Effects of lutetium doping on the X-ray-excited luminescence properties of the tungstate Zn1−x Lu x WO4
详细信息 查看全文
- 作者：H. Ait Ahsaine ; M. Zbair ; M. Ezahri ; A. Benlhachemi…
- 关键词：Zinc tungstate ; Crystal structure ; X ; ray luminescence ; Lutetium doping
- 刊名：Research on Chemical Intermediates
- 出版年：2017
- 出版时间：February 2017
- 年：2017
- 卷：43
- 期：2
- 页码：885-899
- 全文大小：
- 刊物类别：Chemistry and Materials Science
- 刊物主题：Catalysis; Physical Chemistry; Inorganic Chemistry;
- 出版者：Springer Netherlands
- ISSN：1568-5675
- 卷排序：43
文摘
Polycrystalline samples in the lutetium-doped zinc tungstate system Zn1−xLuxWO4 with 0 ≤ x ≤ 0.08 were synthesized using the coprecipitation method followed by thermal treatment at 1000 °C during 4 h. The polycrystalline samples were characterized by X-ray diffraction analysis, scanning electron microscopy (SEM), infrared spectroscopy, and luminescence analysis under X-ray excitation. Rietveld analyses were performed. The variation of the wolframite structure cell parameters in the range 0 ≤ x ≤ 0.05 were congruent with substitution of Zn2+ by Lu3+. SEM micrographs of the obtained samples presented improved crystallization with morphology depending on the lutetium fraction. The luminescence spectra obtained under X-ray excitation (E < 40 keV) were in the blue–green region, and their intensity increased with x up to x = 0.05. The differences in the intensities of the X-ray luminescence spectra could be related to additional cation vacancies resulting from substitution of Zn2+ by Lu3+.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |