WO2007085377A2 - Elektrolumineszierende materialien und deren verwendung - Google Patents
Elektrolumineszierende materialien und deren verwendung Download PDFInfo
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- WO2007085377A2 WO2007085377A2 PCT/EP2007/000429 EP2007000429W WO2007085377A2 WO 2007085377 A2 WO2007085377 A2 WO 2007085377A2 EP 2007000429 W EP2007000429 W EP 2007000429W WO 2007085377 A2 WO2007085377 A2 WO 2007085377A2
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- WTBVQXHNQYKPTN-UHFFFAOYSA-N Cc1ccc(-c(ccc(C)c2)c2OC2=O)c2c1 Chemical compound Cc1ccc(-c(ccc(C)c2)c2OC2=O)c2c1 WTBVQXHNQYKPTN-UHFFFAOYSA-N 0.000 description 1
- ZCQWOFVYLHDMMC-UHFFFAOYSA-N Oxazole Chemical compound C1=COC=N1 ZCQWOFVYLHDMMC-UHFFFAOYSA-N 0.000 description 1
- WTKZEGDFNFYCGP-UHFFFAOYSA-N Pyrazole Chemical compound C=1C=NNC=1 WTKZEGDFNFYCGP-UHFFFAOYSA-N 0.000 description 1
- 238000003477 Sonogashira cross-coupling reaction Methods 0.000 description 1
- PJANXHGTPQOBST-VAWYXSNFSA-N Stilbene Natural products C=1C=CC=CC=1/C=C/C1=CC=CC=C1 PJANXHGTPQOBST-VAWYXSNFSA-N 0.000 description 1
- 238000006619 Stille reaction Methods 0.000 description 1
- 238000006069 Suzuki reaction reaction Methods 0.000 description 1
- XBDYBAVJXHJMNQ-UHFFFAOYSA-N Tetrahydroanthracene Natural products C1=CC=C2C=C(CCCC3)C3=CC2=C1 XBDYBAVJXHJMNQ-UHFFFAOYSA-N 0.000 description 1
- DPOPAJRDYZGTIR-UHFFFAOYSA-N Tetrazine Chemical compound C1=CN=NN=N1 DPOPAJRDYZGTIR-UHFFFAOYSA-N 0.000 description 1
- FZWLAAWBMGSTSO-UHFFFAOYSA-N Thiazole Chemical compound C1=CSC=N1 FZWLAAWBMGSTSO-UHFFFAOYSA-N 0.000 description 1
- DGEZNRSVGBDHLK-UHFFFAOYSA-N [1,10]phenanthroline Chemical compound C1=CN=C2C3=NC=CC=C3C=CC2=C1 DGEZNRSVGBDHLK-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 150000004982 aromatic amines Chemical class 0.000 description 1
- 125000005264 aryl amine group Chemical group 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 229920005601 base polymer Polymers 0.000 description 1
- RFRXIWQYSOIBDI-UHFFFAOYSA-N benzarone Chemical compound CCC=1OC2=CC=CC=C2C=1C(=O)C1=CC=C(O)C=C1 RFRXIWQYSOIBDI-UHFFFAOYSA-N 0.000 description 1
- WMUIZUWOEIQJEH-UHFFFAOYSA-N benzo[e][1,3]benzoxazole Chemical compound C1=CC=C2C(N=CO3)=C3C=CC2=C1 WMUIZUWOEIQJEH-UHFFFAOYSA-N 0.000 description 1
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 1
- 239000012964 benzotriazole Substances 0.000 description 1
- 235000010290 biphenyl Nutrition 0.000 description 1
- 150000004074 biphenyls Chemical class 0.000 description 1
- 125000004369 butenyl group Chemical group C(=CCC)* 0.000 description 1
- 125000000480 butynyl group Chemical group [*]C#CC([H])([H])C([H])([H])[H] 0.000 description 1
- 229910052792 caesium Inorganic materials 0.000 description 1
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000002800 charge carrier Substances 0.000 description 1
- 238000006757 chemical reactions by type Methods 0.000 description 1
- WCZVZNOTHYJIEI-UHFFFAOYSA-N cinnoline Chemical compound N1=NC=CC2=CC=CC=C21 WCZVZNOTHYJIEI-UHFFFAOYSA-N 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 125000001995 cyclobutyl group Chemical group [H]C1([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 1
- 125000001162 cycloheptenyl group Chemical group C1(=CCCCCC1)* 0.000 description 1
- 125000000582 cycloheptyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- 125000000596 cyclohexenyl group Chemical group C1(=CCCCC1)* 0.000 description 1
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- 125000000522 cyclooctenyl group Chemical group C1(=CCCCCCC1)* 0.000 description 1
- 125000000640 cyclooctyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C([H])([H])C1([H])[H] 0.000 description 1
- 125000002433 cyclopentenyl group Chemical group C1(=CCCC1)* 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
- 230000007547 defect Effects 0.000 description 1
- 239000000412 dendrimer Substances 0.000 description 1
- 229920000736 dendritic polymer Polymers 0.000 description 1
- 150000001987 diarylethers Chemical class 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- JKFAIQOWCVVSKC-UHFFFAOYSA-N furazan Chemical compound C=1C=NON=1 JKFAIQOWCVVSKC-UHFFFAOYSA-N 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 125000006038 hexenyl group Chemical group 0.000 description 1
- 125000005980 hexynyl group Chemical group 0.000 description 1
