Citation: WU Jin-Xiu, LI Mei, LIU Zhao-Gang, HU Yan-Hong, WANG Mi-Tang. Effects of Doped Concentration and Calcination Temperature on Luminescence Properties of Ca_1-xSm_xWO₄ Phosphors[J]. Chinese Journal of Inorganic Chemistry, ;2016, 32(1): 34-42. doi: 10.11862/CJIC.2016.018 shu

Effects of Doped Concentration and Calcination Temperature on Luminescence Properties of Ca_1-xSm_xWO₄ Phosphors

WU Jin-Xiu ^1,2,3,*,, ,
LI Mei ^1,2 ,
LIU Zhao-Gang ^1,2 ,
HU Yan-Hong ^1,2 ,
WANG Mi-Tang ^1,2

1.
College of Materials and Metallurgy, Inner Mongolia University of Science and Technology Baotou, Inner Mongolia 014010, China
2.
Key Laboratory of Inner Mongolia Autonomous University on New Technologies of Modern Metallurgy and Application of Rare Earth, Baotou, Inner Mongolia 014010, China
3.
Inner Mongolia Key Laboratory for Utilization of Bayan Obo Multi-Metallic Resources, Elected State Key Laboratory,Baotou, Inner Mongolia 014010, China

Corresponding author: WU Jin-Xiu, wujinxiu888@126.com
Received Date: 22 April 2015
Revised Date: 10 November 2015

Figures(11)

The Ca_1-xSm_xWO₄ phosphors with different doping concentrations and different sintered temperatures were synthesized by hydrothermal method. The phase structure，morphology, luminescent properties and quantum efficiency of the as-synthesized samples were characterized by X-ray diffraction，fourier transform infrared spectroscopy, scanning electron microscope, fluorescence spectrophotometer respectively and Fluoromax-4. The results showed that all the phases were indexed to scheelite structure. The emission spectra of Ca_1-xSm_xWO₄ phosphors exhibit three main peaks assigned to the ⁴G_5/2→6⁶H_J/2 (J=5，7，9) transitions of Sm³⁺ under 405 nm excited radiation, the dominating emission peaks at 566, 606, 650 nm. The luminescence intensity firstly increases with increasing of Sm³⁺ mole fraction, and then decreases. Experiments show that the best Sm³⁺ doping concentration is 1%. The energy transfer type between Sm³⁺ ions was determined to be the exchange interaction and the critical energy transfer distance (D_c) was calculated to be 2.46 nm.
- CaWO₄: Sm³⁺,
- hydrothermal method,
- photoluminescence
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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Effects of Doped Concentration and Calcination Temperature on Luminescence Properties of Ca1-xSmxWO4 Phosphors

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通讯作者: 陈斌, bchen63@163.com

Effects of Doped Concentration and Calcination Temperature on Luminescence Properties of Ca_1-xSm_xWO₄ Phosphors