Exploring ambient-stable lead-free (CH₃NH₃)₃Bi₂I₉ perovskites for solar cell applications.

ABSTRACT: Hybrid organic-inorganic perovskites, with power conversion efficiencies comparable to those of polycrystalline silicon-based counterparts, as well as tunable band gaps and low-temperature solution processability, represent a promising class of optoelectronic semiconductors suitable for next-generation electronics. In this work, we synthesised high-quality single-crystal and thin films of methylammonium bismuth iodide (MBI) using an antisolvent assisted method. The X-ray diffraction analysis showed a hexagonal crystal structure for the synthesised MBI crystal with space group P6₃/mmc. The bandgap of the MBI film estimated from the absorption spectra is 2.19 eV. The thermogravimetric analysis indicates that the thermal stability of MBI exceeds that of its constituents, thereby of

SUBMITTER: Thirantevda A 

PROVIDER: S-EPMC12528624 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature