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

[18p-P09-32] The Effect of Surface Modification of Electron Transport Layer on the Stability of α-FAPbI₃

〇(M2)Ryohei Wada¹, Tomoyuki Yamamoto¹ (1.Waseda Univ.)

Keywords:

perovskite solar cells,FAPbI3,surface modification

Perovskite solar cells are attracting attention as next-generation solar cells. FAPbI₃ (FA⁺: formamidinium ion, CH(NH₂)₂⁺) has been studied recently as a light-absorbing material. The stable phase of FAPbI₃ at room temperature in air is the non-photoactive δ phase, and it is necessary to maintain the photoactive α phase at room temperature in air. In this study, we evaluated the effect of surface modification of the SnO₂ electron transport layer on the stability of α-FAPbI₃.