WO2005097944A1 - 発光材料及びその製造方法 - Google Patents
発光材料及びその製造方法 Download PDFInfo
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- WO2005097944A1 WO2005097944A1 PCT/JP2005/006440 JP2005006440W WO2005097944A1 WO 2005097944 A1 WO2005097944 A1 WO 2005097944A1 JP 2005006440 W JP2005006440 W JP 2005006440W WO 2005097944 A1 WO2005097944 A1 WO 2005097944A1
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- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
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- 101150086735 Lmo1 gene Proteins 0.000 description 1
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- 238000005481 NMR spectroscopy Methods 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 1
- 235000021314 Palmitic acid Nutrition 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 235000005811 Viola adunca Nutrition 0.000 description 1
- 240000009038 Viola odorata Species 0.000 description 1
- 235000013487 Viola odorata Nutrition 0.000 description 1
- 235000002254 Viola papilionacea Nutrition 0.000 description 1
- 101100511353 Xenopus laevis lmo3 gene Proteins 0.000 description 1
- JAWMENYCRQKKJY-UHFFFAOYSA-N [3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-ylmethyl)-1-oxa-2,8-diazaspiro[4.5]dec-2-en-8-yl]-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidin-5-yl]methanone Chemical compound N1N=NC=2CN(CCC=21)CC1=NOC2(C1)CCN(CC2)C(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F JAWMENYCRQKKJY-UHFFFAOYSA-N 0.000 description 1
- CWRYPZZKDGJXCA-UHFFFAOYSA-N acenaphthene Chemical compound C1=CC(CC2)=C3C2=CC=CC3=C1 CWRYPZZKDGJXCA-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 125000002252 acyl group Chemical group 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 125000005234 alkyl aluminium group Chemical group 0.000 description 1
- 150000003973 alkyl amines Chemical class 0.000 description 1
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- 125000003368 amide group Chemical group 0.000 description 1
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- 125000005577 anthracene group Chemical group 0.000 description 1
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- PYKYMHQGRFAEBM-UHFFFAOYSA-N anthraquinone Natural products CCC(=O)c1c(O)c2C(=O)C3C(C=CC=C3O)C(=O)c2cc1CC(=O)OC PYKYMHQGRFAEBM-UHFFFAOYSA-N 0.000 description 1
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- YSJGOMATDFSEED-UHFFFAOYSA-M behentrimonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCCCCCCCC[N+](C)(C)C YSJGOMATDFSEED-UHFFFAOYSA-M 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 150000001555 benzenes Chemical class 0.000 description 1
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 description 1
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- WGQKYBSKWIADBV-UHFFFAOYSA-O benzylaminium Chemical compound [NH3+]CC1=CC=CC=C1 WGQKYBSKWIADBV-UHFFFAOYSA-O 0.000 description 1
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- WOWHHFRSBJGXCM-UHFFFAOYSA-M cetyltrimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCC[N+](C)(C)C WOWHHFRSBJGXCM-UHFFFAOYSA-M 0.000 description 1
- VYXSBFYARXAAKO-WTKGSRSZSA-N chembl402140 Chemical compound Cl.C1=2C=C(C)C(NCC)=CC=2OC2=C\C(=N/CC)C(C)=CC2=C1C1=CC=CC=C1C(=O)OCC VYXSBFYARXAAKO-WTKGSRSZSA-N 0.000 description 1
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- AFYCEAFSNDLKSX-UHFFFAOYSA-N coumarin 460 Chemical compound CC1=CC(=O)OC2=CC(N(CC)CC)=CC=C21 AFYCEAFSNDLKSX-UHFFFAOYSA-N 0.000 description 1
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- 125000005678 ethenylene group Chemical group [H]C([*:1])=C([H])[*:2] 0.000 description 1
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- 150000004665 fatty acids Chemical class 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 210000003918 fraction a Anatomy 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 229910052735 hafnium Inorganic materials 0.000 description 1
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 125000001841 imino group Chemical group [H]N=* 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
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- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 150000002503 iridium Chemical class 0.000 description 1
- CECAIMUJVYQLKA-UHFFFAOYSA-N iridium 1-phenylisoquinoline Chemical compound [Ir].C1=CC=CC=C1C1=NC=CC2=CC=CC=C12.C1=CC=CC=C1C1=NC=CC2=CC=CC=C12.C1=CC=CC=C1C1=NC=CC2=CC=CC=C12 CECAIMUJVYQLKA-UHFFFAOYSA-N 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- DZVCFNFOPIZQKX-LTHRDKTGSA-M merocyanine Chemical compound [Na+].O=C1N(CCCC)C(=O)N(CCCC)C(=O)C1=C\C=C\C=C/1N(CCCS([O-])(=O)=O)C2=CC=CC=C2O\1 DZVCFNFOPIZQKX-LTHRDKTGSA-M 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 239000000693 micelle Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 239000010955 niobium Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- XCOHAFVJQZPUKF-UHFFFAOYSA-M octyltrimethylammonium bromide Chemical compound [Br-].CCCCCCCC[N+](C)(C)C XCOHAFVJQZPUKF-UHFFFAOYSA-M 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 150000001282 organosilanes Chemical class 0.000 description 1
- 239000003973 paint Substances 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
- 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
- 150000005041 phenanthrolines Chemical class 0.000 description 1
- 229920000233 poly(alkylene oxides) Polymers 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 229920000123 polythiophene Polymers 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011164 primary particle Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000001028 reflection method Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000028327 secretion Effects 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000000527 sonication Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 238000012916 structural analysis Methods 0.000 description 1
- 125000005504 styryl group Chemical group 0.000 description 1
- 125000001174 sulfone group Chemical group 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 238000002411 thermogravimetry Methods 0.000 description 1
- 125000003396 thiol group Chemical group [H]S* 0.000 description 1
- ANRHNWWPFJCPAZ-UHFFFAOYSA-M thionine Chemical compound [Cl-].C1=CC(N)=CC2=[S+]C3=CC(N)=CC=C3N=C21 ANRHNWWPFJCPAZ-UHFFFAOYSA-M 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 125000005369 trialkoxysilyl group Chemical group 0.000 description 1
- IRXPRMJNIPXVBP-UHFFFAOYSA-N triethoxy-(1-phenyl-4-triethoxysilylcyclohexa-2,4-dien-1-yl)silane Chemical group C(C)O[Si](C1(CC=C(C=C1)[Si](OCC)(OCC)OCC)C1=CC=CC=C1)(OCC)OCC IRXPRMJNIPXVBP-UHFFFAOYSA-N 0.000 description 1
- UKHSZDXIPCKSPL-UHFFFAOYSA-N triethoxy-(10-triethoxysilylanthracen-9-yl)silane Chemical compound C1=CC=C2C([Si](OCC)(OCC)OCC)=C(C=CC=C3)C3=C([Si](OCC)(OCC)OCC)C2=C1 UKHSZDXIPCKSPL-UHFFFAOYSA-N 0.000 description 1
- CEYYIKYYFSTQRU-UHFFFAOYSA-M trimethyl(tetradecyl)azanium;chloride Chemical compound [Cl-].CCCCCCCCCCCCCC[N+](C)(C)C CEYYIKYYFSTQRU-UHFFFAOYSA-M 0.000 description 1
- PWYVVBKROXXHEB-UHFFFAOYSA-M trimethyl-[3-(1-methyl-2,3,4,5-tetraphenylsilol-1-yl)propyl]azanium;iodide Chemical compound [I-].C[N+](C)(C)CCC[Si]1(C)C(C=2C=CC=CC=2)=C(C=2C=CC=CC=2)C(C=2C=CC=CC=2)=C1C1=CC=CC=C1 PWYVVBKROXXHEB-UHFFFAOYSA-M 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 230000002618 waking effect Effects 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Classifications
-
- 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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
- H05B33/12—Light sources with substantially two-dimensional radiating surfaces
- H05B33/14—Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the electroluminescent material, or by the simultaneous addition of the electroluminescent material in or onto the light source
-
- 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
-
- 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
- H10K85/40—Organosilicon compounds, e.g. TIPS pentacene
-
- 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
- C09K2211/10—Non-macromolecular compounds
- C09K2211/1003—Carbocyclic compounds
- C09K2211/1014—Carbocyclic compounds bridged by heteroatoms, e.g. N, P, Si or B
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K2101/00—Properties of the organic materials covered by group H10K85/00
- H10K2101/10—Triplet emission
-
- 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
-
- 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
- H10K85/615—Polycyclic condensed aromatic hydrocarbons, e.g. anthracene
- H10K85/622—Polycyclic condensed aromatic hydrocarbons, e.g. anthracene containing four rings, e.g. pyrene
-
- 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
- H10K85/631—Amine compounds having at least two aryl rest on at least one amine-nitrogen atom, e.g. triphenylamine
-
- 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
- H10K85/631—Amine compounds having at least two aryl rest on at least one amine-nitrogen atom, e.g. triphenylamine
- H10K85/633—Amine compounds having at least two aryl rest on at least one amine-nitrogen atom, e.g. triphenylamine comprising polycyclic condensed aromatic hydrocarbons as substituents on the nitrogen atom
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31652—Of asbestos
- Y10T428/31663—As siloxane, silicone or silane
Definitions
- the present invention relates to a light emitting material and a method for producing the same, and more particularly, to an organic light emitting material containing an organic molecule exhibiting fluorescence or phosphorescence and a method for producing the same.
- organic light-emitting materials can be classified into low-molecular and high-molecular materials.
- the former low-molecular light-emitting materials include aromatic fluorescent dyes such as anthracenes, benzenes, and biphenyls, and aluminum complexes.
- the latter polymeric light-emitting materials include polyphenylenevinylenes, polyfluorenes, polythiophenes, and dye-containing non-conjugated polymers (for example, Kazuyuki Horie et al.
- the present invention has been made in view of the above-mentioned problems of the related art, and improves luminous efficiency, suppresses a decrease in luminous luminance due to concentration quenching, enables high-luminance luminescence, and further improves heat resistance.
- An object is to provide an excellent long-life organic light emitting material.
- the present inventors have conducted intensive studies to achieve the above object, and as a result, a polymer obtained by polymerizing a specific organic silicon compound containing a fluorescent or phosphorescent organic molecule such as benzene or biphenyl is obtained. Surprisingly, it has been found that the luminous efficiency is improved, the luminous brightness is reduced by the concentration quenching, and high-luminance luminescence is possible.
- the invention was completed.
- the luminescent material of the present invention has the following general formula (1):
- X represents an organic molecule that exhibits fluorescence or phosphorescence
- R 1 represents at least one selected from the group consisting of a lower alkoxy group, a hydroxyl group, an aryl group, an ester group, and a halogen atom
- 2 represents at least one selected from the group consisting of a lower alkyl group and a hydrogen atom
- n represents an integer of 1 to 3
- m represents an integer of 1 to 4.
- organosilicon compound according to the present invention a compound in which R 1 is a lower alkoxy group and Z or a hydroxyl group, and 11 is 3 is preferable.
- organic silicon compound according to the present invention it is more preferable that R 1 is a lower alkoxy group, n is 3 and m is 2, and in this case, the weight of the organic silicon compound is The union has the following general formula (2):
- X represents an organic molecule that exhibits fluorescence or phosphorescence.
- organic molecule exhibiting fluorescence or phosphorescence those having a difference in energy between a singlet excited state or a triplet excited state and a ground state of 40 to 140 kca 1 / mo 1 are preferable. Les ,.
- the polymer of the organic silicon compound has a periodic structure of 511 m or less due to a regular arrangement of the organic molecules exhibiting the fluorescence or the phosphorescence. But preferred.
- the luminescent material of the present invention may further comprise another luminescent compound (preferably a phosphorescent material), and such another luminescent compound is adsorbed, bound, filled and adsorbed on the luminescent material. It is preferable that the material is selected from the group consisting of the mixture and is in a misaligned state.
- another luminescent compound preferably a phosphorescent material
- the material is selected from the group consisting of the mixture and is in a misaligned state.
- the polymer of the organic silicon compound is a porous material.
- the mesoporous material has a center pore diameter of 1 to 30 nm.
