Strong green upconversion emission from Er3+-Yb3+-Mo6+ tridoped ZrO2

被引：14

作者：

Cong, Yan ^{[1
]}

Liu, Dan ^{[1
]}

Yu, Naisen ^{[1
]}

Xiao, Yu ^{[1
]}

Yang, Qi ^{[1
]}

Fu, Yue ^{[1
]}

机构：

[1] Dalian Nationalities Univ, Sch Phys & Mat Engn, Dalian 116600, Peoples R China

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2014年 / 144卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Luminescence; Oxides; Phase transitions; Optical properties; SOL-GEL METHOD; NANOCRYSTALLINE YTTRIA; LUMINESCENCE; STABILIZATION; ZIRCONIA;

D O I：

10.1016/j.matchemphys.2014.01.017

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Intense green upconversion (UC) emission has been obtained from Er-Yb-Mo tridoped ZrO2. The effect of different doping agents on the crystalline structure of the materials was investigated by XRD. Phase transformation from monoclinic to tetragonal ZrO2 occurred due to doping an appropriate amount of oversized trivalent cations and generating oxygen ion vacancies. Green UC emission in Er3+ doped ZrO2 and red UC emission in Er3+-Yb3+ codoped ZrO2 were observed upon 980 nm excitation. Remarkably, enhancement of the green UC emission as much as 20 times was achieved by tridoping with Er3+-Yb3+-Mo6+ ions in ZrO2. The high efficiency of the UC can be attributed to a novel energy transfer process in which Yb3+-MoO42- sensitized Er3+ ions at (IF7/2)-F-2, T-1(1)) excited state. (C( 2014 Elsevier B.V. All rights reserved.

引用

页码：440 / 443

页数：4

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