1. Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, California94720, United States
2. Department of Materials Science and Engineering, University of California, Berkeley, California94720, United States
3. Department of Chemistry, University of California, Berkeley, California94720, United States
4. Liquid Sunlight Alliance and Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California94720, United States
5. Molecular Foundry, Energy Sciences Area, Lawrence Berkeley National Laboratory, Berkeley, California94720, United States