Upconversion emission of a novel glass ceramic containing Er3+:: BaYF5 nano-crystals

被引：44

作者：

Liu, Feng ^{[1
]}

Wang, Yuansheng ^{[1
]}

Chen, Daqin ^{[1
]}

Yu, Yunlong ^{[1
]}

Ma, En ^{[1
]}

Zhou, Lihua ^{[1
]}

Huang, Ping ^{[1
]}

机构：

[1] Chinese Acad Sci, Grad Sch, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fujian 350002, Peoples R China

来源：

MATERIALS LETTERS | 2007年 / 61卷 / 28期

基金：

中国国家自然科学基金;

关键词：

nanocomposites; optical materials and properties; glass ceramic;

D O I：

10.1016/j.matlet.2007.03.089

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In order to develop highly efficient upconversion (UC) material, Er (3+)-doped oxyfluoride glass ceramics containing BaYF5 nano-crystals were fabricated for the first time. The randomly distributed BaYF5 nano-particles with the size of nearly 25 run precipitated from the glass matrix at about 700 degrees C, then tended to aggregate slightly with the increase of heating temperature, resulting in the enhancement of Er3+ UC emission in the wavelength ranging from 500 nm to 700 nm. The UC process was found very sensitive to Er3+ content: with the increase of Er3+ content from 0.5% to 1.0%, the UC intensity behaved with drastic exaltation; while further increasing Er3+ content to 2.0% resulted in a notable fluorescence quenching. Significantly, the UC efficiency of present glass ceramic preponderates notably over that of the previously reported glass ceramic containing LaF3, implying its superior UC potentiality. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：5022 / 5025

页数：4

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