ArticleScience advances2024
Using an external electric field to tune active layer morphology enabling high-efficiency organic solar cells via ambient blade coating.
Article in Science advances, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Sonication-induced J-aggregation in nonhalogenated solvents boosts exciton delocalization for high-efficiency organic solar cells.Nature communications · 2025Article
- Suppression of exciton-vibration coupling via modulated insulator dilution for thickness-tolerant organic solar cells.National science review · 2025Article
- Sustainable eco-friendly printing of high-performance large-area organic photovoltaics via enhanced Laplace pressure gradient.Nature communications · 2025Article
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Authors and funding
13 authors.
Funding
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Abstract
The nanoscale morphology of the photoactive layer notably impacts the performance of organic solar cells (OSCs). Conventional methods to tune the morphology are typically chemical approaches that adjust the properties (such as solubility and miscibility) of the active components including donor, acceptor, and/or additive. Here, we demonstrate a completely different approach by applying an external electric field (EEF) on the active layer during the wet coating. The EEF-coating method is perfectly compatible with an ambient blade coating using environmentally friendly solvents, which are essential requirements for industrial production of OSCs. A record 18.6% efficiency is achieved using the EEF coating, which is the best value for open-air, blade-coated OSCs to date. Our findings suggest broad material applicability and attribute-enhanced performance to EEF-induced fiber formation and long-range ordering of microstructures of acceptor domains. This technique offers an effective method for producing high-performance OSCs, especially suited for industry OSC production based on open-air printing.
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Registered trials
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