Issue |
E3S Web Conf.
Volume 213, 2020
2nd International Conference on Applied Chemistry and Industrial Catalysis (ACIC 2020)
|
|
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Article Number | 01034 | |
Number of page(s) | 4 | |
Section | Industrial Catalysis and Chemical Substance R&D and Application | |
DOI | https://doi.org/10.1051/e3sconf/202021301034 | |
Published online | 01 December 2020 |
Preparation and spectroscopic properties of Ca2MgTeO6:Tm3+ blue-emitting tellurate phosphors
1
College of Chemistry&Biology and Environmental Engineering, Xiangnan University, Chenzhou 423043, Hunan, P. R. China
2
Hunan Provincial Key Laboratory of Xiangnan Rare-Precious Metals Compounds Research and Application, Chenzhou 423043, Hunan, P. R. China
* Corresponding author: dengbinxnu@163.com(Bin Deng)
Various novel Ca2MgTeO6:Tm3+ blue-emitting tellurate materials were synthesized via solid-state reaction. The structure and phase purity of prepared Ca2MgTeO6:xTm3+ (x = 0.0025-0.10 mol) were examined by X-ray powder diffraction. The Ca2MgTeO6:Tm3+ phosphors emit blue emission at 359 nm excitation. The optimum doping concentration was 0.02 mol. The concentration quenching mechanism in the Ca2MgTeO6 host was due to the electric dipole-dipole interaction. The The CIE chromaticity coordinates of Ca2MgTeO6:Tm3+ phosphors located in the blue region. These results validated the Ca2MgTeO6:Tm3+ tellurate phosphor can be used as good blue-emitting candidate for W-LEDs.
© The Authors, published by EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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