WO2010136111A1 - Zusammensetzung, enthaltend mindestens eine emitterverbindung und mindestens ein polymer mit konjugationsunterbrechenden einheiten - Google Patents
Zusammensetzung, enthaltend mindestens eine emitterverbindung und mindestens ein polymer mit konjugationsunterbrechenden einheiten Download PDFInfo
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- WO2010136111A1 WO2010136111A1 PCT/EP2010/002694 EP2010002694W WO2010136111A1 WO 2010136111 A1 WO2010136111 A1 WO 2010136111A1 EP 2010002694 W EP2010002694 W EP 2010002694W WO 2010136111 A1 WO2010136111 A1 WO 2010136111A1
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- JKFAIQOWCVVSKC-UHFFFAOYSA-N furazan Chemical compound C=1C=NON=1 JKFAIQOWCVVSKC-UHFFFAOYSA-N 0.000 description 1
- 238000005227 gel permeation chromatography Methods 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- IKDUDTNKRLTJSI-UHFFFAOYSA-N hydrazine monohydrate Substances O.NN IKDUDTNKRLTJSI-UHFFFAOYSA-N 0.000 description 1
- 229920006150 hyperbranched polyester Polymers 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- HOBCFUWDNJPFHB-UHFFFAOYSA-N indolizine Chemical compound C1=CC=CN2C=CC=C21 HOBCFUWDNJPFHB-UHFFFAOYSA-N 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000007641 inkjet printing Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- ZLTPDFXIESTBQG-UHFFFAOYSA-N isothiazole Chemical compound C=1C=NSC=1 ZLTPDFXIESTBQG-UHFFFAOYSA-N 0.000 description 1
- CTAPFRYPJLPFDF-UHFFFAOYSA-N isoxazole Chemical compound C=1C=NOC=1 CTAPFRYPJLPFDF-UHFFFAOYSA-N 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000012669 liquid formulation Substances 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 229910003455 mixed metal oxide Inorganic materials 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000013110 organic ligand Substances 0.000 description 1
- 238000013086 organic photovoltaic Methods 0.000 description 1
- AHHWIHXENZJRFG-UHFFFAOYSA-N oxetane Chemical compound C1COC1 AHHWIHXENZJRFG-UHFFFAOYSA-N 0.000 description 1
- AUONHKJOIZSQGR-UHFFFAOYSA-N oxophosphane Chemical compound P=O AUONHKJOIZSQGR-UHFFFAOYSA-N 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 150000002979 perylenes Chemical class 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 150000002988 phenazines Chemical class 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000009832 plasma treatment Methods 0.000 description 1
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 125000003367 polycyclic group Chemical group 0.000 description 1
- 229920000123 polythiophene Polymers 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- CPNGPNLZQNNVQM-UHFFFAOYSA-N pteridine Chemical compound N1=CN=CC2=NC=CN=C21 CPNGPNLZQNNVQM-UHFFFAOYSA-N 0.000 description 1
- GDISDVBCNPLSDU-UHFFFAOYSA-N pyrido[2,3-g]quinoline Chemical compound C1=CC=NC2=CC3=CC=CN=C3C=C21 GDISDVBCNPLSDU-UHFFFAOYSA-N 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- JWVCLYRUEFBMGU-UHFFFAOYSA-N quinazoline Chemical compound N1=CN=CC2=CC=CC=C21 JWVCLYRUEFBMGU-UHFFFAOYSA-N 0.000 description 1
- 239000012429 reaction media Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 229920013730 reactive polymer Polymers 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 125000003808 silyl group Chemical group [H][Si]([H])([H])[*] 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 150000001911 terphenyls Chemical class 0.000 description 1
- IFLREYGFSNHWGE-UHFFFAOYSA-N tetracene Chemical compound C1=CC=CC2=CC3=CC4=CC=CC=C4C=C3C=C21 IFLREYGFSNHWGE-UHFFFAOYSA-N 0.000 description 1
- 150000003536 tetrazoles Chemical class 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 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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- H—ELECTRICITY
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/10—Organic polymers or oligomers
- H10K85/141—Organic polymers or oligomers comprising aliphatic or olefinic chains, e.g. poly N-vinylcarbazol, PVC or PTFE
- H10K85/146—Organic polymers or oligomers comprising aliphatic or olefinic chains, e.g. poly N-vinylcarbazol, PVC or PTFE poly N-vinylcarbazol; Derivatives thereof
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/10—Organic polymers or oligomers
- H10K85/141—Organic polymers or oligomers comprising aliphatic or olefinic chains, e.g. poly N-vinylcarbazol, PVC or PTFE
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G61/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G61/02—Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/10—Organic polymers or oligomers
- H10K85/151—Copolymers
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/30—Coordination compounds
- H10K85/341—Transition metal complexes, e.g. Ru(II)polypyridine complexes
- H10K85/342—Transition metal complexes, e.g. Ru(II)polypyridine complexes comprising iridium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2261/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G2261/10—Definition of the polymer structure
- C08G2261/19—Definition of the polymer structure partially conjugated
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2261/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G2261/30—Monomer units or repeat units incorporating structural elements in the main chain
- C08G2261/31—Monomer units or repeat units incorporating structural elements in the main chain incorporating aromatic structural elements in the main chain
- C08G2261/314—Condensed aromatic systems, e.g. perylene, anthracene or pyrene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2261/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G2261/30—Monomer units or repeat units incorporating structural elements in the main chain
- C08G2261/31—Monomer units or repeat units incorporating structural elements in the main chain incorporating aromatic structural elements in the main chain
- C08G2261/314—Condensed aromatic systems, e.g. perylene, anthracene or pyrene
- C08G2261/3142—Condensed aromatic systems, e.g. perylene, anthracene or pyrene fluorene-based, e.g. fluorene, indenofluorene, or spirobifluorene
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- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/06—Luminescent, e.g. electroluminescent, chemiluminescent materials containing organic luminescent materials
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- C—CHEMISTRY; METALLURGY
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- C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
- C09K2211/14—Macromolecular compounds
- C09K2211/1408—Carbocyclic compounds
- C09K2211/1416—Condensed systems
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- H—ELECTRICITY
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K2101/00—Properties of the organic materials covered by group H10K85/00
- H10K2101/10—Triplet emission
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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
- a composition comprising at least one emitter compound and at least one polymer having conjugation-interrupting units
- the present invention relates to a composition comprising at least one emitter compound and at least one polymer having conjugation-interrupting units, the use of this composition in an optoelectronic device and an optoelectronic device containing this composition according to the invention.
- Matrix materials and charge transport materials further improvements are needed.
- the matrix materials must be matched to the emitter connections used, since otherwise unwanted quenching effects can occur.
- Conjugated polymers have long been studied intensively as promising materials in OLEDs. Their simple production promises a cost-effective production of corresponding electroluminescent devices.
- previously used and known conjugated polymers have the disadvantage that the achievable efficiency has a certain upper limit. This is mainly due to the HOMO LUMO distances as well as at the singlet and triplet energy levels of the polymer and the emitter compound. For example, if the triplet level of the polymer is lower than that of the emitter, the triplet energy of the emitter can be transferred to the polymer by an energy transfer mechanism. The phosphorescence is thus quenched.
- PVK polyvinylcarbazole
- US 7250226 B2 discloses a triplet emitter polymer having hole transport, electron transport and emitter units in the side chain of the polymer.
- Wai-Yeung Wong et al., Macromolecules 2004, 37, 4496-4504 proposes to use polymers with fluorene units as conjugation breakers, the triplet emitter unit being incorporated into the polymer chain.
- JP 2001/257076 discloses an OLED comprising a non-conjugated polymer as host and a metal complex with Group VIII metals as dopant.
- a non-conjugated polymer matrix polyvinylcarbazole is disclosed.
- the object of the present invention was therefore in the
- polymeric matrix materials which have conjugation-interrupting units, in conjunction with Emitter compounds that are not bound to the polymer have increased efficiency and lifetime.
- Such a system is also easy to prepare and can be processed by coating from solution.
- These matrix materials can be used for singlet emitters as well as triplet emitters.
- the present invention thus relates to a composition comprising at least one emitter compound and at least one polymer, which is characterized in that the polymer contains at least one structural unit of the general formula I,
- A is independently a conjugation-interrupting unit at each occurrence
- FG is independently an optoelectronic functional group at each occurrence
- n is greater than 1, preferably ⁇ 10, and more preferably in the range of 10 to 10,000.
- Another object of the present invention is a polymer which is characterized in that it contains at least one structural unit of the general formula I,
- A is independently of each other a conjugation interrupting unit
- FG is independently of each other an optoelectronic functional group at each occurrence
- n is greater than 1, preferably ⁇ 10, and more preferably in the range of 10 to 10,000.
- the polymer contains at least one further structural unit of the formula Ia
- a 1 is independently a conjugation-interrupting unit at each occurrence
- FG 1 is independently an optoelectronic functional group at each occurrence
- m, o are each independently 0, 1 or 2
- polymer is to be understood as meaning both polymeric compounds, oligomeric compounds and dendrimers
- the polymeric compounds according to the invention preferably have 10 to 10,000, particularly preferably 20 to 5,000 and in particular 50 to 2,000 repeating units (structural units)
- the branching factor of the polymers in this case is between 0 (linear polymer, without branching sites) and 1 (fully branched dendrimer).
- Dendrimer is to be understood here in general terms as, for example, of M. Fischer and F. Vögtle (Angew Chem, Int Ed., 1999, 38, 885).
- the number average molecular weight M n of the polymer is preferably in the
- the determination of M n is carried out by gel permeation chromatography with polystyrene as internal standard.
- each of FG and FG 1 is independently of one another preferably a substituted or unsubstituted, aromatic or heteroaromatic ring system or an aromatic or heteroaromatic group, provided that this ring system or the aromatic or heteroaromatic group has optoelectronic functional properties.
- An aromatic group (aryl group) in the sense of the present invention contains 5 to 60 C atoms;
- a heteroaromatic group (heteroaryl group) contains 2 to 60 C atoms and at least one heteroatom, with the proviso that the sum of C atoms and heteroatoms gives at least 5.
- the heteroatoms are preferably selected from Si, N, P, O, Se and / or S, more preferably selected from N, O and / or S.
- aryl group or heteroaryl group either a simple aromatic cycle, ie benzene, or a simple heteroaromatic cycle, for example pyridine, pyrimidine, thiophene, etc., or a fused aryl or Heteroaryl group, for example, naphthalene, anthracene, phenanthrene, quinoline, isoquinoline, benzothiophene, benzofuran and indole, etc. understood. Among these, naphthalene and quinoline are particularly preferred.
- the emitter compound when the emitter compound is a triplet emitter or a metal complex, in the formulas I or Ia, the FG and / or FG 1 functional group is more preferably selected from a monocyclic or bicyclic fused aromatic or heteroaromatic group, and m in formula Ia is preferably 0 or 1.
- the heteroaromatic ring system in the sense of the present invention contains 2 to 60 C atoms and at least one heteroatom in the ring system, with the proviso that the sum of C atoms and heteroatoms gives at least 5.
