1. Center for Advanced Photovoltaics, Department of Electrical
Engineering and Computer Science, South Dakota State University, Brookings, South Dakota 57007, United States
2. Shanghai Electrochemical Energy Devices
Research Center, School of Chemistry and Chemical Engineering and
State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, People’s Republic of China
3. Functional and Renewable Energy Materials
Laboratory, Department of Physics, Indian Institute of Technology, Ropar, Punjab 140 001, India