- 230000005525 hole transport Effects 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 150000003949 imides Chemical class 0.000 description 1
- 238000010348 incorporation Methods 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
- HOBCFUWDNJPFHB-UHFFFAOYSA-N indolizine Chemical compound C1=CC=CN2C=CC=C21 HOBCFUWDNJPFHB-UHFFFAOYSA-N 0.000 description 1
- 238000007641 inkjet printing Methods 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 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
- 229910052747 lanthanoid Inorganic materials 0.000 description 1
- 150000002602 lanthanoids Chemical class 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000003136 n-heptyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001280 n-hexyl group Chemical group C(CCCCC)* 0.000 description 1
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000004365 octenyl group Chemical group C(=CCCCCCC)* 0.000 description 1
- 125000005069 octynyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C#C* 0.000 description 1
- 238000013086 organic photovoltaic Methods 0.000 description 1
- 229910052762 osmium Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- SLIUAWYAILUBJU-UHFFFAOYSA-N pentacene Chemical compound C1=CC=CC2=CC3=CC4=CC5=CC=CC=C5C=C4C=C3C=C21 SLIUAWYAILUBJU-UHFFFAOYSA-N 0.000 description 1
- 125000006340 pentafluoro ethyl group Chemical group FC(F)(F)C(F)(F)* 0.000 description 1
- 125000002255 pentenyl group Chemical group C(=CCCC)* 0.000 description 1
- 125000005981 pentynyl group Chemical group 0.000 description 1
- 125000002080 perylenyl group Chemical group C1(=CC=C2C=CC=C3C4=CC=CC5=CC=CC(C1=C23)=C45)* 0.000 description 1
- 125000005563 perylenylene group Chemical group 0.000 description 1
- CSHWQDPOILHKBI-UHFFFAOYSA-N peryrene Natural products C1=CC(C2=CC=CC=3C2=C2C=CC=3)=C3C2=CC=CC3=C1 CSHWQDPOILHKBI-UHFFFAOYSA-N 0.000 description 1
- 150000002987 phenanthrenes Chemical class 0.000 description 1
- 150000002988 phenazines Chemical class 0.000 description 1
- 108091008695 photoreceptors Proteins 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920001690 polydopamine Polymers 0.000 description 1
- 229920002098 polyfluorene Polymers 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 125000004368 propenyl group Chemical group C(=CC)* 0.000 description 1
- 125000002568 propynyl group Chemical group [*]C#CC([H])([H])[H] 0.000 description 1
- CPNGPNLZQNNVQM-UHFFFAOYSA-N pteridine Chemical compound N1=CN=CC2=NC=CN=C21 CPNGPNLZQNNVQM-UHFFFAOYSA-N 0.000 description 1
- 238000010350 quantum mechanical simulation Methods 0.000 description 1
- 238000010791 quenching Methods 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
- 238000011160 research Methods 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 229910052707 ruthenium Inorganic materials 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
- 238000000926 separation method Methods 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- PJANXHGTPQOBST-UHFFFAOYSA-N stilbene Chemical compound C=1C=CC=CC=1C=CC1=CC=CC=C1 PJANXHGTPQOBST-UHFFFAOYSA-N 0.000 description 1
- 235000021286 stilbenes Nutrition 0.000 description 1
- 125000004434 sulfur atom Chemical group 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 150000001911 terphenyls Chemical class 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 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
- 239000010409 thin film Substances 0.000 description 1
- 150000003613 toluenes Chemical class 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 239000013638 trimer Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- 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
-
- 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
- C08G61/12—Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D493/00—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L65/00—Compositions of macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain; Compositions of derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/06—Luminescent, e.g. electroluminescent, chemiluminescent materials containing organic luminescent materials
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B6/13—Integrated optical circuits characterised by the manufacturing method
- G02B6/138—Integrated optical circuits characterised by the manufacturing method by using polymerisation
