Luminescence mechanism of ZnWO4 nanopowder synthesized by microwave-assisted heating

被引：0
|
作者：
Tsai, Ming-Kwen [1 ]
Lee, Yueh-Chien [1 ]
Huang, Chia-Chih [1 ]
Hu, Sheng-Yao [2 ]
Tiong, Kwong-Kau [3 ]
Hong, Bo-Yao [3 ]
机构：
[1] Tungnan Univ, Dept Elect Engn, New Taipei City 22202, Taiwan
[2] Tung Fang Design Univ, Dept Digital Technol Design, Kaohsiung 82941, Taiwan
[3] Natl Taiwan Ocean Univ, Dept Elect Engn, Keelung 20224, Taiwan
来源：
MECHANICAL ENGINEERING, MATERIALS SCIENCE AND CIVIL ENGINEERING II | 2014年 / 470卷
关键词：
Zinc tungstate; Nanopowders; Photoluminescence; CRYSTALS; POWDERS;
D O I：
10.4028/www.scientific.net/AMM.470.44
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The luminescence investigations on the calcinated zinc tungstate nanopowder (ZnWO4 NP) synthesized by microwave-assisted synthesis are presented using photoluminescence (PL) and time-resolved photoluminescence (TRPL) analyses. The X-ray diffraction (XRD) patterns exhibit that the significant wolframite structure of ZnWO4 NP can be detected at calcination temperatures above 300 degrees C. The 12 K PL and TRPL results demonstrated that the deformation of WO6 octahedra is responsible for the low-energy side of PL spectra and dominate the red-shifted PL spectra with increasing calcination temperatures.
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页码：44 / +
页数：2
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