WO2014030872A2 - 유기광전자소자 및 이를 포함하는 표시장치 - Google Patents
유기광전자소자 및 이를 포함하는 표시장치 Download PDFInfo
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- WO2014030872A2 WO2014030872A2 PCT/KR2013/007286 KR2013007286W WO2014030872A2 WO 2014030872 A2 WO2014030872 A2 WO 2014030872A2 KR 2013007286 W KR2013007286 W KR 2013007286W WO 2014030872 A2 WO2014030872 A2 WO 2014030872A2
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- 229920001940 conductive polymer Polymers 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 125000004093 cyano group Chemical group *C#N 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000002484 cyclic voltammetry Methods 0.000 description 1
- 125000000753 cycloalkyl group Chemical group 0.000 description 1
- 125000001995 cyclobutyl group Chemical group [H]C1([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 1
- 125000001511 cyclopentyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 1
- 125000001559 cyclopropyl group Chemical group [H]C1([H])C([H])([H])C1([H])* 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000002305 electric material Substances 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 150000002220 fluorenes Chemical group 0.000 description 1
- 125000003983 fluorenyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3CC12)* 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 125000002541 furyl group Chemical group 0.000 description 1
- UIWYJDYFSGRHKR-UHFFFAOYSA-N gadolinium atom Chemical compound [Gd] UIWYJDYFSGRHKR-UHFFFAOYSA-N 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000005283 ground state Effects 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 125000002883 imidazolyl group Chemical group 0.000 description 1
- 125000003454 indenyl group Chemical group C1(C=CC2=CC=CC=C12)* 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 229910003437 indium oxide Inorganic materials 0.000 description 1
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 1
- PZOUSPYUWWUPPK-UHFFFAOYSA-N indole Natural products CC1=CC=CC2=C1C=CN2 PZOUSPYUWWUPPK-UHFFFAOYSA-N 0.000 description 1
- RKJUIXBNRJVNHR-UHFFFAOYSA-N indolenine Natural products C1=CC=C2CC=NC2=C1 RKJUIXBNRJVNHR-UHFFFAOYSA-N 0.000 description 1
- 150000002475 indoles Chemical class 0.000 description 1
- 230000009878 intermolecular interaction Effects 0.000 description 1
- 238000007733 ion plating Methods 0.000 description 1
- MILUBEOXRNEUHS-UHFFFAOYSA-N iridium(3+) Chemical compound [Ir+3] MILUBEOXRNEUHS-UHFFFAOYSA-N 0.000 description 1
- 125000002183 isoquinolinyl group Chemical group C1(=NC=CC2=CC=CC=C12)* 0.000 description 1
- 125000005647 linker group Chemical group 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 125000004593 naphthyridinyl group Chemical group N1=C(C=CC2=CC=CN=C12)* 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 125000001715 oxadiazolyl group Chemical group 0.000 description 1
- 125000002971 oxazolyl group Chemical group 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- 125000005561 phenanthryl group Chemical group 0.000 description 1
- 125000001484 phenothiazinyl group Chemical class C1(=CC=CC=2SC3=CC=CC=C3NC12)* 0.000 description 1
- 125000000843 phenylene group Chemical group C1(=C(C=CC=C1)*)* 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920000767 polyaniline Polymers 0.000 description 1
- 229920000128 polypyrrole Polymers 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 125000003373 pyrazinyl group Chemical group 0.000 description 1
- 125000003226 pyrazolyl group Chemical group 0.000 description 1
- 125000001725 pyrenyl group Chemical group 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 125000004076 pyridyl group Chemical group 0.000 description 1
- 125000000714 pyrimidinyl group Chemical group 0.000 description 1
- 125000000168 pyrrolyl group Chemical group 0.000 description 1
- 125000002294 quinazolinyl group Chemical group N1=C(N=CC2=CC=CC=C12)* 0.000 description 1
- 125000002943 quinolinyl group Chemical group N1=C(C=CC2=CC=CC=C12)* 0.000 description 1
- 125000001567 quinoxalinyl group Chemical group N1=C(C=NC2=CC=CC=C12)* 0.000 description 1
- 230000027756 respiratory electron transport chain Effects 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- ZGNPLWZYVAFUNZ-UHFFFAOYSA-N tert-butylphosphane Chemical compound CC(C)(C)P ZGNPLWZYVAFUNZ-UHFFFAOYSA-N 0.000 description 1
- 125000001935 tetracenyl group Chemical group C1(=CC=CC2=CC3=CC4=CC=CC=C4C=C3C=C12)* 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 125000001113 thiadiazolyl group Chemical group 0.000 description 1
- 125000000335 thiazolyl group Chemical group 0.000 description 1
- 125000001544 thienyl group Chemical group 0.000 description 1
- 229930192474 thiophene Natural products 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 125000004306 triazinyl group Chemical group 0.000 description 1
- 125000001425 triazolyl group Chemical group 0.000 description 1
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 description 1
- 125000003960 triphenylenyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3C3=CC=CC=C3C12)* 0.000 description 1
- 238000004506 ultrasonic cleaning Methods 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 1
Classifications
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- H10K85/649—Aromatic compounds comprising a hetero atom
- H10K85/657—Polycyclic condensed heteroaromatic hydrocarbons
- H10K85/6572—Polycyclic condensed heteroaromatic hydrocarbons comprising only nitrogen in the heteroaromatic polycondensed ring system, e.g. phenanthroline or carbazole
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- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
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- H10K85/636—Amine compounds having at least two aryl rest on at least one amine-nitrogen atom, e.g. triphenylamine comprising heteroaromatic hydrocarbons as substituents on the nitrogen atom