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- 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
- H10K85/154—Ladder-type polymers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/60—Organic compounds having low molecular weight
- H10K85/649—Aromatic compounds comprising a hetero atom
- H10K85/653—Aromatic compounds comprising a hetero atom comprising only oxygen as heteroatom
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
- C09K2211/14—Macromolecular compounds
- C09K2211/1441—Heterocyclic
- C09K2211/145—Heterocyclic containing oxygen as the only heteroatom
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
- C09K2211/14—Macromolecular compounds
- C09K2211/1441—Heterocyclic
- C09K2211/1466—Heterocyclic containing nitrogen as the only heteroatom
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
- C09K2211/14—Macromolecular compounds
- C09K2211/1441—Heterocyclic
- C09K2211/1491—Heterocyclic containing other combinations of heteroatoms
-
- 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 electroluminescent materials, that is to say: monomers, polymers, blends and formulations comprising these polymers and the use of the monomers, polymers, blends and formulations according to the invention in electronic and optoelectronic components.
- full-color display elements full-color displays
- various classes of materials have already been proposed or developed.
- poly-fluorene derivatives and also poly-spirobifluorene, poly-dihydrophenanthrene and poly-indenofluorene derivatives are suitable.
- Polymers containing a combination of two or more of these structural elements have also been proposed.
- polymers containing poly-para-phenylene (PPP) as a structural element are used.
- the polymers according to the prior art may show already good properties in use in PLED's. However, despite the progress already made, these polymers do not yet meet the require- changes made to them for high quality applications. In particular, the life of the green and especially the blue-emitting polymers is not sufficient for many applications. The same applies to the efficiency of the red-emitting polymers. Furthermore, with many blue-emitting polymers according to the prior art, the emission color is not yet sufficiently deep blue.
- OFET 's organic field effect transistors: most of the stable OFET 's today are based on a fast p-channel. It is of the highest interest to have OFET ' s with stable e - channel, as this is a drastic simplification of the architecture of the driving
- Polymers containing structural elements of formula (1) or (2) are known as materials for use in OLED displays. They are described in WO 03/099901, WO 05/033174 and WO 04/039859.
- the present invention relates to polymers containing at least 0.5 mol%, preferably at least 5 mol%, more preferably at least 10 mol% and in particular at least 50 mol% units of the formula (3), wherein the symbols and indices used have the following meanings :
- M is identical or different at each occurrence, an aromatic, heteroaromatic or non-aromatic ring system having 2 to 40 carbon atoms, which is unsubstituted or with one or a plurality of radicals R 1 may be substituted, which may be the same or different at each occurrence,
- R 1 may be the same or different at each occurrence and as defined below
- Yi, Y 2 , Y 3 is the same or different at each instance and is a bridge which, with M, spans a cyclic system selected from B (R 1 ),
- j establishes the linkage to the polymer and may be at each
- Occurrence may be the same or different and is defined below or is -N-Ar,
- R 2 is identical or different H, halogen
- R 3 is the same or different at each occurrence and is a straight-chain, branched or cyclic alkyl or alkoxy group having 1 to 10 C atoms, an aromatic or heteroaromatic ring system having 2 to 24 C atoms, which may be substituted two substituents R 3 also together form a mono- or polycyclic ring system,
- n, m, p are the same or different 0, 1 or 2 for each occurrence, with the proviso that at least one n or m must be 1 or 2, but preferably with the proviso that not all n, m and p are simultaneously 1 or 2, and
- q can integer values of 1 to 10 6 , 1 preferably from to
- An aromatic ring system in the sense of the present invention contains 6 to 40 carbon atoms in the ring system.
- a heteroaromatic ring system in the sense of the present invention contains 2 to 40 C atoms and at least one heteroatom in the ring system, with the proviso that the sum of the C atoms and heteroatoms gives at least 5.
- the heteroatoms are preferably selected from Si, N, P 1 O, S and / or Ge, more preferably selected from N, P, O and / or S.
- An aromatic or heteroaromatic ring system in the context of the present invention is to be understood as a system which does not necessarily contain only aryl or heteroaryl groups but in which also several aryl or heteroaryl groups are replaced by a short, non-aromatic moiety (less than 10% of the atoms other than H, preferably less than 5% of the atoms other than H), such as z.
- a C, N or O atom can be interrupted.
- systems such as 9,9'-spirobifluorene, 9,9-diaryl fluorene, triarylamine, diaryl ethers, etc. are also to be understood as aromatic ring systems in the context of the present invention.
- a non-aromatic ring system in the sense of the present invention contains 3 to 40, preferably 6 to 40 carbon atoms in the ring system and includes both saturated and partially unsaturated ring systems, which may be unsubstituted or mono- or polysubstituted by radicals R 1 , the may be the same or different at each occurrence and may also contain one or more heteroatoms, preferably Si, N, P, O, S and / or Ge 1 particularly preferably N, P, O and / or S. These may be, for example, cyclohexyl-type or piperidine-type systems, but also cyclooctadiene-type ring systems. Also fused non-aromatic ring systems should be understood by this.
- a C1 to C40 alkyl group in which individual H atoms or CH 2 groups can be substituted by the aforementioned groups, more preferably the methyl, ethyl, n-propyl, i- Propyl, cyclopropyl, n-butyl, i-butyl, s-butyl, t-butyl, cyclobutyl, 2-methylbutyl, n-pentyl, s-pentyl, cyclopentyl, n-hexyl, cyclohexyl, n-heptyl, cycloheptyl, n- Octyl, cyclooctyl, 2-ethylhexyl, trifluoromethyl, pentafluoroethyl, 2,2,2-trifluoroethyl, ethenyl, propenyl, butenyl, pentenyl, cyclopentenyl, hexyl,
- a C 1 to C 40 alkoxy group is more preferably understood to mean methoxy, ethoxy, n-propoxy, isopropoxy, n-butoxy, isobutoxy, s-butoxy, t-butoxy or 2-methylbutoxy.
- C2-C40 aryl or heteroaryl group which may be monovalent or bivalent depending on the use, which may be substituted in each case with the abovementioned radicals R 1 and which may be linked via any position on the aromatic or heteroaromatic
- aromatic and heteroaromatic ring systems in the context of the present invention in particular biphenyls, terphenyls, fluorene, spirobifluorene, dihydrophenanthrene, tetrahydropyrenes and cis- or trans-indenofluorene understood in addition to the abovementioned aryl and heteroaryl groups.
- R 1 may be, more preferably for an aryl or heteroaryl group selected from benzene, naphthalene, anthracene, phenanthrene, pyridine, pyrene and thiophene, in particular benzene, which may be substituted in each case with one or two radicals R 1 .
- R 1 denotes a straight-chain, branched or cyclic alkyl chain having 2 to 15 C atoms, in which one or more non-adjacent carbon atoms are also present.
- the two radicals R 1 together may also form a further mono- or polycyclic, aromatic or aliphatic ring system.
