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可被蓝光激发的白光LED用红色荧光粉材料体系与发光性能研究
引用本文:汤晔,傅仁利,曹冰,张鹏飞,杨芳.可被蓝光激发的白光LED用红色荧光粉材料体系与发光性能研究[J].南京航空航天大学学报,2016,48(1):58-66.
作者姓名:汤晔  傅仁利  曹冰  张鹏飞  杨芳
作者单位:南京航空航天大学材料科学与技术学院,南京,211106
摘    要:综述并讨论了目前研究的可被蓝光LED芯片有效激发且具有宽发射带的红色荧光粉,可以得出:白光LED用红色荧光粉主要包括碱土金属硫化物、新型氮化物及硅酸盐等,这些红色荧光粉均可被460 nm蓝光激发,并具有宽发射光谱的特点。同时着重分析了其晶体结构与荧光性能之间的联系,并探讨了高显色指数和色温可调的白光LED用红色荧光粉下一步的研究方向与应用趋势。

关 键 词:红色荧光粉  蓝光激发  光谱宽化  白光LED

Luminescent Properties of Blue Light Activated Red Phosphors for White LED
Tang Ye,Fu Renli,Cao Bing,Zhang Pengfei,Yang Fang.Luminescent Properties of Blue Light Activated Red Phosphors for White LED[J].Journal of Nanjing University of Aeronautics & Astronautics,2016,48(1):58-66.
Authors:Tang Ye  Fu Renli  Cao Bing  Zhang Pengfei  Yang Fang
Institution:College of Material Science and Technology, Nanjing University of Aeronautics & Astronautics, Nanjing, 211106, China
Abstract:The red phosphors which can be effectively excited by the blue chip and have broad emission bands are reviewed and discussed in this paper. It is obtained that the phosphors mainly include alkaline earth sulfides, novel nitrides and silicates, and have the same characteristics of broad emission band when excited by the 460 nm blue LED chips. Moreover, the correlation between the crystal structure and the luminescent properties is emphatically analyzed, and some view points on the investigation and application of the red phosphors for high color index and adjustable color temperature white LEDs are proposed.
Keywords:red phosphors  blue light activation  spectra broadening  white LEDs
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