- Heteroatoms are preferably selected from Si, N, P, O, Se and / or S, more preferably selected from N, O and / or S.
- an aromatic or heteroaromatic ring system is furthermore to be understood as meaning a system which does not necessarily contain only aryl or heteroaryl groups, but in which several aryl or heteroaryl groups are also protected by a non-aromatic unit (preferably less than 10%).
- the non-H atoms such.
- N or O atom may be interrupted.
- systems such as 9,9'-spirobifluorene, 9,9-diarylfluorene, triarylamine, diaryl ethers, stilbene, etc. are to be understood as aromatic ring systems in the context of the present invention, and also systems in which two or more aryl groups, for example by a linear or cyclic alkyl group or interrupted by a silyl group.
- aromatic or heteroaromatic ring system having 5 to 60 aromatic ring atoms, which may be substituted in each case with any radicals R, wherein R is selected from the group consisting of H, a Ci ⁇ o-alkyl group, a C 2-40 alkenyl group, a C 2-4 o-alkynyl group, an optionally substituted C 6-4 o-aryl group and an optionally Substituted 5- to 25-membered heteroaryl group, and which may be linked via any position on the aromatic or heteroaromatic, are understood in particular groups derived from benzene, naphthalene, anthracene, ketone, diaryl ketone, amine, triarylamine, phenanthrene, pyrene , Chrysene, perylene, fluoranthene, naphthacene, pentacene, benzpyrene, biphenyl, biphenylene, terphenyl, terphenyls, fluor
- FG and FG 1 are each independently selected from phenyl, naphthyl, pyridine, anthracene, binaphthylanthracene, phenanthrene, dihydrophenanthrene, indenofluorene, fluorene, spirobifluorene, pyrene, phosphine, phosphine oxide, furan, imidazole, thiophene, triazine, pyrazine, ketone, Amine, carbazole and combinations of said and their
- a combination is to be understood as meaning a compound which is composed of two or more of the said basic body.
- a carbazole may be covalently linked to a fluorene moiety.
- the above-mentioned groups can perform various functions within an optoelectronic device. Therefore, it makes sense to classify the functional groups FG and FG 1 in terms of their preferred functional properties.
- the optoelectronic functional group FG and FG 1 are each independently of each other preferably a hole injection group, a hole transport group, a hole blocking group, an electron injection group, an electron transport group, an electron blocking group, a photon absorption group, an exciton generating group, a singlet exciton sensitizer, an emitter group or a backbone Group.
- two or more functional groups may be present side by side in the polymer or a functional group may have two or more functions, for example a hole transport and electron transport function.
- a hole injection group and / or hole transport group in the context of the present invention is a group with energetically high HOMO ("highest occupied molecular orbital, highest occupied molecular orbital”), preferably> -5.8 eV, particularly preferably> -5.5 eV (against vacuum level
- the effect on the hole transport depends on the concentration of the group within the polymer At concentrations of ⁇ 4 mol% relative to the polymer, there is usually too little concentration for effective hole transport
- the concentration of the hole injection and / or hole transport group should therefore preferably be> 4 mol%, particularly preferably> 6 mol%, based on the polymer.
- the concentration in the polymer should preferably be> 10 mol%, especially In the case of a simultaneously low LUMO, such a group may be an Ele have kronone blocking function.
- the hole injection and / or hole transport group is preferably a triarylamine, benzidine, tetraaryl-para-phenylenediamine, triarylphosphine, phenothiazine, phenoxazine, dihydrophenazine, thianthrene, dibenzo-para-dioxin, phenoxathiin, carbazole , Azulenes, thiophene, pyrrole and
- HOMO highest occupied molecular orbital
- these arylamines and heterocycles lead to a HOMO in the polymer of greater than -5.8 eV (at vacuum level), more preferably greater than -5.5 eV.
- An electron injection and / or electron transport group in the context of the present invention is a group with low-lying LUMO ("lowest unoccupied molecular orbital, lowest unoccupied molecular orbital”), preferably ⁇ -1.9 eV, particularly preferably ⁇ -2.5 eV (against The influence on the electron transport depends on the concentration of the group within the polymer.At concentrations of ⁇ 4 mol% relative to the polymer, the concentration is too low for effective electron transport The concentration of the electron injection and / or electron transport group should therefore preferably be> 4 mol%, particularly preferably> 6 mol%, based on the polymer. For effective electron transport, the concentration in the polymer should preferably be> 10 mol%, especially Preferably,> 15 mol%. In a low-lying HOMO, ei ne such group have a hole-blocking function.
- these units in the polymer result in a LUMO of less than -1.9 eV (vs. vacuum level), more preferably less than -2.5 eV.
- a photon absorption group in the sense of the present invention is preferably a group capable of absorbing a photon of any energy or wavelength, preferably in the spectral range of visible light.
- these are dyes. Suitable dyes are, for example, those which are usually also used in organic photovoltaic cells, in dye-sensitized solar cells, in charge generation layers or in xerographic devices.
- Preferred dyes are, for example, perylenes and their derivatives (Angew Chem et al., Ed., 2006, 45, 3364-3368), ruthenium dyes and their derivatives (Nature, 1991, 353, p 737 and Angew. Chemie, Int. Ed 2005, 44, 5740-5744),
- Phthalocyanines Phthalocyanines, azo dyes, rylenes, perylenediimides, perylenebis-dicarboximides, terrylenes, quaterrylenes, phorphyrins, squarines and derivatives thereof.
- An exciton-generating group in the context of the present invention is preferably to be understood as meaning a group which is capable of producing an exciton by recombination of a hole and an electron.