- q has integer values of from 1 to 10, preferably from 1 to 6 and particularly preferably from 1 to 4.
- One aspect of the invention is conjugated polymers. Another aspect of the invention is non-conjugated
- in yet another aspect of the invention are partially conjugated polymers. Preference is given to conjugated or partially conjugated polymers.
- a further aspect of the present invention may be branched polymers, which are to be understood as meaning both highly branched and dendrimeric polymer structures.
- Conjugated polymers in the context of the present invention are polymers which contain in the main chain mainly sp 2 -hybridized carbon atoms, which may also be replaced by corresponding heteroatoms. In the simplest case this means alternating presence of double and single bonds in the main chain. Mainly, of course, suggests that naturally occurring defects that lead to conjugation disruptions do not invalidate the term "conjugated polymer".
- conjugated if in the main chain, for example arylamine units and / or certain heterocycles (ie conjugation of N, O or S atoms) and / or organometallic complexes (ie conjugation via the metal atom) are ,
- units such as simple alkyl bridges, (thio) ether, ester, amide or imide linkages are clearly defined as non-conjugated segments.
- a partially conjugated polymer is meant a polymer in which longer conjugated portions in the main chain are interrupted by non-conjugated portions, or which contains longer conjugated portions in the side chains of a non-conjugated polymer in the main chain.
- the polymers according to the invention may contain, in addition to units of the formula (3), further structural elements. These include those as disclosed and listed in WO 02/077060 and WO 05/014689.
- the further structural units can come, for example, from the following classes: Group 1: units which increase the hole injection and / or transport properties of the polymers;
- Group 2 units which increase the electron injection and / or transport properties of the polymers
- 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 is obtained instead of electro-fluorescence;
- Group 5 units that improve the transition from the singlet to the triplet state
- Group 6 units which influence the morphology or also the emission color of the resulting polymers
- Group 7 units which are typically used as backbone.
- Preferred polymers according to the invention are those in which at least one structural element has charge transport properties, ie. H. contain the units from groups 1 and / or 2.
- these arylamines and heterocycles lead to a HOMO in the polymer of greater than -5.8 eV (vs. vacuum level), more preferably greater than -5.5 eV.
- these units in the polymer result in a LUMO of less than -2.7 eV (vs. vacuum level), more preferably less than -3.0 eV.
- the polymers according to the invention may contain units from group 3 in which structures which increase hole mobility and which increase electron mobility (that is to say units from groups 1 and 2) are bonded directly to one another. Some of these 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.
- compounds containing d- or f-transition metals which satisfy the above condition.
- Very particular preference is given here to corresponding structural units which contain elements of group 8 to 10 (Ru, Os, Rh, Ir, Pd, Pt) but also lanthanide complexes (for example Eu 3+ ).
- Structural units for the polymers of the invention come here z.
- WO 04/026886 are described. Corresponding monomers are described in WO 02/068435 and in DE 10350606 A1. Group 5 structural elements are those which enhance the singlet to triplet state transition and which, when used in support of the Group 4 structural elements, improve the phosphorescence properties of these structural elements. Carbazole and bridged carbazole dimer units, in particular, are suitable for this purpose, as described in WO 04/070772 and WO 04/113468. Also suitable for this purpose are ketones, phosphine oxides, sulfoxides, sulfones, silane derivatives and similar compounds, as described in DE 10349033 A1.
- Group 6 structural elements which influence the morphology or also the emission color of the polymers are, in addition to those mentioned above, those which have at least one further aromatic or another conjugated structure which does not fall under the abovementioned groups, ie the charge carrier mobility only which are not organometallic complexes or have no influence on the singlet-triplet transition. Such structural elements can influence the morphology, but also the emission color of the resulting polymers. Depending on the unit, they can therefore also be used as emitters. Preference is given to aromatic structures having 6 to 40 carbon atoms or else toluenes, stilbene or bisstyrylarylene derivatives, each of which may be substituted by one or more radicals R 1 .
- Particularly preferred is the incorporation of 1, 4-phenylene, 1, 4-naphthylene, 1, 4- or 9,10-anthrylene, 2,7- or 3,6-phenanthrylene, 1, 6, 2,7- or 4,9-pyrenylene-, 3,9- or 3,10
- Group 7 structural elements are units having aromatic structures of from 6 to 40 carbon atoms, which are typically used as the polymer backbone. 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 and trans-indenofluorene derivatives. However, since the proportion of units of the formula (3) is more particularly at least 50 mol%, these structural elements are preferably not used as the main polymer skeleton.
- Structural units according to formula (3) additionally contain one or more units selected from groups 1 to 7. It may also be preferred if more than one structural unit from a group is present at the same time.
- the proportion of the units of the formula (3) is preferably at least 5 mol%, particularly preferably at least 10 mol% and in particular at least 50 mol%. This preference applies in particular when the units of formula (3) are the polymer backbone.
- other proportions may be preferred, for example, a fraction of the order of 0.5 to 20 mol%, if it is the hole conductor or the emitter in an electroluminescent polymer.
- the preferred proportion may again be different, for example, up to 100 mol%, when it comes to hole- or electron-conducting units.
- polymers according to the invention which, in addition to structural units of the formula (3), also contain at least one structural unit from the abovementioned groups 1 to 7. Particularly preferred are at least two structural units from different of the above classes. Most preferably, one of these structural units is selected from the group of hole-conducting units, and the other group is an emitting unit, whereby these two functions (hole conduction and emission) can also be taken over by the same unit.
- Units of the formula (3) are also particularly suitable for the synthesis of white-emitting copolymers. These preferably contain a sufficiently small proportion of green and red emitting units, so that an overall white emission results. How does white emitting copoly can be synthesized, is described in detail in DE 10343606.
- Units of the formula (3) are very particularly suitable for the synthesis of phospholuminescent copolymers. These then contain, in addition to the units of the formula (3) according to the invention, units of
- the proportion of units of group 4 is preferably ⁇ 20%, particularly preferably ⁇ 10% and in particular ⁇ 5%.
- the polymers according to the invention preferably have from 10 to 10,000, more preferably from 20 to 5000 and in particular from 20 to 2000 repeat units.
- Non-aromatic C atoms are included in corresponding straight-chain, branched or cyclic alkyl or alkoxy chains, as for example in the description for R 1 with respect to formula (3).
- Xi, X 2 at each occurrence is a bridge spanning M a cyclic system where Xi is O and X 2 is the group
- M represents, identically or differently, an aromatic ring system having 2 to 40 C atoms each occurrence, which may be unsubstituted or substituted by one or more R 1 radicals which may be the same or different at each occurrence ,
- M represents, identically or differently, an aromatic ring system having 2 to 40 C atoms, which may be unsubstituted or substituted by one or more radicals R 1 , which may be identical or different at each occurrence can.
- Preferred polymers according to the invention comprising units of the formula (3) are characterized in that n, m and p are identical or different 0, 1 or 2 on each occurrence, with the proviso that at least one n or m is equal to 2.
- Preferred polymers according to the invention are characterized in that they contain units of the formula (3) in which q assumes integer values.
- Particularly preferred polymers according to the invention are characterized in that they contain units of the formula (3) in which q assumes integer values of ⁇ 10.
- Particularly preferred polymers according to the invention are characterized in that they contain units of the formula (3) in which q assumes integer values of ⁇ 5.
- the units of the formula (3) are suitable for various functions in the polymer.
- they can preferably be used as a polymer backbone or as an emitter.
- which compounds are particularly suitable for which function is described above all by the substituents X and Y.
- the substituents R 1 also have an influence on the electronic properties of the units of the formula (3).
- Examples of preferred units of the formula (3) are the following structures 3.1 to 3.29, in which the linkage in the polymer is indicated in each case by the dashed bonds. These structures can be substituted in all places where substitution is possible. However, possible substituents are not listed for the sake of clarity.
- the polymers of the invention are homopolymers or copolymers.
- copolymers according to the invention can potentially have one or more further structures, preferably from the abovementioned groups 1 to 7.
