1. School of Engineering University of California Merced CA 95343 USA
2. Molecular Foundry Lawrence Berkeley National Lab Berkeley CA 94720 USA
3. Physical Science and Engineering Division King Abdullah University of Science and Technology Thuwal 23955‐6900 Saudi Arabia
4. Department of Electronic Optical and Nanomaterials Sandia National Lab Albuquerque NM 87106 USA
5. Chemical Sciences Division and Joint Center for Artificial Photosynthesis Lawrence Berkeley National Lab Berkeley CA 94720 USA
6. School of Engineering and Applied Science Yale University New Haven CT 06520 USA