Synthesis of high quality Ce：YAG nanopowders by graphene oxide nanosheet-assisted co-precipitation method

作     者：Cheng Ji Qiang Gao Peng Dai Liming Shen Xiaoyan Zhang Ningzhong Bao 

作者机构：State Key Laboratory of Materials-Oriented Chemical Engineering Nanjing Tech University Nanjing 210009 China Jiangnan Graphene Research Institute Changzhou 213149 China 

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

年 卷 期：2018年第36卷第2期

页      面：130-134页

核心收录：

学科分类：081702[工学-化学工艺] 08[工学] 0817[工学-化学工程与技术] 

基　　金：Project supported by the Natural Science Foundation of Jiangsu Province(BK20160093) the Natural Science Foundation of China(51425202) the Priority Academic Program Development of Jiangsu Higher Education Institutions(PAPD) 

主　　题：Ce:YAG GO Phosphor Photoluminescence Nanoparticles Rare earths 

摘      要：（Ce_（0.04）Y_（2.96））Al_5O_（12） phosphor nanoparticles were prepared by a modified co-precipitation method with graphene oxide（GO） nanosheets used as dispersing agent. The GO concentration is controlled at 0.0.005,0.01, 0.02, and 0.03 g/L. The addition of lamellar GO nanosheets in the precipitant solution possibly enhances both the dispersity of precursor particles and the crystallinity of phosphor nanoparticles. Pure Ce-doped YAG phase is obtained by calcining the precipitate at 1000 ℃ for 3 h. The（Ce_（0.04）Y_（2.96））Al_5 O_（12）phosphor nanoparticles have an average size of 64 nm and there is no significant change on particle size with increase of the GO concentration in precipitant solution. The luminescence property of（Ce_（0.04）Y_（2.96））Al_5O_（12） phosphor nanoparticles varies with different concentrations of GO. The photoluminescence emission intensity of the optimum sample with 0.02 g/L GO is about 1.6 times higher than the sample without using GO.