,The Preparation and Photoluminescence Properties of Fluorosilicate Glass Ceramics Containing CeF3:D

• 作 者: WU Li-Ang FU Heng-Yi QIAN Jiang-Yun ZHAO Da-Liang LUO Qun QIAO Xu-Sheng FAN Xian-Ping ZHANG Xiang-Hua
• 机 构: Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027“,”UMR-CNRS 651
• 出 处: 中国物理快报（英文版）
• 发表日期: 2012年1期

Ce3+ and Dy3+ co-doped oxyfluoride glasses and glass ceramics containing CeF3 nanocrystals are prepared in a reducing atmosphere.XRD measurements and the calculated lattice parameters suggest that Dy3+ ions are incorporated with precipitated CeF3 nanocrystals along with a rise in the Dy3+ concentration or an increase in the annealing temperature.The glass ceramics emit white light close to the CIE coordinates of (0.3,0.3),derived from a combination of Ce3+ and Dy3+ emission.The CIE chromaticity coordinates of the Ce3+ and Dya+ codoped glass ceramics can be tuned by varying the ratio of Cea+ /Dy3+,while the luminescence intensity can be enhanced by heat treatment above 620℃.