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  

Luminescent Properties of Blue Light Activated Red Phosphors for White LED

作　　者：汤晔[1] 傅仁利[1] 曹冰[1] 张鹏飞[1] 杨芳[1] 

机构地区：[1]南京航空航天大学材料科学与技术学院,南京211106

出　　处：《南京航空航天大学学报》2016年第1期58-66,共9页Journal of Nanjing University of Aeronautics & Astronautics

基　　金：江苏高校优势学科建设工程资助项目

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460nm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。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.

关 键 词：红色荧光粉 蓝光激发 光谱宽化 白光LED 

分 类 号：TQ139.2[化学工程—无机化工]