Long-range charge carrier mobility in metal halide perovskite thin-films and single crystals via transient photo-conductivity.

ABSTRACT: Charge carrier mobility is a fundamental property of semiconductor materials that governs many electronic device characteristics. For metal halide perovskites, a wide range of charge carrier mobilities have been reported using different techniques. Mobilities are often estimated via transient methods assuming an initial charge carrier population after pulsed photoexcitation and measurement of photoconductivity via non-contact or contact techniques. For nanosecond to millisecond transient methods, early-time recombination and exciton-to-free-carrier ratio hinder accurate determination of free-carrier population after photoexcitation. By considering both effects, we estimate long-range charge carrier mobilities over a wide range of photoexcitation densities via transient photoconductivity me

SUBMITTER: Lim J 

PROVIDER: S-EPMC9300620 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature