| 发明名称 |
ß TYPE SIALON, LIGHT-EMITTING DEVICE AND APPLICATION THEREOF |
| 摘要 |
The purpose of the present invention is to provide a phosphor and a light-emitting device using the phosphor. The phosphor has a broad fluorescent spectrum which can obtain white light having a low colour temperature nearly independently by combination with a blue LED, and is beneficial for high colour-rendering properties. The phosphor also has high light-emitting efficiency and possesses the characteristics of conventional nitride phosphors of thermal and chemical stability and little loss of brightness at high temperature. The present invention provides ß type sialon represented by the general formula: Si6-zAlzOzN8-z:Eu(0<z<4.2). This ß type sialon has a P2/P1 ratio of 0.5 to 1000 (wherein, P1 is the height of the absorption line appearing at g=2.00±0.02 in the first derivative type spectrum obtained by electron spin resonance at 25°C, and P2 is the difference between the maximum value and minimum value in the spectrum, on the lower magnetic field side than P1). |
| 申请公布号 |
WO2012077368(A1) |
申请公布日期 |
2012.06.14 |
| 申请号 |
WO2011JP59781 |
申请日期 |
2011.04.21 |
| 申请人 |
DENKI KAGAKU KOGYO KABUSHIKI KAISHA;EMOTO, HIDEYUKI;NAGUMO, TOSHIAKI |
发明人 |
EMOTO, HIDEYUKI;NAGUMO, TOSHIAKI |
| 分类号 |
C09K11/64;H01L33/50 |
主分类号 |
C09K11/64 |
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