[23p-22C-1~12] 12.5 Organic and hybrid solar cells

4:00 PM - 4:15 PM JST(7:00 AM - 7:15 AM UTC)English Presentation

[23p-22C-11] Preparation of quasi-2D Sn-based perovskites for photovoltaic cells (I) -Effect of B site cations

〇(D)Chunqing Li¹, Masatoshi Yanagida², Yasuhiro Shirai², Masahiro Fujita¹, Masahiro Rikukawa¹, Yuko Takeoka¹ (1.Sophia Univ., 2.NIMS)

Keywords:

Perovskite solar cells,quasi-2D perovskite,Sn-based perovskite

Sn-based perovskite solar cells (PSCs) are non-toxic solar cells and have attracted much attention to replace lead-based PSCs. While Pb-based quasi-two-dimensional (q-2D) perovskites are well-researched, the structure and stability of Sn-based q-2D perovskites have not been determined yet. In this study, with the aim of clarifying the influence of organic cations on structure of q-2D Sn-based perovskites, (A)₂BSn₂I₇ (A= CH₃(CH₂)₃NH₃⁺; B= CH₃NH₃⁺, CH(NH₂)₂⁺, Cs⁺) were fabricated, structure and optical properties of perovskites were investigated.