Affiliation: | ZHAO GuoPing1,2,3*,ZHANG HuaiWu2,ZHONG ZhiYong2 & CHEN Lang3 1 College of Physics and Electronic Engineering,Sichuan Normal University,Chengdu 610066,China,2 State Key Laboratory of Electronic Thin Films and Integrated Devices,University of Electronic Science and Technology of China,Chengdu 610054,3 School of Materials Science and Engineering,Nanyang Technological University,Singapore 639798,Singapore |