Two-Dimensional Cs₃Sb₂I_9-xCl_x Film with (201) Preferred Orientation for Efficient Perovskite Solar Cells.

ABSTRACT: All-inorganic Sb-perovskite has become a promising material for solar cell applications owing to its air stability and nontoxic lead-free constitution. However, the poor morphology and unexpected (001) orientation of Sb-based perovskite films strongly hinder the improvement of efficiency. In this work, two-dimensional Cs₃Sb₂Cl_xI_9-x with (201) preferred orientation has been successfully fabricated by introducing thiourea (TU) to the precursor solution. The presence of the C=S functional group in TU regulates the crystallization dynamics of Cs₃Sb₂I_9-xCl_x films and generates the (201) preferred orientation of Cs₃Sb₂Cl_xI_9-x films, which could effectively improve t

SUBMITTER: Li J 

PROVIDER: S-EPMC9032497 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature