Highly Efficient and Stable FAPbI₃ Perovskite Solar Cells and Modules Based on Exposure of the (011) Facet.

ABSTRACT: Perovskite crystal facets greatly impact the performance and stability of their corresponding photovoltaic devices. Compared to the (001) facet, the (011) facet yields better photoelectric properties, including higher conductivity and enhanced charge carrier mobility. Thus, achieving (011) facet-exposed films is a promising way to improve device performance. However, the growth of (011) facets is energetically unfavorable in FAPbI₃ perovskites due to the influence of methylammonium chloride additive. Here, 1-butyl-4-methylpyridinium chloride ([4MBP]Cl) was used to expose (011) facets. The [4MBP]⁺ cation selectively decreases the surface energy of the (011) facet enabling the growth of the (011) plane. The [4MBP]⁺ cation causes the perovskite nuclei to rotat

SUBMITTER: Zhang K 

PROVIDER: S-EPMC10225452 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature