文献类型：会议论文

英文题名：Luminescence properties of Tb³⁺/Sm³⁺ co-doped 38B₂O₃-31Al₂O₃-31SrO glasses and glass ceramics

作者：Liang, Xiaoluan[1];Yang, Yunxia[1];Wang, Shufen[1];Chen, Guorong[1]

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

会议论文集：17th International Symposium on Non-Oxide and New Optical Glasses

会议日期：JUN 13-18, 2010

会议地点：Ningbo, PEOPLES R CHINA

语种：英文

外文关键词：Glass and glass ceramics; Photoluminescence; Rare earth ions; White light emitting diodes

摘要：In this paper, Tb3+/Sm3+ co-doped 38B(2)O(3)-31Al(2)O(3)-31SrO glass was successfully prepared. After heat treatment, single crystal phase SrAl2B2O7 was precipitated from the parent glass. DTA data showed the glass transition temperature at 625 degrees C and a sharp exothermic peak at 860 degrees C. XRD patterns demonstrated a regular evolution from glass to glass ceramics with higher treatment temperature and longer treatment time. From the XRD patterns, we supposed that Tb3+/Sm3+ ions can be most likely contained in the crystal phase. The photoluminescence spectra showed that the crystallization can enhance the emission intensity significantly and there could be an optimum crystallization degree to get the strongest luminescence in glass ceramics. The light scattering of devitrification sample can vary the intensity ratio of Sm3+ and Tb3+ emission. Therefore, as a potential route, rare earth ions doped glass ceramics could be a further research direction of luminescence glasses for white light emitting diodes application. (C) 2011 Elsevier B.V. All rights reserved.