Up-Scalable Fabrication of SnO₂ with Multifunctional Interface for High Performance Perovskite Solar Modules.

ABSTRACT: Tin dioxide (SnO₂) has been demonstrated as one of the promising electron transport layers for high-efficiency perovskite solar cells (PSCs). However, scalable fabrication of SnO₂ films with uniform coverage, desirable thickness and a low defect density in perovskite solar modules (PSMs) is still challenging. Here, we report preparation of high-quality large-area SnO₂ films by chemical bath deposition (CBD) with the addition of KMnO₄. The strong oxidizing nature of KMnO₄ promotes the conversion from Sn(II) to Sn(VI), leading to reduced trap defects and a higher carrier mobility of SnO₂. In addition, K ions diffuse into the perovskite film resulting in larger grain sizes, passivated grain boundaries, and reduced hysteresis of

SUBMITTER: Tong G 

PROVIDER: S-EPMC8271052 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature