期刊
MATERIALS RESEARCH BULLETIN
卷 44, 期 7, 页码 1576-1580出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.materresbull.2009.01.024
关键词
Optical materials; X-ray diffraction; Microstructure; Luminescence
资金
- National 863 Project of China [2002AA324030]
- Scientific Foundation of Education Department of Hunan Province, China [06C818]
- Hunan Provincial Innovation Foundation For Postgraduate [S2008YJSCX12]
Tm3+ and Er3+ codoped oxyfluoride samples were synthesized by high temperature solid-state reaction. Intense upconversion white light of Tm3+ and Er3+ codoped oxyfluoride was observed under the excitation of a 980-nm infrared laser diode, which was composed of three primary colors, i.e., blue (from Tm3+), green (from Er3+), and red emissions (from Tm3+ and Er3+). The optimal white upconversion light, which is close to the standard achromatic point, was achieved firstly by phase transition from PbO to PbO2. The scanning electron microscopy, X-ray diffraction and Commission Internationale d'Eclairage chromaticity analysis revealed the dependence of the white upconversion light both on microstructure and Er3+ content. The sample with white upconversion light close to the standard achromatic point has potential applications in the fields of the three-dimensional solid-state display and multicolor backlight. Crown Copyright (c) 2009 Published by Elsevier Ltd. All rights reserved.
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