1. School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore
2. Energy Research Institute @ NTU (ERI@N), Interdisciplinary Graduate Programme, Nanyang Technological University, Singapore 637553, Singapore
3. Key Laboratory for Computational Physical Sciences (MOE), Key State Key Laboratory of ASIC and System and School of Microelectronics, Fudan University, Shanghai 200433, China
4. School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
5. Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
6. Institute of Materials Research and Engineering (IMRE), Agency of Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Singapore 138634, Singapore
7. Singapore-HUJ Alliance for Research and Enterprise (SHARE), Nanomaterials for Energy and Energy-Water Nexus (NEW), Campus for Research Excellence and Technological Enterprise (CREATE), Singapore 138602, Singapore