ArticleNature communications2024
The role of interfacial donor-acceptor percolation in efficient and stable all-polymer solar cells.
Article in Nature communications, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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13 citing papers in PubMed.
- Side-Chain Asymmetry in Quinoxaline Copolymer Donors Enables Optimal Morphology and Improved Charge Dynamics for High-Efficiency Organic Solar Cells.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Synthesis and photovoltaic evaluation of fluorinated PTB7-Th derivatives in binary and ternary organic solar cells.RSC advances · 2026Article
- Evaporation Kinetics Engineering Suppressed Bimolecular Recombination in All-Polymer Solar Cells.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Perovskite-organic tandem solar cells with superior reverse-bias stability.Nature materials · 2026Article
- Dual-Step Solvent Vapor Annealing for Improved Morphology Control in Sequentially Deposited Organic Solar Cells.Polymers · 2026Article
- A synergistic strategy of crosslinking and filler toughening enabling stretchable organic photovoltaics for wearable applications.Nature communications · 2026Article
- Suppressing electron-phonon coupling and energy loss in organic solar cells by modulating donor-acceptor penetrated-interface.Nature communications · 2026Article
- Molecular design and synthesis of bithiophene copolymers for advanced nonlinear optical response.RSC advances · 2025Article
- Real-Time Probing of Morphological Evolution and Recrystallization During Solvent Annealing in Blade-Coated All-Polymer Organic Solar Cells Using In Situ X-Ray Scattering.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
- Emerging Role of 2D Materials in Photovoltaics: Efficiency Enhancement and Future Perspectives.Nano-micro letters · 2025Review
- Polymer-like tetramer acceptor enables stable and 19.75% efficiency binary organic solar cells.Nature communications · 2025Article
- Achieving High Efficiency and Stability in Organic Photovoltaics with a Nanometer-Scale Twin p-i-n Structured Active Layer.ACS applied materials & interfaces · 2024Article
- Optimizing Transport Carrier Free All-Polymer Solar Cells for Indoor Applications: TCAD Simulation under White LED Illumination.Polymers · 2024Article
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12 authors.
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Abstract
Polymerization of Y6-type acceptor molecules leads to bulk-heterojunction organic solar cells with both high power-conversion efficiency and device stability, but the underlying mechanism remains unclear. Here we show that the exciton recombination dynamics of polymerized Y6-type acceptors (Y6-PAs) strongly depends on the degree of aggregation. While the fast exciton recombination rate in aggregated Y6-PA competes with electron-hole separation at the donor-acceptor (D-A) interface, the much-suppressed exciton recombination rate in dispersed Y6-PA is sufficient to allow efficient free charge generation. Indeed, our experimental results and theoretical simulations reveal that Y6-PAs have larger miscibility with the donor polymer than Y6-type small molecular acceptors, leading to D-A percolation that effectively prevents the formation of Y6-PA aggregates at the interface. Besides enabling high charge generation efficiency, the interfacial D-A percolation also improves the thermodynamic stability of the blend morphology, as evident by the reduced device "burn-in" loss upon solar illumination.
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