JP6255338B2 - 高光取り出し性能を有する無機粒子散乱フィルム - Google Patents
高光取り出し性能を有する無機粒子散乱フィルム Download PDFInfo
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- JP6255338B2 JP6255338B2 JP2014520141A JP2014520141A JP6255338B2 JP 6255338 B2 JP6255338 B2 JP 6255338B2 JP 2014520141 A JP2014520141 A JP 2014520141A JP 2014520141 A JP2014520141 A JP 2014520141A JP 6255338 B2 JP6255338 B2 JP 6255338B2
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- oxide
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- 238000005562 fading Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- NOKUWSXLHXMAOM-UHFFFAOYSA-N hydroxy(phenyl)silicon Chemical compound O[Si]C1=CC=CC=C1 NOKUWSXLHXMAOM-UHFFFAOYSA-N 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910052809 inorganic oxide Inorganic materials 0.000 description 1
- 229940035429 isobutyl alcohol Drugs 0.000 description 1
- JMMWKPVZQRWMSS-UHFFFAOYSA-N isopropanol acetate Natural products CC(C)OC(C)=O JMMWKPVZQRWMSS-UHFFFAOYSA-N 0.000 description 1
- 229940011051 isopropyl acetate Drugs 0.000 description 1
- GWYFCOCPABKNJV-UHFFFAOYSA-M isovalerate Chemical compound CC(C)CC([O-])=O GWYFCOCPABKNJV-UHFFFAOYSA-M 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000005055 methyl trichlorosilane Substances 0.000 description 1
- 239000005048 methyldichlorosilane Substances 0.000 description 1
- JLUFWMXJHAVVNN-UHFFFAOYSA-N methyltrichlorosilane Chemical compound C[Si](Cl)(Cl)Cl JLUFWMXJHAVVNN-UHFFFAOYSA-N 0.000 description 1
- BFXIKLCIZHOAAZ-UHFFFAOYSA-N methyltrimethoxysilane Chemical compound CO[Si](C)(OC)OC BFXIKLCIZHOAAZ-UHFFFAOYSA-N 0.000 description 1
- 239000002070 nanowire Substances 0.000 description 1
- UJVRJBAUJYZFIX-UHFFFAOYSA-N nitric acid;oxozirconium Chemical compound [Zr]=O.O[N+]([O-])=O.O[N+]([O-])=O UJVRJBAUJYZFIX-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- KBXJHRABGYYAFC-UHFFFAOYSA-N octaphenylsilsesquioxane Chemical compound O1[Si](O2)(C=3C=CC=CC=3)O[Si](O3)(C=4C=CC=CC=4)O[Si](O4)(C=5C=CC=CC=5)O[Si]1(C=1C=CC=CC=1)O[Si](O1)(C=5C=CC=CC=5)O[Si]2(C=2C=CC=CC=2)O[Si]3(C=2C=CC=CC=2)O[Si]41C1=CC=CC=C1 KBXJHRABGYYAFC-UHFFFAOYSA-N 0.000 description 1
- 239000006259 organic additive Substances 0.000 description 1
- FUBACIUATZGHAC-UHFFFAOYSA-N oxozirconium;octahydrate;dihydrochloride Chemical compound O.O.O.O.O.O.O.O.Cl.Cl.[Zr]=O FUBACIUATZGHAC-UHFFFAOYSA-N 0.000 description 1
- 239000005054 phenyltrichlorosilane Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920001709 polysilazane Polymers 0.000 description 1
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- FDNAPBUWERUEDA-UHFFFAOYSA-N silicon tetrachloride Chemical compound Cl[Si](Cl)(Cl)Cl FDNAPBUWERUEDA-UHFFFAOYSA-N 0.000 description 1
- 239000012798 spherical particle Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 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
- LFQCEHFDDXELDD-UHFFFAOYSA-N tetramethyl orthosilicate Chemical compound CO[Si](OC)(OC)OC LFQCEHFDDXELDD-UHFFFAOYSA-N 0.000 description 1
- ZOYFEXPFPVDYIS-UHFFFAOYSA-N trichloro(ethyl)silane Chemical compound CC[Si](Cl)(Cl)Cl ZOYFEXPFPVDYIS-UHFFFAOYSA-N 0.000 description 1
- ORVMIVQULIKXCP-UHFFFAOYSA-N trichloro(phenyl)silane Chemical compound Cl[Si](Cl)(Cl)C1=CC=CC=C1 ORVMIVQULIKXCP-UHFFFAOYSA-N 0.000 description 1
- ZDHXKXAHOVTTAH-UHFFFAOYSA-N trichlorosilane Chemical compound Cl[SiH](Cl)Cl ZDHXKXAHOVTTAH-UHFFFAOYSA-N 0.000 description 1
- 239000005052 trichlorosilane Substances 0.000 description 1
- IINACGXCEZNYTF-UHFFFAOYSA-K trichloroyttrium;hexahydrate Chemical compound O.O.O.O.O.O.[Cl-].[Cl-].[Cl-].[Y+3] IINACGXCEZNYTF-UHFFFAOYSA-K 0.000 description 1
- CPUDPFPXCZDNGI-UHFFFAOYSA-N triethoxy(methyl)silane Chemical compound CCO[Si](C)(OCC)OCC CPUDPFPXCZDNGI-UHFFFAOYSA-N 0.000 description 1
- JCVQKRGIASEUKR-UHFFFAOYSA-N triethoxy(phenyl)silane Chemical compound CCO[Si](OCC)(OCC)C1=CC=CC=C1 JCVQKRGIASEUKR-UHFFFAOYSA-N 0.000 description 1
- QQQSFSZALRVCSZ-UHFFFAOYSA-N triethoxysilane Chemical compound CCO[SiH](OCC)OCC QQQSFSZALRVCSZ-UHFFFAOYSA-N 0.000 description 1
- ZNOCGWVLWPVKAO-UHFFFAOYSA-N trimethoxy(phenyl)silane Chemical compound CO[Si](OC)(OC)C1=CC=CC=C1 ZNOCGWVLWPVKAO-UHFFFAOYSA-N 0.000 description 1
- YUYCVXFAYWRXLS-UHFFFAOYSA-N trimethoxysilane Chemical compound CO[SiH](OC)OC YUYCVXFAYWRXLS-UHFFFAOYSA-N 0.000 description 1
- LVYOWQINYGFNDN-UHFFFAOYSA-N yttrium hexahydrate Chemical compound O.O.O.O.O.O.[Y] LVYOWQINYGFNDN-UHFFFAOYSA-N 0.000 description 1
- ZXAUZSQITFJWPS-UHFFFAOYSA-J zirconium(4+);disulfate Chemical compound [Zr+4].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZXAUZSQITFJWPS-UHFFFAOYSA-J 0.000 description 1
Images
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Description
本発明は、無機微粒子散乱フィルム及びその製造方法に関する。ここで、光散乱効果による高い光取り出し効果を達成するため、孔を有する無機微粒子層を発光デバイス界面もしくは透明基板上に形成し、高い平坦度および高い硬度を呈するため、無機微粒子層上に平坦化層を形成する。
発光デバイスの場合、発光したとき、発光デバイス界面上の屈折率の違いにより光強度に反射損失が生じる。現在まで、発光デバイスの光強度を増すために表面もしくは透明基板上に反射防止膜を形成する方法、または表面のエッチングにより凸凹を形成して散乱による光強度を増す方法が研究開発されてきた。
基板を用意するステップ;
孔を有する無機微粒子層を基板上に作成するステップ;及び
無機微粒子層上に平坦化層を作成するステップ、
を有する。
