Luminescence behavior of Er3+ ions in glass-ceramics containing CaF2 nanocrystals

被引：111
|
作者：
Qiao, XS [1 ]
Fan, XP [1 ]
Wang, J [1 ]
Wang, MQ [1 ]
机构：
[1] Zhejiang Univ, Dept Mat Sci & Engn, Zhengzhou 310027, Peoples R China
来源：
JOURNAL OF NON-CRYSTALLINE SOLIDS | 2005年 / 351卷 / 05期
关键词：
D O I：
10.1016/j.jnoncrysol.2004.11.021
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The upconversion luminescence and near infrared luminescence of the Er3+ ions in transparent oxyfluoride glass-ceramics containing CaF2 nanocrystals have been investigated. The formation of CaF2 nanocrystals in the glass-ceramics was confirmed by XRD. The oscillator strengths for several transitions of the Er3+ ions in the glass and glass-ceramics have been obtained and then the Judd-Ofelt parameters were calculated. The split near infrared emission peaks of the Er3+ ions in the glass-ceramics can be observed because the Er3+ ions have been incorporated into crystalline environment of the CaF2 nanocrystals. The upconversion luminescence intensity of Er3+ ions in the glass-ceramics increased significantly with increasing heat treated time. The transition mechanism of the upconversion luminescence has been ascribed to a two-photon absorption process. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：357 / 363
页数：7
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