Recipe for the design of mixed cation lead halide perovskites: adsorption and charge transfer from A-site cations to PbI₂

Abstract

The mixture of different A-site cations in lead halide perovskites is an effective method to stabilize the phase and improve reproducibility together with a promoted efficiency of power conversion. However,...

Mechanism of Interaction of Water above the Methylammonium Lead Iodide Perovskite Nanocluster: Size Effect and Water-Induced Defective States

“…Hybrid organic–inorganic perovskites (HOIPs) stand out as the most promising materials for next-generation solar cells due to their combination of low cost, high efficiency, easily tunable bandgap, extensive exciton diffusion length, and remarkable charge-carrier mobility. − A HOIP follows the formula ABX 3 , where A represents an organic cation, B denotes a metal cation (i.e., Pb and Sn), and X signifies an anion (halogen). Among all the HOIP materials, methylammonium lead iodide MAPbI 3 perovskite, where MA denotes CH 3 NH 3 + , has attracted significant attention because of its exceptional light-absorbing characteristics.…”