文献类型：期刊文献

英文题名：Photoluminescence properties of silica xerogels Co-doped with Eu3+ ions and CdS nanoparticles

作者：Mu, Jin[1]; Xu, Leihua[1]; Li, Xiangqing[1]; Xu, Zhizhen[1]; Wei, Qinglian[1]; Sun, Hua[1]; Kang, Shizhao[1]

机构：[1] Department of Chemistry, East China University of Science and Technology, 130 Meilong Rd., Shanghai 200237, China

年份：2006

卷号：27

期号：2

起止页码：235

外文期刊名：Journal of Dispersion Science and Technology

收录：EI(收录号：2006059670839)

语种：英文

外文关键词：Cadmium sulfide - Doping (additives) - Europium - Heat treatment - Hydrolysis - Nanostructured materials - Photoluminescence - Positive ions - Thermal effects

摘要：Silica xerogels doped with Eu3+ ions and co-doped with Eu3+ ions and CdS nanoparticles were prepared using a two-step hydrolysis process. The effect of temperature on photoluminescence properties of Eu3+-doped silica xerogel was investigated. The results showed that the photoluminescence of Eu3+-doped silica xerogel was significantly dependent on the temperature of heat treatment. The study of the photoluminescence of co-doped xerogels showed that the defect emission of silica was weakened due to competition among defects, CdS nanoparticles, and Eu3+ ions. Copyright ? Taylor & Francis, Inc.