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Photonic nanostructures mimicking floral epidermis for perovskite solar cells

ABSTRACT: Summary Here, we report photonic nanostructures replicated from the adaxial epidermis of flower petals onto light-polymerized coatings using low-cost nanoimprint lithography at ambient temperature. These multifunctional nanocoatings are applied to confer enhanced light trapping, water repellence, and UV light and environmental moisture protection features in perovskite solar cells. The former feature helps attain a maximum power conversion efficiency of 24.61% (21.01% for the reference cell) without any additional device optimization. Added to these merits, the nanocoatings also enable stable operation under AM 1.5G and UV light continuous illumination or in real-world conditions. Our engineering approach provides a simple way to produce multifunctional nanocoatings optimized by nature’s wisdom. Graphical abstract Highlights • Petal-inspired photonic nanostructures are replicated in light-polymerized coatings• Antireflection and superhydrophobic function of conical structures• Perovskite solar cell (PSC) efficiency of 24.2% with coatings• UV light and environmental stability in PSCs were achieved Here, Vasilopoulou et al. report petal-inspired light-polymerized nanocoatings with light trapping, water repellence, and UV light and environmental moisture protection properties in perovskite solar cells (PSCs). The coatings increase power conversion efficiency to 24.61% and enable stable operation under AM 1.5G and UV light continuous illumination.

SUBMITTER: Vasilopoulou M

PROVIDER: S-EPMC9492859 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature

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