- An emitter group is a group capable of emitting light, for example, a fluorescent or phosphorescent dye. Fluorescent dyes are predominantly singlet emitters.
- a triplet emitter group in the sense of the present invention is preferably a group which can emit light from the triplet state even at room temperature with high efficiency, ie exhibits electrophosphorescence instead of electrofluorescence, which frequently causes an increase in energy efficiency. For this purpose are suitable first
- functional groups FG or FG 1 may be included in the polymer of the present invention which improve the singlet to triplet state transition and which, in support of the emitter groups, improve the phosphorescence properties of these structural elements.
- carbazole and bridged carbazole dimer units are suitable for this purpose, as described, for example, in WO
- ketones phosphine oxides, sulfoxides, sulfones, silane derivatives and similar compounds, as described, for example, in US Pat. in WO 2005/040302 A1.
- Suitable other emitter groups for the purposes of the present invention are aromatic structures having 6 to 40 carbon atoms or else toluenes, stilbene or bisstyrylarylene derivatives which may each be substituted by one or more radicals R, where R is selected from the group consisting of H , a C 1-4 -alkyl group, a C 2-4 o alkenyl group, a C 2 - 4 is o-aryl group and an optionally substituted 5- to 25-membered heteroaryl - 4 o-alkynyl group, an optionally substituted C 6 , Particularly preferred is the incorporation of 1, 4-phenylene, 1, 4-naphthylene, 1, 4 or 9,10-anthrylene, 1, 6, 2,7- or 4,9-pyrenylene, 3,9- or 3,10-perylenylene, 4,4'-biphenylylene, 4,4 "-terphenyl, 4,4'-bis-1, 1'-naphthylylene, 4,4'-
- Functional groups FG and FG 1 in the context of the present invention are preferably aromatic structures having 6 to 40 carbon atoms. These are, for example, 4,5-dihydropyrene derivatives, 4,5,9,10-tetrahydropyrene derivatives, fluorene derivatives, 9,9'-spirobifluorene derivatives, phenanthrene derivatives, 9,10-dihydrophenanthrene derivatives, 5,7-dihydrodibenzooxepine derivatives and cis- and trans-indenofluorene derivatives , In the structural units of the general formula I and Ia, A or A 1 is, independently of one another, a so-called conjugation-interrupting unit.
- a unit which disturbs or preferably interrupts the conjugation for example a unit in which the conjugation is disturbed by at least one sp 3 -hybridized atom, preferably carbon.
- the conjugation may be disturbed by a non sp 3 -hybridized atom, for example by N, P or Si.
- a and A 1 are each independently selected from the group consisting of linear or branched alkylene, cycloalkylene, alkylsilylene, silylene, arylsilylene, alkylalkoxyalkylene, arylalkoxyalkylene, alkylthioalkylene, sulfone, alkylene sulfone, sulfone oxide, alkylene sulfone oxide wherein the alkylene groups are each independently 1 to Has 12 carbon atoms and wherein one or more H atoms may be replaced by F, Cl, Br 1 I, alkyl, heteroalkyl, cycloalkyl, aryl or heteroaryl.
- a and A 1 is a linear or branched alkylene or alkoxyalkylene having 1 to 12 C atoms, wherein one or more H atoms may be replaced by F.
- a 1 or A 1 more preferably corresponds to the general formulas A-Ia, A-Ib, A-Ic, A-Id, A-Ie, A-If, A-Ig, A-Ih, A-Ii, A-Ij, A-Ik, A-Im, A-In 1 A-Io and A-Ip 1
- An, Ar 2 and Ar 3 each independently represent an aromatic or heteroaromatic group having 5 to 60 ring atoms, two of Radicals R 1 to R 4 or one of the radicals R 1 to R 4 and one of the groups A ⁇ , Ar 2 and Ar 3 form a bond to FG of the general formula I or FG 1 of the general formula Ia and a further structural unit corresponding to the structural unit of the formula I may be the same or different and / or R1, R2, R3, and R4 are each independently alkylene, cycloalkylene, alkylsilylene, silylene, arylsilylene, alkylalkoxyalkylene, arylalkoxyalkylene, alkylthioalkylene, phosphine, phosphine oxide, sulfone, alkylene sulfone, sulfone oxide, alkylene sulfone oxide; Alkylene group each independently of one another has 1 to 12 carbon atoms and wherein one or more H atoms may
- the substituents R1 to R4 may either be adjacent to the respective An, Ar 2 or Ar 3, or one or more ring atoms may be therebetween.
- the atoms to which the substituents R1 to R4 are bonded are ring atoms of the aromatic or heteroaromatic group.
- the polymer contains other structural units other than formula I and / or Ia. These may be located either in the backbone or in a side chain of the polymer.
- the further structural units can come, for example, from the following classes:
- Group 1 units containing the hole injection and / or
- Group 2 units containing the electron injection and / or
- Group 3 units comprising combinations of Group 1 and Group 2 individual units
- Group 4 units which change the emission characteristics to the extent that electrophosphorescence can be obtained instead of electrofluorescence;
- Group 5 units that improve the transition from the so-called singlet to triplet state
- Group 6 units which influence the emission color of the resulting polymers
- Group 7 units typically used as backbone
- Group 8 units which influence the film morphological and / or the rheological properties of the resulting polymers.
- Preferred polymers are those in which at least one structural unit has charge transport properties, ie contain the units from group 1 and / or 2.
- these arylamines and heterocycles lead to a HOMO in the polymer of greater than -5.8 eV (at vacuum level), more preferably greater than -5.5 eV.
- these units in the polymer result in a LUMO of less than -1.9 eV (vs. vacuum level), more preferably less than -2.5 eV.
