文献类型：期刊文献

英文题名：Photoluminescence performance of thulium doped Li₄SrCa(SiO₄)₂ under irradiation of ultraviolet and vacuum ultraviolet lights

作者：Wang, Zhaofeng[1,2];Li, Yezhou[1];Liu, Xiong[1];Wei, Xingmin[1];Chen, Yueling[1];Zhou, Fei[1];Wang, Yuhua[3]

第一作者：Wang, Zhaofeng

通信作者：Li, YZ[1]

机构：[1]Gansu Univ Tradit Chinese Med, Dept Sci Teaching, Lanzhou 730000, Peoples R China;[2]Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China;[3]Lanzhou Univ, Sch Phys Sci & Technol, Dept Mat Sci, Lanzhou 730000, Peoples R China

第一机构：甘肃中医药大学

通信机构：[1]corresponding author), Gansu Univ Tradit Chinese Med, Dept Sci Teaching, Lanzhou 730000, Peoples R China.|[10735]甘肃中医药大学;

年份：2014

卷号：59

起止页码：295

外文期刊名：MATERIALS RESEARCH BULLETIN

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000342956000047)】；

基金：This work was supported by the National Natural Science Foundation of China (No. 51205385). The authors would like to thank Dr. Kang Su in Tsinghua University for his helpful discussion.

语种：英文

外文关键词：Inorganic compounds; Optical materials; Luminescence

摘要：In this work, we synthesized Tm3+ doped Li4SrCa(SiO4)(2) phosphors and investigated their photoluminescence properties under the excitation of ultraviolet and vacuum ultraviolet lights. The crystal structure analysis and variation of cell parameters confirm that Tm3+ ions have been successfully doped in the structure of Li4SrCa(SiO4)(2) host by occupying the sites of Ca2+ with the coordination number of 6. The luminescence results suggest that Li4SrCa(SiO4)(2):Tm3+ is a good blue-emitting phosphor when excited by ultraviolet and vacuum ultraviolet irradiations. In addition, it is observed that there is nearly no degradation for Li4SrCa(SiO4)(2):Te3+ after undergoing thermal and irradiation treatments. Possible mechanisms for the luminescence processes are proposed on the basis of the discussion of excitation and emission spectra. In particular, the emission color of Li4SrCa(SiO4)(2):Tm3+ by excitation of 147 and 172 nm irradiations is very close to the standard blue color, suggesting that it could be potentially applied in plasma display panels and mercury-free fluorescence lamps. (C) 2014 Elsevier Ltd. All rights reserved.