白光发射稀土掺杂SrF_2上转换荧光粉的研究  

Synthesis and white light emission of rare earth ions doped SrF_2 up-conversionphosphors

作　　者：祝燕[1] 丁杨[1] 陈明[1] 王行[1] 王雨芹 刘洁[1] 余锡宾[1] 

机构地区：[1]上海师范大学生命与环境科学学院,上海200234

出　　处：《上海师范大学学报（自然科学版）》2016年第6期680-685,共6页Journal of Shanghai Normal University(Natural Sciences)

基　　金：2014年度上海市教委科研创新项目重点项目(14ZZ127)

摘　　要：通过高温固相法合成了Sr_(0.89)Yb_(0.1)Er_(0.01)F_2和Sr_(0.8495)Yb_(0.15)Tm_(0.005)F_2高亮度上转换荧光粉.在980 nm激光激发下,Sr_(0.89)Yb_(0.1)Er_(0.01)F)2样品发出红色和绿色光(黄绿光),Sr0.8495Yb0.15Tm0.005F2样品发出蓝色光.二者发射的荧光强度均高于商用上转换荧光粉.将以上两种上转换荧光粉按一定比例混合后可以得到不同色温的白光发射荧光材料.该系列材料在防伪、三维显示及白光照明等领域具有潜在应用价值.High luminance upconversion phosphors, Sr0.89 Yb0.1 Er0.01 F2 and Sr0.8495 Yb0.15 Tm0.005 F2, were synthesized via a high- temperature solid-phase synthesis. Underexcitation of 980 nmlaser, Sr0.89Yb0.15Tm0.005F2can emit red and green lights （yellow-green light） and Sr0 .84 95Yb0 .15Tm0. 005F2 can emit blue light. The emission intensities of the samplesarestronger than those of the commer-cial upconversion phosphors. The white lightemission materials with different color temperatures can be achievedvia mixing the- above two upconversion phosphors under different mass ratios. These materials have potential applications in security,the three-di-mensional display,and white lighting.

关 键 词：上转换发光材料 荧光粉 白光发射 稀土掺杂 

分 类 号：O611.4[理学—无机化学]