[18p-P09-1~54] 12.5 Organic and hybrid solar cells

English Presentation

[18p-P09-15] Preparation of quasi-2D Sn-based perovskites for photovoltaic cells (Ⅱ)
-Effect of nitrogen-containing additives on stability-

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

Keywords:

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

Sn-based perovskite solar cells (PSCs) are non-toxic solar cells and have attracted much attention to replace lead-based PSCs. Sn-based perovskites face challenges, notably their stability due to the rapid oxidation of Sn²⁺ to Sn⁴⁺. This research aims to address these stability issues by investigating additives that can stabilize Sn²⁺ within the perovskite structure. To enhance stability, this study proposes additives that form strong coordination bonds with Sn²⁺ and possess numerous lone electron pairs.