1. School of Materials Science and EngineeringNanyang Technological University 50 Nanyang Avenue Singapore 639798 Singapore
2. School of Optoelectronic Engineering and Instrumentation ScienceDalian University of Technology Dalian 116024 China
3. 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