JP2013536283A - 表面改質されたシリケート発光体 - Google Patents
表面改質されたシリケート発光体 Download PDFInfo
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Abstract
【選択図】図1a
Description
実施例A1は、本発明の典型的な実施例に係るフッ素化表面層が提供され、ベース(base)格子組成Sr2.9Ba0.01Ca0.05SiO5:Eu0.04を有する発光体の製造を説明する。この発光体は、表1でその光学データと共に試料F―103と記載され、前記発光体の発光スペクトルは、図1aで“3”と示される。
光学データが表2に示され、発光スペクトルが図1aで“4”と示された、本発明の典型的な実施例に係る試料F―202を含有する発光体を製造するために、実施例A1に記載された100gの発光体マトリックスを2.474gのNH4HF2と混合する。表2は、異なる量のNH4HF2で処理されたユーロピウム活性ストロンチウムオキシオルトシリケート発光体試料の光学及び水分安定性データを含む。この場合、フッ素化表面層は、ロールミル上で400gのガラスビーズと1Lの脱イオン水に前記混合物を入れ、湿性化学沈澱によって塗布される。1時間の処理後、溶液からコーティングされた発光体が除去され、実施例A1と同様の後処理が行われる。
ここでは、実施例A2によって生産された30gの発光体は、35%水素を含有したN2/H2雰囲気で400℃でコランダムるつぼで60分間熱処理される。冷却後、光学データが表2に示され、発光スペクトルが図1aで“5”と表示された試料F―202Tは、スクリーニングによって均一化され、本発明の典型的な実施例を生成する。
本発明の典型的な実施例に係るベース格子組成Sr2.948Ba0.01Cu0.002SiO5:Eu0.04を有するオキシオルトシリケート発光体は、実施例A1によると固相状態で合成され、前駆体物質テトラエトキシシラン(TEOS)を使用してSiO2ネットワークでコーティングされる。このために、50gの発光体は、1Lのエタノール、18.2gのTEOS及び100mlの32%アンモニア水の溶液500mlと混合され、反応容器で2時間撹拌される。その後、コーティングされた発光体は、吸引ろ過され、エタノールで洗浄された後、160℃で24時間乾燥される。
本発明の典型的な実施例に係る試料F―320の形態の発光体の製造のために、組成Sr2.9485Ba0.01Cu0.0015SiO5:Eu0.04のベース格子が合成される。このために、化学量論的量のSrCO3、BaCO3、CuO、Eu2O3、65gのSiO2及び0.3molのNH4Clが混合され、適当なか焼るつぼに導入され、高温炉(high−temparature furnace)で24時間か焼される。か焼プログラムは、それぞれ3時間で1200℃及び1350℃での2つの主要なか焼域を有する。第1のか焼段階の間、か焼は水素濃度5%のフォーミングガス下で達成され、水素濃度は、その後の第2のか焼段階で20%に増加される。
下記の実施例は、本発明の典型的な実施例に基づいてコーティングされたアルカリ土類金属オルトシリケート発光体に関し、組成Sr0.876Ba1.024SiO4:Eu0.1を有する。本実施例において、ベース物質は高温固相反応によって製造され、ここで、出発混合物は、化学量論的量のSrCO3、BaCO3、Eu2O3、SiO2、及び0.2molのNH4Clを含む。
Claims (8)
- シリケート発光体;及び
コーティングを含み、
前記コーティングは、
フッ素化無機製剤、フッ素化有機製剤、又はフッ素化無機製剤とフッ素化有機製剤との組合せを含んで、疎水性表面部位を生成するフッ素化コーティング;及び
前記フッ素化コーティングと少なくとも一つの水分バリア層との組合せの少なくとも一つを含み、
前記水分バリア層は、MgO、Al2O3、Y2O3、La2O3、Gd2O3、Lu2O3及びSiO2、又は対応する前駆物質を含み、
前記コーティングは前記シリケート発光体の表面上に配置されたことを特徴とする表面改質されたシリケート発光体。 - 前記表面改質されたシリケート発光体は、粉末状のアルカリ土類金属シリケート発光体を含むことを特徴とする請求項1に記載の表面改質されたシリケート発光体。
- 前記フッ素化コーティングは、一般式Si(OR)3X(ここで、R=CH3、C2H5、及び高級アルカンであり、X=フッ素基を有する有機配位子を含む)のフッ素基を有する有機シランを含み、
フッ素化層が前記シリケート発光体上に配置され、前記フッ素化されたバリア層が疎水性を有することを特徴とする請求項1に記載の表面改質されたシリケート発光体。 - 前記シリケート発光体は、一般式(Me1+Me2+Me3+)x・(Si,P,Al,B,V,N,C,Ge)y・(O,N)z:(A,F,S)を有し、ここで、Aは、ランタノイド族及び/又はマンガンのグループから選ばれる活性剤であり、Fは、表面に固着又は架橋されたフッ素、又はフッ素化合物であり、Sは、非フッ素化層形成物質の追加コーティングであり、Me+1は1価金属であり、Me2+は2価金属であり、Me3+は周期律表のIII族又はランタノイド族のグループから選ばれる3価金属であり、Siの一部をP、Al、B、V、N、Ge又はCに置き換えることができ、0<x<5、0<y<12、0<z<24であることを特徴とする請求項1に記載の表面改質されたシリケート発光体。
- 前記シリケート発光体は、化学式Sr3―x―y―zCaxBaySiO5:Euz、F、Sを有し、ここで、0≦x≦2、0≦y≦2及び0<z<0.5であることを特徴とする請求項1に記載の表面改質されたシリケート発光体。
- 前記シリケート発光体は、化学式Sr3―x―y―zCaxBaySiO5:Euz、F、Sを有し、ここで、0≦x≦0.05、0≦y≦0.5及び0<z<0.25であることを特徴とする請求項1に記載の表面改質されたシリケート発光体。
- 前記粉末状のアルカリ土類金属シリケート発光体は、Mg、Znを含む2価イオン、アルカリ金属及び希土類のグループから選ばれる1価の陽イオン、及び希土類のグループから選ばれる3価の陽イオンに置き換えられるアルカリ土類金属をさらに含むことを特徴とする請求項2に記載の表面改質されたシリケート発光体。
- 前記粉末状のアルカリ土類金属シリケート発光体は、P、B、V、N、Ge又はCに置き換えられるSiをさらに含むことを特徴とする請求項2に記載の表面改質されたシリケート発光体。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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DE102010034322A DE102010034322A1 (de) | 2010-08-14 | 2010-08-14 | Oberflächenmodifizierter Silikatleuchtstoffe |
DE102010034322.6 | 2010-08-14 | ||
PCT/KR2011/005607 WO2012023714A2 (en) | 2010-08-14 | 2011-07-29 | Surface-modified silicate luminophores |
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JP2013536283A true JP2013536283A (ja) | 2013-09-19 |
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JP2013524029A Withdrawn JP2013536283A (ja) | 2010-08-14 | 2011-07-29 | 表面改質されたシリケート発光体 |
JP2013524040A Pending JP2013541828A (ja) | 2010-08-14 | 2011-08-11 | 表面改質されたシリケート発光体を有する発光装置 |
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JP2013524040A Pending JP2013541828A (ja) | 2010-08-14 | 2011-08-11 | 表面改質されたシリケート発光体を有する発光装置 |
Country Status (10)
Country | Link |
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US (2) | US8945421B2 (ja) |
EP (2) | EP2603571A4 (ja) |
JP (2) | JP2013536283A (ja) |
KR (2) | KR101761855B1 (ja) |
CN (2) | CN103068953A (ja) |
BR (2) | BR112013003416B1 (ja) |
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EP2603937A4 (en) | 2014-10-22 |
US8945421B2 (en) | 2015-02-03 |
EP2603571A4 (en) | 2014-10-22 |
TW201211208A (en) | 2012-03-16 |
WO2012023714A3 (en) | 2012-05-18 |
RU2013111293A (ru) | 2014-09-20 |
EP2603937B1 (en) | 2016-11-23 |
DE102010034322A1 (de) | 2012-02-16 |
US8581286B2 (en) | 2013-11-12 |
KR20120023495A (ko) | 2012-03-13 |
RU2013111302A (ru) | 2014-09-20 |
KR101761855B1 (ko) | 2017-07-27 |
US20120037850A1 (en) | 2012-02-16 |
CN103081140A (zh) | 2013-05-01 |
KR101752428B1 (ko) | 2017-07-05 |
TW201211209A (en) | 2012-03-16 |
RU2569167C2 (ru) | 2015-11-20 |
US20120205674A1 (en) | 2012-08-16 |
BR112013003416B1 (pt) | 2022-01-11 |
KR20120023496A (ko) | 2012-03-13 |
TWI522444B (zh) | 2016-02-21 |
BR112013003416A2 (pt) | 2020-10-27 |
CN103068953A (zh) | 2013-04-24 |
EP2603937A2 (en) | 2013-06-19 |
JP2013541828A (ja) | 2013-11-14 |
BR112013003417B1 (pt) | 2021-10-13 |
EP2603571A2 (en) | 2013-06-19 |
WO2012023714A2 (en) | 2012-02-23 |
TWI541325B (zh) | 2016-07-11 |
BR112013003417A2 (pt) | 2020-10-27 |
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