"J. Lee,M. Hiramoto,S. Izawa","Simultaneous measurement of photocurrent and recombination emission in organic solar cell",,"Japanese Journal of Applied Physics",,"Vol. 61","No. 1","pp. 011001",2022,Jan. "Seiichiro Izawa,K. Uchida,M. Nakamura,K. Fujimoto,J. Roudin,J. Lee,T. Inuzuka,T. Nakamura,M. Sakamoto,Y. Nakayama,M. Hiramoto","Influence of N ]Substituents on Photovoltaic Properties of Singly Bay]Linked Dimeric Perylene Diimides",,"Chemistry ? A European Journal",,,,,2021,Sept.