JP2005247632A - 金属酸化物超微粒子分散溶液および金属酸化物超微粒子薄膜 - Google Patents
金属酸化物超微粒子分散溶液および金属酸化物超微粒子薄膜 Download PDFInfo
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- JP2005247632A JP2005247632A JP2004060144A JP2004060144A JP2005247632A JP 2005247632 A JP2005247632 A JP 2005247632A JP 2004060144 A JP2004060144 A JP 2004060144A JP 2004060144 A JP2004060144 A JP 2004060144A JP 2005247632 A JP2005247632 A JP 2005247632A
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- Prior art keywords
- metal oxide
- ultrafine particle
- solution
- oxide ultrafine
- thin film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 229910044991 metal oxide Inorganic materials 0.000 title claims abstract description 92
- 150000004706 metal oxides Chemical class 0.000 title claims abstract description 90
- 239000011882 ultra-fine particle Substances 0.000 title claims abstract description 80
- 239000010409 thin film Substances 0.000 title claims abstract description 62
- 239000006185 dispersion Substances 0.000 title claims abstract description 43
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 51
- 239000004530 micro-emulsion Substances 0.000 claims abstract description 36
- 239000010936 titanium Substances 0.000 claims abstract description 32
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000004094 surface-active agent Substances 0.000 claims abstract description 29
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 29
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 27
- 239000007788 liquid Substances 0.000 claims abstract description 19
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 16
- 239000002612 dispersion medium Substances 0.000 claims abstract description 14
- 239000002131 composite material Substances 0.000 claims description 47
- 229910052751 metal Inorganic materials 0.000 claims description 30
- 239000002184 metal Substances 0.000 claims description 30
- 229910052788 barium Inorganic materials 0.000 claims description 14
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims description 8
- 150000002736 metal compounds Chemical class 0.000 claims description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 3
- 229910052791 calcium Inorganic materials 0.000 claims description 3
- 239000011575 calcium Substances 0.000 claims description 3
- 229910052712 strontium Inorganic materials 0.000 claims description 3
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 claims description 3
- 230000007062 hydrolysis Effects 0.000 abstract description 19
- -1 compound metal oxide Chemical class 0.000 abstract description 9
- 238000002156 mixing Methods 0.000 abstract description 5
- 150000002902 organometallic compounds Chemical class 0.000 abstract description 4
- 150000004703 alkoxides Chemical class 0.000 description 34
- 239000002105 nanoparticle Substances 0.000 description 31
- 239000010408 film Substances 0.000 description 30
- 239000002245 particle Substances 0.000 description 22
- 238000000034 method Methods 0.000 description 21
- 239000002994 raw material Substances 0.000 description 20
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 19
- 229910002113 barium titanate Inorganic materials 0.000 description 19
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 18
- 238000000576 coating method Methods 0.000 description 16
- 230000015572 biosynthetic process Effects 0.000 description 14
- 239000000919 ceramic Substances 0.000 description 14
