Invention Application
- Patent Title: RED LIGHT EMITTING PHOSPHOR, METHOD FOR MANUFACTURING THE SAME AND LIGHT EMITTING APPARATUS EMPLOYING RED LIGHT EMITTING PHOSPHOR
- Patent Title (中): 红色发光磷光体，其制造方法和使用红色发光磷光体的发光装置
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Application No.: US13655148Application Date: 2011-04-05
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Publication No.: US20130037846A1Publication Date: 2013-02-14
- Inventor: Masamichi Harada , Toyonori Uemura , Hiroshi Fukunaga , Hitoshi Matsushita , Kenji Terashima
- Applicant: Masamichi Harada , Toyonori Uemura , Hiroshi Fukunaga , Hitoshi Matsushita , Kenji Terashima
- Applicant Address: JP Osaka-shi
- Assignee: Sharp Kabushiki Kaisha
- Current Assignee: Sharp Kabushiki Kaisha
- Current Assignee Address: JP Osaka-shi
- Priority: JP2010-095926 20100419
- International Application: PCT/JP11/58597 WO 20110405
- Main IPC: C09K11/79
- IPC: C09K11/79 ; C09K11/80 ; H01L33/50
Abstract:
The present invention relates to a divalent europium-activated nitride red light emitting phosphor substantially represented by a general formula: (MI1-xEux)MIISiN3 (1) (in the formula (1), MI is an alkaline-earth metal element and represents at least one element selected from the group consisting of Mg, Ca, Sr, and Ba; MII is a trivalent metal element and represents at least one element selected from the group consisting of Al, Ga, In, Sc, Y, La, Gd, and Lu; and x is the number satisfying 0.001≦x≦0.10), in which the electrical conductivity of a supernatant liquid of the solution containing 10 parts by mass of pure water with respect to 1 part by mass of the red light emitting phosphor is not more than 10 mS/cm.
Information query