- polymers units from group 3 in which structures which increase hole mobility and which electron mobility (that is, units of groups 1 and 2) are directly bonded together or contain structures that are both increase hole mobility as well as electron mobility.
- Units can serve as emitters and shift the emission color to green, yellow or red. Their use is thus suitable, for example, for the production of other emission colors from originally blue-emitting polymers.
- Structural units from group 4 are those which can emit light from the triplet state at room temperature with high efficiency, ie exhibit electrophosphorescence instead of electrofluorescence, which frequently results in an increase in energy efficiency.
- Compounds which contain heavy atoms with an atomic number of more than 36 are suitable for this purpose.
- Suitable structural units for the polymers of the invention are, for example, various complexes, as described, for example, in WO 02/068435 A1, WO 02/081488 A1, EP 1239526 A2 and WO 2004/026886 A2. Corresponding monomers are described in WO 02/068435 A1 and in WO 2005/042548 A1.
- Group 5 structural units are those which improve the singlet to triplet state transition and which, assisting with the Group 4 structural elements, improve the phosphorescence properties of these structural elements.
- Carbazole and bridged carbazole dimer units are particularly suitable for this purpose, as are described, for example, in US Pat. in WO 2004/070772 A2 and WO 2004/113468 A1. Furthermore come for this ketones, phosphine oxides,
- Structural units of group 6 are, in addition to those mentioned above, those which are at least one more aromatic or another conjugated
- Aromatic structures having from 6 to 40 carbon atoms or else toluenes, stilbene or bisstyrylarylene derivatives which may each be substituted by one or more radicals R are preferred.
- Particularly preferred is the incorporation of 1, 4-phenylene, 1,4-naphthylene, 1, 4 or 9,10-anthrylene, 1, 6, 2,7 or 4,9-pyrenylene, 3,9- or 3,10-perylenylene, 4,4'-biphenylylene, 4,4 "- terphenylylene, 4,4'-bi-1, 1 l -naphthylylene, 4,4'-tolanylene , 4,4'-stilbenylene, 4,4 "-bityrylarylene, benzothiadiazole and corresponding oxygen derivatives, quinoxaline, phenothiazine, phenoxazine, dihydrophenazine, bis (thiophenyl) arylene, oligo (thiophenylene), phenazine , Rubrene, pentacene or perylene derivatives, which are preferably substituted are, or preferably conjugated push-pull systems (systems substituted with donor and acceptor substituents
- Group 7 structural units are units containing aromatic structures having from 6 to 40 carbon atoms, which are typically used as a backbone polymer. These are, for example, 4,5-dihydropyrene derivatives, 4,5,9,10-tetrahydropyrene derivatives, fluorene derivatives, 9,9'-spirobifluorene derivatives, phenanthrene derivatives, 9,10-dihydrophenanthrene derivatives, 5,7-dihydrodibenzooxepine derivatives and cis- and trans-indenofluorene derivatives ,
- Group 8 structural units are those which influence the film morphological properties and / or the rheological properties of the polymers, e.g. Siloxanes, long alkyl chains or fluorinated groups, but also particularly rigid or flexible units, such as e.g. liquid crystal forming units or crosslinkable groups.
- polymers which, in addition to the structural units of the formula I, additionally contain one or more units selected from groups 1 to 8, which are different from the structural units (repeat units) of the formula I according to the invention. It may also be preferred if more than one repeating unit from a group is present at the same time.
- polymers which, in addition to at least one structural unit of the formula I, also contain units from group 7, particularly preferably at least 50 mol% of these units, based on the total number of structural units in the polymer.
- the polymers contain units which improve the charge transport and / or the charge injection, that is to say units from group 1 and / or 2; particularly preferred is a proportion of 0.5 to 30 mol% of these units; Particularly preferred is a proportion of 1 to 10 mol% of these units. It is furthermore particularly preferred if the polymers contain structural units from group 7 and units from group 1 and / or 2, in particular at least 50 mol% units from group 7 and 0.5 to 30 mol% units from group 1 and / or 2.
- the polymers according to the invention are generally prepared by polymerization of one or more types of monomer, of which at least one type of monomer in the polymer leads to structural units of the formula I.
- Suitable polymerization reactions are known in the art and described in the literature.
- Particularly suitable and preferred polymerization reactions which lead to C-C or C-N linkages are the following:
- the methods for the C-C linkages are preferably selected from the group comprising SUZUKI coupling, YAMAMOTO coupling and STILLE coupling; the method for a CN linkage is preferably a clutch according to HARTWIG-BUCHWALD.
- the present invention thus also provides a process for the preparation of the polymers according to the invention, which is characterized in that they are prepared by polymerization according to SUZUKI, polymerization according to YAMAMOTO, polymerization according to SILENCE or polymerization according to HARTWIG-BUCHWALD.
- the dendrimers according to the invention can be prepared according to methods known to the person skilled in the art or in analogy thereto. Suitable methods are described in the literature, e.g. in Frechet, Jean M. J .; Hawker, Craig J., "Hyperbranched polyphenylenes and hyperbranched polyesters: new soluble, three-dimensional, reactive polymers", Reactive & Functional Polymers (1995), 26 (1-3), 127-36; Janssen, H.M .; Meijer, E.W., "The synthesis and characterization of dendritic molecules", Materials Science and Technology (1999), 20 (Synthesis of Polymers), 403-458; Tomalia, Donald A., "Dendrimer molecules", Scientific American (1995), 272 (5), 62-6, WO 02/067343 A1 and WO 2005/026144 A1.
