1. Department of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States
2. Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
3. Department of Materials Science and Engineering, University of California, Berkeley, Berkeley, California 94720, United States
4. Kavli Energy NanoScience Institute, Berkeley, California 94720, United States
5. National Center for Electron Microscopy, Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
6. Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060, United States
7. The Raymond and Beverly Sackler Center of Computational Molecular and Materials Science, Tel Aviv University, Tel Aviv 69978, Israel