JP2009046684A - 非化学量論的正方晶系銅アルカリ土類シリケート蛍光体及びその製造方法 - Google Patents
非化学量論的正方晶系銅アルカリ土類シリケート蛍光体及びその製造方法 Download PDFInfo
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- JP2009046684A JP2009046684A JP2008213719A JP2008213719A JP2009046684A JP 2009046684 A JP2009046684 A JP 2009046684A JP 2008213719 A JP2008213719 A JP 2008213719A JP 2008213719 A JP2008213719 A JP 2008213719A JP 2009046684 A JP2009046684 A JP 2009046684A
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
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- C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
- C09K11/7728—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing europium
- C09K11/77342—Silicates
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
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Abstract
【解決手段】 本発明の発光素子用非化学量論的発光物質は、正方晶系結晶構造を有し、結晶格子内に化学量論的結晶構造のシリケート蛍光体に比べて、より多量のシリコンを有するシリケート蛍光体である。本発明の発光物質は、そのマトリクス内に2価の銅を含有し、活性剤としてユウロピウムを含有する。
【選択図】 図2
Description
(化学式1)
(BauSrvCawCux)3−y(Zn、Mg、Mn)zSi1+bO5+2b:Eua
本発明の一実施例である下記の化学式2で表される発光物質の製造方法について説明する。
(化学式2)
Cu0.05Sr2.91Si1.05O5.1:Eu0.04
本発明の一実施例である下記の化学式3で表される発光物質1モルの製造方法について説明する。
(化学式3)
Cu0.02Sr2.54Ba0.4Si1.03O5.06:Eu0.04
(実施例3)
(化学式4)
Cu0.03Sr2.92Ca0.01Si1.03O5.06:Eu0.04
Claims (10)
- 発光素子用非化学量論的発光物質であって、
正方晶系結晶構造を有し、結晶格子内に化学量論的結晶構造のシリケート蛍光体に比べて、より多量のシリコンを有するシリケート蛍光体であることを特徴とする非化学量論的発光物質。 - 前記発光物質が、そのマトリクス内に2価の銅を含有し、活性剤としてユウロピウムを含有することを特徴とする請求項1に記載の非化学量論的発光物質。
- 前記発光物質が、波長250nm以上500nm以下の放射線により励起されることを特徴とする請求項1または2に記載の非化学量論的発光物質。
- 前記発光物質が、化学式(BauSrvCawCux)3−y(Zn、Mg、Mn)zSi1+bO5+2b:Euaで表されるシリケートを含み、u+v+w+x=1、y=z+a、z≦2、0<x≦1、0<a≦0.5及び0<b<0.5であることを特徴とする請求項1または2に記載の非化学量論的発光物質。
- 前記発光物質が、励起放射線の長波長側から光を放出することを特徴とする請求項1または2に記載の非化学量論的発光物質。
- 前記発光物質が、500nm以上630nm以下の波長を有する光を放出することを特徴とする請求項1または2に記載の非化学量論的発光物質。
- 前記発光物質が、励起光を出力する発光素子と共に用いられ、白色光または所望の色相の光を生成することを特徴とする請求項1または2に記載の非化学量論的発光物質。
- 前記発光物質が、1次の青色光発光素子と共に用いられ、2000K以上10000K以下の色温度、及び演色指数(CRI)Ra=80〜95を有する白色光を生成することを特徴とする請求項1または2に記載の非化学量論的発光物質。
- 前記発光物質が、過量のSiO2と、酸化物に分解される金属化合物を含む初期物質との間の多段階高温固相反応により製造されたものであることを特徴とする請求項1または2に記載の非化学量論的発光物質。
- 前記多段階高温固相反応が、800℃以上1550℃以下で行われることを特徴とする請求項9に記載の非化学量論的発光物質。
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KR10-2007-0084659 | 2007-08-22 | ||
KR20070084659 | 2007-08-22 | ||
KR10-2008-0074241 | 2008-07-29 | ||
KR1020080074241A KR101106175B1 (ko) | 2007-08-22 | 2008-07-29 | 비화학양론적 정방정계 구리 알칼리 토류 실리케이트형광체 및 그것을 제조하는 방법 |
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JP2013045607A Division JP2013136785A (ja) | 2007-08-22 | 2013-03-07 | 非化学量論的正方晶系銅アルカリ土類シリケート蛍光体及びその製造方法 |
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US (2) | US8137589B2 (ja) |
EP (2) | EP2407527B1 (ja) |
JP (1) | JP5362288B2 (ja) |
CN (1) | CN101784636B (ja) |
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