1. Department of Materials Science and Engineering & Center of Super‐Diamond and Advanced Films City University of Hong Kong 83 Tat Chee Avenue Hong Kong China
2. School of Energy and Environment City University of Hong Kong 83 Tat Chee Avenue Hong Kong China
3. Hefei National Research Center for Physical Sciences at the Microscale & Department of Materials Science and Engineering & CAS Key Laboratory of Materials for Energy Conversion & i‐ChEM University of Science and Technology of China Hefei Anhui 230026 China
4. Department of Mechanical Engineering City University of Hong Kong 83 Tat Chee Avenue Hong Kong China