An Exploration of the Role of Acetamidinium Substitution in Methylammonium Lead Iodide Perovskites.

ABSTRACT: Halide perovskite (HP) versatility for optoelectronic and electrochemical applications is mainly due to their ability to engineer cation mixtures at the A-site within the ABX₃ stoichiometry. Acetamidinium (AC⁺) is a common cation used in these mixed compositions, but its effects on the material's properties have not been addressed in detail. In this work, prototypical methylammonium lead iodide (MAPbI₃) compositions partially substituted with AC⁺ are synthesized and analyzed for structural, electrical, optoelectronic, and stability properties. Results reveal a solubility limit of around 10% AC⁺, lower than encountered in the literature, with slight effects on the phase transition temperatures. As expected, substitution with AC⁺

SUBMITTER: Minussi FB 

PROVIDER: S-EPMC12810660 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature