[17p-PB2-1~8] 12.8 Specific theme: Photoelectric Properties, Device Fabrication and Structural Controls of Organic-Inorganic Hybrid Perovskites

[17p-PB2-2] Crystal Structures and Photophysical Properties of Two-Dimensional Perovskites with Nitrogen-Containing Aromatic Cations

〇(M1)Hayato Tanaka¹, Woojin Cho¹, Yuki Miyake¹, Tomoya Nakamura¹, Minh Anh Truong¹, Richard Murdey¹, Atsushi Wakamiya¹ (1.Institute for Chemical Research, Kyoto Univ.)

Keywords:

Two-dimensional perovskites,Dion-Jacobson,Nitrogen-containing aromatics

Dion–Jacobson two-dimensional perovskites, APbBr₄, were synthesized using nitrogen-containing aromatic cations—2,2’-biimidazolium, 4,4’-biimidazolium, 2,2’-bipyrazinium, and 2,2’-bipyrimidinium. In this presentation, we discuss how differences in molecular structures, including ring size and nitrogen substitution positions, influence the interlayer spacing, distortion of the inorganic octahedra, and the optical properties.