JP2007326981A - 蛍光体の製造方法、蛍光体と照明器具 - Google Patents
蛍光体の製造方法、蛍光体と照明器具 Download PDFInfo
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- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title claims abstract description 86
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- 239000000843 powder Substances 0.000 claims abstract description 73
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- 239000012298 atmosphere Substances 0.000 claims abstract description 11
- 239000012299 nitrogen atmosphere Substances 0.000 claims abstract description 11
- 229910052581 Si3N4 Inorganic materials 0.000 claims abstract description 10
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 claims abstract description 10
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 9
- 238000000790 scattering method Methods 0.000 claims abstract description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000002156 mixing Methods 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims description 42
- 229910001940 europium oxide Inorganic materials 0.000 claims description 14
- AEBZCFFCDTZXHP-UHFFFAOYSA-N europium(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Eu+3].[Eu+3] AEBZCFFCDTZXHP-UHFFFAOYSA-N 0.000 claims description 14
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 11
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 10
- 230000001590 oxidative effect Effects 0.000 claims description 9
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- 229910052582 BN Inorganic materials 0.000 claims description 6
- 229910052693 Europium Inorganic materials 0.000 claims description 5
- OGPBJKLSAFTDLK-UHFFFAOYSA-N europium atom Chemical compound [Eu] OGPBJKLSAFTDLK-UHFFFAOYSA-N 0.000 claims description 5
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- -1 magnesium magnesium nitride Chemical class 0.000 description 4
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910002601 GaN Inorganic materials 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
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- BNGXYYYYKUGPPF-UHFFFAOYSA-M (3-methylphenyl)methyl-triphenylphosphanium;chloride Chemical compound [Cl-].CC1=CC=CC(C[P+](C=2C=CC=CC=2)(C=2C=CC=CC=2)C=2C=CC=CC=2)=C1 BNGXYYYYKUGPPF-UHFFFAOYSA-M 0.000 description 1
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910002795 Si–Al–O–N Inorganic materials 0.000 description 1
- 150000004645 aluminates Chemical class 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- PVDYMOCCGHXJAK-UHFFFAOYSA-H europium(3+);oxalate Chemical compound [Eu+3].[Eu+3].[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O PVDYMOCCGHXJAK-UHFFFAOYSA-H 0.000 description 1
- CQQZFSZWNXAJQN-UHFFFAOYSA-K europium(3+);trihydroxide Chemical compound [OH-].[OH-].[OH-].[Eu+3] CQQZFSZWNXAJQN-UHFFFAOYSA-K 0.000 description 1
- GAGGCOKRLXYWIV-UHFFFAOYSA-N europium(3+);trinitrate Chemical compound [Eu+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O GAGGCOKRLXYWIV-UHFFFAOYSA-N 0.000 description 1
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- 150000002500 ions Chemical class 0.000 description 1
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- 230000007774 longterm Effects 0.000 description 1
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- 239000003550 marker Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- 238000007873 sieving Methods 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- LGERWORIZMAZTA-UHFFFAOYSA-N silicon zinc Chemical compound [Si].[Zn] LGERWORIZMAZTA-UHFFFAOYSA-N 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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- 229910052723 transition metal Inorganic materials 0.000 description 1
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- 238000009849 vacuum degassing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- C09K11/0883—Arsenides; Nitrides; Phosphides
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- C09K11/7728—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing europium
- C09K11/77348—Silicon Aluminium Nitrides or Silicon Aluminium Oxynitrides
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Abstract
【解決手段】一般式:Si6−ZAlZOZN8−Zで示されるβ型サイアロンが母体材料で、発光中心としてEuを固溶しており、レーザー回折、散乱法によって測定した粒子径分布が、積算分率における10%径(D10)が7〜20μmであり、かつ90%径(D90)が50〜90μmの粉末であることを特徴とする蛍光体であり、窒化ケイ素粉末と、窒化アルミニウム粉末、必要に応じてアルミニウム含有化合物と、Eu含有化合物とを混合してなる原料粉末を、窒素雰囲気又は非酸化雰囲気下で1850〜2050℃の温度で9時間以上保持することで得られる。
【選択図】なし
Description
電気化学工業社製α型窒化珪素粉末(NP−600グレード、酸素含有量1.3質量%)95.5質量%、トクヤマ社製窒化アルミニウム粉末(Fグレード、酸素含有量0.9質量%)3.3質量%、大明化学社製酸化アルミニウム粉末(TM−DARグレード)0.4質量%、信越化学工業社製酸化ユーロピウム粉末(RUグレード)0.8質量%を表1に示すように配合し、合計で1.0kgになるようにした。尚、この場合のEu含有量は0.09at%である。
原料の配合と焼成条件を表1に示すようにした他は、実施例1と同様にして合成粉末を得た。さらにこれを実施例1と同様にして粉末X回折、粒度分布及び蛍光強度の測定を行い、結果を表2に示した。
実施例1と同じ原料粉末を、内寸で直径14.8cm×高さ13.8cmの蓋付きの円筒形窒化ホウ素製容器(電気化学工業製、N−1グレード、密度1.78g/cm3)に560g充填し、カーボンヒーターの電気炉で0.9MPaの加圧窒素雰囲気中、1500℃で1時間の加熱処理を行った。冷却後、容器から取り出した焼成品は、目開き833μm(20メッシュ)のナイロンふるいを通した後に再度容器に充填し、0.9MPaの加圧窒素雰囲気中、1950℃で8時間の加熱処理を行った。得られた生成物は、緩く凝集した塊状であり、清浄なゴム手袋を着用した人手で軽くほぐすことができた。こうして軽度の解砕を行った後、目開き45μmの篩を通した。これらの操作によって、450gの合成粉末を得た。粉末X線回折測定を行った結果、合成粉末はβ型サイアロン単相であった。レーザー回折・散乱法による粒子径分布測定を行った結果、D10は、9.2μm、D90は、71.2μmであった。さらに蛍光スペクトルを測定し、スペクトルのピーク強度(発光強度)とピーク波長を求めた結果を表2に示した。
実施例1の原料に、β型サイアロン粉末を3質量%添加した他は、実施例1と同様にして合成粉末を得た。これを実施例1と同様にして粉末X回折、粒度分布及び蛍光強度の測定を行い、結果を表3に示した。
実施例5の原料に、β型サイアロン粉末を10質量%添加した他は、実施例5と同様にして合成粉末を得た。これを実施例5と同様にして粉末X回折、粒度分布及び蛍光強度の測定を行い、結果を表3に示した。
円筒形の熱分解窒化ホウ素製容器(信越化学工業製、密度2.10g/cm3)を用いた他は、表1に示すように実施例1と同様にして合成粉末を得た。さらにこれを実施例1と同様にして粉末X回折、粒度分布及び蛍光強度の測定を行い、結果を表3に示した。
密度1.60g/cm3の円筒形窒化ホウ素製容器(電気化学工業製、NB−1000グレード)を用いた他は、表1に示すように実施例1と同様にして合成粉末を得た。さらにこれを実施例1と同様にして粉末X回折、粒度分布及び蛍光強度の測定を行い、結果を表3に示した。
実施例1〜11、比較例1〜4で得られたβ型サイアロン蛍光体10gを水100gにエポキシシランカップリング剤(信越シリコーン(株)社製、KBE402)1.0gと共に加え、撹拌しながら一晩放置した。その後、ろ過乾燥したシランカップリング剤で処理された上記サイアロン蛍光体の適量をエポキシ樹脂(サンユレック(株)社製NLD−SL−2101)10gに混練し、発光波長460nmの青色LED素子の上にポッティングし、真空脱気し、110℃で前記樹脂を加熱硬化し、表面実装型LEDを作製した。これに10mAの電流を流して発生する光の発光スペクトルを測定して得たランプ効率を表4に示す。
2. 蛍光体
3. ワイヤー
4. 封止樹脂
5. 容器
6.、7.導電性端子
Claims (7)
- 一般式:Si6−ZAlZOZN8−Zで示されるβ型サイアロンが母体材料で、発光中心としてEuを固溶しており、レーザー回折、散乱法によって測定した粒子径分布が、積算分率における10%径(D10)が7〜20μmであり、かつ90%径(D90)が50〜90μmの粉末であることを特徴とする蛍光体。
- 窒化ケイ素粉末と、窒化アルミニウム粉末、酸化アルミニウム粉末又は加熱により分解して酸化アルミニウムを産生するアルミニウム含有化合物と、更に、酸化ユーロピウム粉末又は加熱により分解して酸化ユーロピウムを産生するユーロピウム含有化合物とを混合してなる原料粉末を、窒素雰囲気又は非酸化雰囲気下で加熱してなるβ型サイアロン粉末からなる蛍光体の製造方法であって、1850〜2050℃の温度で9時間以上保持することを特徴とする請求項1記載の蛍光体の製造方法。
- 窒化ケイ素粉末と、窒化アルミニウム粉末、酸化アルミニウム粉末又は加熱により分解して酸化アルミニウムを産生するアルミニウム含有化合物と、更に、酸化ユーロピウム粉末又は加熱により分解して酸化ユーロピウムを産生するユーロピウム含有化合物とを混合してなる原料粉末を、窒素雰囲気又は非酸化雰囲気下で加熱してなるβ型サイアロン粉末からなる蛍光体の製造方法であって、加熱を少なくとも2回に分けて行い、複数回の加熱操作の間に、解砕操作を行うことを特徴とする蛍光体の製造方法。
- 請求項2又は請求項3に記載の蛍光体を製造する方法であって、出発原料にβ型サイアロンを1.5〜20質量%含有させることを特徴とする蛍光体の製造方法。
- 請求項2乃至4のいずれか一項に記載の蛍光体の製造方法であって、出発原料を密度1.75g/cm3以上の窒化ホウ素材質の容器に充填して加熱することを特徴とする蛍光体の製造方法。
- 請求項1記載の蛍光体と発光光源とを含むことを特徴とする照明器具。
- 発光光源として紫外線又は可視光を用いることを特徴とする請求項6記載の照明器具。
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US12/303,959 US8080174B2 (en) | 2006-06-09 | 2007-06-07 | Fluorescent material, process for producing the same and illuminator employing the same |
EP07744859.5A EP2045308B1 (en) | 2006-06-09 | 2007-06-07 | Fluorescent material, process for producing the same, and illuminator employing the same |
KR1020087031448A KR101083504B1 (ko) | 2006-06-09 | 2007-06-07 | 형광체 및 그 제조 방법 및 그것을 이용한 조명기구 |
PCT/JP2007/061529 WO2007142289A1 (ja) | 2006-06-09 | 2007-06-07 | 蛍光体及びその製造方法並びにそれを用いた照明器具 |
CN2007800213896A CN101466813B (zh) | 2006-06-09 | 2007-06-07 | 荧光粉及其制备方法以及使用该荧光粉的照明器具 |
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JP2015232150A (ja) * | 2015-09-28 | 2015-12-24 | 日亜化学工業株式会社 | 蛍光体の製造方法 |
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JP3726131B2 (ja) | 2002-05-23 | 2005-12-14 | 独立行政法人物質・材料研究機構 | サイアロン系蛍光体 |
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JP4072632B2 (ja) | 2002-11-29 | 2008-04-09 | 豊田合成株式会社 | 発光装置及び発光方法 |
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- 2007-06-07 WO PCT/JP2007/061529 patent/WO2007142289A1/ja active Application Filing
- 2007-06-07 CN CN2007800213896A patent/CN101466813B/zh not_active Expired - Fee Related
- 2007-06-07 US US12/303,959 patent/US8080174B2/en active Active
- 2007-06-07 KR KR1020087031448A patent/KR101083504B1/ko not_active IP Right Cessation
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US11753302B2 (en) | 2019-09-27 | 2023-09-12 | Nichia Corporation | Method of producing beta-sialon fluorescent material |
Also Published As
Publication number | Publication date |
---|---|
US8080174B2 (en) | 2011-12-20 |
EP2045308B1 (en) | 2016-08-10 |
CN101466813A (zh) | 2009-06-24 |
EP2045308A4 (en) | 2010-12-01 |
KR20090028724A (ko) | 2009-03-19 |
US20100219741A1 (en) | 2010-09-02 |
EP2045308A1 (en) | 2009-04-08 |
JP5122765B2 (ja) | 2013-01-16 |
WO2007142289A1 (ja) | 2007-12-13 |
CN101466813B (zh) | 2013-04-03 |
KR101083504B1 (ko) | 2011-11-16 |
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