白光LED用高效荧光粉的制备研究进展  

Research Progress in Preparation Techniques of High-efficiency Phosphor Powder for White Light Emitting Diode

作　　者：张星[1,2] 胡鹏[1] 曹月斌[1] 张海宝[1] 李晋林[1] 徐瑞芬[2] 袁方利[1] 

机构地区：[1]中国科学院过程工程研究所多相复杂系统国家重点实验室,北京100190 [2]北京化工大学材料科学与工程学院,北京100029

出　　处：《过程工程学报》2010年第6期1242-1248,共7页The Chinese Journal of Process Engineering

基　　金：国家自然科学基金资助项目(编号:50974111;10905068);国家高技术研究发展计划(863)基金资助项目(编号:2008AA03Z308)

摘　　要：制备具有球形度高、结构均匀、光学性能优异及发射光谱可控的YAG粉体是实现高性能白光LED的关键.本文综述了目前国内外白光LED用高效荧光材料的主要研究成果,并对其主要制备技术的优缺点进行了较详细的分析;在分析总结相关研究的基础上,对目前白光LED用高效荧光粉的研究现状及存在的问题做了简要的概括,最后对其发展前景进行了展望,指出稀土元素的均匀掺杂及颗粒形貌的有效控制是解决白光LED显色性差、发光效率低等问题的有效措施,并提出等离子体方法有可能成为解决上述问题的有效途径之一.The key to achieve the high performance white LED is the preparation of YAG powder with high degree of sphericity,even structure,excellent optical property and controlled emission spectrum. The main research results for luminescent materials used in fabrication of white light emitting diode presently at home and abroad are reviewed,and both advantages and disadvantages of current main methods used for production of YAG are discussed in detail. The main problems on the development of such phosphors are summarized briefly and the prospect of the phosphors is presented. It is suggested that both the improvement of uniformity of lanthanon and the effective control of shape of the particles are effective solutions to the poor CRI and low luminescent efficiency of LED,and plasma technique is an active approach to solve these problems possibly.

关 键 词：白光LED 荧光粉 制备方法 

分 类 号：TN104.3[电子电信—物理电子学] O614.33[理学—无机化学]