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- C09K2211/1018—Heterocyclic compounds
- C09K2211/1025—Heterocyclic compounds characterised by ligands
- C09K2211/1092—Heterocyclic compounds characterised by ligands containing sulfur as the only heteroatom
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- H10K2101/40—Interrelation of parameters between multiple constituent active layers or sublayers, e.g. HOMO values in adjacent layers
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- H10K2102/10—Transparent electrodes, e.g. using graphene
- H10K2102/101—Transparent electrodes, e.g. using graphene comprising transparent conductive oxides [TCO]
- H10K2102/103—Transparent electrodes, e.g. using graphene comprising transparent conductive oxides [TCO] comprising indium oxides, e.g. ITO
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- H10K50/00—Organic light-emitting devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/549—Organic PV cells
Definitions
- the present invention relates to an organic optoelectronic device and a display device including the same.
- Organic optoelectronic devices refer to devices requiring charge exchange between an electrode and an organic material using holes or electrons.
- Organic optoelectronic devices can be divided into two types according to the operating principle. First, by photons introduced into the device from an external light source
- An exciton is formed in the organic layer and the aciton is formed by electrons and holes.
- the second is an electronic device in which holes or electrons are injected into an organic semiconductor forming an interface with the electrodes by applying voltage or current to two or more electrodes, and operated by the injected electrons and holes.
- Organic light emitting diodes which are representative organic optoelectronic devices, are attracting attention as the demand for flat panel displays increases.
- organic light emitting phenomenon refers to a phenomenon in which an electric material is converted into light energy using an organic material.
- Such an organic light emitting device converts electrical energy into light by applying an electric current to an organic light emitting material, and has a structure in which a functional organic material layer is inserted between an anode and a cathode. Where the organic layer is
- the organic photoelectric device is often composed of a multi-layer structure composed of different materials, for example, it may be made of a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, an electron injection layer.
- the light emitting material may be classified into blue, green, and red light emitting materials and yellow and orange light emitting materials required to achieve a better natural color according to the light emitting color.
- a host / dopant system may be used as a light emitting material.
- the organic layer of the material such as a hole injection material, a hole transport material, a light emitting material, an electron transport material, an electron injection material, a host and / or a plate of the light emitting material. It should be preceded by a stable and efficient material that is supported by a stable and efficient material. Until now, the development of a stable and efficient organic material layer for an organic light emitting device has not been sufficiently carried out. have. The need for such a material development is the same for the other organic optoelectronic devices described above.
- the present invention provides a compound for an organic optoelectronic device, which can serve as light emitting, or hole injection and transport, and can serve as a light emitting host with an appropriate dopant.
- a compound for an organic optoelectronic device which can serve as light emitting, or hole injection and transport, and can serve as a light emitting host with an appropriate dopant.
- an anode, a cathode and at least one organic thin film layer formed between the anode and the cathode the organic thin film layer is a light emitting layer, a hole transport layer, a hole injection layer, an electron transport layer, an electron injection layer or these
- the organic thin film layer includes a light emitting layer and a plurality of hole transport layers, and among the plurality of hole transport layers, the hole transport layer adjacent to the light emitting layer is represented by Formula A-1. It includes a compound represented, wherein any one of the hole transport layer that is not adjacent to the light emitting layer includes a compound represented by the following formula B-1
- An organic optoelectronic device is provided.
- X is -0-, -S-, -S (O)-, -S (0) 2 -or -CR'R "-, and R 1 to R 9 , R 'and R Are independently of each other hydrogen, deuterium, a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C2 to C30 heteroaryl group, or a combination thereof, L 1 And L 2 is independently a substituted or unsubstituted C2 to C10 alkenylene group, a substituted or unsubstituted C2 to C10 alkynylene group, a substituted or unsubstituted C6 to C30 arylene group, a substituted or unsubstituted C2 to A C30 heteroarylene group or a combination thereof, Ar 1 is a substituted or unsubstituted C6 to C30 ,
- R 1 to R 4 are each independently hydrogen, hydrogen, substituted or unsubstituted C1 to C10 alkyl group, substituted or unsubstituted C6 to C30 aryl group, substituted or unsubstituted C2 to C30 hetero An aryl group or a combination thereof, R 1 and R 2 may form a fused ring with each other, R 3 and R 4 may form a fused ring with each other, and Ar 1 to Ar 3 may be independently substituted or unsubstituted.
