[7a-A501-1~11] 12.5 Organic solar cells

[7a-A501-7] Application of Two-Dimensional Perovskites Having Functional Amines to Solar Cells (I)- Effects of Introduction of Amines Having Carboxy Group-

〇(M1)ryosuke arai¹, masahiro fujita¹, yuko takeoka¹, masahiro rikukawa¹ (1.Sophia univ.)

Keywords:perovskite solar cells, two-dimensional perovskites, orientation

Two-dimensional perovskite compounds are excellent in stability and can be expected to be applied to long-lived perovskite solar cells. By introducing a carboxy group at the terminal of alkylammonium used for general two-dimensional perovskite, it was revealed that phase transition was suppressed, and crystals were randomly oriented while maintaining the exciton physical properties. (7-AHA)₂(MA)_m-1Pb_mI_3m+1 were prepared by using HOOC(CH₂)₆NH₃I (7-AHAI) and CH₃NH₃I (MAI). Multilayered structures (m = 2, 3) were confirmed by XRD measurements. Each compound was introduced into solar cells, and photovoltaic properties were evaluated.