[18p-M_101-1~7] 12.8 Specific theme: Photoelectric Properties, Device Fabrication and Structural Controls of Organic-Inorganic Hybrid Perovskites

3:15 PM - 3:30 PM JST(6:15 AM - 6:30 AM UTC)

[18p-M_101-5] Elemental Substitution Effects in Lead Halide–Based 2D Layered Hybrid Perovskite Thin Films Fabricated by the Langmuir–Blodgett Method

〇Yasuhiro Miura¹, Shota Hoshino¹, Yoshiya Akagi¹, Naoki Shimosako², Tetsuya Aoyama³, Yuko Takeoka⁴ (1.Hamamatsu Univ. Sch. Med., 2.Shizuoka Univ., 3.RIKEN RAP, 4.Sophia Univ.)

Keywords:

Langmuir-Blodgett method,2D layered hybrid perovskite,Intercalation

We have reported that 2D layered hybrid perovskite (2D LHP) films based on lead iodide can be fabricated by immersing alkylamine Langmuir–Blodgett (LB) films in an aqueous solution containing PbI₂ and HI. We also reported that exposure of these films to HBr or HCl vapor enables halogen substitution, leading to the formation of mixed-halide systems. In this study, we further demonstrate that similar elemental substitution proceeds in lead bromide-based 2D LHP films upon exposure to HCl vapor, resulting in the formation of mixed-halide 2D LHP films.