- a C6 to C30 aryl group or a substituted or unsubstituted C2 to C30 heteroaryl group, L 1 to L 4 are each independently a substituted or unsubstituted C2 to C10 alkenylene group, a substituted or unsubstituted C2 to C10 alkoxy
- a display device including the organic optoelectronic device according to the embodiment of the present invention described above may be provided.
- the present invention provides a compound for an organic optoelectronic device that can act as a light emitting host with a suitable dopant, and can serve as light emission or hole injection and transport.
- an organic optoelectronic device having excellent properties may be provided by appropriately combining the compound-ol compound layer for an organic optoelectronic device.
- FIG. 1 and 2 are cross-sectional views illustrating various embodiments of an organic light emitting device according to an embodiment of the present invention.
- organic light emitting element 200 organic light emitting element
- hetero As used herein, unless otherwise defined, "hetero"'is contained in one ring group containing 1 to 3 heteroatoms selected from the group consisting of N : 0, S and P, the remainder is carbon do.
- alkyl group means a saturated aliphatic hydrocarbon group, unless otherwise defined.
- the alkyl group may have 1 to 20 carbon atoms.
- the alkyl group may be a medium alkyl group having 1 to 10 carbon atoms.
- the alkyl group may also be a lower alkyl group having 1 to 6 carbon atoms.
- a C1 to C4 alkyl group has 1 to 4 carbon atoms in the alkyl chain, i.e., the alkyl chain is methyl, ethyl, propyl, iso-propyl, ⁇ -butyl, iso-butyl, sec-butyl and t-butyl Selected from the group consisting of:
- Typical alkyl groups include methyl, ethyl, propyl, isopropyl, butyl, isobutyl, t-butyl, pentyl, nucleus, cyclopropyl, cyclobutyl, cyclopentyl, cyclonuclear
- One or more substituents individually and independently selected from the group.
- the alkyl group may be branched, straight chain or cyclic.
- alkenyl group means a substituent in which at least two carbon atoms consist of at least one carbon-carbon double bond
- alkynyl group means at least two carbon atoms in at least one carbon-carbon triple bond
- Aryl group means an aryl group including carboxyaryl (eg, phenyl) having at least one ring having a shared pi electron system.
- the term includes groups of polycyclic (ie, rings having adjacent pairs of carbon atoms) that are monocyclic or fused rings.
- heteroaryl refers to an aryl group comprising heterocyclic aryl (eg, pyridine) having at least one ring having a shared pi electron field.
- the term includes monocyclic or fused ring polycyclic (ie, rings having adjacent pairs of carbon atoms) groups.
- substituted includes an alkyl group having 1 to 30 carbon atoms, an alkylsilyl group having 1 to 10 carbon atoms, a cycloalkyl group having 3 to 30 carbon atoms, an aryl group having 6 to 30 carbon atoms, and a carbon group having 2 to 30 carbon atoms.
- a substituted or unsubstituted C6 to C30 aryl group and / or a substituted or unsubstituted C2 to C30 heteroaryl group is a substituted or unsubstituted phenyl group, a substituted or unsubstituted naphthyl group, a substituted or Unsubstituted
- Naphthacenyl group substituted or unsubstituted pyrenyl group, substituted or unsubstituted biphenyl group, substituted or unsubstituted P-terphenyl group, substituted or unsubstituted m-terphenyl group, substituted or unsubstituted chrysenyl group, substituted Or unsubstituted triphenylenyl group ⁇ , substituted or unsubstituted perenyl group, substituted or unsubstituted indenyl group, substituted or unsubstituted furanyl group, substituted or unsubstituted thiophenyl group, substituted or unsubstituted pyrrolyl group , Substituted or unsubstituted pyrazolyl group, substituted or unsubstituted imidazolyl group, substituted or unsubstituted
- Triazolyl group substituted or unsubstituted oxazolyl group, substituted or unsubstituted thiazolyl group, substituted or unsubstituted oxadiazolyl group, substituted or unsubstituted thiadiazolyl group, substituted or unsubstituted pyridyl group, A substituted or unsubstituted pyrimidinyl group, substituted or
- Quinazolinyl group substituted or unsubstituted quinoxalinyl group, substituted or unsubstituted Naphthyridinyl groups, substituted or unsubstituted benzoxazinyl groups, substituted or unsubstituted benzthiazinyl groups, substituted or unsubstituted acridinyl groups, substituted or unsubstituted phenazineyl groups, substituted or unsubstituted phenothiazines Diary, substituted or unsubstituted phenoxazineyl group, substituted or unsubstituted fluorenyl group, or a combination thereof, but is not limited thereto.
