릴렌기 및 핵원자수 5 내지 60개의 헤테로아릴렌기로 이루어진 군에서 선택되고;a, c, i 및 j는 각각 0 내지 4의 정수이고,b는 0 내지 3의 정수이며,d, e, f는 각각 0 내지 5의 정수이고,g는 0 내지 8의 정수이며,h는 0 내지 9의 정수이며,Ar4 내지 Ar6 및 R4 내지 R13은 서로 동일하거나 상이하고, 각각 독립적으로 수소, 중수소, 할로겐기, 시아노기, 니트로기, 아미노기, C1~C40의 알킬기, C2~C40의 알케닐기, C2~C40의 알키닐기, C3~C40의 시클로알킬기, 핵원자수 3 내지 40개의 헤테로시클로알킬기, C6~C60의 아릴기, 핵원자수 5 내지 60개의 헤테로아릴기, C1~C40의 알킬옥시기, C6~C60의 아릴옥시기, C1~C40의 알킬실릴기, C6~C60의 아릴실릴기, C1~C40의 알킬보론기, C6~C60의 아릴보론기, C6~C60의 아릴포스핀기, C6~C60의 아릴포스핀옥사이드기 및 C6~C60의 아릴아민기로 이루어진 군에서 선택되고,상기 Ar1 내지 Ar3의 알킬기, 알케닐기, 알키닐기, 시클로알킬기, 헤테로시클로알킬기, 아릴기, 헤테로아릴기, 알킬옥시기, 아릴옥시기, 알킬실릴기, 아릴실릴기, 알킬보론기, 아릴보론기, 아릴포스핀기, 아릴포스핀옥사이드기, 아릴아민기 및 축합 고리, 상기 L1의 아릴렌기 및 헤테로아릴렌기, 상기 R1 내지 R3의 아릴기 및 헤테로아릴기, 및 상기 Ar4 내지 Ar6 및 R4 내지 R13의 알킬기, 알케닐기, 알키닐기, 시클로알킬기, 헤테로시클로알킬기, 아릴기, 헤테로아릴기, 알킬옥시기, 아릴옥시기, 알킬실릴기, 아릴실릴기, 알킬보론기, 아릴보론기, 아릴포스핀기, 아릴포스핀옥사이드기 및 아릴아민기는 각각 독립적으로 중수소, 할로겐, 시아노기, 니트로기, C2~C40의 알케닐기, C2~C40의 알키닐기, C3~C40의 시클로알킬기, 핵원자수 3 내지 40개의 헤테로시클로알킬기, C1~C40의 알킬기, C6~C60의 아릴기, 핵원자수 5 내지 60개의 헤테로아릴기, C1~C40의 알킬옥시기, C6~C60의 아릴옥시기, C1~C40의 알킬실릴기, C6~C60의 아릴실릴기, C1~C40의 알킬보론기, C6~C60의 아릴보론기, C6~C60의 아릴포스핀기, C6~C60의 아릴포스핀옥사이드기 및 C6~C60의 아릴아민기로 이루어진 군에서 선택된 1종 이상의 치환기로 치환 또는 비치환되고, 상기 치환기가 복수인 경우, 이들은 서로 동일하거나 상이함).
- 제1항에 있어서,R1 내지 R3 중 어느 하나는 상기 화학식 2 내지 6 중 어느 하나로 표시되는 치환체이고, 나머지들은 서로 동일하거나 상이하고, 각각 독립적으로 C6~C60의 아릴기인, 화합물.
- 제1항에 있어서,상기 화학식 1로 표시되는 화합물은 하기 화학식 12 내지 16 중 어느 하나로 표시되는 화합물:[화학식 12][화학식 13][화학식 14][화학식 15][화학식 16](상기 화학식 12 내지 16에서,R2 내지 R13, a, b, c, d, e, f, g, h, i, j, X1 내지 X3, Ar1, Ar2, n, L1, Y1 내지 Y3 및 환 A는 각각 상기 화학식 1에서 정의한 바와 같고,k 및 l은 각각 0 내지 5의 정수이고,R14 및 R15는 서로 동일하거나 상이하고, 각각 독립적으로 중수소, 할로겐, 시아노기, 니트로기, C2~C40의 알케닐기, C2~C40의 알키닐기, C3~C40의 시클로알킬기, 핵원자수 3 내지 40개의 헤테로시클로알킬기, C1~C40의 알킬기, C6~C60의 아릴기, 핵원자수 5 내지 60개의 헤테로아릴기, C1~C40의 알킬옥시기, C6~C60의 아릴옥시기, C1~C40의 알킬실릴기, C6~C60의 아릴실릴기, C1~C40의 알킬보론기, C6~C60의 아릴보론기, C6~C60의 아릴포스핀기, C6~C60의 아릴포스핀옥사이드기 및 C6~C60의 아릴아민기로 이루어진 군에서 선택된 것임).
