文献类型：期刊文献

英文题名：Highly enhanced luminescence of Tb³⁺-activated gadolinium oxysulfide phosphor by doping with Zn²⁺ ions

作者：Wang, Fei[1];Yang, Bin[1];Zhang, Jinchao[2];Dai, Yongnian[1];Ma, Wenhui[1]

机构：[1]Kunming Univ Sci & Technol, Natl Engn Lab Vacuum Met, Kunming 650093, Peoples R China;[2]E China Univ Sci & Technol, Dept Inorgan Mat, Shanghai 200237, Peoples R China

年份：2010

卷号：130

期号：3

起止页码：473

外文期刊名：JOURNAL OF LUMINESCENCE

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000273914900023)】；

语种：英文

外文关键词：Gd2O2S:Tb; Phosphor; Zinc oxide; Crystal structure; Luminescent properties

摘要：Gd2O2S:Tb phosphor were synthesized by co-precipitation method combined with solid-state reactions. The brightness of terbium-activated gadolinium oxysulfide phosphors were enhanced and size distributions were controlled by doping the phosphor with a specific amount of zinc oxide. By the analysis of X-ray diffractions, the excitation spectrum and emission spectrum, it can be confirmed that no new phase was introduced and lattice size was diminished. In this way, it may ease access to energy transfer between Gd3+ ions and Tb3+ ions as well as Tb3+ ions and Tb3+ ions. Therefore, self-sensitizations of Tb3+ ions can be enhanced, D-5(4)-F-7(J) transitions were further improved and D-5(4)-F-7(J) transitions were lowered. The enhancement of luminescent properties including brightness and chroma purity were also confirmed due to incorporations of Zn2+ ions. (C) 2009 Elsevier B.V. All rights reserved.