文献类型：期刊文献

英文题名：Enhanced blue emission of SnO2 doped phosphate glasses by Gd2O3 co-doping

作者：Tong, Yu[1];Yan, Zhiwen[1];Zeng, Huidan[1];Chen, Guorong[1]

机构：[1]E China Univ Sci & Technol, Sch Mat Sci & Engn, Minist Educ, Key Lab Ultrafine Mat, Shanghai 200237, Peoples R China

年份：2014

卷号：145

起止页码：438

外文期刊名：JOURNAL OF LUMINESCENCE

收录：;EI(收录号：20133716724366);WOS:【SCI-EXPANDED(收录号:WOS:000330821200071)】；

基金：This study was supported by Shanghai Leading Academic Discipline Project (No. B502), Shanghai Key Laboratory Project (08DZ2230500), Research Funds for Young Teachers for the Doctoral Program by Ministry of Education of China (D200-B-1115) and the National Natural Science Foundation of China (NSFC 51072052).

语种：英文

外文关键词：Sn center; Phosphate glasses; Gd2O3 co-doping; Photoluminescence; Sn2+/Sn4+ ratio

摘要：SnO2 doped strontium phosphate glasses are prepared and their enhanced visible photoluminescence properties are investigated by co-doping Gd2O3. Sn center and Gd3+ are co-excited at 273 nm and show a broad emission band of Sn center at 421 nm and the sharp one of Gd3+ ions at 311 nm. Much enhanced emission from Sn center is observed with the increased Gd2O3 co-doping at the cost of the Gd3+ emission. Excitation spectra show the tremendous expanded integrated excitation cross-section upon SnO2/Gd3+ co-doping, which benefits energy harvesting of light sources, realizing an efficient sensitization effect of Gd3+ on Sn center. XPS demonstrate that the incorporation of Gd2O3 increases the Sn2+/Sn4+ ratio, contributing to the enhanced blue emission of SnO2 doped glasses. (C) 2013 Elsevier B.V. All rights reserved.