- polymers of the invention may also be preferred not to use the polymers of the invention as a pure substance, but as a mixture (blend) together with further any polymeric, oligomeric, dendritic or low molecular weight substances. These can, for example, improve the electronic properties or emit themselves or also act as matrix material.
- mixture or “blend” above and below denotes a mixture containing at least one polymeric component
- Preferred matrix materials for the blend are, in addition to the polymer according to the invention, for example CBP (N, N-biscarbazolylbiphenyl), carbazole derivatives (for example according to WO 05/039246, US 2005/0069729, JP 2004/288381, EP 1205527 or DE 102007002714), azacarbazoles (for example according to EP 1617710, EP 1617711, EP 1731584, JP 2005/347160), ketones (for example according to US Pat WO 04/093207), phosphine oxides, sulfoxides and sulfones (for example according to WO 05/003253), oligophenylenes, aromatic amines (for example according to US 2005/0069729), bipolar matrix materials (for example according to WO 07/137725), silanes (for example according to WO 05/11),
- the present invention furthermore relates to solutions and
- Formulations of one or more compositions according to the invention in one or more solvents are known to the person skilled in the art and described, for example, in WO 02/072714 A1, WO 03/019694 A2 and the literature cited therein.
- Suitable and preferred solvents for formulations are, for example, toluene, anisole, xylene, methyl benzoate, dimethylanisole, mesitylene, tetralin, veratrole and tetrahydrofuran, and mixtures thereof.
- These solutions can be used to prepare thin polymer layers, for example, by area coating methods (e.g., spin coating) or by printing methods (e.g., inkjet printing).
- area coating methods e.g., spin coating
- printing methods e.g., inkjet printing
- compositions according to the invention comprising polymers having structural units of the formula I which additionally contain one or more polymerisable and thus crosslinkable groups are particularly suitable for the production of films or coatings, in particular for the production of structured coatings, for example by thermal or light-induced in-situ Polymerization and in-situ crosslinking, such as in situ UV photopolymerization or photopatterning.
- Particularly preferred for such applications are polymers according to the invention having one or more polymerisable groups selected from acrylate, methacrylate, vinyl, epoxy and oxetane. In this case, both corresponding polymers can be used in pure substance, but it can also be used formulations or blends of these polymers as described above.
- binders are, for example, polystyrene, polycarbonate, polyacrylate, Polyvinyl butyral and similar, optoelectronically neutral polymers.
- the polymer containing structural units of the formula I or the abovementioned preferred embodiments is used as the matrix material for an emitting compound in an emitting layer, it is preferably used in combination with one or more fluorescent dyes
- phosphorescence is understood as meaning the luminescence from an excited state with a higher spin multiplicity, ie a spin state> 1, in particular from an excited triplet state or from an MLCT mixed state.
- the mixture of the polymer according to the invention or the above-mentioned preferred embodiment and the emitting compound then contains between 99 and 1% by weight, preferably between 98 and 60% by weight, particularly preferably between 97 and 70
- the mixture contains up to 99 wt .-%, preferably up to 40 wt .-%, more preferably up to 30 wt .-% and in particular to 25 wt .-% of the emitter based on the total mixture of emitter and matrix material.
- the mixture contains at least 1 wt .-%, preferably 2 wt .-%, more preferably at least 3 wt .-% and in particular at least 5 wt .-% of the emitter based on the total mixture of emitter and matrix material.
- the proportion of the emitting compound may also be significantly lower.
- the mixture preferably contains at least 0.01 wt .-% of the emitter based on the total mixture, but preferably less than 5 wt .-%, more preferably less than 3 wt .-% and in particular less than 1, 5 wt. -% of the emitter relative to the total mixture.
- compounds which emit light preferably in the visible range, with suitable excitation and also contain at least one atom of atomic number greater than 36 and less than 84, particularly preferably greater than 56 and less than 80, are suitable as phosphorescent compounds.
- Examples of the emitters described above can be found in WO 00/70655, WO 01/41512, WO 02/02714, WO 02/15645, EP 1191613, EP 1191612, EP 1191614, WO 05/033244 or DE 102008015526 be removed.
- all phosphorescent complexes used in the prior art for phosphorescent OLEDs and as known to those skilled in the art of organic electroluminescence are suitable, and those skilled in the art may use other phosphorescent complexes without inventive step.
- the emitter compound in the composition according to the invention is preferably a triplet emitter, a singlet emitter or a singlet exciton-generating group.
- the triplet emitter is preferably a green emitting triplet emitter.
- the triplet emitter may be a blue or red triplet emitter.
- the triplet emitter preferably comprises an organometallic compound unit.
- the organometallic compound unit is preferably an organometallic coordination compound.
- an organometallic coordination compound is meant a compound having a metal atom or ion in the center of the compound surrounded by an organic compound as a ligand.
- An organometallic coordination compound is further characterized in that one carbon atom of the ligand binds to the central metal via a coordination bond.
- the triplet emitters contain only chelating ligands, ie ligands which coordinate to the metal via at least two binding sites; particularly preferred is the use of two or three bidentate ligands, which may be the same or different.
- chelating ligands can be explained by the higher stability of chelate complexes.
- the triplet emitter preferably has a structure according to formula VII:
- M is the same or different at each occurrence
- DCy is the same or different at each instance and is a cyclic group which contains at least one donor atom, ie an atom with a lone pair of electrons, preferably nitrogen or phosphorus, via which the cyclic group is bonded to the metal, and the one or more substituents R 4 can wear; the groups DCy and CCy are connected to one another via a covalent bond and can have further linkages with one another via the radicals R 4 or R 5 ;
- CCy is the same or different at each occurrence and is a cyclic group containing a carbon atom through which the cyclic group is bonded to ddaassa MMeettaallII and which can carry one or more substituents R 4 ;
- L is identical or different at each occurrence, a bidentate chelating ligand, preferably a monoanionic, bidentate chelating ligand;
- R 5 is identical or different at each occurrence H, an aliphatic hydrocarbon radical having 1 to 20 C-atoms or aromatic hydrocarbon radical having 6 to 20 C-atoms;
- n is at each occurrence 1, 2 or 3, preferably 2 or 3, more preferably 3;
- n is 0, 1 or 2, preferably 0 or 1, particularly preferably 0.
- the units according to formula VII can be symmetrical or asymmetrical.
- units of formula VII are symmetrical. This preference is due to the easier synthetic accessibility of the compounds.
- units according to formula VII may preferably be homoleptic metal complexes, ie metal complexes which have only one type of ligand.
- the units of formula VII are constructed asymmetrically. This can offer advantages in emission characteristics when the emission comes from only one of the ligands.
- units according to formula VII may preferably be heteroleptic complexes, ie metal complexes which have more than one different ligand.
- Preferred metals M are selected from the group of
- Transition metals with an atomic number>36; particularly preferred metals M are selected from the group of transition metals with an atomic number> 50.
- the emitter compound is a metal complex comprising a metal selected from the group consisting of the transition metals, the rare earths, the lanthanides and the actinides, preferably Ir, Ru, Os, Eu, Au 1 Pt, Cu, Zn 1 Mo, W 1 Rh, Pd and Ag, more preferably Ir.
- organic ligand is a chelate ligand.
- a chelate ligand is understood to mean a bidentate or polydentate one
- Ligand which can bind to two or more atoms corresponding to the central metal.
- a mixture contains a polymer according to the invention, a triplet emitter which is either present in the polymer according to the invention or, as in the abovementioned embodiments, mixed as a low molecular weight substance and further low molecular weight substances.
- These low molecular weight substances can have the same functionalities as have been mentioned for possible monomer building blocks in groups 1 to 8.
- the weight ratio of polymer to emitter compound should preferably be a) 99.1: 0.01 to 98: 2, more preferably b) 60: 40 to 95: 5, and especially c) 80: 20.
- the range a) is preferred.
- the regions b) and c) are preferred.
- the composition according to the invention comprises one or more solvents.
- This is a liquid formulation that is suitable for Coating a carrier or an already deposited layer of an optoelectronic device is suitable. Such a formulation is also an object of the present invention.
- Suitable and preferred solvents for the formulations according to the invention are, for example, toluene, anisole, xylene, methyl benzoate, dimethylanisole, mesitylene, tetralin, veratrole and tetrahydrofuran and also mixtures thereof.
- composition according to the invention is suitable for use in an optoelectronic device.
- the composition is preferably present as a layer in the optoelectronic device. How such layers can be produced, for example by spin coating, is known to the person skilled in the art.
- Another object of the present invention is an optoelectronic device comprising preferably a cathode, an anode and at least one composition as defined above.
- the composition according to the invention is preferably in the form of a layer and is arranged between the cathode and the anode.
- further layers may be present in the optoelectronic device.
- interlayer may be introduced between two emitting layers, which have, for example, an exciton-blocking function. It should be noted, however, that not necessarily each of these layers must be present.
- the organic electroluminescent device can contain an emitting layer, or it can contain a plurality of emitting layers, wherein at least one emitting layer contains at least one composition according to the invention.
- multiple emission layers are present, they preferably have a total of several emission maxima between 380 nm and 750 nm, so that overall white emission results, ie. H.
- various emitting compounds are used which can fluoresce or phosphoresce. Particular preference is given to three-layer systems, the three layers exhibiting blue, green and orange or red emission (for the basic structure see, for example, WO 05/011013).
- the optoelectronic device it is therefore preferable for the optoelectronic device to have further layers selected from a hole transport, hole injection, emitter, electron transport, electron injection, charge blocking, charge generation layer and / or an interlayer.
- low workfunction metals, metal alloys, metal complexes or multilayer structures of various metals are preferable, such as alkaline earth metals, alkali metals, main group metals or lanthanides (eg, Ca, Ba, Mg, Al, In, Mg, Yb, Sm, etc .).
- alkaline earth metals alkali metals
- main group metals or lanthanides eg, Ca, Ba, Mg, Al, In, Mg, Yb, Sm, etc .
- further metals which have a relatively high work function such as, for example, B. Ag, which then usually
- Combinations of metals such as Ca / Ag or Ba / Ag can be used. It may also be preferred to introduce between a metallic cathode and the organic semiconductor a thin intermediate layer of a material with a high dielectric constant. Suitable examples of these are alkali metal or alkaline earth metal fluorides, but also the corresponding oxides (eg LiF, Li 2 O 1 BaF 2 , MgO, NaF, etc.). The layer thickness of this layer is preferably between 1 and 10 nm.
- the anode high workfunction materials are preferred.
- the anode has a potential greater than 4.5 eV (against vacuum level).
- metals with a high redox potential such as Ag, Pt or Au, are suitable for this purpose.
- metal / metal oxide electrons for example Al / Ni / NiO x , Al / PtO x
- at least one of the electrodes must be transparent to allow either the irradiation of the organic material (O-SC) or the outcoupling of light (OLED / PLED, O-LASER).
- a preferred construction uses a transparent anode.
- Preferred anode materials here are conductive mixed metal oxides. Particularly preferred are indium tin oxide (ITO) or indium zinc oxide (IZO). Also preferred are conductive, doped organic materials, in particular conductive doped polymers such as PEDOT / PSS or PANI.
