1. Joint Center for Artificial Photosynthesis, California Institute of Technology, Pasadena, California 91125, United States
2. Materials and Process Simulation Center, California Institute of Technology, Pasadena, California 91125, United States
3. Joint Center for Artificial Photosynthesis, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
4. Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
5. Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States