Effectively enhanced photoluminescence of CePO_(4):Tb^(3+)nanorods combined with carbon dots  

作　　者：Yanyan Wang Dan Yue Boshi Tian Weidong Li Bing Zhang Liu Yang Yue Li Zhenling Wang Yilei Zhang 

机构地区：[1]Henan International Joint Laboratory of Rare Earth Composite Materials,College of Materials Engineering,Henan Key Laboratory of Electronic Ceramic Materials and Application,Henan University of Engineering,Xinzheng 451191,China [2]College of Chemistry,Zhengzhou University,Zhengzhou 450001,China [3]Henan Key Laboratory of Rare Earth Functional Materials,Zhoukou Normal University,Zhoukou 466001,China [4]Civil&Mechanical Engineering,University of Canterbury,Christchurch,8140,New Zealand

出　　处：《Journal of Rare Earths》2022年第7期1007-1013,共7页稀土学报（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(51572303,52002117)。

摘　　要：CePO_(4):Tb^(3+)nanorods were successfully obtained via a simple hydrothermal method and combined with carbon dots(CDs)to obtain CDs@CePO_(4):Tb^(3+)nanorods.Due to the combination of CDs,the emission intensity of CDs@CePO_(4):Tb^(3+)nanorods increases about 92 times,compared with that of CePO_(4):Tb^(3+)nanorods.The combination of CDs and CePO_(4):Tb^(3+)nanorods was confirmed by Fourier transform infrared spectroscopy(FTIR),transmission electron microscopy(TEM),X-ray photoelectron spectroscopy(XPS)and so on.The mechanism of luminescence enhancement may be attributed to some aspects:the formation of hexagonal phase results in the increase of crystal field symmetry,and the energy transfer among CDs,Ce^(3+)and Tb^(3+)ions,which causes the Tb^(3+)ions in CDs@CePO_(4):Tb^(3+)nano rods to obtain mo re excited energy and less non-radiative atte nuation co mpared to CePO_(4):Tb^(3+)nano rods.The luminescence enhancement strategy through combination of CDs would provide a simple and effective approach for other rare earth ions doped luminescent materials.

关 键 词：CePO_(4) Rare earth ions DOPING Carbon dots Photoluminescence enhancement 

分 类 号：TB383.1[一般工业技术—材料科学与工程] O657.3[理学—分析化学]