- an anode, a cathode and at least one organic thin film layer formed between the anode and the cathode the organic thin film layer is a light emitting layer, a hole transport layer, a hole injection layer, an electron transport layer, an electron injection layer or these
- the organic thin film layer includes a light emitting layer and a plurality of hole transport layers, and among the plurality of hole transport layers, the hole transport layer adjacent to the light emitting layer includes a compound represented by the following Formula A-1, Any one of the non-adjacent hole transport layers includes a compound represented by the following formula (B-1)
- An organic optoelectronic device is provided.
- X is -0-, -S-, -S (0)-, -S (0) 2 -or -CR'R "-, and R 1 to R 9 , R 'and FT are independently of each other hydrogen, deuterium, a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C2 to C30 heteroaryl group, or a combination thereof, L 1 and L 2 independently of each other, a substituted or unsubstituted C2 to C10 alkenylene group, a substituted or unsubstituted C2 to C10 alkynylene group, a substituted or unsubstituted C6 to C30 arylene group, substituted Or an unsubstituted C2 to C30 heteroarylene group or a combination thereof, Ar 1 is a substituted or unsubstituted C6 to C30
- R 1 to R 4 are each independently hydrogen, hydrogen, substituted or unsubstituted C1 to C10 alkyl group, substituted or unsubstituted C6 to C30 aryl group, substituted or unsubstituted C2 to A C30 heteroaryl group or a combination thereof, R 1 and R 2 may form a fused ring with each other, R 3 and R 4 may form a fused ring with each other, and Ar 1 to Ar 3 may be independently substituted with each other; Or an unsubstituted C6 to C30 aryl group or a substituted or unsubstituted C2 to C30 heteroaryl group, L 1 to L 4 are each independently a substituted or unsubstituted C2 to C10 alkenylene group, a substituted or unsubstituted C2 To C10 alkynylene group, a substituted or unsubstituted C6 to C30 arylene group, a substituted or unsubstituted C2
- the organic optoelectronic device according to the exemplary embodiment of the present invention may include a plurality of hole transport layers. In this case, electron hopping is smoother than a single hole transport layer, thereby increasing the hole transport efficiency.
- the organic optoelectronic device according to the exemplary embodiment of the present invention has excellent electrochemical and thermal stability, thereby improving lifespan characteristics and high luminous efficiency even at a low driving voltage.
- the hole transport layer adjacent to the light emitting layer of the plurality of hole transport layers may comprise a compound represented by phase Z chemistry—Formula A-1.
- the compound represented by Formula (A-1) has a structure in which a substituent is selectively bonded to a core portion to which two carbazole groups are bonded.
- the compound represented by Formula A-1 may synthesize a compound having various energy bands 3 ⁇ 4 by introducing a variety of different substituents to the substituents substituted in the core portion and the core portion, it is possible to vary the conditions required in the hole transport layer Compounds that can be stratified easily
- the hole transport ability is enhanced to have an excellent effect in terms of efficiency and driving voltage, and excellent in electrochemical and thermal stability
- the triplet energy band gap is increased, thereby increasing the triplet energy band gap. It can be very usefully applied to the hole layer of the device.
- any one of the hole transport layer not adjacent to the light emitting layer may include a compound represented by the following formula (B-1).
- the compound represented by B-1 may be an amine compound in which at least one substituent in the amine is substituted with a carbazole group.
- R 1 and R 2 may form a fused ring with each other, and R 3 and R 4 may form a fused ring with each other. In this case, thermal stability is increased, and electron transfer and injection characteristics are increased.
- the organic optoelectronic device may have improved lifetime characteristics and may have high luminous efficacy even at a low driving voltage.
- the compound represented by Formula A-1 may be represented by the following Formula A-2. [Formula A-2]
- X is -0-, -S-, -S (O)-, -S (0) 2 -or -CR'R "-, and R 1 to R 9 , R 'and R Are independently of each other hydrogen, deuterium, a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C2 to C30 heteroaryl group, or a combination thereof
- L 1 And L 2 are each independently a substituted or unsubstituted C2 to C10 alkenylene group, a substituted or unsubstituted C2 to C10 alkynylene group, a substituted or unsubstituted C6 to C30 arylene group, a substituted or unsubstituted C2 to A C30 heteroarylene group or a combination thereof
- Ar 1 is a substituted or unsubstituted C6 to C30
- the compound represented by Chemical Formula A-1 may be represented by the following Chemical Formula A-3. .