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 13
- 239000004020 conductor Substances 0.000 description 12
- 238000000593 microemulsion method Methods 0.000 description 12
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 12
- 239000002904 solvent Substances 0.000 description 11
- 239000000758 substrate Substances 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 10
- 239000011248 coating agent Substances 0.000 description 10
- 239000000203 mixture Substances 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 9
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 8
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 8
- 239000003990 capacitor Substances 0.000 description 7
- 239000004064 cosurfactant Substances 0.000 description 7
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 229910052697 platinum Inorganic materials 0.000 description 6
- 238000004528 spin coating Methods 0.000 description 6
- VXUYXOFXAQZZMF-UHFFFAOYSA-N titanium(IV) isopropoxide Chemical compound CC(C)O[Ti](OC(C)C)(OC(C)C)OC(C)C VXUYXOFXAQZZMF-UHFFFAOYSA-N 0.000 description 6
- 238000011156 evaluation Methods 0.000 description 5
- 239000010419 fine particle Substances 0.000 description 5
- 239000002905 metal composite material Substances 0.000 description 5
- 238000004544 sputter deposition Methods 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- KBPLFHHGFOOTCA-UHFFFAOYSA-N 1-Octanol Chemical compound CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 235000010650 Hyssopus officinalis Nutrition 0.000 description 4
- 240000001812 Hyssopus officinalis Species 0.000 description 4
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- XBYNNYGGLWJASC-UHFFFAOYSA-N barium titanium Chemical compound [Ti].[Ba] XBYNNYGGLWJASC-UHFFFAOYSA-N 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 238000003786 synthesis reaction Methods 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000005456 alcohol based solvent Substances 0.000 description 3
- 239000012300 argon atmosphere Substances 0.000 description 3
- CPUJSIVIXCTVEI-UHFFFAOYSA-N barium(2+);propan-2-olate Chemical compound [Ba+2].CC(C)[O-].CC(C)[O-] CPUJSIVIXCTVEI-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000007795 chemical reaction product Substances 0.000 description 3
- 238000000280 densification Methods 0.000 description 3
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- 238000009826 distribution Methods 0.000 description 3
- 239000000839 emulsion Substances 0.000 description 3
- 229960004592 isopropanol Drugs 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 239000003960 organic solvent Substances 0.000 description 3
- 238000006116 polymerization reaction Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Chemical compound CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 description 2
- RGSFGYAAUTVSQA-UHFFFAOYSA-N Cyclopentane Chemical compound C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 description 2
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 2
- SWXVUIWOUIDPGS-UHFFFAOYSA-N diacetone alcohol Chemical compound CC(=O)CC(C)(C)O SWXVUIWOUIDPGS-UHFFFAOYSA-N 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- 239000003759 ester based solvent Substances 0.000 description 2
- LZCLXQDLBQLTDK-UHFFFAOYSA-N ethyl 2-hydroxypropanoate Chemical compound CCOC(=O)C(C)O LZCLXQDLBQLTDK-UHFFFAOYSA-N 0.000 description 2
