Robust, High-Performing Maize-Perovskite-Based Solar Cells with Improved Stability.

ABSTRACT: Herein, we focus on improving the long-term chemical and thermomechanical stability of perovskite solar cells (PSCs), two major challenges currently limiting their commercial deployment. Our strategy incorporates a long-chain starch polymer into the perovskite precursor. The starch polymer confers multiple beneficial effects by forming hydrogen bonds with the methylammonium iodide precursor, templating perovskite growth that results in a compact and homogeneous film deposited in a simple one-step coating (antisolvent-free). The inclusion of starch in the methylammonium lead iodide films strongly improves their thermomechanical and environmental stability while maintaining a high photovoltaic performance. The fracture energy (G _c) of the film is increased to above 5 J/m

SUBMITTER: Giuri A 

PROVIDER: S-EPMC9342243 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature