Luminescence properties of M3(VO4)2:Eu3+(M = Ca, Sr, Ba) phosphors
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- 作者：Xiaoyun Mi ; Hui Shi ; Zan Wang ; Lingjie Xie ; Hongyan Zhou…
- 刊名：Journal of Materials Science
- 出版年：2016
- 出版时间：April 2016
- 年：2016
- 卷：51
- 期：7
- 页码：3545-3554
- 全文大小：3,141 KB
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Hui Shi (2)
Zan Wang (2)
Lingjie Xie (2)
Hongyan Zhou (2)
Jiangang Su (2)
Jun Lin (1)
1. State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, People’s Republic of China
2. School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun, 130022, People’s Republic of China - 刊物类别：Chemistry and Materials Science
- 刊物主题：Chemistry
Materials Science
Characterization and Evaluation Materials
Polymer Sciences
Continuum Mechanics and Mechanics of Materials
Crystallography
Mechanics - 出版者：Springer Netherlands
- ISSN：1573-4803
文摘
In this paper, M3(VO4)2:Eu3+(M = Ca, Sr, Ba) phosphors have been synthesized by high-temperature solid-state method. The phase composition and luminescence properties of the synthesized phosphors were characterized by X-ray powder diffraction and photoluminescence (PL) spectra, respectively. The influences of fluxing agent and doped concentration of rare-earth ions on PL properties of the phosphor were investigated. The results indicated that the energy transfers between VO4 3− and Eu3+ in the host occurred mainly via a dipole–dipole interaction mechanism. The increase in cation radius (from Ca2+ to Ba2+) in the host causes the emission peak originated from 5D0 → 7F2 transition of Eu3+ shifting from 615 to 621 nm, as well as decreasing the fluorescence lifetimes of Eu3+ from 0.77 to 0.19 ms and changing the CIE chromaticity coordinates from the orange-red region to the white region. Moreover, the emission colors of Ba3−x (VO4)2:xEu3+ can be firstly adjusted from cyan region to white light region via controlling the concentration of Eu3+. Temperature-dependent luminescence spectra proved the good thermal stability of the as-prepared phosphor. This work shows the potential application of europium-doped samples in UV converted pc-WLEDs.