白光发光二极管用单一基质白光荧光粉  

Single-Phased White Phosphor for White Light Emitting Diodes

作　　者：刘杰[1] 江漫[1] 梅咏梅 吴占超[1] 匡少平[1] 

机构地区：[1]青岛科技大学化学与分子工程学院,青岛266042

出　　处：《化学进展》2013年第12期2068-2079,共12页Progress in Chemistry

基　　金：国家自然科学基金项目(No.21007029);山东省自然科学基金项目(No.ZR2012BQ017);青岛市科技计划项目(13-1-4-114-jch)资助

摘　　要：白光LED被称作新一代照明光源,有着广阔的应用前景。紫外-近紫外光激发的白光LED用单一基质白光荧光粉因具有独特的优势,成为当前白光LED用光转换材料的研究热点。本文全面综述了国内外这一领域的最新研究进展,阐述了单一离子激活,Eu2+/Mn2+、Eu2+/Ce3+、Ce3+/Mn2+、Tm3+/Dy3+、Eu3+/Dy3+共激活和三离子共激活的单一基质白光荧光粉的研究结果和最新进展,对相应的硅酸盐、卤硅酸盐、磷酸盐、硼酸盐、铝酸盐等体系的光致发光及其调控机理进行了简要说明。另外,对该类材料目前存在的问题及未来发展方向进行了分析。White light emitting diodes （WLEDs） are described as the new generation illuminate lamps and have already been used widely in many areas. Single-phased white phosphors excited by ultraviolet-near-ultraviolet （NUV） for WLEDs has become a hot topic in light-conversion materials for their distinctive advantages. Research and development of single-phased white phosphors for WLEDs is of great significance. In this paper, the research progress on single-phased white phosphors both at home and abroad is reviewed comprehensively. The methods to obtain the single-phased white phosphors are introduced. First, some rare earth ions, such as Eu2＋ , Eu3＋ and Ce3＋ , can offer the possibility of simultaneous emission in the blue, green, orange and red wavelengths in different crystalline hosts. The second method is the combination of the intrinsic host emission （ VQ3- , MoO42- , or WO42- ） band with the emission of rare earth ions. The third method is based on the energy transfer between different activators in some hosts. Then the mono ion doped single-phased white phosphors, including Eu1＋-, Eu3 ＋ -, Ce3 ＋ -, Dy3 ＋ -, Sm3 ＋ -activated phosphors, are presented in detail. Works on Euz ＋/Mn2 ＋ , Eu2 ＋/Ce3 ＋ , Ce3＋/Mn＋＋ , Tm3＋/Dy3＋ , Eu3＋/Dy3＋-coactivated single-phased white phosphors are also summarized. In addition, multiple ions-coactivated single-phased white phosphors are reviewed. The photoluminescence spectra and their tunable mechanism of relevant silicate, chlorosilicate, phosphate, borate, aluminate, etc. are described briefly. Moreover, the current problems existing in this field are pointed out and a brief prospect is provided.

关 键 词：荧光粉 白光LED 单一基质 光致发光 光转换 

分 类 号：O611.6[理学—无机化学] TN312.8[理学—化学]