- copolymers according to the invention may have random, alternating or block-like structures or alternatively have several of these structures in turn. How copolymers with block-like structures can be obtained is described in detail, for example, in WO 05/014688. Coplymeres may also be highly branched or dendrimeric systems.
- the polymers according to the invention are prepared by polymerization of one or more types of monomer, of which at least one monomer in the polymer leads to units of the formula (3). Corresponding polymerization reactions are in principle many. However, some types have proved particularly useful here, leading to CC or CN linkages:
- Monomers which lead to polymers according to the invention comprising structural units of the formula (3) and have at the 2,7-position (or in a suitable position on Y, if present) suitable functionalities which allow this monomer unit to be incorporated into the polymer, are new and therefore also the subject of the present invention.
- the present invention furthermore relates to bifunctional monomeric compounds of the formula (4)
- the C-C linkages are preferably selected from the groups of the SUZUKI coupling, the YAMAMOTO coupling, the SONOGASHIRA coupling, the HECK coupling and the STILLE coupling.
- the C-N linkage is preferably a HARTWIGBUCHWALD clutch.
- the polymer of the invention not as a pure substance, but. to use as a mixture (blend) together with at least one further optional polymeric, oligomeric, dendritic and / or low molecular weight substance.
- these may, for example, improve the electronic properties, affect the singlet to triplet state transfer, or even emit light from the singlet or triplet state.
- electronically inert substances may be useful to influence, for example, the morphology of the polymer film formed or the viscosity of polymer solutions. Such blends are therefore also the subject of the present invention.
- the invention further provides solutions and formulations of at least one inventive polymer or a blends according to the invention in at least one solvent.
- polymer solutions can be prepared is described, for example, in WO 02/072714, in WO 03/019694 and in the literature cited therein.
- These solutions can be used to prepare thin polymer layers, for example by surface coating methods (eg spin coating) or printing methods (eg ink jet printing).
- the polymers of the invention can be used in PLEDs. These contain cathode, anode, emission layer and optionally further layers, such as. B. preferably a Lochinjetechnischs slaughter and optionally an intermediate layer between the Lochinjetechnischs- and the emission layer. How PLEDs can be produced is described in detail as a general method in WO 04/037887, which must be adapted accordingly for the individual case.
- the polymers according to the invention are particularly suitable as electroluminescent materials in the PLEDs or displays produced in this way.
- electroluminescent materials are materials which can be used as active layer in a PLED.
- Active layer means that the layer is able to emit light upon application of an electric field (light-emitting layer) and / or that it improves the injection and / or transport of the positive and / or negative charges (charge injection or charge transport layer). It may also be an intermediate layer between a hole injection layer and an emission layer.
- the invention therefore also relates to the use of a polymer according to the invention in a PLED, in particular as an electroluminescent material.
- the invention thus likewise relates to a PLED having one or more active layers, wherein at least one of these active layers contains one or more polymers according to the invention.
- the active layer may be, for example, a light-emitting layer and / or a transport layer and / or a charge injection layer and / or an intermediate layer.
- the polymers according to the invention have the following surprising advantages over the poly-spirobifluorenes and polyfluorenes described in WO 03/020790 and in WO 02/077060, which are hereby named as the closest prior art:
- the polymers according to the invention have higher operative lifetimes, in particular in the case of green and blue-emitting PLEDs.
- the polymers according to the invention are good electron conductors, even without the use of electron-conducting comonomers. Electron conductive properties in polymers have hitherto been difficult to realize because many prior art electron conductors are not sufficiently stable for high value applications. (5) Since the new polymer backbone of formula (3) itself results in deep blue emission, it is easily possible to introduce emissive units that still produce blue emission in the polymer. This makes it easy to separate charge transport and emission properties in the polymer. This is necessary to stable
- Example 1 The quantum-mechanical simulations for Example 1, the corresponding ice-linked structure (Example 2) and the derivatives in which q (according to formula (3)) assumes higher values were carried out in order to be able to make statements about the molecular geometry and the position of the energy levels ,
- Examples 5 and 6 were modeled using the CaChe simulation program (version 6.1). The most energetically stable conformations were found by optimization using AM1 methods. The calculation of the HOMO and LUMO energy levels was also based on the optimized geometries with AM1 methods. All five trimers show very low LUMO energy levels, typically around -3.4 eV. As already explained above, this result raises the strict restriction in the choice of suitable cathode materials.
