| Affiliation: | 1. Institute for Advanced Materials (IAM) Academy of Advanced Optoelectronics, South China Normal University, Guangzhou, China;2. School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou, China;3. Department of Physics Boston College, Chestnut Hill, Massachusetts, USA;4. Department of Physics and TcSUH, University of Houston, Houston, Texas, USA;5. NanoLab, Inc, Waltham, Massachusetts, USA;6. Department of Chemistry UAM, Poznan, Poland;7. Department of Physics Freie Universit?t Berlin Berlin 14195 , Germany Department of Physics, Freie Universit?t Berlin, Berlin, Germany |
