1. Department of Electrical and Electronic Engineering The University of Hong Kong Pokfulam Road Hong Kong China
2. Department of Electrical and Electronic Engineering Southern University of Science and Technology Shenzhen 518055 China
3. Department of Physics The Chinese University of Hong Kong Shatin Hong Kong China
4. College of Energy Soochow Institute for Energy and Materials InnovationS (SIEMIS) Soochow University Suzhou 215006 China
5. Department of Physics Hong Kong University of Science and Technology Clear Water Bay Hong Kong China
6. Guangdong‐Hong Kong‐Macao Joint Laboratory for Photonic‐Thermal‐Electrical Energy Materials and Devices Shenzhen 518055 China