- the porous body may further include another light-emitting compound (preferably a phosphorescent material), and such another light-emitting compound absorbs, binds, fills, and mixes with the porous body. It is preferable to be in any state selected from the group consisting of: Further, in this case, the porous body may further include a surfactant.
- the polymer of the organic silicon compound is preferably in the form of particles having an average particle diameter of 1 ⁇ or less or a thin film having an average thickness of 1 ⁇ or less. Alternatively, it may be a layered material formed by laminating nanosheets each having a thickness of 10 nm or less. Further, the light emitting material of the present invention may further include a charge transport material in addition to the polymer of the organic silicon compound.
- the method for producing a luminescent material of the present invention includes a step of obtaining a luminescent material by polymerizing an organic silicon compound represented by the general formula (1) in the presence of another luminescent compound. is there.
- the organic silicon compound may be polymerized in the presence of the other light emitting compound and a surfactant.
- the luminous efficiency is improved, the decrease in luminous luminance due to concentration quenching is suppressed, high-luminance luminescence is possible, and the heat resistance is excellent and the life is long.
- the present inventors speculate as follows. In other words, conventional organic molecules that exhibit fluorescence or phosphorescence (hereinafter referred to as “fluorescent molecules”) are quenched due to the interaction between molecules and do not emit light efficiently at high concentrations, so the brightness by increasing the concentration is high. There was a limit to improvement.
- the interaction between molecules is caused by the chemical bonding of the hydrophobic fluorescent molecule and the hydrophilic silicon-containing group. — ⁇ interaction) to form a unique array structure in which fluorescent molecules and silica are regularly arranged.
- the concentration of the fluorescent molecule usually causes concentration quenching. It is speculated that the quenching is suppressed due to the unique arrangement of the fluorescent molecules even in the high concentration state, and each fluorescent molecule is assumed to emit light efficiently.
- the fluorescent molecule is chemically bonded to silica, which is an inorganic substance having excellent stability, so that the heat resistance of the fluorescent molecule is improved, and the light emission is stable over a long period of time.
- silica which is an inorganic substance having excellent stability
- FIG. 1 is a drawing showing various low-molecular-weight hole transport materials.
- FIG. 2 is a graph showing the X-ray diffraction patterns of Ph-HM-c obtained in Example 1 and Ph-Si obtained in Example 2.
- FIG. 3 is a graph showing N 2 adsorption isotherms of the samples obtained in Examples 1 to 3.
- FIG. 4 is a graph showing an X-ray diffraction pattern of Ph-H band-a obtained in Example 3.
- FIG. 5 is an SEM photograph of Ph-Si obtained in Example 2.
- FIG. 6 is a graph showing the visible absorption spectrum of each sample obtained in Examples 1 to 3.
- FIG. 7 is a graph showing the fluorescence spectrum of each sample obtained in Examples 1 to 3.
- FIG. 8 is a graph showing an X-ray diffraction pattern of BiPh-H bandage_c obtained in Example 4.
- FIG. 9 is a graph showing an X-ray diffraction pattern of BiPh-HMM-cs obtained in Example 5. .
- FIG. 10 is a graph showing the N 2 adsorption isotherm of BiPh-HMM-c obtained in Example 4.
- FIG. 11 is a graph showing an X-ray diffraction pattern of BiPh-Si_Base obtained in Example 6.
- FIG. 12 is a graph showing an X-ray diffraction pattern of BiPh-Si-Acid obtained in Example 7.
- FIG. 13 is a SEM photograph of BiPh-Si-Base obtained in Example 6.
- FIG. 14 is a graph showing the X-ray diffraction pattern of BiPh-H-a obtained in Example 8. '
- FIG. 15 is a graph showing an X-ray diffraction pattern of BiPh-H band-a-s obtained in Example 9.
- FIG. 16 is a graph showing a nitrogen adsorption isotherm of BiPh_H fraction-a obtained in Example 8.
- FIG. 17 is a graph showing the visible absorption spectrum of BiPh-HMM-a obtained in Example 8.
- FIG. 18 is a graph showing the visible absorption spectrum of BiPh-H fraction-c obtained in Example 4.
- FIG. 19 is a graph showing the fluorescence spectrum of each sample obtained in Examples 4 to 9.
- FIG. 20 is a graph showing an X-ray diffraction pattern of BiPh-HMMMc-s-film obtained in Example 10.
- FIG. 21 is a graph showing a fluorescent spectrum of the BiPh-HMMc-s-film obtained in Example 10.
- FIG. 22 is a photograph showing a light emitting state of a thin film of BiPh-HMMMc-s-film obtained in Example 10.
- FIG. 23 is a photograph showing the light emission state of the thin films of Samples 1 to 3 obtained in Examples 11 to 13. .
- FIG. 24 is a graph showing the fluorescence spectrum of each of Samples 1 to 3 obtained in Examples 11 to 13.
- FIG. 25 shows the luminescent material powder obtained in Example 5 and the luminescent material powders of Comparative Examples 1 to 3. 5 is a graph showing the fluorescent spectrum of FIG.
- FIG. 26 is a graph showing the fluorescence spectra of the thin films of the luminescent materials obtained in Example 10 and the thin films of the luminescent materials of Comparative Examples 1 to 3.
- FIG. 27 is a graph showing the fluorescence spectrum of the BTEB solution.
- FIG. 28 is a graph showing a fluorescent spectrum of the BTEBP solution.
- FIG. 29 is a graph showing the fluorescence spectrum of the benzene solution.
- FIG. 30 is a graph showing the fluorescent spectrum of the biphenylene solution.
- FIG. 31 is a graph showing the relationship between the maximum fluorescence intensity and the concentration.
- FIG. 32 is a graph showing the result of plotting the maximum emission wavelength ( ⁇ ) against the concentration.
- FIG. 33 is a graph showing the fluorescent spectrum of the solution of the luminescent material and the luminescent material obtained in Examples 5 and 9.
- FIG. 34 is a graph showing a change in the concentration of the fluorescence intensity of the luminescent material and the luminescent solution obtained in Examples 5 and 9.
- FIG. 35 is a graph showing a powder X-ray diffraction pattern of the layered phenylsilicone composite material obtained in Example 14.
- FIG. 36 is a graph showing 29 Si MAS Ra R spectrum of the layered phenyl sili composite material obtained in Example 14.
- FIG. 37 is a schematic diagram showing the structure of the layered phenylsilica composite material obtained in Example 14.
- FIG. 38 is a graph showing a fluorescence spectrum of the layered phenylsilica composite material obtained in Example 14.
- FIG. 39 is a graph showing a powder X-ray diffraction pattern of the layered bifluoric silica composite material obtained in Example 15.
- FIG. 40 is a graph showing a powder X-ray diffraction pattern of a layered biphenylsilicone composite material obtained in Example 15 in which toluene is dropped.
- FIG. 41 is a graph showing the fluorescent spectrum of the layered bifunny-silicone composite material obtained in Example 15.
- FIG. 42 shows the X-ray diffraction patterns of each sample obtained in Examples 16 to 18 and Ph-HMM-c obtained in Example 1.
- FIG. 43 is a graph showing an N 2 adsorption isotherm of Ph-HMM_c obtained in Example 1.
- FIG. 44 is a graph showing an N 2 adsorption isotherm of the sample obtained in Example 16.
- FIG. 45 is a graph showing an N 2 adsorption isotherm of the sample obtained in Example 17.
- FIG. 46 is a graph showing an N 2 adsorption isotherm of the sample obtained in Example 18.
- FIG. 47 is a graph showing the 13 C-CP-R results of the sample obtained in Example 18.
- FIG. 48 is a graph showing the result of 29 Si-MAS-employment of the sample obtained in Example 18.
- FIG. 49 is a graph showing the absorption spectrum of Ph-HMM-c obtained in Example 1.
- FIG. 50 is a graph showing the absorption spectrum of the sample obtained in Example 16.
- FIG. 51 is a graph showing the absorption spectrum of the sample obtained in Example 17.
- FIG. 52 is a graph showing the absorption spectrum of the sample obtained in Example 18.
- FIG. 53 is a graph showing a calibration curve of BTEA.
- FIG. 54 is a graph showing the absorption spectrum of BTEA with a monomer.
- FIG. 55 is a graph showing the fluorescence spectra of Ph-HMM and BTEA at an excitation wavelength of 260 nm.
- FIG. 56 is a graph showing the results of measuring the fluorescence spectrum of each sample obtained in Examples 16 to 18 at an excitation wavelength of 260 nm. .
- FIG. 57 is a graph showing the X-ray diffraction patterns of Ph-HMM-c, BiPh-HMM_c, Al-TPPEt / Ph-HMM, and Al_TPPEt / BiPh-HMM.
- FIG. 58 is a graph showing the UV-vis spectrum of Al-TPP & t / Ph-HMM.
- FIG. 59 is a graph showing the UV-vis spectrum of A !!-TPPEt / BiPh-HMM.
- FIG. 60 is a graph showing the fluorescence spectrum of A !!-TPPEt / Ph-HMM.
- FIG. 61 is a graph showing a fluorescence spectrum of Al-TPPEt / BiPh-HMM. 2005/006440
- Figure 62 is a photograph showing the emission state of the Al-TPPEt powder.
- FIG. 63 is a photograph showing the light emission state of Al-TPPEt / Ph-H powder.
- FIG. 64 is a photograph showing the light emission state of the Ph-HMM-c powder.
- FIG. 65 is a photograph showing an emission state of the BiPh-H ⁇ -c powder.
- FIG. 66 is a photograph showing the light emission state of A1-TPPEt / BiPh-HMM powder.
- FIG. 67 is a graph showing an X-ray diffraction pattern of BiPh-HMMc_s-film2 obtained in Example 22.
- FIG. 68 is a graph showing the fluorescence and excitation spectra of BiPh-HMMc-s-film2 obtained in Example 22.
- FIG. 69 is a graph showing an X-ray diffraction pattern of the Ph_H film obtained in Example 23 before and after firing.
- FIG. 70 is a graph showing X-ray diffraction patterns of the BiPh-HMM film obtained in Example 24 before and after firing.
- FIG. 71 is a graph showing the fluorescence spectrum of the Ph-H film obtained in Example 23 before and after firing.
- FIG. 72 is a graph showing the fluorescence spectrum of the BiPh-HMM film obtained in Example 24 before and after firing.
- No. 73 is a graph showing the fluorescence and excitation spectrum of the BiPh-acid-film obtained in Example 25.
- FIG. 74 is a graph showing the UV spectrum of the BiPh-acid-film obtained in Example 25.
- FIG. 75 shows the results obtained in Example 26. This is a graph showing the line diffraction pattern of 1-11 marauder ⁇ -; ⁇ 1111. .
- FIG. 76 is a graph showing the fluorescence and excitation spectrum of the TPh-HMMMc-s-film obtained in Example 26.
- FIG. 77 shows the fluorescence and excitation spectra of the TPh-acid-film obtained in Example 27. This is a graph.
- FIG. 78 is a graph showing an X-ray diffraction pattern of Pyr-HMM css-film obtained in Example 28. '
- FIG. 79 is a graph showing the fluorescence and excitation spectrum of the Pyr-paint CS-film obtained in Example 28.
- FIG. 80 is a graph showing the fluorescence and excitation spectrum of the Pyr-acid-film obtained in Example 29.
- FIG. 81 is a graph showing the UV spectrum of the Pyr-acid-film obtained in Example 29.
- FIG. 82 is a graph showing an X-ray diffraction pattern of Ant-HMMc_s_film obtained in Example 30.
- FIG. 83 is a graph showing the fluorescence and excitation spectrum of the Ant-HMMc-s-film obtained in Example 30.
- FIG. 84 is a graph showing the UV spectrum of the Ant-HMMc-s-film obtained in Example 30.
- FIG. 85 shows the fluorescence and excitation spectrum of octafluorobiphenyl silica obtained in Example 31.
- FIG. 86 shows the fluorescence and excitation spectrum of Tph-HMM-acid obtained in Example 32. It is a graph showing a torque.
- FIG. 87 is a graph showing the fluorescence and excitation spectrum of Pyr-HMM_acid obtained in Example 33. .
- FIG. 88 is a graph showing the fluorescence and excitation spectra of Ant-HMM-Acid obtained in Example 34. .
- FIG. 89 is a graph showing the fluorescence and excitation spectrum of Tph-acid obtained in Example 35.
- FIG. 90 is a graph showing the fluorescence and excitation spectra of Pyr-acid obtained in Example 36. 05 006440
- FIG. 91 is a grab showing an X-ray diffraction pattern of Sample 1 (BiPh-HMM powder) obtained in Example 37.
- FIG. 92 is a graph showing an X-ray diffraction pattern of Sample 2 (F1 (0.5 rag) / BiPh-H powder) obtained in Example 37.
- FIG. 93 is a graph showing an X-ray diffraction pattern of Sample 5 (Fl (5 rag) / BiPh-Haw powder) obtained in Example 37.
- FIG. 94 is a graph showing the fluorescence spectra of Samples 1 to 5 obtained in Example 37.
- FIG. 95 is a schematic structural diagram of the sample (Fl / BiPh-H banded powder) obtained in Example 37.
- FIG. 96 is a graph showing an X-ray diffraction pattern of Sample 2 (Fl (2 mol%) / BiPh-H thin film) obtained in Example 38.
- FIG. 97 is a graph showing the fluorescence spectra of Samples 1 to 3 obtained in Example 38.
- FIG. 98 is a graph showing the excitation wavelength dependence of the fluorescence spectrum of Sample 2 obtained in Example 38.
- Figure 99 shows the fluorescence spectra of each sample (rhodamine / BiPh-HMM thin film) obtained in Example 39.
- FIG. 100 is a graph showing a fluorescence spectrum of each sample (pyrene ZBiPh-H band thin film) obtained in Example 40.
- FIG. 101 is a graph showing absorption spectra of ethanol solutions of EuCl 3 and TbCl 3 .
- FIG. 102 is a graph showing a fluorescence spectrum of EuCl 3 / BiPh-HMM-film obtained in Example 41.
- FIG. 103 is a graph showing a fluorescence spectrum of TbCl 3 / BiPh-H-film obtained in Example 42.
- FIG. 104 is a graph showing an X-ray diffraction pattern of BiPh- ⁇ M-film.
- FIG. 105 is a graph showing an X-ray diffraction pattern of tamarin (3 mol ° /.)/ BiPh-H-film obtained in Example 43.
- FIG. 106 is a graph showing the fluorescence spectrum of a coumarin / BiPh_HMM-film into which various amounts of coumarin have been introduced.
- Figure 107 shows BiPh-HMM-film, coumarin in ethanol solution and coumarin.
- FIG. 108 is a graph showing the fluorescence spectrum of a tamarin / BiPh composite membrane into which various amounts of tamarin were introduced.
- FIG. 109 is a graph showing excitation spectra of the Ir (ppy) 3 / BiPh-HMM thin film, the Ir (ppy) 3 / PMMA thin film, and the P picture A thin film.
- FIG. 110 is a graph showing a phosphorescence spectrum of each Ir (ppy) 3 / BiPh-HMM thin film obtained in Example 45.
- FIG. 11 shows the fluorescence spectra of the mixture of R6G and BiPh-HMM obtained in Examples 46 to 48.
- FIG. 112 is a graph showing a fluorescence spectrum of a mixture of DANS and BiPh- ⁇ M obtained in Example 49.
- FIG. 13 shows the mixture of the coumarin obtained in Examples 51 to 53 and BiPh-HMM and the fluorescence spectrum of BiPh_HMM_c2_s obtained in Example 50.
- FIG. 114 shows the mixture of coumarin obtained in Examples 51 to 53 and BiPh-HMM and the fluorescence spectrum of BiPh-HMM-C2-s obtained in Example 50. It is a graph.
- FIG. 115 is a graph showing the fluorescence spectrum of the BiPh-H awake thin film into which rhodamine and coumarin obtained in Example 54 have been introduced.
- FIG. 116 is a photograph showing a state in which the BiPh-HMM thin film into which rhodamine and coumarin obtained in Example 54 have been introduced emits white light.
- FIG. 117 shows an X-ray diffraction pattern of BiPh-HMM-a-film obtained in Example 55. 2005/006440
- FIG. 118 is a scanning electron micrograph of the bifuunilsil force particles synthesized in Example 56.
- FIG. 119 is a scanning electron micrograph of the bifunyl silicic acid fine particles synthesized in Example 56.
- FIG. 120 is a graph showing the X-ray diffraction pattern of the biphenyl silicic acid fine particles synthesized in Example 56.
- FIG. 121 is a graph showing the absorption spectrum of biphenyl silica fine particles / 2-propanol dispersion in the powder state of the biphenyl silica fine particles synthesized in Example 56.
- FIG. 123 is a graph showing a fluorescence spectrum of a biphenylsilica fine particle / 2-propanol dispersion.
- Figure 124 shows the absorption spectrum of the 9,10-diphenylanthracene / cyclohexane solution.
- Figure 125 shows the fluorescence spectrum of the 9,10-diphenylanthracene / cyclohexane solution.
- FIG. 126 is a graph showing the relationship between the integrated fluorescence intensity and the absorbance.
- FIG. 127 is a graph showing the absorption spectrum of the BTEBP / 2-propanol solution.
- FIG. 128 is a graph showing a fluorescence spectrum of the BTEBP / 2-propanol solution.
- the luminescent material of the present invention has the following general formula (1): Characterized by comprising a polymer of an organic silicon compound represented by the formula:
- X represents an organic molecule that exhibits fluorescence or phosphorescence (hereinafter, referred to as “fluorescent molecule”).
- fluorescent molecule includes a singlet excited state or a triplet excited state and a ground state. It is preferable that the difference in energy between the two is 40 to 140 kca1 / mo1.
- the wavelength of fluorescence or phosphorescence tends to be too long, making the use difficult.
- the energy difference exceeds the upper limit the wavelength of fluorescence or phosphorescence tends to be too short, making the use difficult. is there.
- fluorescent molecule examples include benzene, bipheninole, benzophenone, phenolelene, anthraquinone, naphthalene, acenaphthene, canolebazonole, trifenenylene, phenanthrene, atarizine, azulene, chrysene, pyrene, Examples include anthracene, perylene, biacetinole, benzinole, funoleolecein, eosin, rhodamine B, and fluorinated compounds thereof. Of these, benzene, bipheninole, naphthalene, anthracene, triffeenylene and pyrene are preferred.
- a lower alkoxy group and / or a hydroxyl group are preferable from the viewpoint that the condensation reaction is easily controlled.
- R 1 When a plurality of R 1 are present in the same molecule, R 1 may be the same or different.
- R 2 represents at least one selected from the group consisting of a lower alkyl group ⁇ preferably an alkyl group having 1 to 5 carbon atoms (R—) ⁇ and a hydrogen atom. When a plurality of R 2 are present in the same molecule, R 2 may be the same or different.
- n and (3-n) in the general formula (1) are the numbers of R 1 and R 2 bonded to the silicon atom (S i), respectively, and such n is 1 to 3
- the luminescent material of the present invention is obtained by polymerizing an organic silicon compound represented by the above general formula (1), and one kind of monomer is used as the organic silicon compound represented by the above general formula (1). Polymerization may be performed, or two or more monomers may be copolymerized. Further, the light emitting material of the present invention comprises: (i) an organic silicon compound represented by the above general formula (1); and an organic silicon compound wherein X in the above general formula (1) is an organic molecule which does not show fluorescence or phosphorescence. And (ii) the above general formula
- the organosilicon compound represented by the general formula (1) and the monomer to be used for copolymerization as required are collectively referred to as “monomer”.
- Such organic molecules that do not exhibit fluorescence or phosphorescence include, but are not limited to, monovalent or higher valent organic groups that result from the removal of one or more hydrogen atoms from hydrocarbons such as alkanes, alkenes, anolequines, and cycloalkanes.
- monomers other than the organosilicon compound represented by the above general formula (1) include alkoxysilane and alkyl Aluminium, titanium, magnesium, dinoleconium, tantanole, niobium, molybdenum, covanolate, nickel, gallium, beryllium, yttrium, lanthanum, hafnium, tin, lead, and the like.
- Metal compounds containing inorganic components such as vanadium and boron may be used.
- the proportion of the organic silicon compound represented by the above general formula (1) in all the monomers to be copolymerized should be 30% or more. Is preferred.
- the organosilicon compound represented by the above general formula (1) is polymerized, the portion of the general formula (1) where R 1 is bonded to Si is subjected to hydrolysis and subsequent condensation reaction to form a siloxane. The bond (S i — O — S i) is formed. At this time, some may be silanol groups (Si_OH), but the formation of silanol groups does not affect the light emission characteristics.
- the reaction formula is the following general formula (3):
- X represents an organic molecule exhibiting fluorescence or phosphorescence
- p represents an integer corresponding to the number of repeating units.
- the number of p is not particularly limited, but is generally preferably in the range of about 10 to 100.
- the polymer obtained by polymerizing the above-mentioned monomer is an organic silica-based material having a skeleton formed mainly of a fluorescent molecule (X), a silicon atom (S i) and an oxygen atom (o).
- X fluorescent molecule
- Si silicon atom
- o oxygen atom
- a silicon atom bonded to a fluorescent molecule is bonded via an oxygen atom It has a highly crosslinked network structure based on a modified skeleton (one X—Si—o—).
- the method of polymerizing the monomer is not particularly limited, but it is preferable to use water or a mixed solvent of water and an organic solvent as a solvent, and to hydrolyze and condense the monomer in the presence of an acid or base catalyst.
- the organic solvent preferably used here include alcohol, acetone and the like.
- the content of the organic solvent is preferably about 5 to 50% by weight.
- the acid catalyst used include mineral acids such as hydrochloric acid, nitric acid, and sulfuric acid.
- the solution is acidic with a pH of 6 or less (more preferably 2 to 5).
- the base catalyst used include sodium hydroxide, ammonium hydroxide, potassium hydroxide, and the like.
- the solution has a pH of 8 or more (more preferably 9 to 11). ) Is preferred.
- the content of the monomer in such a polymerization step is preferably about 0.055 to 0.333 mol1 / L in terms of silicon concentration.
- various conditions (temperature, time, etc.) in the polymerization step are not particularly limited, and are appropriately selected depending on a monomer to be used, a target polymer, and the like, but are generally 0 to 100 ° C.
- the organic silicon compound is subjected to hydrolysis and condensation at a temperature of about 1 to 48 hours.
- the luminescent intensity tends to be greatly improved.
- the mechanism by which the emission intensity is significantly improved by forming the periodic structure is not necessarily clear, but the present inventors speculate as follows. That is, in general, when a fluorescent molecule is in a high concentration (high density) state, concentration quenching occurs, and luminous efficiency decreases. However, when the fluorescent molecules are regularly arranged as described above, a uniform band structure is formed and maintained, efficient light emission is possible even at a high concentration, and the occurrence of concentration quenching is more sufficiently suppressed. The present inventors speculate.
- Suitable synthesis conditions for forming such a periodic structure resulting from the regular arrangement of the fluorescent molecules include the following conditions.
- an organic group (X) that increases the interaction between the monomers that is, benzene, biphenyl, naphthalene, and anthracene.
- the pH of the solution is preferably from 1 to 3 (acidic) or from 10 to 12 (basic), more preferably from 10 to 12 (basic).
- Such a periodic structure can be obtained according to the method described in S. Inagaki et al., Nature, (2002) Vol. 416, pp. 304-307.
- a polymer obtained by controlling synthesis conditions when polymerizing the monomer or by mixing a surfactant with a raw material can form pores.
- the solvent becomes a ⁇ type
- the micelle or liquid crystal structure of the surfactant becomes a ⁇ type, and a porous body having pores is formed.
- the central pore diameter is a curve (fine) obtained by plotting the value (dV / dD) obtained by differentiating the pore volume (V) by the pore diameter (D) against the pore diameter (D).
- This is the pore diameter at the maximum peak of the pore size distribution curve) and can be determined by the method described below. That is, the porous body is cooled to the temperature of liquid nitrogen (196 ° C), nitrogen gas is introduced, the adsorption amount is determined by the constant volume method or the gravimetric method, and then the pressure of the nitrogen gas introduced is Gradually increase, plot the amount of nitrogen gas adsorbed against each equilibrium pressure, and obtain the adsorption isotherm. Using this adsorption isotherm, a pore size distribution curve can be obtained by a calculation method such as the Cranston-I 11 k1 ay method, the Pollimore-Hea 1 method, or the BJH method.
- Such a mesoporous body preferably contains 60% or more of the total pore volume in a range of 40% of the soil of the central pore diameter in the pore diameter distribution curve.
- a mesoporous material satisfying this condition means that the pore diameter is very uniform.
- the specific surface area of the mesoporous material is not particularly limited, but is preferably 70 Om 2 Zg or more. The specific surface area can be calculated as the BET specific surface area from the adsorption isotherm using the BET isotherm equation.
- such a mesoporous material preferably has one or more peaks at a diffraction angle corresponding to a d value of 1.5 to 30.5 nm in an X-ray diffraction (XRD) pattern.
- the X-ray diffraction peak means that the sample has a periodic structure with d value corresponding to the peak angle. Therefore, the presence of one or more peaks at the diffraction angle corresponding to the d value of 1.5 to 30.5 nm means that the pores are regularly arranged at intervals of 1.5 to 30.5 nm. Means you are.
- the pores of such a mesoporous body are formed not only on the surface of the porous body but also inside the porous body.
- the arrangement state (pore arrangement structure or structure) of the pores in the porous body is not particularly limited, but may be a 2 d-hexagonal structure, a 3 d-hexagonal structure or T JP2005 / 006440
- a pore arrangement structure may have a pore order structure of a disorder.
- the porous body has a hexagonal pore arrangement structure means that the arrangement of the pores is a hexagonal structure (S. Inagaki et al.,
- the porous body has a cubic pore arrangement structure means that the arrangement of the pores is a cubic structure.
- the porous body has a disordered pore arrangement structure means that the arrangement of the pores is irregular (PT Tanev et al., Science, -267, p. 865 (1995), SA Bagshaw et al., Science, 269, p. 1242 (1995); R. Ryoo et al., J. Phys. Chem., 100, p. 17718 (1996)).
- the cubic structure preferably has Pm-3n, la-3d, Im-3m or Fm-3m symmetry. The symmetry is determined based on the notation of the space group.
- the light emitting material of the present invention when the light emitting material of the present invention has pores, it becomes possible to adsorb (physical adsorption and Z or chemical bonding) other light emitting compounds described later on the porous body. In this case, energy transfer from the above-described fluorescent molecule to another luminescent compound occurs, and light emission having a wavelength different from the intrinsic emission wavelength of the fluorescent molecule occurs. Thereby, it becomes possible to emit multicolor light according to the combination of the fluorescent molecule and the luminescent compound to be introduced.
- the above-mentioned periodic structure is formed on the pore wall of such a porous body, energy transfer from fluorescent molecules in the pore wall to other luminescent compounds can occur more efficiently, and different wavelengths can be obtained. Strong light emission can be achieved.
- a charge transporting material described below into the pores of such a porous body, it becomes possible to cause the fluorescent molecules in the pore walls to emit light more efficiently.
- a surfactant to the monomer of the present invention to perform polycondensation. This is because, when the monomer is polycondensed, the added surfactant becomes a ⁇ type to form mesopores.
- the surfactant used for obtaining the mesoporous material is not particularly limited, and may be any of cationic, anionic, and nonionic.
- Chloride such as alkyltrimethylammonium, alkyltriethylammonium, dialkyldimethylammonium, benzylammonium, bromide, iodide or hydroxide; fatty acid salt, alkylsulfonate, alkylphosphate, polyethylene Oxide nonionic surfactants, primary alkylamines and the like.
- These surfactants may be used alone or as a mixture of two or more.
- the polyethylene oxide nonionic surfactant includes a polyethylene oxide nonion having a hydrocarbon group as a hydrophobic component and a polyethylene oxide as a hydrophilic portion.
- a surfactant for example, those represented by the general formula C n H 2n + 1 (OCH 2 CH 2 ) m OH, wherein n is 10 to 30, and m is 1 to 30, can be suitably used.
- an ester of a fatty acid such as oleic acid, lauric acid, stearic acid, or palmitic acid with sorbitan, or a compound in which polyethylene oxide is added to these esters can also be used.
- a trialkyl copolymer type polyalkylene oxide can also be used.
- examples of such a surfactant include those composed of polyethylene oxide (EO) and polypropylene oxide (P ⁇ ) and represented by the general formula (E ⁇ ) x (PO) y (EO) x .
- x and y represent the number of repetitions of EO and PO, respectively, where X is from 5 to: L10, y is preferably from 15 to 70, X is from 13 to 106, and y is from 29 to 70 Les, which is more preferred.
- the above triblock copolymers include (EO) ig (PO) 29 (EO) 19 , (EO) 13 (PO) 70 (EO) 13 , (EO) 5 (PO) 70 (EO) 5 , (EO) 13 (PO) 30 (EO) 13 ⁇ (EO) 20 (PO) 30 (EO) (EO) (EO) 26 (PO) 39 (EO) 26 , (EO) 17 (PO) 56 (EO) 17 , (EO) 17 (PO) 58 (EO) 17 , (EO) 20 (PO) 70 (EO) 20 , (EO) 8 . (PO) so (EO) 8 . , (EO) 106 (PO) 7 .
- a star die block copolymer in which two polyethylene oxide (EO) chains and one polypropylene oxide (PO) chain are bonded to two nitrogen atoms of ethylenediamine, respectively, can be used.
- Such star die Proc copolymer the general formula ((EO) x (PO) y) 2 NCH 2 CH 2 N ((PO) y (EO) x) those represented by 2.
- x and y represent the number of repetitions of EO and PO, respectively, where X is preferably 5 to 110, y is preferably 15 to 70, x is 13 to 106, and y is 29 to 70. It is more preferable to be.
- alkyl trimethyl ammonium - ⁇ beam [C p H 2p + 1 N (CH 3) 3] salt (preferred verses Is preferably a halide salt.
- the alkyl group in the alkyltrimethylammonium preferably has 8 to 22 carbon atoms.
- Such materials include octadecyltrimethylammonium chloride, hexadecyltrimethylammonium chloride, tetradecyltrimethylammonium chloride, dodecyltrimethylammonium bromide, and decyltrimethylammonium bromide. And octyltrimethylammonium bromide, docosyltrimethylammonium chloride and the like.
- the monomer When a mesoporous body is obtained as a polymer of the monomer, the monomer is subjected to a polymerization reaction in a solution containing the surfactant, and the concentration of the surfactant in the solution is 0.05 to lmo1 / L. It is preferable that This concentration is less than the lower limit.
- the concentration of the surfactant in the solution is 0.05 to lmo1 / L. It is preferable that This concentration is less than the lower limit.
- the surfactant contained in the mesoporous material thus obtained may be removed.
- the method for removing the surfactant include, for example, (i) a method of immersing the mesoporous body in an organic solvent having high solubility in the surfactant (eg, ethanol) to remove the surfactant. (Ii) a method of baking the mesoporous body at 300 to 100 ° C. to remove a surfactant, and (iii) immersing the mesoporous body in an acidic solution and heating the resultant to obtain a Ion exchange method in which the agent is exchanged for hydrogen ions, and the like.
- Such a mesoporous body can be obtained according to the method described in Japanese Patent Application Laid-Open No. 2001-114790.
- the merit of making the luminescent material of the present invention porous is that (i) by introducing another luminescent compound into the pore, the excitation energy of the pore wall can be efficiently converted to the luminescent compound. (Ii) the durability of the light-emitting compound introduced into the pores is improved, and (ii) the refractive index of the light-emitting layer is reduced. There is an advantage that the light extraction efficiency can be improved. For example, when an ITO electrode layer and a light-emitting layer are formed on a glass substrate, light emitted from the light-emitting layer is emitted from the interface between the light-emitting layer and the IT0 layer, the interface between the IT0 layer and the glass substrate, or the glass.
- the light is reflected at the interface between the substrate and air, and the efficiency of taking out light is reduced. It is generally said that the light extraction efficiency is higher when the refractive index of the light emitting layer is closer to the refractive index of air, and the refractive index can be made closer to air by making the light emitting material porous.
- Light-emitting material further comprising another light-emitting compound
- the structure of the light-emitting material of the present invention further comprising another light-emitting compound is not particularly limited. However, in the non-porous or porous light-emitting material of the present invention, other light-emitting compounds may be used.
- Adsorption means that a non-porous luminescent material has a luminescent compound attached to the surface of particles or a film of the luminescent material, or a porous luminescent material has pores inside or outside the pores of the luminescent material.
- Bonding refers to the case where this attachment involves a chemical bond.
- Filling is a state in which another luminescent compound is present in the pores of the porous luminescent material, and in this case, it may not be attached to the inner surface of the pores.
- the pores may be filled with a substance other than another luminescent compound, and the substance may contain another luminescent compound.
- Substances other than other luminescent compounds include surfactants.
- the term “mixed” refers to a state in which a non-porous or porous luminescent material is physically mixed with another luminescent compound. At this time, the luminescent material and other
- Another substance other than the luminescent compound may be further mixed.
- the method further comprising another light-emitting compound there is a method of mixing a non-porous or porous light-emitting material with another light-emitting compound. At this time, if other light-emitting compounds are dissolved in an appropriate solvent and then mixed, more uniform mixing can be achieved, and light can be emitted efficiently.
- the amount of the other light-emitting compound is not particularly limited, but is 1 to 10 monoles based on the monomer. /.
- the energy of the skeleton can be sufficiently transferred to the light-emitting compound by adding carbon.
- the skeleton composed of the monomer polymer can efficiently absorb light and efficiently transfer the energy to the other luminescent compound. Emission of different wavelengths based on other luminescent compounds can be obtained.
- the skeleton composed of the polymer of the monomer serves as a light-collecting antenna, and the collected light energy is intensively injected into another luminescent compound. As a result, high efficiency and strong light emission can be realized.
- the method of adsorbing, binding, filling, or mixing (hereinafter sometimes collectively referred to as “attachment”) another luminescent compound to the polymer of the organic silicon compound according to the present invention is not particularly limited.
- a method of spraying, impregnating, or immersing a solution of another luminescent compound to be impregnated with the polymer, and then drying the polymer can be used. At this time, washing may be performed if necessary.
- the pressure may be reduced or deaeration may be performed.
- the other luminescent compound is attached to the surface of the polymer, filled in the pores, or adsorbed.
- the principle of multicolor emission is not the same depending on the type and composition of such an organic silicon compound and another luminescent compound, the distance and bond strength between the two compounds, the presence or absence of a surfactant, etc., but it depends on the combination. Multi-color light emission is possible.
- the other light emitting compounds to be attached to the polymer of the organic silicon compound may be used alone or in combination of two or more.
- the luminescent material of the present invention is the porous body
- the other luminescent compound is preferably adsorbed on the surface of the porous body, particularly on the inner wall surface of the pore.
- Such adsorption may be physical adsorption caused by the interaction between another light-emitting compound and a functional group present on the surface of the porous material, but one end of the other light-emitting compound may be a porous material. It may be immobilized by chemically bonding to functional groups present on the surface.
- another light-emitting compound is provided at one end with a functional group that chemically bonds to a functional group present on the surface of the porous body (for example, a trialkoxysilyl group, a dialkoxysilyl group, a monoalkoxysilyl group). , A trichlorosilyl group, etc.).
- the porous body As a method of adsorbing another luminescent compound on the porous body, the porous body is immersed in an organic solvent solution (for example, benzene, toluene, etc.) in which the other luminescent compound is dissolved, It is preferable to stir at a temperature of about 0 to 80 ° C for about 1 to 24 hours, so that other luminescent compounds are physically adsorbed to the porous body and adsorbed by Z or chemical bonding (immobilization). ).
- an organic solvent solution for example, benzene, toluene, etc.
- Such other luminescent compounds are not particularly limited, and include porphyrins, anthracenes, aluminum complexes, rare earth elements or complexes thereof, fluorescein, rhodamine (B, 6G, etc.), coumarin, pyrene, dansyl acid, Examples include photofunctional molecules such as cyanine dyes, merocyanine dyes, styryl dyes, and benzstyryl dyes.
