[15p-A401-1~17] 12.5 Organic and hybrid solar cells

△ [15p-A401-14] Perovskite solar cells with obliquely oriented 2D/3D heterostructures

〇Genya Uzurano¹, Kentaro Abe¹, Tomoki Saito¹, Shogo Miyake¹, Daizo Hishida², Yuko Takeoka², Akihiko Fujii¹, Masanori Ozaki¹ (1.Osaka Univ., 2.Sophia Univ.)

Keywords:two-dimensional perovskite, stability, carrier transport

2D/3D perovskite heterostructure solar cells with orientation controlled 2D perovskite were characterized. Horizontally oriented 2D perovskites inhibited charge transport in the solar cells, resulting in a decrease in power conversion efficiency, while obliquely oriented 2D perovskites realized efficient charge transport and suppressed the decrease in power conversion efficiency. This indicates that orientation control of 2D perovskite is effective in realizing high conversion efficiency and improving the stability of the solar cell.