ArticleNature communications2025
Tailored PEDOT:PSS phase segregation for high-efficiency flexible all-perovskite tandem solar cells and mini-modules.
Article in Nature communications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
What it found
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The trial behind it
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Who cites it
6 citing papers in PubMed.
- Interfacial Hydrogen Bonding for Efficient and Robust Flexible Tin Perovskite Solar Cells.Angewandte Chemie (International ed. in English) · 2026Article
- Buried-Interface Iodine Redox Regulation for Durable All-Perovskite Tandem Photovoltaics.Angewandte Chemie (International ed. in English) · 2026Article
- Organic and Perovskite Solar Cells with Printed Electrodes.Polymers · 2026Review
- Polyvinyl-based hole-transporting materials processed with non-destructive and green solvents for tin-lead perovskite solar cells and all-perovskite tandems.Chemical science · 2026Article
- Topology-Engineered Coordination Polymers for Enhanced Hole Transport in Organic Solar Cells.Angewandte Chemie (International ed. in English) · 2026Article
- Article
Corrections and comments
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Authors and funding
16 authors.
Funding
Abstract
Flexible all-perovskite tandem solar cells (TSCs) promise lightweight power for portable and aerospace uses, yet performance remains limited by interfacial losses in narrow-bandgap (NBG) sub-cells, particularly arising from poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS). Here, we uncover a previously unrecognized vertical phase segregation in PEDOT:PSS films, with an insulating PSS-rich surface layer atop a conductive PEDOT-rich base. This architecture induces interfacial electric dipoles that hinder efficient hole extraction. We find that the inclusion of Triton X-100 disrupts this segregation by modulating polymer interactions, thereby suppressing surface dipole formation. NBG perovskite cells incorporating this modified interface exhibit enhanced performance and reproducibility. This strategy enables flexible TSCs with a power conversion efficiency (PCE) of 25.4% and a proof-of-concept flexible tandem solar mini-module reaches 19.7%, with theoretical modeling projecting module efficiencies exceeding 24%. These results provide key insights into PEDOT:PSS interfacial phenomena and elucidate design principles for optimizing interfaces for next-generation flexible perovskite tandems.
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Registered trials
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