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Title: Sr{sub 2}CaW{sub x}Mo{sub 1−x}O{sub 6}:Eu{sup 3+}, Li{sup +}: An emission tunable phosphor through site symmetry and excitation wavelength

Abstract

The emission of Eu{sup 3+} doped Sr{sub 2}CaW{sub x}Mo{sub 1−x}O{sub 6} phosphors could be tunable by the site symmetry of the activators and the excitation wavelengths. - Highlights: • The emission of Eu{sup 3+} depends on site symmetry and excitation wavelengths. • The color of the samples was tunable by structure and excitation wavelength. • The effect of W and Eu content on the properties of the samples was investigated. - Abstract: A series of Eu{sup 3+} substituted double-perovskite Sr{sub 2}CaW{sub x}Mo{sub 1−x}O{sub 6} phosphors were prepared by solid state reactions. The phase, photoluminescence and energy transfer of the phosphors were investigated by X-ray diffraction (XRD), photoluminescence (PL) and luminescence decay respectively. It is found that the emission of the Eu{sup 3+} substituted double perovskites depends on both the site symmetry of the activators and the excitation wavelengths. Based on the decay analysis of Sr{sub 2}CaW{sub x}Mo{sub 1−x}O{sub 6} matrix and Eu{sup 3+} doped samples, the energy transfer efficiencies between the host and activators Eu{sup 3+} were investigated. The results of the emission tunable phosphors indicate their potential applications in LEDs.

Authors:
; ; ; ; ; ; ;
Publication Date:
OSTI Identifier:
22475955
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin
Additional Journal Information:
Journal Volume: 70; Other Information: Copyright (c) 2015 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0025-5408
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CALCIUM COMPOUNDS; COLOR; DOPED MATERIALS; EFFICIENCY; ENERGY TRANSFER; EUROPIUM ADDITIONS; LITHIUM ADDITIONS; PEROVSKITE; PHOSPHORS; PHOTOLUMINESCENCE; SOLIDS; STRONTIUM COMPOUNDS; SYMMETRY; TUNGSTATES; X-RAY DIFFRACTION

Citation Formats

Xiao, Ning, Shen, Jun, Xiao, Tengjiao, Wu, Bing, Luo, Xiaobing, Li, Li, Wang, Zhongqing, and Zhou, Xianju, E-mail: zhouxj@cqupt.edu.cn. Sr{sub 2}CaW{sub x}Mo{sub 1−x}O{sub 6}:Eu{sup 3+}, Li{sup +}: An emission tunable phosphor through site symmetry and excitation wavelength. United States: N. p., 2015. Web. doi:10.1016/J.MATERRESBULL.2015.06.001.
Xiao, Ning, Shen, Jun, Xiao, Tengjiao, Wu, Bing, Luo, Xiaobing, Li, Li, Wang, Zhongqing, & Zhou, Xianju, E-mail: zhouxj@cqupt.edu.cn. Sr{sub 2}CaW{sub x}Mo{sub 1−x}O{sub 6}:Eu{sup 3+}, Li{sup +}: An emission tunable phosphor through site symmetry and excitation wavelength. United States. doi:10.1016/J.MATERRESBULL.2015.06.001.
Xiao, Ning, Shen, Jun, Xiao, Tengjiao, Wu, Bing, Luo, Xiaobing, Li, Li, Wang, Zhongqing, and Zhou, Xianju, E-mail: zhouxj@cqupt.edu.cn. Thu . "Sr{sub 2}CaW{sub x}Mo{sub 1−x}O{sub 6}:Eu{sup 3+}, Li{sup +}: An emission tunable phosphor through site symmetry and excitation wavelength". United States. doi:10.1016/J.MATERRESBULL.2015.06.001.
@article{osti_22475955,
title = {Sr{sub 2}CaW{sub x}Mo{sub 1−x}O{sub 6}:Eu{sup 3+}, Li{sup +}: An emission tunable phosphor through site symmetry and excitation wavelength},
author = {Xiao, Ning and Shen, Jun and Xiao, Tengjiao and Wu, Bing and Luo, Xiaobing and Li, Li and Wang, Zhongqing and Zhou, Xianju, E-mail: zhouxj@cqupt.edu.cn},
abstractNote = {The emission of Eu{sup 3+} doped Sr{sub 2}CaW{sub x}Mo{sub 1−x}O{sub 6} phosphors could be tunable by the site symmetry of the activators and the excitation wavelengths. - Highlights: • The emission of Eu{sup 3+} depends on site symmetry and excitation wavelengths. • The color of the samples was tunable by structure and excitation wavelength. • The effect of W and Eu content on the properties of the samples was investigated. - Abstract: A series of Eu{sup 3+} substituted double-perovskite Sr{sub 2}CaW{sub x}Mo{sub 1−x}O{sub 6} phosphors were prepared by solid state reactions. The phase, photoluminescence and energy transfer of the phosphors were investigated by X-ray diffraction (XRD), photoluminescence (PL) and luminescence decay respectively. It is found that the emission of the Eu{sup 3+} substituted double perovskites depends on both the site symmetry of the activators and the excitation wavelengths. Based on the decay analysis of Sr{sub 2}CaW{sub x}Mo{sub 1−x}O{sub 6} matrix and Eu{sup 3+} doped samples, the energy transfer efficiencies between the host and activators Eu{sup 3+} were investigated. The results of the emission tunable phosphors indicate their potential applications in LEDs.},
doi = {10.1016/J.MATERRESBULL.2015.06.001},
journal = {Materials Research Bulletin},
issn = {0025-5408},
number = ,
volume = 70,
place = {United States},
year = {2015},
month = {10}
}