講演情報
[9p-P06-16]Influence of Diammonium Spacer Structure on the Properties of 2D and Quasi-2D Dion–Jacobson Tin Perovskites
〇(D)Chunqing Li1, Hirona Kobayashi1, Masatoshi Yanagida2, Yasuhiro Shirai2, Masahiro Fujita1, Masahiro Rikukawa1, Yuko Takeoka1 (1.Sophia University, 2.NIMS)
キーワード：
Perovskite solar cells、Quasi-2D perovskite、Sn-based perovskite
The development of efficient and environmentally friendly lead-free perovskite solar cells remains a critical challenge in the field of photovoltaics. Two-dimensional (2D) and quasi-2D Dion–Jacobson (D–J) tin perovskites offer a promising solution due to their reduced ion migration and improved ambient stability. This study investigates two diammonium-based spacer cations with distinct molecular structures, 3-aminopyridine (3-AMPY) and 3-aminopiperidine (3-AMP), to examine how differences in ring rigidity, hydrogen bonding potential, and electron-donating functionality affect the phase formation, morphology, optical properties, and device performance of tin D–J perovskites.