1. Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
2. Department
of Chemistry, University of California, Berkeley, California 94720, United States
3. Materials
Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
4. Chemistry
Department, Brookhaven National Laboratory, Upton, New York 11973, United States
5. State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, People’s Republic of China