Electric Field-Induced Quenching of MAPbI₃ Photoluminescence in PeLED Architecture.

ABSTRACT: Photoluminescence (PL) measurements are a widely used technique for the investigation of perovskite-based materials and devices. Although electric field-induced PL quenching provides additional useful information, this phenomenon is quite complex and not yet clearly understood. Here, we address the PL quenching of methylammonium lead iodide (MAPbI₃) perovskite in a light-emitting diode (PeLED) architecture. We distinguish two quenching mechanisms: (a) indirect quenching by slow irreversible or partially reversible material changes that occur gradually under the applied light and electric field and (b) direct quenching by the influence of the electric field on the charge carrier densities, their spatial distributions, and radiative recombination rates. Direct quenching, observed

SUBMITTER: Gegevicius R 

PROVIDER: S-EPMC11007676 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature