1. Mitsubishi Chemical Corporation Science & Innovation Center 1000 Kamoshida-cho, Aoba-ku, Yokohama-shi Kanagawa 227-8502 Japan
2. Japan Technological Research Association of Artificial Photosynthetic Chemical Process (ARPChem) 2-11-16 Yayoi, Bunkyo-ku Tokyo 113-8656 Japan
3. Research Initiative for Supra-Materials Shinshu University 4-17-1 Wakasato, Nagano-shi Nagano 380-8553 Japan
4. Research Institute for Material and Chemical Measurement, National Metrology Institute of Japan (NMIJ) National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba 1-1-1 Higashi, Tsukuba Ibaraki 305-8565 Japan
5. Global Zero Emission Research Center National Institute of Advanced Industrial Science and Technology, Tsukuba 16-1 Onogawa Ibaraki 305-8569 Japan
6. Graduate School of Nanobioscience Yokohama City University, Kanazawa-ku Yokohama 236-0027 Japan
7. Office of University Professors The University of Tokyo 2-11-16 Yayoi, Bunkyo-ku Tokyo 113-8656 Japan