文献类型：期刊文献

英文题名：Controlled growth and up-conversion luminescence of Y2O 2S:Er3+ phosphor with the addition of Bi2O 3

作者：Wu, Xuanshun[1]; Zeng, Huidan[1]; Yu, Qing[1]; Fan, Chaxing[1]; Ren, Jing[1]; Yuan, Shuanglong[1]; Sun, Luyi[2]

机构：[1] Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China; [2] Department of Chemistry and Biochemistry and Materials Science and Engineering Program, Texas State University-San Marcos, San Macros, TX 78666, United States

年份：2012

卷号：2

期号：25

起止页码：9660

外文期刊名：RSC Advances

收录：EI(收录号：20124115540184)

语种：英文

外文关键词：Erbium compounds - Luminescence - Particle size - Bismuth compounds - High temperature applications - Liquid phase sintering - Solid state reactions - Uranium compounds

摘要：By adding Bi2O3 in phosphor raw materials, fine particles (ca. 500 nm in diameter) have been synthesized for the first time in Y2O2S:Er3+via high-temperature solid-state reaction. The influence of Bi2O3 content on the crystal growth and up-conversion (UC) luminescence (excited at 1550 nm) of Y 2O2S:Er3+ phosphors was investigated by varying the Bi2O3 concentration from 0 to 10.0 mol%. As Bi 2O3 concentration was increased, the average particle size was increased and then decreased, and the uniformity of the particle size was descended and then enhanced. The size change of Bi2O3 doped Y2O2S:Er3+ phosphors can be well explained by the liquid phase sintering mechanism. Compared to the phosphors without containing any Bi2O3, UC luminescence intensity (excited at 1550 nm) of phosphors containing Bi2O3 decreased, but was still sufficiently strong to the naked eye. ? The Royal Society of Chemistry. 2012.