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Synthesis, Thermal Stability and Photoluminescence Properties of NaLaMgWO6:Sm3+ Phosphors
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Yu WANG, Xiaohui WANG, Guifang Li
Journal of the Chinese Ceramic Society | 2020, 48(3) : 447 - 454
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Journal of the Chinese Ceramic Society | 2020, 48(3): 447-454
Synthesis, Thermal Stability and Photoluminescence Properties of NaLaMgWO6:Sm3+ Phosphors
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Yu WANG, Xiaohui WANG, Guifang Li
Affiliations
  • School of Advanced Materials and Nano Technology, Xidian University, Xi'an, 710071, China
  • WANG Yu (1991-), male, Master candidate. E-mail:

About Author:

WANG Yu (1991-), male, Master candidate. E-mail:

Published: 2020-03-20 doi: 10.14062/j.issn.0454-5648.20190394
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A series of orange red-emitting NaLa1-xSmxMgWO6 phosphors were synthesized by a conventional solid-state reaction method. The crystal structure, microstructure, luminescence properties and thermal stability were investigated. The results show that NaLa1-xSmxMgWO6 crystals form in a monoclinic structure with a space group of C2/m. Under an excitation at 406 nm, the emission spectra of NaLa1-xSmxMgWO6 phosphors exhibit a most intense red emission peak at 645 nm, corresponding to the 4G5/2→6H9/2 transition of Sm3+. The photoluminescence intensity of the sample firstly increases and then decreases with the increase of Sm3+ doping concentration. The optimal concentration of Sm3+ appears at x=0.05. The mechanism of energy transfer between Sm3+ is proved to be dipole-dipole interaction based on the analysis of the concentration quenching curve. In addition, the temperature quenching behavior was also investigated according to the Arrhenius equation, and the results reveal that the quenching process of 4G5/2 can be ascribed to the crossover process, and the calculated activation energy is 0.326 eV.

phosphor  /  photoluminescence  /  thermal stability  /  white light emitting diodes
王雨, 王潇慧, 李桂芳. NaLaMgWO6:Sm3+荧光材料的制备及其热稳定性与发光性能. 硅酸盐学报, 2020 , 48 (3) : 447 -454 . DOI: 10.14062/j.issn.0454-5648.20190394
Yu WANG, Xiaohui WANG, Guifang Li. Synthesis, Thermal Stability and Photoluminescence Properties of NaLaMgWO6:Sm3+ Phosphors[J]. Journal of the Chinese Ceramic Society, 2020 , 48 (3) : 447 -454 . DOI: 10.14062/j.issn.0454-5648.20190394
Year 2020 volume 48 Issue 3
27
4
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Article Info
doi: 10.14062/j.issn.0454-5648.20190394
  • Receive Date:2019-06-11
  • Online Date:2026-10-29
  • Published:2020-03-20
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  • Received:2019-06-11
  • Revised:2019-08-08
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    School of Advanced Materials and Nano Technology, Xidian University, Xi'an, 710071, China

Corresponding:

LI Guifang (1978-), female, Ph.D., Associate Professor. E-mail:
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表12种不同金属材料的力学参数
科
Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)
属
Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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