1. Institute of Solar Energy and Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education), School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
2. Shanghai Non-carbon Energy Conversion and Utilization Institute, Shanghai 200240, P. R. China
3. Collaborative Innovation Center of Advanced Microstructures, Nanjing 210093, P. R. China