Affiliation: | 1. Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong, SAR China;2. School of Materials Science and Engineering, Shaanxi Normal University, Xi'an, China;3. Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore;4. Testing & Analysis Center, Soochow University, Suzhou, China;5. College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, China |