- 230000005621 ferroelectricity Effects 0.000 description 2
- 238000009501 film coating Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 239000002563 ionic surfactant Substances 0.000 description 2
- PQLMXFQTAMDXIZ-UHFFFAOYSA-N isoamyl butyrate Chemical compound CCCC(=O)OCCC(C)C PQLMXFQTAMDXIZ-UHFFFAOYSA-N 0.000 description 2
- 239000005453 ketone based solvent Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000002609 medium Substances 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- XNLICIUVMPYHGG-UHFFFAOYSA-N pentan-2-one Chemical compound CCCC(C)=O XNLICIUVMPYHGG-UHFFFAOYSA-N 0.000 description 2
- FDPIMTJIUBPUKL-UHFFFAOYSA-N pentan-3-one Chemical compound CCC(=O)CC FDPIMTJIUBPUKL-UHFFFAOYSA-N 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 150000005846 sugar alcohols Polymers 0.000 description 2
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 description 2
- BGJSXRVXTHVRSN-UHFFFAOYSA-N 1,3,5-trioxane Chemical compound C1OCOCO1 BGJSXRVXTHVRSN-UHFFFAOYSA-N 0.000 description 1
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
- QWOZZTWBWQMEPD-UHFFFAOYSA-N 1-(2-ethoxypropoxy)propan-2-ol Chemical compound CCOC(C)COCC(C)O QWOZZTWBWQMEPD-UHFFFAOYSA-N 0.000 description 1
- DURPTKYDGMDSBL-UHFFFAOYSA-N 1-butoxybutane Chemical compound CCCCOCCCC DURPTKYDGMDSBL-UHFFFAOYSA-N 0.000 description 1
- RIFKADJTWUGDOV-UHFFFAOYSA-N 1-cyclohexylethanone Chemical compound CC(=O)C1CCCCC1 RIFKADJTWUGDOV-UHFFFAOYSA-N 0.000 description 1
- JOLQKTGDSGKSKJ-UHFFFAOYSA-N 1-ethoxypropan-2-ol Chemical compound CCOCC(C)O JOLQKTGDSGKSKJ-UHFFFAOYSA-N 0.000 description 1
- BPIUIOXAFBGMNB-UHFFFAOYSA-N 1-hexoxyhexane Chemical compound CCCCCCOCCCCCC BPIUIOXAFBGMNB-UHFFFAOYSA-N 0.000 description 1
- LTMRRSWNXVJMBA-UHFFFAOYSA-L 2,2-diethylpropanedioate Chemical compound CCC(CC)(C([O-])=O)C([O-])=O LTMRRSWNXVJMBA-UHFFFAOYSA-L 0.000 description 1
- XXXFZKQPYACQLD-UHFFFAOYSA-N 2-(2-hydroxyethoxy)ethyl acetate Chemical compound CC(=O)OCCOCCO XXXFZKQPYACQLD-UHFFFAOYSA-N 0.000 description 1
- SBASXUCJHJRPEV-UHFFFAOYSA-N 2-(2-methoxyethoxy)ethanol Chemical compound COCCOCCO SBASXUCJHJRPEV-UHFFFAOYSA-N 0.000 description 1
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 description 1
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- PKNKULBDCRZSBT-UHFFFAOYSA-N 3,4,5-trimethylnonan-2-one Chemical compound CCCCC(C)C(C)C(C)C(C)=O PKNKULBDCRZSBT-UHFFFAOYSA-N 0.000 description 1
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- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 1
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- RFLAHFZVRXDDAT-UHFFFAOYSA-N [Ca++].[Ti+4].C[O-].C[O-].C[O-].C[O-].C[O-].C[O-] Chemical compound [Ca++].[Ti+4].C[O-].C[O-].C[O-].C[O-].C[O-].C[O-] RFLAHFZVRXDDAT-UHFFFAOYSA-N 0.000 description 1
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- HGXOCKWSIAAMMY-UHFFFAOYSA-N [Ti+4].[Sr++].CC[O-].CC[O-].CC[O-].CC[O-].CC[O-].CC[O-] Chemical compound [Ti+4].[Sr++].CC[O-].CC[O-].CC[O-].CC[O-].CC[O-].CC[O-] HGXOCKWSIAAMMY-UHFFFAOYSA-N 0.000 description 1
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- 229910052786 argon Inorganic materials 0.000 description 1
- 239000003849 aromatic solvent Substances 0.000 description 1
- 229910001422 barium ion Inorganic materials 0.000 description 1
- LYXAMSAOPKFSAO-UHFFFAOYSA-N barium(2+) butan-1-olate titanium(4+) Chemical compound [Ti+4].[Ba++].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] LYXAMSAOPKFSAO-UHFFFAOYSA-N 0.000 description 1