- the amount of the other luminescent compound adsorbed on the porous body is not particularly limited, but is preferably about 20 to 80 parts by weight based on 100 parts by weight of the porous body.
- a phosphorescent material is preferable. Some of such phosphorescent materials have a larger difference between absorption and emission wavelength than fluorescent materials. Therefore, by using such a phosphorescent material, it becomes possible to efficiently absorb long-wavelength red light by absorbing short-wavelength ultraviolet light. By combining such a phosphorescent material with an organic silicon compound that emits light in the ultraviolet light region, light emission in a wide wavelength range from blue to red can be achieved.
- the phosphorescent material to be used is not particularly limited, but is preferably a material having the following structural formula capable of emitting light with relatively high efficiency at room temperature. Chemical 5
- the form of the polymer obtained by polymerizing the monomer is usually in the form of particles, but is in the form of a thin film. It is also possible to form a predetermined patterned pattern.
- the monomer is stirred in an acidic solution (an aqueous solution of hydrochloric acid, nitric acid or the like, or an alcohol solution or the like) to cause a reaction (partial hydrolysis and partial condensation reaction)
- an acidic solution an aqueous solution of hydrochloric acid, nitric acid or the like, or an alcohol solution or the like
- a sol solution containing the partial polymer is obtained. Since such a hydrolysis reaction of the monomer is likely to occur in a region where the pH is low, partial polymerization can be promoted by reducing the [H] of the system.
- the pH is preferably 2 or less, more preferably 1.5 or less.
- the reaction temperature at that time can be about 15 to 25 ° C, and the reaction time is 30 to 90 ° C.
- the sol solution is applied to a substrate by various coating methods, whereby a thin-film luminescent material can be produced.
- Various coating methods can be applied using a bar coater, a roll coater, a gravure coater, and the like, and dip coating, spin coating, spray coating, and the like are also possible.
- a sol solution by an ink-jet method a patterned light-emitting material can be formed on a substrate.
- the obtained thin film is dried by heating to about 70 to 150 ° C., and a condensation reaction of the partial polymer is advanced to form a three-dimensional bridge 2. bridge structure. Profit
- the average thickness of the resulting thin film is preferably 1 ⁇ m or less, and 0.1 to 0.1 ⁇ m.
- the film thickness exceeds 1 m, the luminous efficiency due to the electric field tends to decrease.
- the emission intensity from the thin film can be further improved by forming the periodic structure of the fluorescent molecules in the thin film. Further, by adding the above-mentioned surfactant to the sol solution, it becomes possible to form a regular pore structure in the thin film.
- the thin film is a porous body, the other luminescent compound can be adsorbed on the porous body, thereby emitting light having a wavelength different from the intrinsic emission wavelength of the fluorescent molecule. It becomes possible.
- Such a thin-film luminescent material can be obtained in accordance with the method described in JP-A-2001-310911.
- a nanosheet having a thickness of 10 nm or less is laminated. It is also possible to use a layered material. That is, when the monomer is subjected to a polymerization reaction (hydrolysis and condensation reaction) in the presence of the surfactant, 06440
- the luminescent material of the present invention is formed into a layered material in this way, it becomes possible to swell the nanosheet by immersing it in a solvent, and to easily form a thin film (preferably, a nanosheet having a thickness of 10 nm or less). Can be manufactured.
- Light emitting material further comprising a charge transport material
- the light emitting material of the present invention may further include a charge transport material in addition to the polymer obtained by polymerizing the monomer (the polymer of the organic silicon compound represented by the general formula (1)).
- charge transport materials include hole transport materials and electron transport materials.
- the former hole transport materials include poly (ethylene-dioxythiophene) Z-poly (sulfonic acid) [PED0T / PSS], polyvinyl carbazole (PVK), poly-paraphenylene vinylene derivative (PPV), and polyalkylthiophene Polymers such as derivatives (PAT), polyparaphenylene derivatives (PPP), polyfluorene derivatives (PDAF), and carbazole derivatives (PVK), and various low-molecular-weight hole transport materials shown in Figure 1 Is received.
- Examples of the latter electron transporting material include aluminum complexes, oxaziazoles, oligophenylene derivatives, phenanthroline derivatives, and silole-based compounds.
- the amount of such a charge transporting material is not particularly limited, it is generally preferable that the amount is about 20 to 80 parts by weight based on 100 parts by weight of the polymer.
- the charge transport material When such a charge transport material is combined with the thin film light emitting material, the charge transport material may be mixed with the sol solution and applied to the substrate in a thin film shape. In this way, by combining with a charge transport material, efficient light emission by electricity can be achieved. In addition, as a structure of such a mixture, even if the polymer is dispersed in a sea-island shape in a matrix of the charge transport material, the polymer and the charge transport material are uniformly dispersed. Structure.
- the charge transporting material is combined with the light emitting material which is a layered substance
- the nanosheets constituting the layered substance are separated and dispersed in the charge transporting material. This enables efficient light emission by electricity.
- the average particle size of such a particulate light emitting material is preferably 1 ⁇ m or less, and more preferably 100 nm or less at which light scattering does not occur.
- the mixed solution was dispersed in an aqueous solution over 20 minutes in an ultrasonicator to disperse the separated hydrophobic BTEB, and stirring was continued at room temperature for 20 hours.
- the solution was placed in an oil bath at 95 ° C for 20 hours.
- the resulting white precipitate was filtered and dried to obtain a mesoporous precursor (8.22 g) containing a surfactant.
- the precursor of lg was dispersed in 250 ml of ethanol to which 9 g of 36% HC1 aqueous solution was added, and the mixture was heated and stirred at 70 ° C. for 8 hours to extract the surfactant in the precursor with a solvent.
- a mesoporous phenylsilicone composite material (Ph-HMM-c) of S9g was obtained.
- Example 2 2005/006440 A mixed solution of 50 g of water and 4 g of NaOH was stirred, and 2 g of BTEB was quickly put therein. Then sonicated for 20 minutes. At this point, the solution began to turn cloudy. After stirring at room temperature for 24 hours, it became a translucent liquid. Thereafter, the mixture was refluxed at 98 ° C for 20 hours. The solution turned white and cloudy after the application of temperature, and then a precipitate gradually formed. The precipitate was filtered and dried at room temperature to obtain a phenyl-silicone composite material (Ph-Si) as a white powder.
- Ph-Si phenyl-silicone composite material
- FIG. 2 shows the X-ray diffraction patterns of the Ph-fraction M_c obtained in Example 1 and the Ph-Si obtained in Example 2.
- the peak showing the mesostructure (2D hexagonal) the peaks at 7.6, 3.8 and 2.5 nm, which indicate the periodicity of benzene in the skeleton, were confirmed.
- Ph-Si synthesized without adding a surfactant did not show a peak indicating a mesostructure, but could confirm a peak indicating the periodicity of benzene in the skeleton.
- FIG. 3 shows the N 2 adsorption isotherm of Ph-HMM-c.
- the adsorption isotherm was type IV, confirming that it had a typical mesoporous structure.
- the pore diameter and specific surface area were 3.0 nm and 835 m 2 / g, respectively.
- Ph-Si had a small specific surface area and did not have mesopores.
- Ph_HMM- C has both a pore structure and a periodic structure of benzene, and that Ph-Si does not have a pore structure, but is a material having a periodic structure of benzene in the skeleton.
- FIG. 4 shows the X-ray diffraction pattern of Ph-HMM-a synthesized under acidic conditions in Example 3.
- 20 0.5 to 1 °
- a peak indicating a mesostructure (2D hexagonal) was observed.
- no peak indicating the periodicity of benzene in the skeleton was observed.
- the N 2 adsorption isotherm shown in Fig. 3 was of type IV, confirming that it had a typical mesoporous structure.
- the pore diameter and specific surface area were 6.3 nm and 773 m 2 / g.
- Ph-HMM-a synthesized using P123 as a template under acid 1 "acid production conditions has a regular pore structure, but the periodicity of benzene in the pore skeleton is It was confirmed that there was no such thing.
- Table 1 shows the synthesis conditions and the structures of the obtained samples in Examples 1 to 3.
- FIG. 5 shows an SEM photograph of Ph-Si obtained in Example 2. It was confirmed that the particle size of this substance was about 100 nm. Thermogravimetric analysis confirmed that Ph-Si retained its structure up to 500 ° C.
- FIG. 6 shows the visible absorption spectrum of each sample obtained in Examples 1 to 3.
- Ph - HMM -.. Absorption scan Bae spectrum of a is broad, the maximum absorption wavelength (lambda was 28 5 nra also the absorption end was observed until a long wavelength of 550 ⁇ (2. 3 eV)
- Ph -HMM-c absorption soak Tol was Ph_HMM-a; same as l raax . Large absorption was observed at 285ntn and 240nm. The peak width was narrower than Ph_HMM-a, and the absorption end was 310iitn (4. OeV).
- the peak at 240 nm is considered to exist in Ph-II-a, but it is considered to overlap with 280 nm because the peak is broad.
- the absorption spectrum of Ph-Si was similar to that of Ph-HM-c, the difference in absorption spectrum was not the pore structure of each sample, but the periodicity of benzene in the skeleton. It was confirmed that they strongly depended on.
- FIG. 7 shows the fluorescence spectrum of each sample obtained in Examples 1 to 3.
- Ph-HMM-a did not show strong fluorescence in the skeleton with almost no periodicity of benzene. This can be explained by the following characteristics of Ph-HMM-a.
- the Ph-thigh M-a has a long UV absorption end and is broad, so it is expected that various energy levels exist in the excited state. Therefore, after returning to the ground state after being excited at 260 waking, it is considered that the fluorescence has weakened due to various levels. It is also possible that quenching due to excimer formation due to the low regularity of benzene in the skeleton, and that energy was emitted outside the system as heat.
- Ph-HMM_c which has a mesoporous structure and has benzene periodicity in the skeleton
- Ph-Si which has no mesopores but has benzene periodicity
- generate weak excitation light Even so, the intensity of the emitted fluorescence was strong.
- sharp absorption was observed at 280 nm by UV-vis absorption spectrum, but interestingly, an absorption wavelength of 310 nm or more was not observed. This shows that the level between the ground state and the excited state is degenerate, that is, each band is narrower. For these reasons, it was confirmed that the regular arrangement of the phenyl groups in the skeleton caused stable energy transfer in the phenyl group.
- Ph-HMM-c and Ph_Si showed fluorescence despite the weak excitation light is the quantum well effect.
- both Ph-HMM-c and Ph-Si have a ferrite group and silicate layer. Due to the formation of a regular structure aligned with each other, when excited at 260 nm, light is not applied to the silicate layer, which has high absorption energy, but acts only on the phenyl group layer. It is considered that light was confined in the phenyl base layer because the excited phenyl group layer was sandwiched between the silicate layers that did not contribute to light absorption, resulting in benzene silica emitting strong fluorescence. .
- BTEBP (1.2 g) was added to a mixed solution of P123 (0.99 g) and a 2N aqueous hydrochloric acid solution (40ral) with vigorous stirring. The mixing temperature was 30 ° C. The mixture was stirred at 30 ° C. for 20 hours, and then left at room temperature for 48 hours. Next, this mixture was placed in an autoclave made of Teflon and heated at 100 ° C. for 24 hours. The solid content was filtered and dried at room temperature to obtain a mesoporous precursor (BiPh-HMM-a-s) containing a surfactant.
- a mesoporous precursor (BiPh-HMM-a-s) containing a surfactant.
- FIG. 8 shows the X-ray diffraction pattern of BiPh-HMM-c obtained in Example 4
- FIG. 9 shows the X-ray diffraction pattern of BiPh-HMM-cs obtained in Example 5.
- FIG. 10 shows the results of measuring the N 2 adsorption isotherm in order to examine the structure in the pores of BiPh-H band-c obtained in Example 4.
- the adsorption isotherm was type IV, confirming that it had a typical mesoporous structure. ⁇
- the pore size and specific surface area of BiPi-HMM-c were 709 m 2 / g in 3.0 plates, respectively.
- FIG. 11 shows an X-ray diffraction pattern of BiPh-Si-Base obtained in Example 6, and FIG. 12 shows an X-ray diffraction pattern of BiPh-Si-Acid obtained in Example 7.
