[11p-N322-1~15] 12.5 Organic solar cells

▼ [11p-N322-10] Diethylammonium iodide promoting grain growth in Lead-free Tin Halide perovskite

〇(DC)Zheng Zhang¹, Muhammad Kamarudin¹, Ajay Baranwal¹, Mengmeng Chen¹, Kenji Yoshino², Satoshi Iikubo³, Takashi Minemoto⁴, Qing Shen¹, Shuzi Hayase¹ (1.University of Electro-Communication, 2.Miyazaki University, 3.Kyushu University, 4.Ritsumeikan University)

Keywords:Tin halide perovskite, A site replacement, Diethylammonium iodide

We firstly introduced different proportion of Diethylammonium iodide (DEAI) to A site of the Tin halide perovskite layer to increase the crystal size and make better energy band level matching. As a result, the efficiency was enhanced from 7.31% without DEAI to 10.28% with DEAI.