Molten-salt synthesis and composition-dependent luminescent properties of barium tungsto-molybdate-based solid solution phosphors

doi:10.1088/1674-1056/25/2/027802

中国物理B ›› 2016, Vol. 25 ›› Issue (2): 27802-027802.doi: 10.1088/1674-1056/25/2/027802

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇下一篇

Molten-salt synthesis and composition-dependent luminescent properties of barium tungsto-molybdate-based solid solution phosphors

Xiang-Hong He(贺香红), Zhao-Lian Ye(叶招莲), Ming-Yun Guan(关明云), Ning Lian(连宁), Jian-Hua Sun(孙建华)

1. School of Chemistry and Environmental Engineering, Jiangsu University of Technology, Changzhou 213001, China;
2. Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC), School of Environment Science and Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, China

收稿日期:2015-07-24 修回日期:2015-09-20 出版日期:2016-02-05 发布日期:2016-02-05
通讯作者: Xiang-Hong He E-mail:hexh@jsut.edu.cn
基金资助:
Project supported by the Construction Fund for Science and Technology Innovation Group from Jiangsu University of Technology, China, the Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, China (Grant No. KHK1409), the Priority Academic Program Development of Jiangsu Higher Education Institutions, China, and the National Natural Science Foundation of China (Grant No. 21373103).

Molten-salt synthesis and composition-dependent luminescent properties of barium tungsto-molybdate-based solid solution phosphors

Xiang-Hong He(贺香红)¹, Zhao-Lian Ye(叶招莲)^1,2, Ming-Yun Guan(关明云)¹, Ning Lian(连宁)¹, Jian-Hua Sun(孙建华)¹

1. School of Chemistry and Environmental Engineering, Jiangsu University of Technology, Changzhou 213001, China;
2. Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC), School of Environment Science and Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, China

Received:2015-07-24 Revised:2015-09-20 Online:2016-02-05 Published:2016-02-05
Contact: Xiang-Hong He E-mail:hexh@jsut.edu.cn
Supported by:
Project supported by the Construction Fund for Science and Technology Innovation Group from Jiangsu University of Technology, China, the Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, China (Grant No. KHK1409), the Priority Academic Program Development of Jiangsu Higher Education Institutions, China, and the National Natural Science Foundation of China (Grant No. 21373103).

摘要/Abstract

摘要： Pr³⁺-activated barium tungsto-molybdate solid solution phosphor Ba(Mo_1-zW_z)O₄:Pr³⁺ is successfully fabricated via a facile molten-salt approach. The as-synthesized microcrystal is of truncated octahedron and exhibits deep-red-emitting upon blue light excitation. Powder x-ray diffraction and Raman spectroscopy techniques are utilized to investigate the formation of solid solution phosphor. The luminescence behaviors depend on the resulting composition of the microcrystals with fixed Pr³⁺-doping concentration, while the host lattices remain in a scheelite structure. The forming solid solution via the substitution of [WO₄] for [MoO₄] can significantly enhance its luminescence, which may be due to the fact that Ba(Mo_1-zW_z)O₄:Pr³⁺ owns well-defined facets and uniform morphologies. Owing to its properties of high phase purity, well-defined facets, highly uniform morphologies, exceptional chemical and thermal stabilities, and stronger emission intensity, the resulting solid solution phosphor is expected to find potential applications in phosphor-converted white light-emitting diodes (LEDs).

关键词: molten-salt, barium tungsto-molybdate microcrystals, solid solution, deep-red-emitting

Abstract: Pr³⁺-activated barium tungsto-molybdate solid solution phosphor Ba(Mo_1-zW_z)O₄:Pr³⁺ is successfully fabricated via a facile molten-salt approach. The as-synthesized microcrystal is of truncated octahedron and exhibits deep-red-emitting upon blue light excitation. Powder x-ray diffraction and Raman spectroscopy techniques are utilized to investigate the formation of solid solution phosphor. The luminescence behaviors depend on the resulting composition of the microcrystals with fixed Pr³⁺-doping concentration, while the host lattices remain in a scheelite structure. The forming solid solution via the substitution of [WO₄] for [MoO₄] can significantly enhance its luminescence, which may be due to the fact that Ba(Mo_1-zW_z)O₄:Pr³⁺ owns well-defined facets and uniform morphologies. Owing to its properties of high phase purity, well-defined facets, highly uniform morphologies, exceptional chemical and thermal stabilities, and stronger emission intensity, the resulting solid solution phosphor is expected to find potential applications in phosphor-converted white light-emitting diodes (LEDs).

Key words: molten-salt, barium tungsto-molybdate microcrystals, solid solution, deep-red-emitting

中图分类号: (Photoluminescence, properties and materials)

78.55.-m

33.50.Dq (Fluorescence and phosphorescence spectra) 78.30.-j (Infrared and Raman spectra) 61.05.cp (X-ray diffraction)

贺香红, 叶招莲, 关明云, 连宁, 孙建华. Molten-salt synthesis and composition-dependent luminescent properties of barium tungsto-molybdate-based solid solution phosphors[J]. 中国物理B, 2016, 25(2): 27802-027802.

Xiang-Hong He(贺香红), Zhao-Lian Ye(叶招莲), Ming-Yun Guan(关明云), Ning Lian(连宁), Jian-Hua Sun(孙建华). Molten-salt synthesis and composition-dependent luminescent properties of barium tungsto-molybdate-based solid solution phosphors[J]. Chin. Phys. B, 2016, 25(2): 27802-027802.

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Molten-salt synthesis and composition-dependent luminescent properties of barium tungsto-molybdate-based solid solution phosphors

Molten-salt synthesis and composition-dependent luminescent properties of barium tungsto-molybdate-based solid solution phosphors

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