2:30 PM - 2:45 PM [15p-303-5] Singlet Fission Character of Semiconducting Polymers in Organic Photovoltaics Analysed by Magnetic Field Dependence of Photocurrent 〇Ayaka Saito1, So Kawata1, Yong-Jin Pu1,2 (1.Yamagata Univ., 2.PRESTO, JST)