Preparation and Luminescence of Er3+ Doped Oxyfluoride Glass Ceramics Containing LaF3 Nanocrystals
来源期刊：JOURNAL OF RARE EARTHS2006年第1期
论文作者：Wang Minquan Qiao Xusheng Wang Jin Fan Xianping
Key words：glass ceramics; Er3+ ions; up-conversion and NIR emission; rare earths;
Abstract: Er3+ doped transparent oxyfluoride glass ceramics containing LaF3 nanocrystals were prepared and the up-con-version and near infrared luminescence behavior of Er3+ in glasses and glass ceramics were investigated. With increasing heat-treating time and temperature, the size (varied from 0 to 19 nm) and crystallinity (varied from 0 to 47%) of LaF3 nanocrystals in the glass ceramics are increased. The up-conversion luminescence intensity of Er3+ ions in the glass ceramics is much stronger than that in the glasses and increased significantly with increasing heat-treating time and temperature. The near infrared emission of Er3+ ions in the glass ceramics is found to be similar to that in the glasses.
Wang Minquan1，Qiao Xusheng1，Wang Jin1，Fan Xianping1
(1.Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China;
2.State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027, China)
Abstract:Er3+ doped transparent oxyfluoride glass ceramics containing LaF3 nanocrystals were prepared and the up-con-version and near infrared luminescence behavior of Er3+ in glasses and glass ceramics were investigated. With increasing heat-treating time and temperature, the size (varied from 0 to 19 nm) and crystallinity (varied from 0 to 47%) of LaF3 nanocrystals in the glass ceramics are increased. The up-conversion luminescence intensity of Er3+ ions in the glass ceramics is much stronger than that in the glasses and increased significantly with increasing heat-treating time and temperature. The near infrared emission of Er3+ ions in the glass ceramics is found to be similar to that in the glasses.
Key words:glass ceramics; Er3+ ions; up-conversion and NIR emission; rare earths;
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