作者单位:LIU Hong,XIANG Xiang-rong,AN Shen-jing,LIU Xiao-dong,OU Wen-yong(Chongqing Materials Research Institute,The National Engineering and Technology Research Center for Instrument Functional Materials, Chongqing 400700, China)刘虹,向祥蓉,安身景,刘小东,欧文永(重庆材料研究院国家仪表功能材料工程技术研究中心,重庆400700)