Temperature Effect of Downconversion Luminescence in Er3+,Yb3+Co-doped Gd2WO6Phosphors
Er3+,Yb3+共掺Gd2WO6荧光粉的下转换温度效应

李晶晶 LI Jing-jing, 孙佳石 SUN Jia-shi, 张金苏 ZHANG Jin-su, 李香萍 LI Xiang-ping, 李磊 LI Lei, 程丽红 CHENG Li-hong, 仲海洋 ZHONG Hai-yang, 陈宝玖 CHEN Bao-jiu
2013 Chinese Journal of Luminescence  
The Er 3 + ,Yb 3 + co鄄doped Gd 2 WO 6 phosphors were prepared with co鄄precipitation meth鄄 od. Electric dipole鄄dipole interaction between Er 3 + in Er 3 + , Yb 3 + 鄄doped Gd 2 WO 6 phosphor is demonstrated from the curve of concentration quenching. By analyzing the temperature character of the phosphors, the activation energy of samples with 5% and 20% doping mole fractions is ob鄄 tained and the experimental values are 0. 27 and 0. 29 eV, respectively. The temperature charac鄄 ters of samples
more » ... ters of samples with two different doping concentrations are analyzed by means of fluorescence in鄄 tensity ratio from 2 H 11 / 2 寅 4 I 15 / 2 and 4 S 3 / 2 寅 4 I 15 / 2 radiative transitions, indicating good temperature sensor for the present materials.
doi:10.3788/fgxb20133404.0400 fatcat:ziwzmyjzzvezrfl6cfohh2mnku