The Preparation and Photoluminescence Properties of Fluorosilicate Glass Ceramics Containing CeF3:Dy3+ Nanocrystals
WU Li-Ang1, FU Heng-Yi1, QIAN Jiang-Yun1, ZHAO Da-Liang1, LUO Qun1, QIAO Xu-Sheng1**, FAN Xian-Ping1, ZHANG Xiang-Hua2
1Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027 2UMR-CNRS 6512 Verres & Ceramiques, Institut de Chimie de Rennes, Universite de Rennes 1, Campus de Beaulieu, 35042 Rennes Cedex, France
The Preparation and Photoluminescence Properties of Fluorosilicate Glass Ceramics Containing CeF3:Dy3+ Nanocrystals
WU Li-Ang1, FU Heng-Yi1, QIAN Jiang-Yun1, ZHAO Da-Liang1, LUO Qun1, QIAO Xu-Sheng1**, FAN Xian-Ping1, ZHANG Xiang-Hua2
1Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027 2UMR-CNRS 6512 Verres & Ceramiques, Institut de Chimie de Rennes, Universite de Rennes 1, Campus de Beaulieu, 35042 Rennes Cedex, France
摘要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 Dy3+ co−doped glass ceramics can be tuned by varying the ratio of Ce3+/Dy3+, while the luminescence intensity can be enhanced by heat treatment above 620°C.
Abstract：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 Dy3+ co−doped glass ceramics can be tuned by varying the ratio of Ce3+/Dy3+, while the luminescence intensity can be enhanced by heat treatment above 620°C.
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