- 제1항에 있어서,L1은 직접 결합이거나, 페닐렌기, 비페닐렌기, 터페닐렌기 및 나프탈렌기로 이루어진 군에서 선택된 것인, 화합물.
- 제1항에 있어서,L1은 직접 결합이거나, 하기 링커기 L-1 내지 L-6 중 어느 하나인 것인, 화합물:(상기 링커기 L-1 내지 L-6에서,*은 상기 화학식 1과 연결되는 부위이고,복수의 m은 서로 동일하거나 상이하고,m은 0 내지 4의 정수이며,복수의 R19는 서로 동일하거나 상이하고,R19는 중수소, 할로겐, 시아노기, 니트로기, C2~C40의 알케닐기, C2~C40의 알키닐기, C3~C40의 시클로알킬기, 핵원자수 3 내지 40개의 헤테로시클로알킬기, C1~C40의 알킬기, C6~C60의 아릴기, 핵원자수 5 내지 60개의 헤테로아릴기, C1~C40의 알킬옥시기, C6~C60의 아릴옥시기, C1~C40의 알킬실릴기, C6~C60의 아릴실릴기, C1~C40의 알킬보론기, C6~C60의 아릴보론기, C6~C60의 아릴포스핀기, C6~C60의 아릴포스핀옥사이드기 및 C6~C60의 아릴아민기로 이루어진 군에서 선택된 것임).
- 제1항에 있어서,X1 내지 X3 함유 환은 하기 구조식 Az1-1 내지 Az1-7 중 어느 하나인 화합물:(상기 구조식 Az1-1 내지 Az1-7에서,Ar1 및 Ar2는 서로 동일하거나 상이하고, 각각 독립적으로 C1~C40의 알킬기, C3~C40의 시클로알킬기, 핵원자수 3 내지 40개의 헤테로시클로알킬기, C6~C60의 아릴기, 및 핵원자수 5 내지 60개의 헤테로아릴기로 이루어진 군에서 선택되고,Z1 내지 Z4는 각각 C(Ar7)(Ar8), N(Ar9), O 및 S로 이루어진 군에서 선택되며,Ar7 내지 Ar9는 서로 동일하거나 상이하고, 각각 독립적으로 수소, 중수소, 할로겐기, 시아노기, 니트로기, 아미노기, C1~C40의 알킬기, C2~C40의 알케닐기, C2~C40의 알키닐기, C3~C40의 시클로알킬기, 핵원자수 3 내지 40개의 헤테로시클로알킬기, C6~C60의 아릴기, 핵원자수 5 내지 60개의 헤테로아릴기, C1~C40의 알킬옥시기, C6~C60의 아릴옥시기, C1~C40의 알킬실릴기, C6~C60의 아릴실릴기, C1~C40의 알킬보론기, C6~C60의 아릴보론기, C6~C60의 아릴포스핀기, C6~C60의 아릴포스핀옥사이드기 및 C6~C60의 아릴아민기로 이루어진 군에서 선택되고,상기 Ar1 및 Ar2의 알킬기, 시클로알킬기, 헤테로시클로알킬기, 아릴기 및 헤테로아릴기, 및 상기 Ar7 내지 Ar9의 알킬기, 알케닐기, 알키닐기, 시클로알킬기, 헤테로시클로알킬기, 아릴기, 헤테로아릴기, 알킬옥시기, 아릴옥시기, 알킬실릴기, 아릴실릴기, 알킬보론기, 아릴보론기, 아릴포스핀기, 아릴포스핀옥사이드기 및 아릴아민기는 각각 독립적으로 중수소, 할로겐, 시아노기, 니트로기, C2~C40의 알케닐기, C2~C40의 알키닐기, C3~C40의 시클로알킬기, 핵원자수 3 내지 40개의 헤테로시클로알킬기, C1~C40의 알킬기, C6~C60의 아릴기, 핵원자수 5 내지 60개의 헤테로아릴기, C1~C40의 알킬옥시기, C6~C60의 아릴옥시기, C1~C40의 알킬실릴기, C6~C60의 아릴실릴기, C1~C40의 알킬보론기, C6~C60의 아릴보론기, C6~C60의 아릴포스핀기, C6~C60의 아릴포스핀옥사이드기 및 C6~C60의 아릴아민기로 이루어진 군에서 선택된 1종 이상의 치환기로 치환 또는 비치환되고, 상기 치환기가 복수인 경우, 이들은 서로 동일하거나 상이함).
- 제1항에 있어서,상기 화학식 1로 표시되는 화합물은 하기 화학식 17 내지 21 중 어느 하나로 표시되는 화합물:[화학식 17][화학식 18][화학식 19][화학식 20][화학식 21](상기 화학식 17 내지 21에서,R2 내지 R13, a, b, c, d, e, f, g, h, i, j, X1 내지 X3, Ar1, Ar2, Y1 내지 Y3 및 환 A는 각각 제1항에서 정의한 바와 같고,n1은 0 내지 2의 정수이며,k 및 l은 각각 0 내지 5의 정수이고,복수의 R14는 서로 동일하거나 상이하고,복수의 R15는 서로 동일하거나 상이하고,R14 및 R15는 서로 동일하거나 상이하고, 각각 독립적으로 중수소, 할로겐, 시아노기, 니트로기, C2~C40의 알케닐기, C2~C40의 알키닐기, C3~C40의 시클로알킬기, 핵원자수 3 내지 40개의 헤테로시클로알킬기, C1~C40의 알킬기, C6~C60의 아릴기, 핵원자수 5 내지 60개의 헤테로아릴기, C1~C40의 알킬옥시기, C6~C60의 아릴옥시기, C1~C40의 알킬실릴기, C6~C60의 아릴실릴기, C1~C40의 알킬보론기, C6~C60의 아릴보론기, C6~C60의 아릴포스핀기, C6~C60의 아릴포스핀옥사이드기 및 C6~C60의 아릴아민기로 이루어진 군에서 선택된 것임).
- 애노드; 캐소드; 상기 애노드와 캐소드 사이에 개재(介在)된 1층 이상의 유기물층을 포함하며,상기 1층 이상의 유기물층 중 적어도 하나는 제1항 내지 제10항 중 어느 한 항에 기재된 화합물을 포함하는 유기 전계 발광 소자.
- 제11항에 있어서,상기 화합물을 포함하는 유기물층은 발광층, 전자수송층 및 전자수송 보조층으로 이루어진 군에서 선택된 적어도 어느 하나인, 유기 전계 발광 소자.
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| US18/726,506 US20250092307A1 (en) | 2022-01-05 | 2023-01-05 | Organic compound and organic electroluminescent device using the same |
| JP2024540821A JP2025502049A (ja) | 2022-01-05 | 2023-01-05 | 有機化合物及びこれを用いた有機エレクトロルミネッセンス素子 |
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| KR (1) | KR20230106215A (ko) |
| CN (1) | CN118451063A (ko) |
| WO (1) | WO2023132668A1 (ko) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117050103A (zh) * | 2023-08-16 | 2023-11-14 | 长春海谱润斯科技股份有限公司 | 一种杂环化合物及其有机电致发光器件 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR102716194B1 (ko) * | 2023-12-01 | 2024-10-15 | 솔루스첨단소재 주식회사 | 유기 화합물 및 이를 이용한 유기 전계 발광 소자 |
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| CN114685462A (zh) * | 2020-12-29 | 2022-07-01 | 江苏三月科技股份有限公司 | 一种以三嗪接二苯并呋喃和三联苯及其衍生物结构为核心骨架的化合物及其应用 |
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- 2022-01-05 KR KR1020220001818A patent/KR20230106215A/ko active Pending
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- 2023-01-05 EP EP23737416.0A patent/EP4461728A4/en active Pending
- 2023-01-05 JP JP2024540821A patent/JP2025502049A/ja active Pending
- 2023-01-05 CN CN202380015593.6A patent/CN118451063A/zh active Pending
- 2023-01-05 US US18/726,506 patent/US20250092307A1/en active Pending
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| CN117050103A (zh) * | 2023-08-16 | 2023-11-14 | 长春海谱润斯科技股份有限公司 | 一种杂环化合物及其有机电致发光器件 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2025502049A (ja) | 2025-01-24 |
| US20250092307A1 (en) | 2025-03-20 |
| EP4461728A1 (en) | 2024-11-13 |
| CN118451063A (zh) | 2024-08-06 |
| EP4461728A4 (en) | 2026-02-11 |
| KR20230106215A (ko) | 2023-07-13 |
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