- FIG. 13 shows a SEM photograph of BiPh-Si-Base obtained in Example 6. From this SEM photograph, the primary particle diameter of BiPh-Si-Base obtained in Example 6 was very small, less than 100 nm. It was confirmed that it was small.
- Table 2 shows the synthesis conditions in Example 49 and the structure of the obtained ⁇ ;
- FIGS. 17 and 18 Visible absorption spectra of BiPh-HMM-a obtained in Example 8 and BiPh-HMM-c obtained in Example 4 are shown in FIGS. 17 and 18, respectively.
- the absorption spectrum of BiPh-HMM-a was broad, and the maximum absorption wavelength was 300 nm. The absorption end was observed up to a long wavelength of 600 nm.
- the absorption spectrum of BiPh_HMM_c showed a large absorption at 303 nm, the same as that of L of BiPh-HMM-a.
- the peak width was narrower than that of BiPh-H band-a, and the absorption end was 325 nm.
- the peak at 240 nm also exists in BiPh-HMM-a. However, it is considered that the peak is broad and overlaps with 280 nm. '
- FIG. 19 shows the fluorescence spectrum of each sample obtained in Examples 4 to 9 measured with 300 nm excitation light.
- BiPh-HMM-a a mesoporous material with a low bifidelity, did not show strong fluorescence.
- BiPh-HMM-c showed strong fluorescence.
- BiPh-HMM_c glowed blue when the sample was irradiated with excitation light (250 nm).
- biphenyl C 6 H 5 -C 6 H 5
- an increase in the fluorescence intensity of BiPh-HMM-c and redshift of the maximum emission wavelength to the visible light side were confirmed.
- the maximum emission wavelength due to the difference in ⁇ conjugation, red shift, and the increase in fluorescence intensity were also observed. This is probably because the increase in the fluorescence intensity is due to the higher quantum yield of biphenylene (0.69) than that of benzene (0.29).
- Ph_H band-a-s and BiPh- ⁇ -c-s with the surfactant still contained in the mesopores showed stronger fluorescence than the mesoporous material from which the surfactant was removed. I got it. This is thought to be because the template (surfactant) was still introduced into the mesopores, preventing oxygen from contacting the biphenyl group and suppressing quenching by oxygen.
- BiPh_Si synthesized without a template showed strong fluorescence intensity. However, the fluorescence intensity of BiPh-Si-Acid synthesized under acidic conditions was stronger than BiPh-Si_Ba.se. This is probably because BiPh-Si-Acid synthesized under acidic conditions has a higher biphenyl orientation than BiPh_Si-Base.
- the fluorescence scan Bae spectrum strong emission around the 3 8 0 nm was observed (Fig. 2 1). When the film was irradiated with 254nra light, it glowed blue (Fig. 22).
- the content (solid content) of PVK and BiPh-HMM in the obtained thin film of PVK-containing biphenyl silica composite material should be adjusted to the composition (weight basis) shown in Table 3.
- Quantitative solutions A and B are mixed to prepare a mixed solution, and the resulting mixed solution is spin-coated at a rotation speed of 3000 rpm and a rotation time of 30 s to form a uniform coating film (film thickness: 100-300 nra).
- a coat film was prepared by a dip coat method. Table 3
- FIGS. 24A and 24B show the respective fluorescence spectra of Samples 1 to 3 obtained in Examples 11 to 13.
- each light emitting material was formed by a sputtering method.
- the fluorescence spectra of the BiPh-HMM-cs) powder and the luminescent material powders of Comparative Examples 1 to 3 were measured, and the results obtained are shown in FIG.
- the excitation wavelength was 300 nm for BiPh-HMM-cs and 365 nm for CBP, NBP, and PVK.
- the excitation wavelength was 300 nm for BiPh-HMM-cs-film and 256 nm for CBP, NBP, and PVK.
- a solution was prepared by mixing dichloromethane and the monomer reagent 1,4-bistriethoxysilylbenzene (BTEB) at the respective mixing ratios shown in Fig. 27 (unit: mM), and the fluorescence spectrum of the sample solution was measured. The results obtained are shown in FIG.
- Both BTEB and BTEBP had a concentration showing a maximum in fluorescence intensity.
- the cause of the extinction before and after the maximum concentration is concentration quenching when the sample concentration is high, and the decrease in the number of molecules itself when the sample concentration is low.
- a solution was prepared by mixing dichloromethane and benzene containing no Si source as a monomer reagent at the respective mixing ratios (units: mM) shown in Fig. 28, and the fluorescent spectrum of the sample solution was measured. The results obtained are shown in FIG. 2005/006440
- a solution was prepared by mixing dichloromethane and biphenylene which does not contain a Si source as a monomer reagent at the respective mixing ratios (units: mM) shown in FIG. 30, and the fluorescence spectrum of the sample solution was measured. The results obtained are shown in FIG.
- Fig. 32 shows the result of plotting the maximum emission wavelength ( Amax ) of all the samples against the concentration.
- the maximum emission wavelengths of BTEB and BTEBP with a silica source showed a large blue shift at low concentrations. Nevertheless, the phenomenon was not seen with benzene and biphenylene. This difference is thought to be due to the formation of molecular aggregates at high concentrations because the substituents of BTEB and BTEBP have ethoxy groups.
- FIG. 34 shows a comparison between a change in the fluorescence intensity of the BTEBP solution and a change in the fluorescence intensity of the mesoporous body of the biphenyl silica composite material obtained in Examples 5 and 9.
- the density of the biphenyl group in the BiPh-HMM corresponds to the biphenyl concentration of 100 mM.
- the mesoporous body of the biphenyl-silicone composite material obtained in Example 5 in which biphenyls are regularly arranged (BiPh-HMM-C-s ) Confirmed that the sample exhibited strong fluorescence.
- BTEB BTEB (20 g, 49.67 mmol) was added at room temperature with vigorous stirring. The mixed solution was dispersed in an aqueous solution for 20 minutes in an ultrasonicator to disperse the separated hydrophobic BTEB, and stirring was continued at room temperature for 20 hours. The solid was dried and filtered to give layered Fuyunirushirika composites (9. 5 g).
- Example 15 4.5 g of ODTMA was dissolved in 50 ral of water, and 800 1 of a 6N aqueous NaOH solution was added. The solution was cooled to 4 ° C. by ice cooling, 2 g of BTEBP was added, ultrasonic treatment was performed for 20 minutes, and the mixture was stirred for 24 hours while cooling with ice. Since a white precipitate was formed, it was collected by filtration and dried to obtain a layered biphenyl silica composite material (8.9 g).
- Figure 39 shows the powder X-ray diffraction pattern of the obtained layered bifuunil silica composite material. From the XRD pattern shown in Fig. 39, it was confirmed that this sample had a layered structure with an interlayer distance of 30. OA. This interlayer distance corresponded exactly to a layered structure consisting of a surfactant monolayer and crosslinked organosilane.
- BTEA 10-Bis triethoxysilyl anthracene
- Ph-HMM-c mesoporous material of the Hunil silica composite material obtained in Example 1
- the 10H group of the pore surface was modified with BTEA by the following method. That, BTEA in toluene solvent (6 5ml) (0. l ⁇ 0 8 g.) was dissolved, therein Ph- H Keio - c a (lg) was dispersed for 5 hours at 50 ° C ⁇ did. Then, the mixture was allowed to cool to room temperature, filtered, and the obtained solid was washed with acetone and getyl ether and dried to obtain a slightly yellowish powder. In this way, the concentration of BTEA was changed for Ph-HMM_clg as shown in Table 4, and Ant / Ph-HMM0.1 (Example 16),
- Ant / Ph-HMMO. 2 (Example 17) and Ant / Ph-HMMO. 8 (Example 18) A mesoporous phenylsilicone composite material immobilized with styrene was obtained.
- FIG. 42 shows the X-ray diffraction patterns of the samples obtained in Examples 16 to 18 and the Ph-HMM-c obtained in Example 1.
- BTEA can be introduced while maintaining the pore structure and the periodicity of the skeleton.
- Example 1 Obtained Ph in Example 1 - the N 2 adsorption isotherm of the HMM-c in FIG. 4 3, the N 2 adsorption isotherm of the sample obtained in Example 1 6 4 4 In Example 1 7 FIG. 45 shows the N 2 adsorption isotherm of the obtained sample, and FIG. 46 shows the N 2 adsorption isotherm of the sample obtained in Example 18. Based on these N 2 adsorption isotherm, by a BET method specific surface area of Ph-HMM-c obtained in Example 1 6 the samples and Example 1 obtained in 1 8, the median pore diameter The pore volume was calculated by the t-plot method by the BJH method, respectively, and the obtained results are shown in Table 5. Table 5
- Example 1 Ph-HMM 935 3.0 0.36
- Example 16 Ant / Ph-HMM 0.1830 2.90.33
- Example 17 Ant / Ph-HMM 0.2 743 2.90.25
- Example 18 Ant / Ph-HMM 0.85 516 2.5 0.20 Mesoporous in all samples shown in Figs. It shows a type IV adsorption isotherm peculiar to the body, confirming that it has uniform pores with a central pore diameter of 2.5 to 3 nm.
- the specific surface area and the pore volume decreased as the amount of BTEA introduced increased, and the central pore diameter decreased. This is thought to be due to the introduction of anthracene into the pores.
- Figure 47 shows the 13 C-CP-R results for the sample of Example 18 in which BTEA was introduced into Ph_HMM.
- the peaks were similar except for the peak (*) seen near 60 ppra, and almost no peak of BTEA itself was confirmed.
- Fig. 49 shows the absorption spectrum of Ph_H band-c obtained in Example 1
- Fig. 50 shows the absorption spectrum of the sample obtained in Example 16
- Fig. 50 shows the absorption spectrum of the sample obtained in Example 16.
- the absorption spectrum of the sample thus obtained is shown in FIG. 51
- the absorption spectrum of the sample obtained in Example 18 is shown in FIG. 52.
- Benzene absorption (260-280 nm) was observed in Ph-HMM, whereas after BTEA fixation, it was 350-400 nm in addition to benzene absorption.
- the amount of BTEA immobilized on the Ph-H band was quantified by absorption spectrum.
- the spectrum was too strong to obtain an accurate spectrum. Therefore, the spectrum was measured by diluting with sulfuric acid barium sulfate. That is, first, the reflection spectrum of a sample in which Ph-HMM and barium sulfate were mixed at various ratios was measured. Ph-HMMO of 03 g was changed to 2 g of barium sulfate.At the time, two peak forces peculiar to the male group were observed at 3 ⁇ 470 to 290 nm, but at a mixing ratio higher than that, the absorption became nearly saturated and the two The peak became ambiguous. Therefore, we decided to measure the absorption spectrum by mixing 0.03 g of Ph-H with 2 g of barium sulfate.
- K / S '(1- RJ 72R 00 ⁇ wherein: among, R ⁇ Anne' maximum value of the absorption peak of anthracene (Max3 9 0nm), K is the absorption coefficient, S is shows the scattering coefficient. ⁇ Is.
- a fluorescence spectrum was measured.
- the wavelength suitable for observing the energy transfer from benzene to anthracene was confirmed as follows. In other words, from the results of the absorption spectrum of the BTEA monomer shown in Fig. 54, it was confirmed that BTEA had no absorption at 260 nm and had an anthracene-derived absorption near 450 nm. .
- FIG. 55 shows the fluorescence spectra of Ph-HMM and BTEA at an excitation wavelength of 260 nm.In the fluorescence spectrum of Ph-HMM, a large peak was observed at around 320 nm.
- the excitation wavelength of 260 nm was confirmed to be a wavelength suitable for observing the energy transfer from benzene to anthracene.
- the anthracene precursor (BTEA) was able to be introduced into the pores of the mesoporous body (Ph-HMM-c) of the phenylsilica composite material. Energy transfer to the anthracene was confirmed.
