Preparation and up-conversion characterization of CaF2:Yb3+, Ho3+/BaF2:Yb3+, Ho3+ co-doped glasses and glass-ceramics

被引：17

作者：

Hou, Zhao-xia ^{[1
]}

Li, Hang-xin ^{[1
]}

Xue, Zhao-lu ^{[1
]}

Wang, Mei-han ^{[1
]}

Hu, Xiao-dan ^{[1
]}

Wang, Shao-hong ^{[1
]}

机构：

[1] Shenyang Univ, Sch Mech Engn, Liaoning Prov Key Lab New Funct Mat & Technol, Shenyang 110044, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2015年 / 640卷

关键词：

Glasses; Glass-ceramics; Up-conversion; Yb3+/Ho3+ co-doped; Nanocrystals; LUMINESCENCE;

D O I：

10.1016/j.jallcom.2015.03.237

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Oxyfluoride tellurite glasses with compositions of TeO2-Al2O3-CaF2/BaF2-NaF-YbF3-xHoF(3) (x = 0.1, 0.3, 0.5, 1.0, 1.5, 2.0 mol%) were prepared by conventional melt-quenching method. Effect of heat-treatment schedules on crystallization behavior and microstructure were analyzed by differential scanning caborimetry, X-ray diffraction, infrared spectra and scanning electron microscopy. Cubic CaF2 and BaF2 nano-crystal phases were formed by controlling heat-treatment schedules. Up-conversion emission properties and mechanism of Yb3+ and Ho3+ ions in glasses and glass-ceramics were investigated. The green and red up-conversion emissions were observed under 980 nm LD excitation. Up-conversion luminescence intensity in glasses was obvious higher than that in glass-ceramics. And there existed concentration quenching effect among Ho3+ ions resulted from cross-relaxation. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：311 / 316

页数：6

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