1. Department of Chemical and Biomolecular Engineering and College of Chemistry, University of California, Berkeley, California 94720, United States
2. Joint Center for Energy Storage Research, Argonne National Laboratory, Lemont, Illinois 60439, United States
3. Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
4. Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853, United States
5. The Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
6. Applied Science and Technology Graduate Group, University of California, Berkeley, California 94720, United States