JP2018080272A - 無機ナノ蛍光体粒子複合体及び波長変換部材 - Google Patents
無機ナノ蛍光体粒子複合体及び波長変換部材 Download PDFInfo
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- 239000002245 particle Substances 0.000 title claims abstract description 130
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 53
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title claims abstract description 9
- 239000011521 glass Substances 0.000 claims abstract description 76
- 239000010419 fine particle Substances 0.000 claims abstract description 24
- 239000002131 composite material Substances 0.000 claims description 37
- 239000011159 matrix material Substances 0.000 claims description 20
- 239000000843 powder Substances 0.000 claims description 19
- 239000002096 quantum dot Substances 0.000 claims description 7
- -1 InN Inorganic materials 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 6
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 6
- UHYPYGJEEGLRJD-UHFFFAOYSA-N cadmium(2+);selenium(2-) Chemical compound [Se-2].[Cd+2] UHYPYGJEEGLRJD-UHFFFAOYSA-N 0.000 claims description 5
- 229910017115 AlSb Inorganic materials 0.000 claims description 3
- 229910004613 CdTe Inorganic materials 0.000 claims description 3
- 229910001218 Gallium arsenide Inorganic materials 0.000 claims description 3
- 229910000673 Indium arsenide Inorganic materials 0.000 claims description 3
- 229910009038 Sn—P Inorganic materials 0.000 claims description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 3
- 229910007709 ZnTe Inorganic materials 0.000 claims description 3
- 229910000420 cerium oxide Inorganic materials 0.000 claims description 3
- WPYVAWXEWQSOGY-UHFFFAOYSA-N indium antimonide Chemical compound [Sb]#[In] WPYVAWXEWQSOGY-UHFFFAOYSA-N 0.000 claims description 3
- RPQDHPTXJYYUPQ-UHFFFAOYSA-N indium arsenide Chemical compound [In]#[As] RPQDHPTXJYYUPQ-UHFFFAOYSA-N 0.000 claims description 3
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims description 3
- SBIBMFFZSBJNJF-UHFFFAOYSA-N selenium;zinc Chemical compound [Se]=[Zn] SBIBMFFZSBJNJF-UHFFFAOYSA-N 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 3
- 239000011787 zinc oxide Substances 0.000 claims description 3
- 230000015556 catabolic process Effects 0.000 abstract description 2
- 238000006731 degradation reaction Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 22
- 239000000126 substance Substances 0.000 description 16
- 238000004031 devitrification Methods 0.000 description 13
- 238000002834 transmittance Methods 0.000 description 11
- 230000005284 excitation Effects 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000011701 zinc Substances 0.000 description 8
- 238000010304 firing Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 239000002612 dispersion medium Substances 0.000 description 5
- 206010040925 Skin striae Diseases 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 238000005245 sintering Methods 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 238000000149 argon plasma sintering Methods 0.000 description 3
- 238000004020 luminiscence type Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 239000003566 sealing material Substances 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- 229910018068 Li 2 O Inorganic materials 0.000 description 2
- 125000000129 anionic group Chemical group 0.000 description 2
- 150000001450 anions Chemical class 0.000 description 2
- 125000002091 cationic group Chemical group 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000010828 elution Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- 229910052688 Gadolinium Inorganic materials 0.000 description 1
- 229910008449 SnF 2 Inorganic materials 0.000 description 1
- 229910052769 Ytterbium Inorganic materials 0.000 description 1
- 229910000272 alkali metal oxide Inorganic materials 0.000 description 1
- 229910001420 alkaline earth metal ion Inorganic materials 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000011258 core-shell material Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 150000002222 fluorine compounds Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000010954 inorganic particle Substances 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000006862 quantum yield reaction Methods 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000011163 secondary particle Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- 150000004763 sulfides Chemical class 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 238000004017 vitrification Methods 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
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Abstract
Description
無機ナノ蛍光体粒子(CdSe/ZnS、平均粒子径=3nm)を分散媒であるヘキサンに1質量%の濃度で分散させた分散液100μlに対し、アルミナ粒子(平均粒子径13nm)0.19g(無機ナノ蛍光体粒子1質量部に対して288質量部)を添加して混合し、分散媒を揮発させることにより、無機ナノ蛍光体粒子表面をアルミナ粒子で被覆し、無機ナノ蛍光体粒子複合体を得た。
無機ナノ蛍光体粒子をアルミナ粒子で被覆せずにそのまま使用したこと以外は、実施例と同様にして波長変換部材を作製した。
得られた波長変換部材について、発光量子効率を測定し、相対比較した。その結果、比較例の波長変換部材の発光量子効率が100a.u.(arbitrary unit;任意単位)であるのに対し、実施例の波長変換部材の発光量子効率は791a.u.であり、約7.9倍の発光量子効率を示した。
2 無機ナノ蛍光体粒子
3 無機微粒子
4 波長変換部材
5 ガラスマトリクス
Claims (10)
- 無機ナノ蛍光体粒子と、
無機ナノ蛍光体粒子の表面に付着した無機微粒子と、
を備えてなることを特徴とする無機ナノ蛍光体粒子複合体。 - 無機微粒子が無機ナノ蛍光体粒子よりも平均粒子径が大きいことを特徴とする請求項1に記載の無機ナノ蛍光体粒子複合体。
- 無機微粒子の平均粒子径が1〜1000nmであることを特徴とする請求項1または2に記載の無機ナノ蛍光体粒子複合体。
- 無機微粒子がアルミナ、シリカ、ジルコニア、酸化亜鉛、酸化チタンまたは酸化セリウムからなることを特徴とする請求項1〜3のいずれかに記載の無機ナノ蛍光体粒子複合体。
- 無機ナノ蛍光体粒子の平均粒子径が1〜100nmであることを特徴とする請求項1〜4のいずれかに記載の無機ナノ蛍光体粒子複合体。
- 無機ナノ蛍光体粒子が、CdS、CdSe、CdTe、ZnS、ZnSe、ZnTe、InP、GaN、GaAs、GaP、AlN、AlP、AlSb、InN、InAs及びInSbから選択される少なくとも一種、またはこれら二種以上の複合体からなる量子ドット蛍光体であることを特徴とする請求項1〜5のいずれかに記載の無機ナノ蛍光体粒子複合体。
- ガラスマトリクス中に請求項1〜6のいずれかに記載の無機ナノ蛍光体粒子複合体が分散してなることを特徴とする波長変換部材。
- 無機ナノ蛍光体粒子複合体とガラス粉末の焼結体からなることを特徴とする請求項7に記載の波長変換部材。
- ガラスマトリクスがSn−P系ガラスまたはSn−P−F系ガラスからなることを特徴とする請求項7または8に記載の波長変換部材。
- ガラス粉末の平均粒子径が0.1〜100μmであることを特徴とする請求項8または9に記載の波長変換部材。
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