無機微粒子及び溶剤を有する無機微粒子コーティング組成物を基板に塗布するステップ;及び
溶剤を除去するため、及び孔を有する無機微粒子層を形成するため、粒子コーティング組成物を加熱するステップ;
を有する。
無機微粒子層上に有機ポリマー薄膜を形成し、次いで熱硬化するステップ、を有する。
無機微粒子層に無機塗膜形成組成物を塗布するステップ;
無機塗膜形成組成物から溶剤を除去するステップ;及び
溶媒除去後に得られる無機塗膜形成組成物について熱処理、電子線処理もしくはUV線処理を行うことにより平坦化層を形成するステップ;
を有する。
無機微粒子分散フィルム
本発明による無機微粒子分散フィルムは、光取り出しを向上させるための散乱フィルムであり、そして孔を有する無機微粒子層;及び該無機微粒子層を保護し、平坦化するための平坦化層、を有する。
金属酸化物を有する水溶液を用意するステップ;
水溶液を触媒、溶剤及び中和剤と混合することによりpHを調整、かつ反応温度を調整することにより均一な沈殿物を用意するステップ;
濾過及び洗浄ステップにより沈殿物を均一に混合するステップ;及び
熱処理条件下で比表面積及び結晶度を調整するステップ;
を有する一連の工程により製造してよい。
ジルコニア水溶液及びイットリア水溶液を調製及び精製するステップ;
前記水溶液を触媒、溶剤及び中和剤と混合することによりpHを調整、かつ反応温度を調整することにより均一な沈殿物を用意するステップ;
濾過及び洗浄ステップにより沈殿物を均一に混合するステップ;及び
熱処理条件下で比表面積及び結晶度を調整するステップ;
を有する一連の工程により製造してよい。
本発明の無機微粒子散乱フィルムの製造方法は、以下のステップ:基板を用意するステップ;孔を有する無機微粒子層を基板上に作成するステップ;及び無機微粒子層上に平坦化層を作成するステップ、を有する。
溶剤を除去するため、及び孔を有する無機微粒子層を形成するため、無機微粒子コーティング組成物を加熱するステップ;を有する。
実施例1−1
ZrOCl3・8H2O12.5重量%及びY(NO3)3・6H2O2重量%を水に溶解し、水酸化アンモニウム(NH4OH)の混合液と反応させ、溶液を調製した(pH=9.00で沈殿した)。調製した沈殿溶液を室温で1時間反応させた後、反応を完了した。沈殿物及び溶液は濾過ステップにより分離し、分離沈殿物は蒸留水中に分散し、洗浄し、1μmの孔を有するフィルターで脱水し、次いで洗浄を繰り返した。脱水した沈殿物を100℃の乾燥器で24時間乾燥し、空気雰囲気下の電気炉において800℃で1時間の熱処理に付した。
ZrOCl3・8H2O12.5重量%及びY(NO3)3・6H2O2重量%を添加剤を有する蒸留水に溶解し、水酸化アンモニウム(NH4OH)の混合液と反応させ、溶液を調製した(pH=9.00で沈殿した)。調製した沈殿溶液を室温で1時間反応させた後、反応温度を60℃に上げて3時間反応させ、反応を完了した。そのとき以降は、実施例1−1と同じプロセスを行った。合成されたナノパウダーについて、X線回折結果及び走査型電子顕微鏡(SEM)写真を、それぞれ図5及び図7に示す。
添加剤をジルコニア水溶液及びイットリア水溶液に滴下すること以外は、実施例1−2に記載されている同じやり方でこのプロセスを行った。得られた溶液を室温で1時間反応させた後、反応温度を60℃に上げてさらに3時間反応させた。そのとき以降は、実施例1−1と同じプロセスを行った。この方法で得られた粒子は実施例1−2で得られたものより小さいサイズを有していた。
実施例2−1
ナノサイズのジルコニアパウダーを有機溶剤中の添加剤と混合した。得られた溶液を3時間粉砕して、分散液を調製した。分散液をガラス基板に塗布した。溶剤を100℃の乾燥器で30秒間乾燥した後、無機微粒子層を積層するため、塗布した液体を30分間250℃で加熱した。それから、無機微粒子層上に、平坦化層を積層するように、ポリアクリル酸化合物を塗布した。
ナノサイズのイットリアパウダーを使用することにより、実施例2−1に記載したのと同じやり方で分散液を調製し、無機微粒子層及び平坦化層を積層した。
50から60nmのサイズを有するイットリアで安定化したジルコニア(YSZ)を使用することにより、実施例2−1に記載したのと同じやり方で分散液を調製し、無機微粒子層及び平坦化層を積層した。ここでコーティング条件を変えることにより、1から10μmの厚さで無機微粒子層を積層した。
50から60nmのサイズを有するイットリアで安定化したジルコニア(YSZ)を有機溶剤中の添加剤と混合した。得られた溶液を48時間粉砕して、分散液を調製した。コーティング条件を変えることにより、分散液をガラス基板に0.5から2μmの厚さで塗布した。溶剤を除去するように、被覆ガラス基板を140℃の乾燥器で5分乾燥した。それから、無機微粒子層上で熱処理を行うように、基板を500℃で30分間加熱した。
すぐ後で孔を形成する要因を有するケイ素有機化合物でガラス基板を被覆し、溶剤を除去するため100℃の乾燥器で30秒間乾燥した。それから、ガラス上に孔を有する酸化ケイ素層を形成するため、基板を230℃で30分間加熱した。
実施例2及び比較例1においてのみ使用されるガラス基板を使用した。
ガラス基板上に、SOGコーティング液(TOK、LMLシリーズ)を400rpmで30秒スピンコートした。それからホットプレート上で、150℃で3分間の予備焼きなましにより、溶剤を乾燥した。それから、窒素雰囲気下、500℃で30分間ハードベークを行った。
Claims (13)
- 透明基板;
1.7以上の屈折率を有する無機微粒子と、
無機粒子間に形成される孔であって、約1の屈折率を有する孔と、
を有する無機微粒子層;及び
前記無機微粒子層を保護し平坦化するための平坦化層であって、前記平坦化層は無機塗膜形成材料を有し、前記無機塗膜形成材料はBもしくはPbを有する化合物を有する、平坦化層;
を有する、光取り出しを向上させる無機微粒子散乱フィルム。 - 無機微粒子層の無機微粒子は、Li、Be、B、Na、Mg、Si、K、Ca、Sc、V、Cr、Mn、Fe、Ni、Cu、Zn、Ga、Ge、Rb、Sr、Y、Mo、Cs、Ba、La、Hf、W、Tl、Pb、Ce、Pr、Nd、Pm、Sm、Eu、Gd、Tb、Dy、Ho、Er、Tm、Yb、Ti、Sb、Sn、Zr、Ce、Ta、In及びこれらの組み合わせを含むグループから選択される金属を有する金属酸化物を有する、請求項1に記載の無機微粒子散乱フィルム。
- 金属酸化物は、酸化ジルコニウム(ZrO2);酸化ハフニウム(HfO2);酸化タンタル(Ta2O5);酸化チタン(TiO2);酸化イットリウム(Y2O3);酸化亜鉛(ZnO);酸化イットリウム、酸化マグネシウム(MgO)、酸化カルシウム(CaO)もしくは酸化セリウム(CeO2)で安定化もしくは部分安定化した酸化ジルコニウム(Y2O3−ZrO2、MgO−ZrO2、CaO−ZrO2、CeO2−ZrO2);及びこれらの混合物を含むグループから選択される、請求項2に記載の無機微粒子散乱フィルム。
- 金属酸化物が酸化イットリウムで安定化もしくは部分安定化した酸化ジルコニウムである、請求項3に記載の無機微粒子散乱フィルム。
- 無機微粒子層の無機微粒子は1nmから1μmに及ぶ平均粒子径(D50)を有する、請求項1に記載の無機微粒子散乱フィルム。
- 無機微粒子散乱フィルムの厚さは100nmから30μmに及ぶ、請求項1に記載の無機微粒子散乱フィルム。
- 無機微粒子散乱フィルムの表面平坦度(Ra)は1nmから10nmに及ぶ、請求項1に記載の無機微粒子散乱フィルム。
- 無機微粒子散乱フィルムの表面硬さは3Hから9Hに及ぶ、請求項1に記載の無機微粒子散乱フィルム。
- 以下のステップ:
基板を用意するステップ;
1.7以上の屈折率を有する無機微粒子と、
無機粒子間に形成される孔であって、約1の屈折率を有する孔と、
を有する無機微粒子層を基板上に作成するステップ;及び
前記無機微粒子層上に平坦化層を作成するステップであって、前記平坦化層は無機塗膜形成材料を有し、前記無機塗膜形成材料はBもしくはPbを有する化合物を有する、ステップ;
を有する無機微粒子散乱フィルムの製造方法。 - 孔を有する無機微粒子層を基板上に作成するステップが、以下のステップ:
無機微粒子及び溶剤を有する無機微粒子コーティング組成物を基板に塗布するステップ;及び
溶剤を除去し、孔を有する無機微粒子層を形成するように、無機微粒子コーティング組成物を加熱するステップ;
を有する請求項9に記載の方法。 - 無機微粒子層上に平坦化層を作成するステップが、以下のステップ:
無機微粒子層に無機塗膜形成組成物を塗布するステップ;
無機塗膜形成組成物から溶剤を除去するステップ;及び
溶媒除去後に得られる無機塗膜形成組成物について熱処理、電子線処理もしくはUV線処理を行うことにより平坦化層を形成するステップ;
を有する請求項9に記載の方法。 - 無機微粒子コーティング組成物、無機塗膜形成組成物をスピンコート、ディップコート、スロット塗布もしくはスクリーン印刷により塗布する、請求項10から11のいずれかに記載の方法。
- 請求項1から8のいずれかに記載の無機微粒子散乱フィルムを有する、ガラス、発光デバイス、太陽電池基板、有機ポリマーフィルムもしくは照明素子。
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PCT/KR2012/005635 WO2013009150A2 (ko) | 2011-07-14 | 2012-07-13 | 높은 광추출 성능을 갖는 무기미립자 산란막 |
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- 2012-07-13 JP JP2014520141A patent/JP6255338B2/ja active Active
- 2012-07-13 US US14/232,562 patent/US20140234583A1/en not_active Abandoned
- 2012-07-13 WO PCT/KR2012/005635 patent/WO2013009150A2/ko active Application Filing
- 2012-07-13 EP EP12811804.9A patent/EP2733117A4/en not_active Withdrawn
- 2012-07-13 CN CN201280031464.8A patent/CN103608295B/zh active Active
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TW201318962A (zh) | 2013-05-16 |
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JP2014527683A (ja) | 2014-10-16 |
WO2013009150A9 (ko) | 2013-03-21 |
TWI547433B (zh) | 2016-09-01 |
WO2013008982A1 (ko) | 2013-01-17 |
CN103608295B (zh) | 2016-09-07 |
KR101503704B1 (ko) | 2015-03-20 |
WO2013009150A3 (ko) | 2013-05-02 |
EP2733117A4 (en) | 2015-10-07 |
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