The Preparation and Photoluminescence Properties of Fluorosilicate Glass Ceramics Containing CeF3:Dy3+ Nanocrystals

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2012,（1）
• 页码范围: 250-253
• 页数: 4页
• 语种: 英文
• DOI: 10.1088/0256-307X/29/1/017802

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 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℃.