文献类型：期刊文献

英文题名：Luminescence properties of Tb3+ - Sm3+ codoped glasses for white light emitting diodes

作者：Liang, Xiaoluan[1]; Yang, Yunxia[1]; Zhu, Chaofeng[1]; Yuan, Shuanglong[1]; Chen, Guorong[1]; Pring, Allan[2]; Xia, Fang[3]

机构：[1] Key Laboratory for Ultrafine Materials, East China University of Science and Technology, Ministry of Education, Shanghai 200237, China; [2] Department of Mineralogy, South Australian Museum, North Terrace, Adelaide, SA 5000, Australia; [3] School of Chemical Engineering, University of Adelaide, Adelaide, SA 5005, Australia

年份：2007

卷号：91

期号：9

外文期刊名：Applied Physics Letters

收录：EI(收录号：20073610804494)

语种：英文

外文关键词：Doping (additives) - Energy transfer - Glass - Luminescence - Samarium - Spectroscopic analysis - Terbium - Ultraviolet radiation

摘要：Photoluminescence properties of silicate and borosilicate glasses codoped with Tb3+ and Sm3+ ions have been characterized by excitation and emission spectroscopies. When excited by ultraviolet light the glasses emit a combination of green and orange-red wavelengths giving white light. The ratio of the intensities of orange-red to green emissions can be tuned by varying both the concentration of the Sm3+ ion and an the composition of the glass matrix. The excitation and emission spectra show a self-quenching effect for the Sm3+ ions and an energy transfer from Tb3+ (D45) to Sm3+ (G 52 4). ? 2007 American Institute of Physics.