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flake type silicon-oxynitride phosphor and its manufacturing method 发明授权

2023-08-09 4650 1222K 0

专利信息

申请日期 2025-08-09 申请号 KR1020110110558
公开(公告)号 KR101136744B1 公开(公告)日 2012-04-09
公开国别 KR 申请人省市代码 全国
申请人 THE INDUSTRY ACADEMIC COOPERATION IN CHUNGNAM NATIONAL UNIVERSITY (IAC)
简介 PURPOSE : Silicon oxynitride-based phosphors are provided to have light-emitting region distributed from blue-green to yellow according to the kind and concentration of alkaline earth metals and rare earth metals, and to have excellent specific surface area, thereby having high luminous efficiency to weight. CONSTITUTION : A manufacturing method of silicon oxynitride-based phosphors having chemical formula : (Me_(1-x)Re_x)3Si_6O_(15-3y)N_2y comprises : a step of offering alkaline earth metal oxide, rare earth metal oxide, alkali earth metal halogenide, silicon source, and reacted mixture of a reducing agent; and a step of self-propagating combustion reacting the reacted mixture under nitrogen atmosphere inside a high pressure reactor. In chemical formula, Me is alkaline earth metal, Re is rare earth metal, Si is silicon, O is oxygen, N is nitrogen, and 0


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