Blue upconversion of cubic Gd2O3:Er produced by green laser

被引：77

作者：

Guo, H

Li, YF

Wang, DY

Zhang, WP ^{[1
]}

Yin, M

Lou, LR

Xia, SD

机构：

[1] Univ Sci & Technol China, Dept Phys, Hefei 230026, Anhui, Peoples R China

[2] Univ Sci & Technol China, Struct Res Lab, Acad Sinica, Hefei 230026, Anhui, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2004年 / 376卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

Gd2O3 : Er3+; sol-gel; blue upconversion;

D O I：

10.1016/j.jallcom.2003.12.020

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：

Erbium-doped cubic Gd2O3 particles were prepared by a simple sol-gel method. The upconversion luminescence spectra of Er3+ were investigated under excitation into the H-2(11/2) level by 514.5 nm Ar+ laser. The dependence of upconverted emissions on laser power, Er3+ ions concentration, and temperature were carried out to understand the blue upconversion mechanisms, and the results show that the excited state absorption (ESA) from S-4(3/2) to D-4(5/2) level and energy transfer (ET) process S-4(3/2) --> S-4(3/2) --> I-4(15/2) --> (4)G(9/2) are responsible for the phenomenon. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：23 / 27

页数：5

共 19 条

[11] Upconversion in Er3+:ZrO2 nanocrystals [J].