发明授权
- 专利标题： Phosphor, manufacturing method therefor, and light-emitting device using the phosphor
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申请号： US14849103申请日： 2015-09-09
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公开(公告)号： US10020427B2公开(公告)日： 2018-07-10
- 发明人: Ryosuke Hiramatsu , Keiko Albessard , Naotoshi Matsuda , Masahiro Kato
- 申请人： KABUSHIKI KAISHA TOSHIBA , TOSHIBA MATERIALS CO., LTD.
- 申请人地址： JP Tokyo JP Yokohama-shi
- 专利权人： KABUSHIKI KAISHA TOSHIBA,TOSHIBA MATERIALS CO., LTD.
- 当前专利权人： KABUSHIKI KAISHA TOSHIBA,TOSHIBA MATERIALS CO., LTD.
- 当前专利权人地址： JP Tokyo JP Yokohama-shi
- 代理机构： Oblon, McClelland, Maier & Neustadt, L.L.P.
- 优先权： JP2013-050584 20130313
- 主分类号： H01L33/50
- IPC分类号： H01L33/50 ; C09K11/61 ; H01L23/00
摘要：
The present invention provides a red-light emitting phosphor that exhibits high luminous efficacy and emits light when excited by light having an emission peak in the blue region; and a method for manufacturing said phosphor. The phosphor represented by general formula (A): a(Si1-x-y,Tix,Mny)Fb and also characterized in that the half-band width of a diffraction pattern attributed to the (400) plane is not less than 0.2° determined by X-ray powder diffractometry. This phosphor can be manufactured by preparing a reaction solution consisting of an aqueous solution containing potassium permanganate and hydrogen fluoride, immersing a silicon source in said reaction solution, and reacting them for 20 to 80 minutes.