1. Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water
Bay, Kowloon 999077, Hong Kong, China (SAR)
2. Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
3. Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, Guangdong, China
4. Department of Physics, The Hong Kong University of Science and Technology, Clear Water
Bay, Kowloon 999077, Hong Kong, China (SAR)