Microwave hydrothermal synthesis and white up-conversion emission of NaGd(WO4)2:(Yb3+/Tm3+/Ho3+) phosphors

被引：0

作者：

Huanzhi Xu

Kang Xu

Ading Lu

Xiaoyan Wang

Jiankun Hu

机构：

[1] National Engineering Research Center of Marine Facilities Aquaculture,Marine Science and Technology College of Zhejiang Ocean University

[2] Zhejiang Marine Development Research Institute,undefined

来源：

Journal of Materials Science: Materials in Electronics | 2015年 / 26卷

关键词：

Yb2O3; CaWO4; White Light Emission; Nonradiative Process; Tm2O3;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

NaGd(WO4)2:(Yb3+/Tm3+/Ho3+) phosphors were synthesized by the microwave hydrothermal process. In the synthesis, different amounts of glycerine were added. The samples were characterized by XRD, SEM, and fluorescence spectrometer. The XRD and SEM results indicate that the different amounts of glycerine in the synthesis have no obvious influence on crystallites, but have obvious influence on sizes. Under the 980 nm excitation, NaGd(WO4)2:(Yb3+/Tm3+/Ho3+) phosphors show three emission bands peaking at 476, 542 and 656 nm. The CIE chromaticity coordinates suggest that all samples show white light emission. Based on the luminescent properties of samples, the possible mechanisms for the white UC emission are speculated.

引用

页码：3921 / 3925

页数：4