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.

引用

页码：44 / +

页数：2

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