Simultaneous structure and luminescence property control of barium carbonate nanocrystals through small amount of lanthanide doping

作     者：Jianmin Gu Zhenpan Bian Baipeng Yin Cuihong Jin Xin Liu Yahui Gao Jingxiao Wu Shoufeng Tang Faming Gao Yong Sheng Zhao 

作者机构：Hebei Key Laboratory of Applied Chemistry School of Environmental and Chemical Engineering Yanshan University Key Laboratory of Photochemistry Institute of Chemistry Chinese Academy of Sciences 

出 版 物：《Science Bulletin》 (科学通报（英文版）)

年 卷 期：2017年第62卷第18期

页      面：1239-1244页

核心收录：

学科分类：081702[工学-化学工艺] 07[理学] 070205[理学-凝聚态物理] 08[工学] 0817[工学-化学工程与技术] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：supported by the National Natural Science Foundation of China (21403189, 21371149) Natural Science Foundation of Hebei Province (B2017203198) China Postdoctoral Science Foundation (2014M551047) Yanshan University Doctoral Foundation (B790) 

主　　题：Lanthanide doping Small amount of doping Structure control Luminescence property Barium carbonate nanocrystals 

摘      要：Rare earth doping has been widely applied in many functional nanomaterials with desirable properties and functions,which would have a significant effect on the growth process of the ***,the controlling strategy is limited into high concentration of lanthanide doping,which produces concentration quenching of the lanthanide ion luminescence with an increase in the Ln^(3+)concentration,resulting in lowering the fluorescence quantum yield of lanthanide ***,for the first time,we demonstrate simultaneous control of the structures and luminescence properties of BaCO_3nanocrystals via a small amount of Tb^(3+)doping *** fact,Tb^(3+)would partially occupy Ba^(2+)sites,resulting in the changes to the structures of the BaCO_3nanocrystals,which is primarily determined by charge modulation,including the contributions from the surfaces of crystal nuclei and building *** structurally modified nanocrystals exhibit tunable luminescence properties,thus emerging as potential candidates for photonic devices such as light-emitting diodes and color displays.