[17p-P10-1~17] 12.5 Organic solar cells

[17p-P10-4] In-situ measurement of radiative recombination in organic solar cell

〇(D)JiHyun Lee^1,2, Hiramoto Masahiro^1,2, Izawa Seiichiro^1,2 (1.IMS, 2.SOKENDAI)

Keywords:Organic solar cells, Recombination

Charge transfer (CT) state recombination that causes voltage loss in organic solar cells includes radiative and non-radiative recombination. Radiative recombination was observed in-situ to predict the current-voltage characteristics excluding non-radiative recombination. Steep CT quenching was observed near the open circuit voltage as a result of the voltage dependence of the CT emission of a typical bulk heterojunction organic solar cell. From this result, the ideal current-voltage curve of an organic solar cell can be predicted.