Synthesis and optical characterization of perovskite layer for solar cell application

TL;DR

This study demonstrates how solvent engineering, specifically using DMF, can reduce the band gap and reflectance of perovskite films, potentially enhancing solar cell efficiency.

Contribution

It introduces a solvent engineering approach to optimize perovskite film properties for improved solar cell performance.

Findings

DMF solvent reduces band gap by 0.24 eV compared to IPA

DMF-based films show lower solar spectrum reflectance

Solvent engineering improves film morphology and optical properties

Abstract

Solvent engineering offers fine control over the photovoltaic efficiency, film morphology, and crystallization quality of perovskite films and also enables to optimize light transmittance and absorbance in solar cell applications. In the present work, the band gap and reflectance were reduced through solvent engineering. We found that perovskite thin films produced using DMF (Dimethyl formamide) solvent had a band gap that was 0.24 eV less than those produced using IPA (Isopropyl Alcohol) solvent. Perovskite thin films produced using DMF solvent also exhibited considerably lower solar spectrum reflectance.