Affiliation: | 1. Department of Applied Chemistry, University of Tokyo, 7‐3‐1 Hongo, Bunkyo‐ku, Tokyo 113‐8656 (Japan), Fax: (+81)?3‐5452‐5748;2. ERATO/JST, Hashimoto Light Energy Conversion Project, University of Tokyo, 7‐3‐1 Hongo, Bunkyo‐ku, Tokyo 113‐8656 (Japan) |