1. Joint Center for Artificial Photosynthesis Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
2. The Molecular Foundry Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
3. Department of Chemistry University of California Berkeley CA 94720 USA
4. Department of Chemical and Biomolecular Engineering University of California Berkeley CA 94720 USA
5. Energy Storage and Distributed Resources Division Lawrence Berkeley National Laboratory Berkeley CA 94720 USA