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EP07702866A EP1977432A1 (de) | 2006-01-26 | 2007-01-18 | Elektrolumineszierende materialien und deren verwendung |
US12/162,219 US20090032776A1 (en) | 2006-01-26 | 2007-01-18 | Electroluminescent materials and their use |
JP2008551700A JP2009524710A (ja) | 2006-01-26 | 2007-01-18 | エレクトロルミネセンス材料及びその使用 |
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DE102006003710A DE102006003710A1 (de) | 2006-01-26 | 2006-01-26 | Elektrolumineszierende Materialien und deren Verwendung |
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DE10328627A1 (de) * | 2003-06-26 | 2005-02-17 | Covion Organic Semiconductors Gmbh | Neue Materialien für die Elektrolumineszenz |
DE10337077A1 (de) * | 2003-08-12 | 2005-03-10 | Covion Organic Semiconductors | Konjugierte Copolymere, deren Darstellung und Verwendung |
DE10343606A1 (de) * | 2003-09-20 | 2005-04-14 | Covion Organic Semiconductors Gmbh | Weiß emittierende Copolymere, deren Darstellung und Verwendung |
CN1863838B (zh) * | 2003-10-01 | 2010-12-22 | 住友化学株式会社 | 聚合物发光材料和聚合物发光器件 |
WO2005040302A1 (de) * | 2003-10-22 | 2005-05-06 | Merck Patent Gmbh | Neue materialien für die elektrolumineszenz und deren verwendung |
DE10350606A1 (de) * | 2003-10-30 | 2005-06-09 | Covion Organic Semiconductors Gmbh | Verfahren zur Herstellung heteroleptischer, ortho-metallierter Organometall-Verbindungen |
-
2006
- 2006-01-26 DE DE102006003710A patent/DE102006003710A1/de not_active Ceased
-
2007
- 2007-01-18 CN CNA2007800035719A patent/CN101375350A/zh active Pending
- 2007-01-18 WO PCT/EP2007/000429 patent/WO2007085377A2/de active Application Filing
- 2007-01-18 KR KR1020087020937A patent/KR20080091266A/ko not_active Application Discontinuation
- 2007-01-18 US US12/162,219 patent/US20090032776A1/en not_active Abandoned
- 2007-01-18 JP JP2008551700A patent/JP2009524710A/ja not_active Withdrawn
- 2007-01-18 EP EP07702866A patent/EP1977432A1/de not_active Ceased
Patent Citations (4)
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WO2003048225A2 (de) | 2001-12-06 | 2003-06-12 | Covion Organic Semiconductors Gmbh | Prozess zur herstellung von aryl-aryl gekoppelten verbindungen |
WO2004041901A1 (en) | 2002-11-08 | 2004-05-21 | Covion Organic Semiconductors Gmbh | Aryl-substituted polyindenofluorenes for use in organic electroluminiscent devices |
WO2004106409A1 (en) | 2003-05-30 | 2004-12-09 | Covion Organic Semiconductors Gmbh | Polymer |
WO2004113412A2 (en) | 2003-06-23 | 2004-12-29 | Covion Organic Semiconductors Gmbh | Polymer |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012013272A1 (en) | 2010-07-26 | 2012-02-02 | Merck Patent Gmbh | Quantum dots and hosts |
WO2013113349A1 (en) | 2012-01-30 | 2013-08-08 | Merck Patent Gmbh | Nanocrystals on fibers |
Also Published As
Publication number | Publication date |
---|---|
US20090032776A1 (en) | 2009-02-05 |
KR20080091266A (ko) | 2008-10-09 |
CN101375350A (zh) | 2009-02-25 |
WO2007085377A8 (de) | 2009-08-13 |
EP1977432A1 (de) | 2008-10-08 |
DE102006003710A1 (de) | 2007-08-02 |
JP2009524710A (ja) | 2009-07-02 |
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