- Example 19 The mesoporous phenylsilicone composite material (Ph-HMM-c) obtained in Example 1 and the mesoporous biphenylsilicone composite material (BiPh-HMM-c) obtained in Example 4 were used. Then, the aluminum vorphyrin complex (A! L-TPPEt) (0.32 g) was dissolved in benzene (100 ml), and the mesoporous material (lg) obtained in Examples 1 and 4 was dissolved therein. In addition, A1-TPPEt was physically adsorbed to each mesoporous material by stirring at 24 ° C for 24 hours under light shielding. The obtained powder was filtered while sufficiently washing with ethanol and benzene to obtain a red powder. Al-TPPEt / Ph-HMM (Example 19),
- the UV-vis spectra are shown in FIG.
- the absorption attributed to the ⁇ - ⁇ * transition of benzene and biphenyl on the wall of the mesoporous silica was observed around 260-320 nm. Then, between 400 and 700 nm, absorption spectra of the Soret band and Q band of Al-TSPP were observed, and both were confirmed in the complex.
- the state of association of A1-TPPEt in the mesopores can be estimated from the shift of the Soret band of Al-TPPEt.
- FIG. 60 shows the fluorescent spectrum of the A1- ⁇ / Ph-HMM complex.
- Excitation of Ph-HMM-c with 260nm light showed strong fluorescence around 300nm, but was quenched in the complex with Al-TPPEt.
- FIG. 61 shows the fluorescence spectrum of the Al_TPPEt / BiPh-HM complex.
- BiPh_Hc_c when BiPh_Hc_c was excited with 300 nm light, strong fluorescence was observed at around 380 nm, but it was quenched in the complex incorporating A1-TPPEt.
- A1-TPPEt is adsorbed as H-aggregate on the wall of Ph-HMM-c, which is a de- "1. Therefore, A1-TPPEt is sufficiently present in the quenching space of Ph-HMM-c. It is considered that the energy transfer from Ph-HMM-c to A1-TPPEt occurred efficiently.
- the luminescent material of the present invention was excellent in heat resistance.
- FIGS. 71 and 72 show the fluorescence spectra of the Ph_HMM thin film and the BiPh_HMM thin film before and after firing, respectively. It was confirmed that the Ph-HMM thin film and the BiPh-H ⁇ thin film showed high intensity and fluorescence before and after firing, respectively.
- FIG. 7 shows the fluorescence spectrum (solid line, excitation wavelength: 280 nm) and excitation spectrum (dashed line, measurement wavelength: 360 nra) of the biphenyl silica thin film (BiPh-acid-film) obtained in Example 25.
- FIG. 74 shows the UV spectrum, respectively.
- Ethanol ZTHF (weight ratio 1: 1) mixed solvent lg, ion-exchanged water 21 1, 2 ⁇ hydrochloric acid solution 5 ⁇ 1 and Bri j_76 (C 18 H 37 (E0) 10 ) 0.07 g added to the solution, the following structure
- a solution obtained by dissolving BTETPO.lg having the above in a mixed solvent lg of ethanol ZTHF (weight ratio 1: 1) was added, and the mixture was stirred at room temperature for 24 hours or more to obtain a sol solution.
- a coated film (thickness: 100 to 300 nm) was obtained by a spin coating method in the same manner as in Example 22, and the obtained film was dried.
- Fig. 75 The X-ray diffraction pattern of the thin film (TPh-HMMc-S-film) of the terphenyl silica composite material obtained in Example 26 is shown in Fig. 75, and the fluorescence spectrum (solid line, excitation wavelength: 280 nm) and Fig. 76 shows the excitation spectrum (dashed line, measurement wavelength: 420 nm).
- the fluorescence spectrum was measured at an excitation wavelength of 280 mn, it was confirmed that strong emission was observed around 360 nm and 410 nm (Fig. 76).
- Ethanol ZT HF (weight ratio 1: 1) mixed solvent lg, ion-exchanged water 43 ⁇ 1 and 2 ⁇ hydrochloric acid aqueous solution 10 1 added to BTETPO.lg mixed with ethanol THF (weight ratio 1: 1) mixed solvent A solution dissolved in lg was added, and the mixture was stirred at room temperature for 24 hours or more to obtain a sol solution. 5 006440
- a coat film (thickness: 100 to 300 nm) was obtained by a spin coating method in the same manner as in Example 22, and the obtained film was dried.
- Fluorescence spectrum (solid line, excitation wavelength: 280 nm) and excitation spectrum (dashed line, measurement wavelength: 400 nm) of the terfure silica thin film (TPh-acid-film) obtained in Example 27. Is shown in FIG. When the fluorescence spectrum was measured at an excitation wavelength of 280 nm, it was confirmed that strong emission centered at 420 mn was observed (FIG. 77).
- Ethanol / THF (1: 1 weight ratio) mixed solvent lg with 21 ⁇ l of ion-exchanged water, 5 ⁇ l of 2 ⁇ hydrochloric acid solution and Bri j-76 (C 18 H 37 (EO) 10 ) 0.07 g 5 ⁇
- the added solution has the following structure
- the X-ray diffraction pattern of the pyrene-silica composite material thin film (Pyr-HMM c-s-film) obtained in Example 28 is shown in FIG. 78, showing the fluorescence spectrum (solid line, excitation wavelength: 350 nm) and the excitation spectrum.
- Figure 79 shows the torr (dashed line, measurement wavelength: 450 nm).
- the fluorescence spectrum was set at an excitation wavelength of 350 nm. When the measurement was performed, it was confirmed that a strong emission centered at 450 nm was exhibited (FIG. 79).
- a solution of 1,6-BTEPyrO.lg dissolved in ethanol lg was added to a solution of 10/1 and 2/1 hydrochloric acid 2/1 in ethanol lg, and the mixture was stirred at room temperature for 1 hour.
- a sol solution was obtained.
- a coat film (thickness: 100 to 300 nm) was obtained by the Svincoat method in the same manner as in Example 22 and then the obtained film was dried.
- FIG. 80 shows the fluorescence spectrum (solid line, excitation wavelength: 350 band) and excitation spectrum (dashed line, measurement wavelength: 450 nm) of the pyrene silica thin film (Pyr-acid-film) obtained in Example 29.
- Fig. 81 shows the UV spectrum.
- the fluorescence spectrum was measured at an excitation wavelength of 350 nm, it was confirmed that strong emission centered at 470 nm was exhibited (FIG. 80).
- the results of the UV spectrum confirmed that it had light absorption bands centered around 250 nm, 280 mn, and 350 nm (Fig. 81).
- the X-ray diffraction pattern of the thin film (Ant-HMMcs-film) of the anthracene-silica composite material obtained in Example 30 is shown in FIG. 82, showing the fluorescence spectrum (solid line, excitation wavelength: 390 nm) and the excitation spectrum.
- the spectrum (dashed line, measurement wavelength: 500 nm) is shown in Fig. 83, and the UV spectrum is shown in Fig. 84.
- a T I-IF (2.9 ml) solution containing 4,4'-jibu-mouth moctafnorolebiphenyl (1. Olg) was added to magnesium (0.22 g), iodine (0.10 g) and potassium chloride.
- the solution was added dropwise to a THF (2.9 ml) solution containing mouth rotriethoxysilane (1.05 g) at 60 ° C. under an argon atmosphere. After the reaction mixture was refluxed at 75 ° C for 18 hours, the solvent was distilled off. Next, the product was extracted from the residue using hexane (30ral) to obtain a yellow oily crude product. This was heated at 350 ° C. under reduced pressure (100hPa) to obtain octafunorolobiphenyl silica as a brown glassy solid.
- the obtained octafluorobiphenyl silica was fixed in a sample folder, and the fluorescence spectrum and the excitation spectrum were measured.
- the excitation wavelength was 360 nm and the fluorescence spectrum was measured, the fluorescence spectrum was 440 nm. A peak was confirmed (FIG. 85).
- the excitation spectrum was measured at a measurement wavelength of 430 nm, it was confirmed that a broad excitation peak was observed from 350 mn to 400 nm centered at 370 nra (Fig. 85). .
- Example 32 The fluorescence spectrum and the excitation spectrum of each sample obtained in Examples 32 to 36 were measured. The obtained results are shown in FIG. 86 (Example 32), FIG. 87 (Example 33), FIG. 88 (Example 34), FIG. 89 (Example 35), and FIG. Table 36 shows the maximum excitation wavelength and the maximum emission wavelength of each, as shown in Example 36).
- FIG. 94 shows the fluorescence spectra (excitation wavelength: 300 nm) of Samples 1 to 5 obtained in Example 37. Only a peak having a maximum at 370 nm was observed in the fluorescence spectrum of Sample 1 not carrying F1. On the other hand, in the samples 2 to 5 supporting F1, both the peak of 370 dishes and the peak of F1 having the maximum value at 530 nm were confirmed. Since the ethanol solution of F1 did not show fluorescence at 300 nm excitation, it was confirmed that the energy transfer from BiPh-HMM to F1 resulted in emission at 530 nm.
- FIG. 95 shows a schematic structural diagram of the sample (Fl / BiPh-HM powder) obtained in Example 37.
- Each solution thus obtained is coated on a glass substrate by a dip coating method, and dried at 60 ° C. for 2 hours to obtain a uniform iodine film (film thickness: 450).
- the molar ratio of F1 to BTEBP was as follows: sample 1 was 0 mol%, sample 2 was 2 mol%, and sample 3 was S5raol%.
- FIG. 96 shows an X-ray diffraction pattern of Sample 2 (Fl (2 mol%) / BiPh- ⁇ M thin film) obtained in Example 38.
- FIG. 97 shows the fluorescence spectra (excitation wavelength: 300 nm) of Samples 1 to 3 obtained in Example 38.
- BiPh_HMM thin film (Sample 1) showed only the maximum fluorescence wavelength of 370 nm, whereas the introduction of F1 decreased the fluorescence peak at 370 nm, increased the peak near 530 nm of F1, and increased the amount of F1. Was confirmed to be remarkable.
- Example 39 the amount of rhodamine was 0 mg (0 mol%), 2.6 rag (0.5 mol ° / 0 ), 5.2 mg (lmol%), 10 rag (2raol%) and 26 mg (5 tnol%). Changed. Further, in Example 40, the amount of pyrene was changed to 12 mg (5 mol ° / o), 25 mg (10 mol%), and 50 mg (20 mol%).
- parentheses is the molar ratio of rhodamine or pyrene to BTEBP.
- FIG. 99 shows the fluorescence spectrum (excitation wavelength: 300 nm) of each sample (rhodamine / BiPh-HMM thin film) obtained in Example 39
- FIG. Fig. 100 shows the fluorescence spectrum (excitation wavelength: 300 nm) of BiPh-Ran M thin film.
- the fluorescence of the biphenyl group decreased and the fluorescence of the dye increased with the increase in the amount of the dye introduced. It was confirmed that energy transfer to the dye was occurring.
- Example 40 Further, in each sample (pyrene / BiPh-HMM thin film) obtained in Example 40, the intensity of monomer emission was high even when pyrene was introduced until the amount of the dye introduced into BTEBP became 20 mol%. From this, it was confirmed that the dye was hard to associate in the mesopores even at a high concentration.
- the fluorescence spectrum (excitation wavelength: 280 nm) of the sample (EuCl 3 / BiPh-HMM-film) obtained in Example 41 was used as the fluorescence spectrum of the BiPh-film-film and the EuCl 3 ethanol solution. Together with this is shown in FIG.
- the fluorescence spectrum (excitation wavelength: 300 nra) of the sample (TbCl 3 / BiPh-HMM-film) obtained in Example 42 was used as the fluorescence spectrum of the BiPh-HMM-film and the ethanol solution of TbCl 3. It is shown in Figure 103 along with the vector.
- the amount of tamarin was Omg (0 mol%), 0.188 rag (0.06 mol), 0.37 mg (0.12 mol%), 0.56 mg (0.18 mol%), 0.75 mg (0.24 mol%) ), 0.94 mg (0.3 mol ° / o), 1.88 mg (0.6 mol ° / o), 3.7 mg (1.2 mol ° / o), 5.6 mg (l.8 mol ° / o), 7.5 mg (2.4 mol ° / o), 9.4 mg (3.0 mol ° / o),
- Figure 104 shows the Xf spring diffraction pattern of BiPh-HMM-film without coumarin
- Figure 105 shows coumarin (3 mol%) with 3 mol% of tamarin / BiPh-HMM-film: X
- diffraction power due to the mesostructure 3 ⁇ 4 0 1-2 °. From this, it was confirmed that the mesostructure of the BiPh-HMM film was maintained even when coumarin was introduced.
