Color tunable upconversion emission in CeO_2:Yb,Er three-dimensional ordered macroporous materials

作     者：程彦敏 杨正文 廖佳燕 邱建备 宋志国 杨勇 CHENG Yanmin;YANG Zhengwen;LIAO Jiayan;QIU Jianbei;SONG Zhiguo;YANG Yong

作者机构：College of Materials Science and Engineering Kunming University of Science and Technology 

出 版 物：《Journal of Rare Earths》 (稀土学报（英文版）)

年 卷 期：2015年第33卷第6期

页      面：599-603页

核心收录：

学科分类：081702[工学-化学工艺] 0709[理学-地质学] 0819[工学-矿业工程] 08[工学] 0817[工学-化学工程与技术] 0708[理学-地球物理学] 0703[理学-化学] 

基　　金：supported by the Reserve Talents Project of Yunnan Province(2013HB068) Applied Basic Research Program of Yunnan Province(2014FB127) 

主　　题：three-dimensional ordered macroporous materials CeO2:Yb,Er upconversion emission color tunability rare earths 

摘      要：The three-dimensional ordered macroporous CeO2：Yb,Er materials were prepared, and the influence of doping concentra- tion of Yb3＋ or Er3＋ ions on upconversion property was investigated. Green and red upconversion emissions were observed under the excitation of 980 nm at room temperature. It was found that the ratio of red to green upconversion emission intensity increased with increasing of concentration of the Yb3＋ or Er3＋ ions in the three-dimensional ordered macroporous CeO2：Yb,Er materials. When the concentration of Yb3＋ was 10 mol%, pure red upconversion emission was obtained. The varied mechanism of ratio of red to green upconversion emission intensity was discussed with the concentration of Yb3＋ or Er3＋ ions.