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Updated: Dec 12, 2025

Low Pressure Vapor-assisted Solution Process for Tunable Band Gap Pinhole-free Methylammonium Lead Halide Perovskite Films
Published on: September 8, 2017
Simple one-step synthesis of a two-dimensional perovskite consisting of perfluoroalkyl-based ammonium spacers using
Naoyuki Nishimura1, Masahiro Tojo, Yuko Takeoka
1Marketing & Innovation, Asahi Kasei Corporation, 2-1 Samejima, Fuji, Shizuoka 416-8501, Japan. nishimura.nj@om.asahi-kasei.co.jp.
Abstract:
Acetone, regarded as a poor solvent for perovskite materials, was found to be suitable for synthesis of the perfluoroalkyl-based two-dimensional (2D) perovskite (C3F7CH2NH3)2PbBr4. One-step synthesis gave this material as a pure phase exhibiting quantum- and dielectric-confinement effects. However, N,N-dimethylformamide (DMF), a traditional perovskite solvent, did not produce these properties.
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