Preparation and luminescence properties of Eu3+ doped oxyfluoride borosilicate glass ceramics

被引：0

作者：

李艳红 ^{[1
]}

赵丽 ^{[1
]}

张永明 ^{[1
]}

马晶 ^{[1
]}

机构：

[1] School of Materials Science and Engineering,Shenyang University of Chemical Technology

来源：

Journal of Rare Earths | 2012年 / 30卷 / 12期

关键词：

oxyfluoride; glass ceramics; luminescence; local environment; rare earths;

D O I：

暂无

中图分类号：

TQ174.1 [基础理论];

学科分类号：

0805 ; 080502 ;

摘要：

Oxyfluoride borosilicate glass with the molar composition of 60SiO2-15B2O3-15Na2O-8CaF2-2NaF-0.25Eu2O3 was synthesized by a traditional glass melting method. Glass ceramics containing CaF2 nanocrystals were prepared by heat treating the glass samples at a tem-perature in the range of 620-680 °C. The results of X-ray diffraction (XRD) indicated that the average crystallite size and the lattice constant of CaF2 nanocrystals increased with the heat treatment temperature increasing. The luminescence spectra showed that the emission intensity of Eu3+ doped glass ceramics was stronger than that of the glass matrix, and increased with the heat treatment temperature increasing. The left edge of excitation band shifted to shorter wavelength in the glass ceramics. The local environments of Eu3+ ions in the glass and glass ceram-ics were different.

引用

页码：1195 / 1198

页数：4

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