1. Chemical Sciences Division and Joint Center for Artificial Photosynthesis Lawrence Berkeley National Laboratory 1 Cyclotron Road Berkeley CA 94720 USA
2. Walter Schottky Institut and Physik Department Technische Universität München Am Coulombwall 4 Garching 85748 Germany
3. Departamento de Ciencias Físicas Universidad Andres Bello Santiago 837‐0136 Chile
4. Advanced Light Source Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
5. The Molecular Foundry Lawrence Berkeley National Laboratory Berkeley CA 94720 USA