Bright upconversion emission of Nd3+ in LiLa1-xNdxP4O12 nanocrystalline powders

被引：43
作者：
Marciniak, L. [1 ]
Strek, W. [1 ]
Bednarkiewicz, A. [1 ]
Lukowiak, A. [1 ]
Hreniak, D. [1 ]
机构：
[1] Polish Acad Sci, Inst Low Temp & Struct Res, Wroclaw, Poland
来源：
OPTICAL MATERIALS | 2011年 / 33卷 / 10期
关键词：
Tetraphosphate; Nanocrystals; Up-conversion; GEL THIN-FILMS; LASER; LINDP4O12; LUMINESCENCE; YELLOW; GLASS;
D O I：
10.1016/j.optmat.2011.03.005
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Upconversion emission of Nd3+ doped LiLa1-xNdxP4O12 nanocrystals powders upon irradiation with 808 nm laser diode has been investigated. This emission of bright orange color was dependent on concentration and excitation incident light intensity. It was found that this emission was threshold phenomenon characterized by long build-up times which were dependent on energy of upconversion emission, concentration of active ions, size of nanocrystalline grains and power of incident light. The mechanism of observed upconversion was discussed in terms of thermally stimulated avalanche process. The emission intensity bistability of upconversion emission was demonstrated. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：1492 / 1494
页数：3
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