- the optoelectronic device is preferably an organic electroluminescent device (OLED), a polymer electroluminescent device (PLED) 1 an organic integrated
- O-IC organic field effect transistor
- O-TFT organic thin film transistor
- O-LET organic light emitting transistor
- O-SC organic solar cell
- O-FQD organic field quench device
- LOC light-emitting electrochemical cell
- O-laser organic laser diode
- the optoelectronic device has as an anode an ITO layer, preferably on a glass substrate or a polymer.
- a buffer layer preferably PEDOT / PSS or PANI, and thereon an intermediate layer (interlayer).
- an intermediate layer preferably PEDOT / PSS or PANI, and thereon an intermediate layer (interlayer).
- an intermediate layer preferably PEDOT / PSS or PANI, and thereon an intermediate layer (interlayer).
- an intermediate layer which contains the composition according to the invention.
- a cathode preferably a Ba / Al cathode is applied.
- the optoelectronic device is hermetically sealed.
- the mixture is mixed with 120 ml of acetic acid (50%).
- the phases are separated.
- the aqueous phase is extracted with heptane.
- the combined organic phases are extracted with water, dried over Na 2 SO 4 , filtered and concentrated under reduced pressure.
- the purification is carried out via a column (heptane / ethyl acetate) and by recrystallization (heptane) and gives a white solid (100%).
- the monomers M1, M2 and M3 are monomers which represent the conjugation-interrupting unit A and / or A 1 in a polymer prepared therefrom.
- the monomers M4, M5 and M6 are monomers which represent the optoelectronic functional group FG and / or FG 1 in a polymer produced therefrom.
- PLED polymeric organic light-emitting diode
- a typical device has the structure shown in FIG.
- ITO structure indium tin oxide, a transparent, conductive anode
- Sodalimeglas such pattern that arise with the vapor-deposited at the end of the manufacturing process cathode 4 pixels ä 2 x 2 mm.
- the substrates are cleaned in the clean room with DI water and a detergent (Deconex 15 PF) and then by a UV / ozone
- PEDOT is a polythiophene derivative (Baytron P VAI 4083sp.) From HC Starck, Goslar, which is supplied as an aqueous dispersion) is likewise applied by spin coating in the clean room.
- the required spin rate depends on the degree of dilution and the specific spincoater geometry (typically 80 nm: 4500 rpm).
- the substrates are baked for 10 minutes at 180 0 C on a hot plate.
- an interlayer typically a hole-dominated polymer, here HIL-012 from Merck
- an inert gas atmosphere nitrogen or argon
- 80 nm of the polymer layers of toluene solutions concentration interlayer 5 g / l, for the polymers P1 to P9 , V1 and V2 between 8 and 10 g / l and thus 2 to 2.5 g / l T1
- Both layers are baked at 180 ° C. for at least 10 minutes.
- the Ba / Al cathode is evaporated in the specified pattern by a Aufdampfmaske (high purity metals from Aldrich, especially barium 99.99%
- the devices are clamped in holder specially made for the substrate size and contacted by means of spring contacts.
- a photodiode with eye-tracking filter can be placed directly on the measuring holder in order to exclude the influence of extraneous light.
- the typical measurement setup is shown in FIG.
- the voltages are from 0 to max. 20 V in 0.2 V increments and lowered again.
- the current through the device and the photocurrent obtained by the photodiode is measured. In this way one obtains the IVL data of the test devices.
- Important parameters are the measured maximum efficiency ("Max. Eff.” In cd / A) and the voltage required for 100 cd / m 2 .
- the voltage required for 100 cd / m 2 is again applied after the first measurement and the photodiode is replaced by a spectrum measuring head. This is connected by an optical fiber with a spectrometer (Ocean Optics). From the measured spectrum, the color coordinates (CIE: Commission International de l'eclairage, normal viewer of 1931) can be derived.
- CIE Commission International de l'eclairage, normal viewer of 1931
- the polymers P1 to P9 according to the invention represent a marked improvement over the comparable polymers according to the prior art.
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Abstract
Description
Claims
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CN201080022753.2A CN102449796B (zh) | 2009-05-29 | 2010-05-04 | 包含至少一种发光体化合物和至少一种具有共轭间断单元的聚合物的组合物 |
US13/266,783 US9099655B2 (en) | 2009-05-29 | 2010-05-04 | Composition comprising at least one emitter compound and at least one polymer having conjugation-interrupting units |
KR1020117031395A KR101711229B1 (ko) | 2009-05-29 | 2010-05-04 | 적어도 1종의 방출체 화합물 및 공액 간섭 단위들을 갖는 적어도 1종의 중합체를 포함하는 조성물 |
JP2012512227A JP5792160B2 (ja) | 2009-05-29 | 2010-05-04 | 少なくとも1つの発光体化合物および共役遮断ユニットを有する少なくとも1つのポリマーを含む組成物 |
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DE102009023154A DE102009023154A1 (de) | 2009-05-29 | 2009-05-29 | Zusammensetzung, enthaltend mindestens eine Emitterverbindung und mindestens ein Polymer mit konjugationsunterbrechenden Einheiten |
DE102009023154.4 | 2009-05-29 |
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KR20120027417A (ko) | 2012-03-21 |
KR101711229B1 (ko) | 2017-02-28 |
JP2012528209A (ja) | 2012-11-12 |
CN102449796B (zh) | 2016-06-29 |
US9099655B2 (en) | 2015-08-04 |
JP5792160B2 (ja) | 2015-10-07 |
CN102449796A (zh) | 2012-05-09 |
DE102009023154A1 (de) | 2011-06-16 |
US20120056170A1 (en) | 2012-03-08 |
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