Enhanced luminescence in transparent glass ceramics containing BaYF5: Ce3+ nanocrystals

被引：35

作者：

Huang, Shiming ^{[1
]}

Gao, Qingchun ^{[1
]}

Gu, Mu ^{[1
]}

机构：

[1] Tongji Univ, Shanghai Key Lab Special Artificial Microstruct M, Dept Phys, Shanghai 200092, Peoples R China

来源：

JOURNAL OF LUMINESCENCE | 2012年 / 132卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Glass; Glass Ceramics; Luminescent Properties; OXYFLUORIDE SCINTILLATING GLASS; UP-CONVERSION; DEPENDENCE; IONS; YB3+; EU;

D O I：

10.1016/j.jlumin.2011.11.002

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Ce3+ doped transparent glass ceramics containing BaYF5 nanocrystals were prepared by controlled heat treatment of 45SiO(2)-15Al(2)O(3)-10Na(2)O-24BaF(2)-6Y(2)O(3)-0.5Ce(2)O(3) (mol%) glass. X-ray diffraction and transmission electron microscopy data have revealed the formation of BaYF5 nanocrystals. Both photoluminescence and X-ray excited luminescence spectra have shown a blue-shift of the emission band of Ce3+ on ceramization, which is consistent with the Ce3+ environment evolving from a glassy oxide to a fluoride phase. The luminescent intensity of Ce3+ ions in the transparent glass ceramics is greatly enhanced compared with the precursor glass under ultraviolet and X-ray excitation. This could be attributed to the Ce3+ ions present in the BaYF5 crystalline phase. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：750 / 754

页数：5

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