1. Key
Laboratory for Renewable Energy, Chinese Academy of Sciences; Beijing
Key Laboratory for New Energy Materials and Devices; Beijing National
Laboratory for Condensed Matter Physics; Institute of Physics, Chinese Academy of Sciences, PO Box 603, Beijing 100190, China
2. Department
of Chemistry, Brookhaven National Laboratory, Upton, New York 11973, United States
3. X-ray
Science Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439, United States
4. Laboratory for Advanced Materials & Electron Microscopy, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, PO Box 603, Beijing 100190, China