发明名称 |
Silicate phosphor exhibiting high light emission characteristics and moisture resistance, and light emitting device |
摘要 |
A silicate phosphor having a coating layer comprising a fluorine-containing compound on its surface which is obtained by a method of heating a mixture of 100 weight parts of a silicate phosphor and 0.5-15 weight parts of ammonium fluoride at a temperature in the range of 200 to 600° C. exhibits high light emission intensity and high moisture resistance. |
申请公布号 |
US9117981(B2) |
申请公布日期 |
2015.08.25 |
申请号 |
US201113988548 |
申请日期 |
2011.11.22 |
申请人 |
UBE Material Industries, Ltd. |
发明人 |
Fukuda Kouichi;Amagai Jin;Noguchi Seiji;Inagaki Toru;Tanaka Masaki |
分类号 |
H01L33/00;H01L33/50;H01L33/44;C09K11/77 |
主分类号 |
H01L33/00 |
代理机构 |
Nixon Peabody, LLC |
代理人 |
Nixon Peabody, LLC ;Costellia Jeffrey L. |
主权项 |
1. A silicate phosphor having a coating layer comprising a fluorine-containing compound on its surface which is obtained by heating a mixture comprising a silicate phosphor and ammonium fluoride in an amount of 0.5 to 15 weight parts per 100 weight parts of the silicate phosphor at a temperature in the range of 200 to 600° C. |
地址 |
Ube-shi, Yamaguchi JP |