1. Thomas J. Watson Laboratory of Applied Physics, California Institute of Technology, Pasadena, California 91125, United States
2. Joint Center for Artificial Photosynthesis, California Institute of Technology, Pasadena, California 91125, United States
3. Center for Condensed Matter Sciences, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan
4. Center of Atomic Initiative for New Materials, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan
5. Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
6. Department of Physics, University of California, Berkeley, California 94720, United States
7. Joint Center for Artificial Photosynthesis, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
8. Department of Physics, California Institute of Technology, Pasadena, California 91125, United States
9. The Resnick Sustainability Institute, California Institute of Technology, Pasadena, California 91125 United States
10. Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
11. Kavli Energy NanoSciences Institute at Berkeley, Berkeley, California 94720, United States