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- 239000003350 kerosene Substances 0.000 description 1
- 229910052451 lead zirconate titanate Inorganic materials 0.000 description 1
- HFGPZNIAWCZYJU-UHFFFAOYSA-N lead zirconate titanate Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ti+4].[Zr+4].[Pb+2] HFGPZNIAWCZYJU-UHFFFAOYSA-N 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- GYMABJMZQMPWAH-UHFFFAOYSA-N magnesium ethanolate titanium(4+) Chemical compound [Mg++].[Ti+4].CC[O-].CC[O-].CC[O-].CC[O-].CC[O-].CC[O-] GYMABJMZQMPWAH-UHFFFAOYSA-N 0.000 description 1
- OLKIFJBUVAJKPA-UHFFFAOYSA-N magnesium methanolate titanium(4+) Chemical compound [Mg++].[Ti+4].C[O-].C[O-].C[O-].C[O-].C[O-].C[O-] OLKIFJBUVAJKPA-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000002082 metal nanoparticle Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229940017219 methyl propionate Drugs 0.000 description 1
- 229910003455 mixed metal oxide Inorganic materials 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 1
- 239000002159 nanocrystal Substances 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- MTZWHHIREPJPTG-UHFFFAOYSA-N phorone Chemical compound CC(C)=CC(=O)C=C(C)C MTZWHHIREPJPTG-UHFFFAOYSA-N 0.000 description 1
- 229930193351 phorone Natural products 0.000 description 1
- 238000000717 platinum sputter deposition Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000000634 powder X-ray diffraction Methods 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- QXMHPYAPFHZWBF-UHFFFAOYSA-N strontium methanolate titanium(4+) Chemical compound [Ti+4].[Sr++].C[O-].C[O-].C[O-].C[O-].C[O-].C[O-] QXMHPYAPFHZWBF-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- KUAZQDVKQLNFPE-UHFFFAOYSA-N thiram Chemical compound CN(C)C(=S)SSC(=S)N(C)C KUAZQDVKQLNFPE-UHFFFAOYSA-N 0.000 description 1
- 229940005605 valeric acid Drugs 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Images
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- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/018—Dielectrics
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- H01G4/08—Inorganic dielectrics
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Abstract
【解決手段】疎水性液体である分散媒、水および界面活性剤を含むマイクロエマルジョン中での加水分解反応によって作製されるチタン系複合金属酸化物超微粒子分散溶液に、同種のチタン系複合金属酸化物用の有機金属化合物溶液を液中の複合金属酸化物換算で1:1〜1:30の範囲の割合で混合してなる金属酸化物超微粒子分散溶液。
【選択図】 図1
Description
(1)マイクロエマルジョン中における疎水性溶媒を除去濃縮し、生成金属複合ナノ粒子濃度を上昇させる。
(2)マイクロエマルジョン組成中の水量、およびそれに対応した金属アルコキシド原料量を増やし、濃度を上げる。
(3)マイクロエマルジョン組成はそのままにし、添加する金属アルコキシド原料量を増やし、生成する金属複合ナノ粒子に対して残存する金属アルコキシド量を増やし、濃度を上げる。
→BaTiO3+6isopropanol
したがって、この場合には、バリウムイソプロポキシドとチタンイソプロポキシドの各1molに対して、3molの水が加水分解に必要となる。そして、この場合のマイクロエマルジョン中に含まれる水量は、加水分解に必要な水の量の0.95倍以上3倍以下、すなわち、2.85mol以上9mol以下であることが必要となる。
本発明の金属酸化物超微粒子薄膜は、種々の電子デバイスに使用できるものであり、例えば、図2は、積層コンデンサに適用した場合の構成の一例を示している。
まず、原料アルコキシド溶液の調製として、アルゴン雰囲気のグローブボックス中でバリウムイソプロポキシド4gをイソプロピルアルコール160mlの混合溶媒に混合して溶解し、バリウムアルコキシド溶液とした後、これに等モルのチタンイソプロポキシド溶液を滴下して一晩混合し、淡黄色透明のバリウム−チタン複合アルコキシド原料溶液を得た。
2 界面活性剤
3 コサーファクタント
4 水
5 反応生成物
6 分散媒
Claims (4)
- 疎水性液体である分散媒、水および界面活性剤を含むマイクロエマルジョン中での加水分解反応によって作製されるチタン系複合金属酸化物超微粒子分散溶液に、同種のチタン系複合金属酸化物用の有機金属化合物溶液を液中の複合金属酸化物換算で1:1〜1:30の範囲の割合で混合してなる、ことを特徴とする金属酸化物超微粒子分散溶液。
- 請求項1に記載の金属酸化物超微粒子分散溶液において、
前記チタン系複合金属酸化物超微粒子分散溶液中の前記疎水性分散媒に対する前記界面活性剤の濃度が体積比で10%以下であり、かつチタン系複合金属酸化物超微粒子換算濃度が0.05mol/l以下である、ことを特徴とする金属酸化物超微粒子分散溶液。 - 請求項1または2に記載の金属酸化物超微粒子分散溶液において、
