Modifying morphology and defects of low-dimensional, semi-transparent perovskite thin films solvent type.

(PEA)(MA) Pb I Br perovskites are semi-transparent, color-tunable thin films with broader band gaps. They have the potential for semi-transparent solar cell and smart window applications. Solvent engineering significantly alters the morphology, absorbance, crystallinity, charge separation, and defects, thereby influencing the optoelectronic properties.