ArticleNature communications2025
Fused-ring isomerism modulates molecular packing and device performance in non-halogenated organic solar cells.
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.
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Who cites it
6 citing papers in PubMed.
- Precise End-Group Conjugated-Site Isomerization of Wing-Typed Dimeric Acceptors Enables 20.32% Efficiency Organic Solar Cells.Angewandte Chemie (International ed. in English) · 2026Article
- Chalcogen heteroatom engineering of solid additives with optimized excited-state properties enables the development of high-performance organic solar cells.Chemical science · 2026Article
- Copolymerized Plasticizer Enables Halogen-Free Processing Toward 20.78% and 17.83% Efficient Organic Solar Cells and Modules.Advanced materials (Deerfield Beach, Fla.) · 2026Article
- Synergistic Steric Hindrance and Chlorination Enable Efficient Binary Organic Solar Cells with Low Energy Loss.Nature communications · 2026Article
- Aromatic Connectivity Governs Aggregation and Morphology in Ternary Organic Solar Cells.Small (Weinheim an der Bergstrasse, Germany) · 2026Article
- Attaining 19.12% solar cell efficiency for non-fused ring electron acceptors via multi-dimensional charge transport.Nature communications · 2026Article
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Authors and funding
17 authors.
Funding
Abstract
Subtle changes in molecular backbone geometry impact intermolecular interactions and performance of organic solar cells. Here, three isomeric small-molecule acceptors (NaO1, NaO2, and NaO3) are investigated to reveal how different fused-ring configurations control molecular packing, electronic coupling, and film formation. Structural and spectroscopic analyses show that the linearly fused NaO1 forms a compact three-dimensional packing network with large and balanced electronic couplings (>24 meV) across multiple directions, while the more curved analogues exhibit excessive crystallization and phase segregation. In-situ optical measurements demonstrate that NaO1 promotes fast and continuous structural evolution during film formation, resulting in smooth morphology and homogeneous phase distribution. These structural and dynamic advantages facilitate efficient charge generation and transport, accompanied by reduced non-radiative energy loss, ultimately achieving an efficiency of 20.07% for non-halogenated ternary devices. Our findings highlight how fused-ring isomerism decisively governs structure-packing-performance relationships in organic solar cells.
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