1. Center of Super‐Diamond and Advanced Films (COSDAF)Department of ChemistryCity University of Hong Kong 83 Tat Chee Avenue Kowloon Hong Kong SAR, P. R. China
2. Key Laboratory of Molecular Medicine and BiotherapySchool of Life SciencesBeijing Institute of Technology Beijing 100081 P. R. China
3. Mr. and Mrs. Ko Chi‐Ming Centre for Parkinson's Disease ResearchSchool of Chinese MedicineHong Kong Baptist University Kowloon Tong Hong Kong SAR, P. R. China
4. Center of Super‐Diamond and Advanced Films (COSDAF)Department of Materials Science and EngineeringCity University of Hong Kong 83 Tat Chee Avenue Kowloon Hong Kong SAR, P. R. China
5. Technical Institute of Physics and ChemistryChinese Academy of Sciences Beijing 100190 P. R. China