[5p-PA3-1~46] 12.5 Organic solar cells

[5p-PA3-26] Application of Two-Dimensional Perovskite to Solar Cells (IV)
-Effect of A-site cation to FA-based quasi two-dimensional perovskites -

〇(M2)Ryuki Hamaguchi¹, Masahiro Fujita¹, Yuko Takeoka¹, Masahiro Rikukawa¹ (1.Sophia Univ.)

Keywords:perovskite solar cell, 2D perovskite, stability

Due to high moisture stability, quasi-2D (q-2D) perovskite compound, whose general formula is A₂B_n-1Pb_nX_3n+1, has attracted much attention as a perovskite solar cell (PSC) material. Recently, our group reported fabrication of q-2D perovskite whose B site cation is formamidine (FA). FA-based q-2D compounds showed higher photovoltaic properties than other homologous q-2D perovskites. Although FA-based q-2D perovskite shows promising possibilities, optical, structural and photovoltaic properties of these compounds are still unclear. Here, we investigate these properties of 10 types of FA-based q-2D perovskite compounds, which contains different A-site cations in detail to evaluate effect of A-site cation to q-2D perovskites.