ArticleNature communications2020
Delocalization of exciton and electron wavefunction in non-fullerene acceptor molecules enables efficient organic solar cells.
Article in Nature communications, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 88 papers.
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Who cites it
88 citing papers in PubMed.
- Improved GAFF Force Field for Fused Ring Non-Fullerene Acceptors With 1,1-Dicyanomethylene-3-Indanone Based End Groups.Journal of computational chemistry · 2026Article
- Triplet exciton recycling in organic solar cells enabled by an extrinsic triplet-triplet annihilation dopant.EES solar · 2026Article
- Solution-processed organic infrared photodetectors operating beyond 1.4 μm for sensitive environmental monitoring.Science advances · 2026Article
- Article
- Correcting Hybrid Density Functionals to Model Y6 and Other Nonfullerene Acceptors.Journal of chemical theory and computation · 2026Article
- Decoding non-fullerene acceptors for organic solar cells: a theoretical structure-property-performance perspective.RSC advances · 2026Review
- Achieving Near 21% Efficiency Organic Solar Cells through Controlled Packing of Fused-Ring Electron Acceptors.Nature communications · 2026Article
- Side Chain Elimination Enables Low-Cost Fused-Ring Acceptors and Reveals a Compact Tetrameric Structure for High-Photocurrent Organic Solar Cells.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Multiscale Numerical Modelling and Structural Design of Bulk Heterojunction Nanocomposites for Organic Photovoltaics: From Molecular Interfaces to Device Optimization.Materials (Basel, Switzerland) · 2026Review
- Synergistic Steric Hindrance and Chlorination Enable Efficient Binary Organic Solar Cells with Low Energy Loss.Nature communications · 2026Article
- Record Carrier Diffusion Lengths in Large, Dense Nonfullerene Electron Acceptor Crystals Grown from Polar Aromatic Solvents.Journal of the American Chemical Society · 2026Article
- Molecular factors controlling charge pair generation in organic photovoltaic materials.Nature materials · 2026Article
- Non-Fullerene Acceptor Photo-Charge Enabled Stretchable Photovoltaic Robustness Under 90% Tensile Strain and 30% Strain Cycles.Advanced materials (Deerfield Beach, Fla.) · 2026Article
- Fast Fourier Transform Enables Automated Parametrization of Complex Dihedral Potentials in All-Atom and Coarse-Grained Force Fields.Journal of chemical information and modeling · 2026Article
- Aggregation-induced emission luminogen in ternary organic bulk-heterojunction for efficient perovskite-organic tandem solar cells.Nature communications · 2026Article
- Machine Learning in Non-fullerene Organic Solar Cells: Accelerating Discovery, Design, and Understanding.ACS omega · 2026Review
- Symmetry-breaking charge separation in perylene diimide trimers: effects of aggregation and solvent polarity.Chemical science · 2026Article
- Ultrafast charge-generation dynamics through interfacial energetic modulation for high-performance single-component organic photovoltaics with 14.8% efficiency.Nature communications · 2026Article
- Decoupling the Transparency-Efficiency Trade-Off in Semi-Transparent Organic Solar Cells via Optimized Dual-Channel Photoelectric Conversion.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- High-Performance Ternary Organic Solar Cells via Isomeric Engineering of Nonfullerene Guest Acceptors.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
28 more citing papers are in PubMed but not listed here.
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Authors and funding
24 authors.
Funding
Abstract
A major challenge for organic solar cell (OSC) research is how to minimize the tradeoff between voltage loss and charge generation. In early 2019, we reported a non-fullerene acceptor (named Y6) that can simultaneously achieve high external quantum efficiency and low voltage loss for OSC. Here, we use a combination of experimental and theoretical modeling to reveal the structure-property-performance relationships of this state-of-the-art OSC system. We find that the distinctive π-π molecular packing of Y6 not only exists in molecular single crystals but also in thin films. Importantly, such molecular packing leads to (i) the formation of delocalized and emissive excitons that enable small non-radiative voltage loss, and (ii) delocalization of electron wavefunctions at donor/acceptor interfaces that significantly reduces the Coulomb attraction between interfacial electron-hole pairs. These properties are critical in enabling highly efficient charge generation in OSC systems with negligible donor-acceptor energy offset.
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