Zailei Zhang1,2, Yu Bai1,2, Liang Xu1,2, Man Zhao1,2, Mingwei Shi1,2, Zhong Lin Wang1,2,3,4, Xianmao Lu1,2,3
1CAS Center for Excellence in Nanoscience, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 100083, China
2School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
3Center on Nanoenergy Research, School of Physical Science and Technology, Guangxi University, Nanning, Guangxi, 530004, PR China
4School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332-0245, USA