- FIG. 106 shows the fluorescence spectrum (excitation wavelength: 270 nm) of coumarin / BiPh-HMM-film into which various amounts of coumarin were introduced.
- emission due to the biphenyl group was observed only at 370 nm.
- emission of 430 nm caused by coumarin was observed, and at the same time, the emission intensity of 370nni caused by biphenyl decreased sharply.
- L 8rao coumarin was introduced into the biphenyl group in BiPh-HMM, the luminescence of the biphenyl group became almost zero. It was confirmed that this coumarin / BiPh-HMM_film emitted sharp blue light under ultraviolet irradiation.
- Figure 107 shows BiPh-HMM-film, coumarin in ethanol solution, coumarin
- a predetermined amount of coumarin which is a fluorescent dye, was added to a solution containing 0.18 g of ion-exchanged water, 4 g of ethanol and O. Olg of a 2N aqueous hydrochloric acid solution, followed by stirring to obtain a uniform solution. Next, 0.6 g of BTEBP was added to those solutions, and further stirred at room temperature for 2 hours to obtain a sol solution.
- the amount of coumarin is 0mg (0mol%), 0.047mg (0.015mol), 0.094rag (0.003raol%), 0.47mg (0.15raol%), 0.94rag (0.3mol%) ), 4.7 mg (1.5 mol) and 9.4 mg (3.0 mol%).
- In parentheses is the molar ratio of tamarin to BTEBP.
- the sol solution was prepared under light shielding in order to prevent coumarin from deteriorating due to photodimerization reaction.
- Each of the sol solutions thus obtained was coated on a glass substrate by a dip coating method, and dried at 60 ° C. for 2 hours to obtain a uniform coating film (film thickness: 450 nm).
- Example 44 When the X-ray diffraction pattern of the composite film of coumarin and biphenyl silica (coumarin / BiPh composite film) obtained in Example 4 was confirmed, no clear diffraction peak was observed and a regular mesostructure was formed. Not confirmed.
- FIG. 108 shows the fluorescence spectrum (excitation wavelength: 270 nm) of the coumarin / BiPh composite membrane into which various amounts of coumarin were introduced. From the results, it was confirmed that the excitation energy from the biphenyl group to coumarin was transferred even in the system without using a surfactant. It was also confirmed that this coumarin / BiPh composite film also emitted a sharp blue light under ultraviolet irradiation.
- a quartz substrate is dip-coated on each of the sol solutions thus obtained (the dipping time is 1 minute and the vertical movement takes 2 minutes each), and dried at 60 ° C for 2 hours to form a uniform coating.
- a film (thickness: 450 nm) was obtained.
- FIG. 110 shows the phosphorescence spectrum of each Ir (ppy) 3 / BiPh-HM thin film obtained in Example 45.
- the wavelength at which the phosphorescent material Ir (ppy) 3 is not excited (excitation wavelength: 220nin, Photon 0
- R6G solution A was prepared by dissolving 55 mg of Rhodamine 6G (R6G, manufactured by Tokyo Chemical Industry Co., Ltd.) in 24 g of ethanol.
- R6G solution B was prepared by dissolving 55 mg of R6G in 11.4 g of ethanol.
- Sample 2 in which R6G was impregnated (attached or filled in pores) to BiPh-HMM-c-s (Example 47, the amount of R6G impregnated was 0.59 wt% relative to BiPh-HMM-c-s) and Sample 3 (Example 48, the amount of R6G added was 1.2 wt% with respect to BiPh-HMM-cs) was obtained.
- the fluorescence intensity around 370 nm decreases, and the ratio of the fluorescence intensity around 370 nm and around 560 nm differs depending on the presence or absence of surfactant and the amount of adhering.Therefore, it is possible to adjust the color mixture by controlling these factors. confirmed.
- the precursor (BiPh-Hs-c-s) of the mesoporous body of the biphenylsilicone composite material containing the surfactant obtained in Example 5 was used.
- Example 49 The fluorescence spectrum of the sample (mixture of DANS and BiPh-H band) thus obtained in Example 49 is shown in FIG. When excited with 300 nm light, the fluorescence near 370 ntn, which is unique to BiPh-HMM_c-s, decreased, and strong blue fluorescence around 440 nm due to the attachment of DANS was confirmed.
- Example 50 In the X-ray diffraction pattern of BiPh-HMM-c2-s, a peak was observed in a low-angle region (5 degrees or less) showing a regular mesostructure, but no peak showing a biphenyl array was observed. .
- Example 50 the BiPh-HMM-C2-s obtained in Example 50, the mesoporous body (BiPh-H-c-c) of the bifluoric force composite material obtained in Example 4, and the Example Precursor of mesoporous biphenyl silica composite material containing surfactant obtained in 5
- Ethanol 2g, ion exchange water was added 90 / il, nonionic surfactants as a 2N aqueous hydrochloric acid 10 mu 1 and template ⁇ 123 (( ⁇ 0) 20 ( ⁇ ) 70 ( ⁇ ) 2.) 0 ⁇ 2g 0.3 g of BTEBP was added to the solution, and the mixture was stirred at room temperature for 1 hour to obtain a sol solution.
- a coat film (thickness: 300 to 600 nm) was obtained on a glass substrate by spin coating.
- the coating conditions were as follows: the number of rotations was 4000 rpm, and the rotation time was 1 minute. Further, the obtained coating film was fired in air at 250 ° C. for 2 hours to obtain a porous BiPh-HMM-a-film (film thickness: 500 nm).
- Table 10 shows the measurement results of the refractive index of the BiPh-HMM-a-film obtained in Example 55 by ellipsometry.
- Table 10 shows the measurement results of the refractive index of the BiPh-HMM-a-film obtained in Example 55 by ellipsometry.
- biphenyl silica composite fine particles (about 200 nm in diameter) which are dispersed in a solvent and do not cause light scattering are synthesized, and as a standard sample, 9,10-diphenylanthracene having a known quantum yield (quantum yield: 0 90) was used to determine the quantum yield of the bifuel composite material.
- the fine particles of the biphenyl silica composite material were synthesized as follows. 0.31 g of a 6N aqueous sodium hydroxide solution and 50 ml of ion-exchanged water were mixed, and BTEBP was added to the mixture. This solution was stirred at room temperature for 5 minutes, and then subjected to ultrasonic treatment for 20 minutes. As a result, the solution turned into a white emulsion. The emulsion was placed in an autoclave made of Teflon inside and made of metal outside, and stirred at 120 ° C for 15 hours in a rotary opening. The obtained solution became translucent, and this was filtered through a Teflon filter paper (100 zm diameter). When the water ran out, 500 ml of water was added from above the filter paper for washing. After repeating this washing operation one more time, a drying treatment was performed for one day and night under vacuum to obtain fine particles of biphenylsilicone composite material.
- FIG. 120 shows an X-ray diffraction pattern of the obtained biphenyl silica fine particles. Several peaks were observed, confirming that this substance had a periodic structure on a molecular scale. The peaks were assigned to 12.0A (001), 5.9A (002), 3.9A (003), 2.9A (004), and 2.4A (005), and the It can be seen that it has a layered structure.
- FIG. 121 shows a fluorescence statue (excitation wavelength: 300 nm) of the obtained biphenyl silica fine particles in a powder state. From the results, it was confirmed that strong fluorescence centered at 370 nm was exhibited.
- the absorption spectrum was measured using a Shimadzu MPS-2400 spectrophotometer, and the fluorescence spectrum was measured using a JASCO FP6600 spectrofluorometer.
- a square cell (10 cells) was used to measure the absorption spectrum, and a triangle cell was used to measure the fluorescence spectrum.
- the biphenylsilicone fine particles synthesized above were dispersed in 2-propanol (refractive index at a wavelength of 260 nra: about 0.4) having a close refractive index, and subjected to ultrasonic treatment to form a transparent solution. Obtained.
- the haze value of the dispersion at each concentration was 6.4% (the haze value of the solvent alone was 0.5%), confirming that the effect of scattering by the particles was negligibly small.
- the absorption spectrum of these two types of biphenyl silica fine particles 2-propanol dispersion is shown in Fig. 122, and the fluorescence spectrum (excitation wavelength: 260 nm) is shown in Fig. 123. In these concentration ranges, there is no concentration effect such as self-quenching since linearity is obtained with respect to the concentration of the absorbance and the integrated fluorescence intensity. 40
- the integrated fluorescence intensity of the biphenyl silica fine particle dispersion and the standard sample was plotted against the absorbance (Fig. 126). From the slope of the graph (grad x and grad s, the subscripts x and st indicate the sample to be obtained and the standard sample), the fluorescence quantum yield was calculated by the following equation.
- ⁇ ⁇ st (grad x / grad st) ⁇ ( ⁇ " ⁇ / ⁇ 2 5 ⁇ )
- ⁇ is the fluorescence quantum yield and ⁇ is the refractive index of the solvent.
- Hexane is of ⁇ to 2-propanol and cycloalkyl, respectively 1.3972 (wavelength: 2 6 0nm), 1. M05 : using (wavelength 3 ⁇ 0 thigh).
- the fluorescence quantum yield of the bifluorinated silica fine particles was determined to be 0.3.
- the quantum yield of the obtained film was measured using an organic EL quantum yield measurement device (C9920-01) manufactured by Hamamatsu Photonics Co., Ltd. This device measures AlQ 3 (refer to Jpn. J. Appl. Phys., 43, llA, (2004) 7730) whose quantum yield is known to be 0.2, and performs correction beforehand. It is. Table 11 shows the obtained results.
- the BiPh_H band-film obtained in Example 57 had a quantum yield of 0.51 and a higher quantum yield than the powder sample.
- the coumarin ZBiPh-HMM-film obtained in Example 58 had a quantum yield of approximately 1, almost 100% of the energy absorbed by the biphenyl skeleton was transferred to tamarin, and almost all was converted to light. confirmed.
- the luminous efficiency is improved, a decrease in luminous brightness due to concentration quenching is suppressed, and high-luminance luminescence is possible. It is possible to provide a system-based light-emitting material.
- the present invention improves the luminous efficiency of an organic luminescent material which has not been able to obtain sufficient luminous luminance and luminous efficiency in the past, and has a high luminous efficiency over a long period without causing a decrease in luminous luminance due to concentration quenching. It is very useful as a technique for maintaining luminance emission.
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- 2005-03-25 WO PCT/JP2005/006440 patent/WO2005097944A1/ja active Application Filing
- 2005-03-25 JP JP2006512055A patent/JP4640711B2/ja not_active Expired - Fee Related
- 2005-03-25 CN CN2005800096179A patent/CN1934216B/zh not_active Expired - Fee Related
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JP2009506188A (ja) * | 2005-08-30 | 2009-02-12 | エイジェンシー フォー サイエンス, テクノロジー アンド リサーチ | 絡み合った蛍光ポリマーおよび両親媒性分子を含んだ水溶性蛍光粒子 |
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JP2007266243A (ja) * | 2006-03-28 | 2007-10-11 | Canon Inc | 有機発光素子 |
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JP2009280701A (ja) * | 2008-05-22 | 2009-12-03 | Toyota Central R&D Labs Inc | 有機シリカ系材料および有機シリカ系メソ多孔体 |
JP2011122058A (ja) * | 2009-12-10 | 2011-06-23 | Toyota Central R&D Labs Inc | 高輝度発光体 |
JP2011258972A (ja) * | 2011-08-11 | 2011-12-22 | Konica Minolta Holdings Inc | 有機エレクトロルミネッセンス素子、該素子の製造方法、表示装置及び照明装置 |
JP2012039161A (ja) * | 2011-11-22 | 2012-02-23 | Konica Minolta Holdings Inc | 有機エレクトロルミネッセンス素子、表示装置及び照明装置 |
Also Published As
Publication number | Publication date |
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CN1934216B (zh) | 2011-11-23 |
US20070202353A1 (en) | 2007-08-30 |
JPWO2005097944A1 (ja) | 2008-02-28 |
JP4640711B2 (ja) | 2011-03-02 |
CN1934216A (zh) | 2007-03-21 |
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