[15a-A402-1~10] 12.5 Organic solar cells

[15a-A402-1] Hysteresis in perovskite solar cells and charge trap center density evaluated by EUPS

Saemi Takahashi¹, Tomoaki Ishitsuka², Nobuyuki Matsubayashi², 〇Toshihisa Tomie^2,3 (1.Univ. Tokyo GSAS, 2.AIST NERI, 3.CUST)

Keywords:perovskite solar cells, hysteresis, density of charge trap center

Five perovskite solar cell materials were observed by EUPS and good relation was observed between hytersis of current-voltage curves and the density of charge trapping centers estimated by the resistance analzing method using EUPS. From this fact, we can say hysteresis is caused by charge trapping centers.