前記チタン系複合金属酸化物はMTiO3で表されるペロブスカイト型酸化物であり、式中Mはバリウム、カルシウム、ストロンチウムのうち少なくとも1種以上の金属元素を含む、ことを特徴とする金属酸化物超微粒子分散溶液。 - 請求項1から請求項3のいずれかに記載の金属酸化物超微粒子分散溶液を用いて得られた、ことを特徴とする金属酸化物超微粒子薄膜。
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JP2004060144A JP4345524B2 (ja) | 2004-03-04 | 2004-03-04 | 金属酸化物超微粒子分散溶液の製造方法 |
US11/052,759 US20050194573A1 (en) | 2004-03-04 | 2005-02-09 | Ultrafine metal oxide particle dispersion liquid and ultrafine metal oxide particle thin film |
US12/731,527 US9214279B2 (en) | 2004-03-04 | 2010-03-25 | Ultrafine metal oxide particle dispersion liquid and ultrafine metal oxide particle thin film |
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Cited By (5)
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JP2009538948A (ja) * | 2006-05-31 | 2009-11-12 | ライニッシュ−ヴェストフェリッシェ・テクニッシェ・ホッホシューレ・アーヘン | コーティング溶液の作製並びに制作物 |
JP2009267190A (ja) * | 2008-04-28 | 2009-11-12 | National Institute For Materials Science | ナノ結晶粒子分散液と電子デバイス並びにその製造方法 |
JP2010507187A (ja) * | 2006-07-13 | 2010-03-04 | ナノスケール コーポレーション | 電子工学用途のためのナノ結晶性材料 |
US7819965B2 (en) | 2006-10-12 | 2010-10-26 | Adeka Corporation | Coating formulation and process for the production of titanate-based ceramic film with the coating formulation |
JP2020164375A (ja) * | 2019-03-29 | 2020-10-08 | 戸田工業株式会社 | チタン酸バリウム粒子を含む非水系分散体及びその製造方法 |
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US6737364B2 (en) * | 2002-10-07 | 2004-05-18 | International Business Machines Corporation | Method for fabricating crystalline-dielectric thin films and devices formed using same |
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JPS57144028A (en) * | 1981-02-27 | 1982-09-06 | Ricoh Co Ltd | Nonaqueous dispersion of fine particle |
CA1217927A (en) * | 1983-04-15 | 1987-02-17 | Tsutomu Nanao | Inorganic composite material and process for preparing the same |
JPS6182835A (ja) * | 1984-09-29 | 1986-04-26 | Ricoh Co Ltd | 微粒子体を含有するミクロゲル分散液 |
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JPH02233505A (ja) * | 1989-03-06 | 1990-09-17 | Ricoh Co Ltd | 超微粒子状金属酸化物組成物の製法 |
JPH0369506A (ja) * | 1989-08-07 | 1991-03-25 | Ricoh Co Ltd | 複合金属酸化物超微粒子 |
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IT1270200B (it) * | 1994-06-09 | 1997-04-29 | Ausimont Spa | Preparazione di particelle ultra fini da microemulsioni di acqua in olio |
US5645891A (en) * | 1994-11-23 | 1997-07-08 | Battelle Memorial Institute | Ceramic porous material and method of making same |
JPH1087329A (ja) | 1996-09-09 | 1998-04-07 | Tokyo Ohka Kogyo Co Ltd | Ti系複合金属酸化膜形成用塗布液及びこれを用いて形成した誘電体薄膜 |
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- 2005-02-09 US US11/052,759 patent/US20050194573A1/en not_active Abandoned
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Cited By (6)
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JP2010507187A (ja) * | 2006-07-13 | 2010-03-04 | ナノスケール コーポレーション | 電子工学用途のためのナノ結晶性材料 |
US7819965B2 (en) | 2006-10-12 | 2010-10-26 | Adeka Corporation | Coating formulation and process for the production of titanate-based ceramic film with the coating formulation |
JP2009267190A (ja) * | 2008-04-28 | 2009-11-12 | National Institute For Materials Science | ナノ結晶粒子分散液と電子デバイス並びにその製造方法 |
JP2020164375A (ja) * | 2019-03-29 | 2020-10-08 | 戸田工業株式会社 | チタン酸バリウム粒子を含む非水系分散体及びその製造方法 |
JP7332980B2 (ja) | 2019-03-29 | 2023-08-24 | 戸田工業株式会社 | チタン酸バリウム粒子を含む非水系分散体及びその製造方法 |
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