Polar Solvent Vapour Induced Photo-Physical Properties on the Solid-State Organometallic Halide Perovskite Nanocrystals

TL;DR

This study investigates how polar solvent vapours influence the photo-physical properties of solid-state organometallic halide perovskite nanocrystals, affecting their grain size and photoluminescence, with implications for optoelectronic applications.

Contribution

It introduces a theoretical and experimental analysis of polar solvents' effects on perovskite nanocrystals, highlighting solvent-induced changes in photoluminescence and quantum confinement.

Findings

Certain polar solvents significantly enhance photoluminescence.

Solvent properties influence grain size and quantum confinement effects.

Density functional theory supports solvent-perovskite interactions.

Abstract

The optoelectric applications, light emitters and photovoltaics, with organometallic halide perovskite materials have been decided by dynamics of charge carriers in grains on the polycrystalline thin films. Especially, polar solvent vapour recrystallizes perovskites and changes their grain sizes. In this paper, various polar solvents were evaluated with density functional theory calculation. And a stociometric treatment with these solvents which enhanced photoluminescence intensity was established. The properties of solvents which caused dramatic photoluminescence enhancement and quantum confinement effect were discussed.