- X is -0-, -S-, -S (O)-, -S (0) 2 -or -CR'R "-, and R 9 , R 'and R" are Independently of one another, hydrogen, hydrogen, substituted or unsubstituted C1 to C10 alkyl groups, substituted or unsubstituted C6 to C30 aryl groups, substituted or unsubstituted C2 to C30 heteroaryl groups, or a combination thereof, L 1 and L 2 independently of each other, a substituted or unsubstituted C2 to C10 alkenylene group, a substituted or unsubstituted C2 to C10 alkynylene group, a substituted or unsubstituted C6 to C30 arylene group, a substituted or unsubstituted C2 to C30 A heteroarylene group or a combination thereof, Ar 1 is a substituted or unsubstituted C6 to C30 aryl group,
- the compound represented by Chemical Formula A-1 may be represented by the following Chemical Formula A-4.
- X is -0-, -S-, -S (0)-, -S (0) 2 -or -CR'R "-, R 1 to R 9 , R 'and R Are independently of each other hydrogen, deuterium, a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C2 to C30 heteroaryl group, or a combination thereof
- L 1 And L 2 are each independently a substituted or unsubstituted C2 to C10 alkenylene group, a substituted or unsubstituted C2 to C10 alkynylene group, a substituted or unsubstituted C6 to C30 arylene group, a substituted or unsubstituted C2 to A C30 heteroarylene group or a combination thereof
- Ar l is a substituted or unsubstituted C6 to C30
- the compound having the structure as shown in Formula A-4 has improved hole transport ability, thereby lowering the driving voltage of the organic optoelectronic device and increasing efficiency.
- the compound represented by Chemical Formula A-1 may be represented by the following Chemical Formula A-5.
- X is -0-, -S-, — S (0)-, -S (0) 2-, or -CR'R "-, and R 1 to R 9 , R 'and R 1 ′ independently of one another, hydrogen, deuterium, a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C2 to C30 heteroaryl group, or a combination thereof, L 1 and L 2 are each independently a substituted or unsubstituted C2 to C10 alkenylene group, a substituted or unsubstituted C2 to C10 alkynylene group, a substituted or unsubstituted C6 to C30 arylene group, a substituted or unsubstituted C2 To C30 heteroarylene group or a combination thereof, Ar 1 is substituted One
- ⁇ is an integer of any one of 0 to 3
- m is an integer of any one of 0 to 3.
- Compounds such as Chemical Formula A-5 may improve thermal stability and improve half-life of the organic optoelectronic device. .
- X in Formula A-1 may be -0-.
- the luminous efficacy of the organic optoelectronic device can be increased.
- X in Formula A-1 may be, and when using such a compound, the luminous efficiency and half-life of an organic optoelectronic device may be increased.
- X in Formula A-1 may be -CR'R "-, and when using such a compound, the half-life of an organic optoelectronic device may be increased.
- ⁇ ⁇ 1 of the formula A-1 may be an organic optoelectronic device a substituted or unsubstituted phenyl group.
- L 1 and L 2 of Formula A-1 are mutually
- It may be an organic optoelectronic device which is independently a phenyl group.
- X in formula A-1 is -CR'R ' 1- , wherein R' and R "are each independently a substituted or unsubstituted methyl group, or a substituted or unsubstituted phenyl group. It may be an organic optoelectronic device.
- the compound represented by Formula A-1 may be represented by any one of the following Formulas A-6 to A-26.
- the compound represented by Formula A-1 may be represented by the following Formula
- the compound represented by Formula A-1 may be represented by any one of the following Formulas A-37 to A-39. [Formula A-37] [Formula A-38] [Formula A-39]
- R 1 to R 4 are each independently hydrogen, deuterium, a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C6 to C30 aryl group, or A combination thereof, R 1 and R 2 may form a fused ring with each other, R 3 and R 4 may form a fused ring with each other,
- Ar l is a substituted or unsubstituted phenyl group or a substituted or unsubstituted group
- AT 2 and Ar 3 are each independently a substituted or unsubstituted phenyl group, a substituted or unsubstituted naphthalene group, a substituted or unsubstituted fluorene group, a substituted or unsubstituted bisfluorene group, a substituted or unsubstituted tree A phenylene group, a substituted or unsubstituted dibenzofuran group, or a substituted or unsubstituted dibenzothiophene group,
- L 1 to L 4 are each independently a substituted or unsubstituted C6 to C30 arylene group
- nl to n4 may be independently an organic optoelectronic device that is an integer of any one of 0 to 3.
- the compound represented by Chemical Formula B-1 may be represented by any one of the following Chemical Formulas J-1 to J-144. However, it is not limited thereto.
- the compound for an organic optoelectronic device comprising the compound as described above
- the glass transition temperature is higher than iio ° c and the thermal decomposition temperature is higher than 4oo ° c. This enables the implementation of high efficiency organic optoelectronic devices.
- the compound for an organic optoelectronic device including the compound as described above may serve as light emission, hole injection and / or transport, and may also serve as a light emitting host with a suitable dopant. That is, the compound for an organic optoelectronic device may be used as a host material of phosphorescence or fluorescence, a light emitting dopant material of blue color, or a hole transporting material.
- Compound for an organic optoelectronic device according to an embodiment of the present invention is used in the organic thin film layer to improve the life characteristics, efficiency characteristics, electrochemical stability and thermal stability of the organic optoelectronic device, it is possible to lower the driving voltage.
- the organic optoelectronic device refers to an organic photoelectric device, an organic light emitting device, an organic solar cell, an organic transistor, an organic photosensitive drum, and an organic memory device.
- a compound for an organic optoelectronic device according to an embodiment of the present invention is included in an electrode or an electrode buffer layer to increase quantum efficiency, and in the case of an organic transistor, a gate, a source-drain electrode, or the like may be used as an electrode material. Can be used.
- the organic thin film layer may include a layer selected from the group consisting of a light emitting layer, a hole transport layer, a hole injection layer, an electron transport layer, an electron injection layer, a hole blocking layer and a combination thereof.
- FIG. 1 and 2 illustrate an organic light emitting diode according to an embodiment
- an organic optoelectronic device 100 includes an anode 120 and a cathode 110 facing each other, and an organic layer 105 positioned between the anode 120 and the cathode 110. Include.
- the anode 120 includes a cathode material, and a material having a large work function is preferable as the anode material so that hole injection may be smoothly performed into the organic thin film layer.
- the positive electrode material may include a metal such as nickel, platinum, vanadium, chromium, copper, zinc, gold or an alloy thereof, zinc oxide, indium oxide,
- Metal oxides such as phosphate tin oxide ( ⁇ ) and indium zinc oxide (IZO); and combinations of metals and oxides such as ZnO and A1 or Sn0 2 and Sb; and poly (3-methylthiophene)
- Conductive polymers such as poly [3,4- (ethylene-1,2-dioxy) thiophene] (polyehtylenedioxythiophene: PEDT), polypyrrole, and polyaniline, and the like, but are not limited thereto.
- PEDT polyehtylenedioxythiophene
- PEDT polyehtylenedioxythiophene
- PEDT polypyrrole
- polyaniline and the like, but are not limited thereto.
- a transparent electrode including indium tin oxide (ITO) may be used as the anode.
- the negative electrode 110 includes a negative electrode material, and the negative electrode material is generally a material having a small work function to facilitate electron injection into the organic thin film layer.
- anode material examples include metals such as magnesium, calcium, sodium, potassium, titanium, indium, yttrium, lithium, gadolinium, aluminum, silver, tin, lead, cesium, barium, or alloys thereof, and LiF / Al.
- Multilayer structure materials such as, Li0 2 / Al, LiF / Ca, LiF / Al, and Ba! VCa, and the like, but are not limited thereto.
- a metal electrode such as aluminum may be used as the cathode.
- the organic light emitting diode 200 may have holes in addition to the light emitting layer 230.
- the hole auxiliary layer 140 may further increase hole injection and / or hole mobility between the anode 120 and the emission layer 230 and block electrons.
- the hole auxiliary layer 140 may be, for example, a hole transport layer, a hole injection layer, and / or an electron blocking layer, and may include at least one layer.
- the above-described compound may be included in the light emitting layer 230 and / or hole auxiliary layer 140.
- the organic layer 105 of FIG. 1 or 2 may further include an electron injection layer, an electron transport layer, an auxiliary electron transport layer, a hole transport layer, an auxiliary hole transport layer, a hole injection layer, or a combination thereof.
- the compounds of the present invention can be included in these organic layers.
- the organic light emitting diodes 100 and 200 may be formed by forming a cathode or an anode on a substrate, followed by a dry film method such as evaporation, sputtering, plasma plating, and ion plating; Alternatively, the organic layer may be formed by a wet film method such as spin coating, dipping, flow coating, or the like, followed by forming a cathode or an anode thereon.
- the HOMO level of the compound represented by Formula A-1 may be an organic optoelectronic device of 5.4eV or more and 5.8eV or less.
- the triplet excitation energy (T1) of the compound represented by the formula A-1 may be an organic optoelectronic device that is 2.5eV or more and 2.9eV or less.
- the HOMO level of the compound represented by Formula B-1 may be an organic optoelectronic device that is 5.2eV or more and 5.6eV or less.
- a display device including the organic light emitting diode is provided.
- Diphenylfluorene (Wischem Co., Ltd.) 10.21 g (25.70 ftmol) NaO (t-Bu) 2.59 g (26.93 mmol) and 0.224 g (0.24 mmmol) of Pd 2 (dba) 3 were suspended in 100 ml of toluene, and then 0.15 mL (0.73 mmol) of tri-tertiary-butylphosphine was added thereto, followed by stirring under reflux for 18 hours. After completion of reaction, extract organic layer with magnesium, followed by extraction with toluene and distilled water.
- Carbazole-3-boronic acid 10 g (47.39 mmol), 9-terphenyl-3-bromo carbazole 24.73 g (52.13 mmol) was suspended in 200 mL of toluene and 100 mL of water in 0.548 g (0.47 mmol) of Pd (PP 3 ) 4 , 13.10 g (94.78 mmmol) of K 2 CO 3, and refluxed under nitrogen stream for 18 hours. Stirred. After completion of the reaction, the mixture was extracted with toluene and distilled water, the organic layer was dried over magnesium sulfate, filtered, and the filtrate was concentrated under reduced pressure.
- Dibenzofuran (Wischem Co., Ltd.) 8.31 g (25.7 mmol) NaO (t-Bu) 2.59 g (26.93 mmol), Pd 2 (dba) 3 0.224 g (0.24 mmmol) suspended in 100 ml of toluene] After quenching, tri-tertary-butylphosphine 0.15 mL (0.73 mmol) was added thereto, and the mixture was stirred under reflux for 12 hours.
- Dibenzothiophene (Wischem Co., Ltd.) 8.72 g (25.7 mmol) NaO (t-Bu) 2.59 g (26.93 mmol) Pd 2 (dba) 3 0.224 g (0.24 mmniol) suspended in 100 ml of toluene Then tri-tertary- butylphosphine 0.15 mL (0.73 mmol) was added and stirred under reflux for 12 hours.
- the product was purified by silica gel column chromatography with n -nucleic acid / dichloromethane (8: 2 volume ratio) and recrystallized with dichloromethane and acetone to give the target compound A-26 (LC Mass: 743 g / mol) as 12.7. g (yield 83%) was obtained.
- Dibenzothiophene 8.72 g (25.70 mmol) NaO (t-Bu) 2.59 g (26.93 mmol), Pd 2 (dba) 3 0.224 g (0.24 mmmol) were suspended in 100 ml of toluene and then tri-tertiary- 0.15 mL (0.73 mmol) of butylphosphine was added thereto, and the mixture was stirred under reflux for 12 hours.
- a transport layer was formed. Subsequently, an auxiliary hole transport layer having a thickness of 100 A was formed by vacuum deposition using the compound prepared in Synthesis Example 1. (4,4'- ⁇ , ⁇ '-dicarbazole) biphenyl [CBP] is used as a host on the auxiliary hole transport layer, and doptro tris (2-phenylpyridine) iridium (III) [Ir (ppy) 3] was doped to 5% by weight to form a light emitting layer of 300 A thickness by vacuum deposition.
- biphenyl-bis (8-hydroxyquinoline) aluminum [Balq] was vacuum deposited on the emission layer to form a hole blocking layer having a thickness of 50 A.
- An organic light emitting device was manufactured.
- the organic light emitting device has a structure having five organic thin film layers, specifically
- An organic light emitting diode was manufactured according to the same method as Example 1 except for using Synthesis Example 2 instead of Synthesis Example 1.
- An organic light emitting diode was manufactured according to the same method as Example 1 except for using Synthesis Example 13 instead of Synthesis Example 1.
- An organic light emitting diode was manufactured according to the same method as Example 1 except for using Synthesis Example 16 instead of Synthesis Example 1.
- An organic light emitting diode was manufactured according to the same method as Example 1 except for using Synthesis Example 23 instead of Synthesis Example 1.
- Example 1 of the device Synthesis Example 29 was used instead of Synthesis Example 1. Except for the organic light emitting device was manufactured in the same manner.
- Example 1 ⁇ , ⁇ '-di (1-naphthyl) - ⁇ , ⁇ '- diphenylbenzidine instead of HT-1
- An organic light emitting diode was manufactured according to the same method except that [ ⁇ ] was used and ⁇ , ⁇ '-di (1-naphthyl) - ⁇ , ⁇ '-diphenylbenzidine [ ⁇ ] was used instead of Synthesis Example 1. It was.
- Example 1 an organic light emitting device was manufactured in the same manner as in Example 1, except that HT-1ol was used instead of Synthesis Example 1.
- HT-1 was then vacuum deposited to form a 200 A thick hole transport layer.
- An auxiliary hole transport layer having a thickness of 100 A was formed by vacuum deposition using the compound prepared in Synthesis Example 1 on the hole transport layer. (4,4'- ⁇ , ⁇ '-dicarbazole) biphenyl [CBP] is used as a host on top of the auxiliary hole transport layer. 6
- biphenyl-bis (8-hydroxyquinoline) aluminum [Balq] was vacuum deposited on the emission layer to form a hole blocking layer having a thickness of 50A.
- Tris (8-hydroxyquinoline) aluminum [Alq3] was vacuum deposited on the hole blocking layer to form an electron transport layer having a thickness of 250 A, and a vacuum was sequentially deposited on LiF lOA and A1 1000 A on the electron transport layer to form a cathode.
- an organic light emitting device was manufactured.
- the organic light emitting device has a structure having six organic thin layers, specifically
- An organic light emitting diode was manufactured according to the same method as Example 8 except for using Synthesis Example 2 instead of Synthesis Example 1.
- An organic light emitting diode was manufactured according to the same method as Example 8 except for using Synthesis Example 13 instead of Synthesis Example 1.
- An organic light emitting diode was manufactured according to the same method as Example 8 except for using Synthesis Example 16 instead of Synthesis Example 1.
- An organic light emitting diode was manufactured according to the same method as Example 8 except for using Synthesis Example 23 instead of Synthesis Example 1.
- An organic light emitting diode was manufactured according to the same method as Example 8 except for using Synthesis Example 29 instead of Synthesis Example 1.
- Example 14 An organic light emitting diode was manufactured according to the same method as Example 8 except for using Synthesis Example 34 instead of Synthesis Example 1.
- Example 5 instead of HT-1, ⁇ , ⁇ '-di (1-naphthyl) - ⁇ , ⁇ '-diphenylbenzidine
- An organic light emitting diode was manufactured according to the same method except that [ ⁇ ] was used and ⁇ , ⁇ '-di (1—naphthyl) - ⁇ , ⁇ '-diphenylbenzidine [ ⁇ ] was used instead of Synthesis Example 1. It was.
- Example 5 an organic light emitting diode was manufactured according to the same method except that HT-1 was used instead of Synthesis Example 1.
- DNTPD, NPB, HT-l, TCTA, CBP, BAlq used in the organic light emitting device fabrication
- Alq3, Ir (ppy) 3 and Ir (pq) 2acac are as follows.
- the current value flowing through the unit device was measured using a current-voltmeter (Keithley 2400), and the measured current value was divided by the area. Got it.
- the resulting organic light emitting device was measured by using a luminance meter (Minolta Cs-IOOOA) while increasing the voltage from 0 V to 10 V to obtain a result.
- a luminance meter Minolta Cs-IOOOA
- Luminous efficiency (cd / A) at the same luminance (cd / m 2 ) was calculated using the luminance, current density, and voltage measured from (1) and (2).
- the organic light emitting device emits light with an initial luminance of 3,000 nits, Decrease When the brightness was reduced to 1/2 compared to the initial luminance, the half-life was measured.
- the initial luminance was emitted at l, 000 nits. Decreases the luminance by 80% compared to the initial luminance.
- the embodiment of the present invention compared to Comparative Example 3 can be seen that the luminous efficiency is significantly increased up to at least 40% or more, at least 10%, Example of the present invention compared to Comparative Example 2 using a conventionally known TCTA as an auxiliary hole transport layer
- the result of the above embodiments is sufficient to commercialize and commercialize the device considering that the lifetime of the light emitting device rises from at least 20% to at least 50% so that the lifetime of the device is one of the biggest problems of commercialization. It seems to be.
- the embodiment of the present invention compared to Comparative Example 4 greatly increased the luminous efficiency at least 10% to at least 30%
- Example of the present invention compared to Comparative Example 5 using the conventionally known TCTA as an auxiliary hole transport layer It can be seen that the luminous efficiency rises from at least 5% to at least 20%, the lifespan of the light emitting device is increased from at least 20% to at least 40%, and the driving voltage is reduced to greatly improve the overall main characteristics of the red phosphorescent device.
- the lifetime of the device is one of the biggest problems of the commercialization in terms of commercialization of the actual device, the results of the embodiments are considered to be sufficient to commercialize the device.
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Abstract
Description
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EP13831153.5A EP2889356A4 (en) | 2012-08-21 | 2013-08-13 | ORGANIC PHOTOELECTRIC ELEMENT AND DISPLAY DEVICE THEREFOR |
CN201380044502.8A CN104583364A (zh) | 2012-08-21 | 2013-08-13 | 有机光电子元件和包含其的显示设备 |
JP2015528392A JP2015532783A (ja) | 2012-08-21 | 2013-08-13 | 有機光電子素子およびこれを含む表示装置 |
US14/420,932 US20150221874A1 (en) | 2012-08-21 | 2013-08-13 | Organic optoelectronic element and display device comprising same |
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Also Published As
Publication number | Publication date |
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US20150221874A1 (en) | 2015-08-06 |
JP2015532783A (ja) | 2015-11-12 |
KR101497138B1 (ko) | 2015-02-27 |
KR20140025119A (ko) | 2014-03-04 |
CN104583364A (zh) | 2015-04-29 |
EP2889356A4 (en) | 2016-04-20 |
EP2889356A2 (en) | 2015-07-01 |
WO2014030872A3 (ko) | 2014-05-08 |
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