| 发明名称 |
RED LIGHT-EMITTING FLUORESCENT SUBSTANCE AND LIGHT-EMITTING DEVICE EMPLOYING THE SAME |
| 摘要 |
The embodiment provides a red light-emitting fluorescent substance represented by the following formula (1):;(M1-xECx)aM1bAlOcNd (1).;In the formula (1), M is an element selected from the group consisting of IA group elements, IIA group elements, IIIA group elements, IIIB group elements, rare earth elements and IVA group elements; EC is an element selected from the group consisting of Eu, Ce, Mn, Tb, Yb, Dy, Sm, Tm, Pr, Nd, Pm, Ho, Er, Cr, Sn, Cu, Zn, As, Ag, Cd, Sb, Au, Hg, Tl, Pb, Bi and Fe; M1 is different from M and is selected from the group consisting of tetravalent elements; and x, a, b, c and d are numbers satisfying the conditions of 0<x<0.2, 0.55<a<0.80, 2.10<b<3.90, 0<c≦0.25 and 4<d<5, respectively. This substance emits luminescence having a peak in the wavelength range of 620 to 670 nm when excited by light of 250 to 500 nm. |
| 申请公布号 |
US2014264169(A1) |
申请公布日期 |
2014.09.18 |
| 申请号 |
US201414288015 |
申请日期 |
2014.05.27 |
| 申请人 |
KABUSHIKI KAISHA TOSHIBA |
发明人 |
OKADA Aoi;FUKUDA Yumi;MATSUDA Naotoshi;MITSUISHI Iwao;NUNOUE Shinya;ALBESSARD Keiko;KATO Masahiro |
| 分类号 |
C09K11/77 |
主分类号 |
C09K11/77 |
| 代理机构 |
|
代理人 |
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| 主权项 |
1. A fluorescent substance
represented by the following formula (1):
(M1-xECx)aM1bAlOcNd (1)in which M is an element selected from the group consisting of IA group elements, IIA group elements, IIIA group elements, IIIB group elements, rare earth elements and IVA group elements; EC is an element selected from the group consisting of Eu, Ce, Mn, Tb, Yb, Dy, Sm, Tm, Pr, Nd, Pm, Ho, Er, Cr, Sn, Cu, Zn, As, Ag, Cd, Sb, Au, Hg, Tl, Pb, Bi and Fe; M1 is different from M and is selected from the group consisting of tetravalent elements; and x, a, b, c and d are numbers satisfying the conditions of 0<x<0.2, 0.55<a<0.80, 2.10<b<3.90, 0<c≦0.25 and 4<d<5, respectively; and
emitting luminescence having a peak in the wavelength range of 620 to 670 nm under excitation by light in the wavelength range of 250 to 500 nm. |
| 地址 |
Tokyo JP |
