ArticleNature communications2022
Free charge photogeneration in a single component high photovoltaic efficiency organic semiconductor.
Article in Nature communications, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.
What it found
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Who cites it
36 citing papers in PubMed.
- Correcting Hybrid Density Functionals to Model Y6 and Other Nonfullerene Acceptors.Journal of chemical theory and computation · 2026Article
- Single-Molecule Memristor Realizing Synaptic Plasticity for Neuromorphic Applications.Angewandte Chemie (International ed. in English) · 2026Article
- Ultrafast Spectroscopy in Chemistry.The journal of physical chemistry letters · 2026Article
- Controlling the Optoelectronic Properties of the Non-Fullerene Acceptor Y6 via p-Doping.Small (Weinheim an der Bergstrasse, Germany) · 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
- 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
- Trap-assisted circularly polarized organic photodetector.Nature communications · 2026Article
- Self-Assembled Monolayer Anode Enables 7% Efficiency in Y6-Based Quasi-Homojunction Solar Cells With 4% Donor Contents.Small science · 2026Article
- Evidence for Photoinduced Polaron Generation in a High Persistence Length Low Bandgap Conjugated Polymer in Solution.The journal of physical chemistry. B · 2026Article
- Solar-driven fast photocatalytic hydrogen evolution using size-minimized organic heterojunctions.Nature communications · 2025Article
- Transiently delocalised hybrid quantum states are gateways for efficient exciton dissociation at organic donor-acceptor interfaces.Nature communications · 2025Article
- Intrinsically charge-generating polymers with long-lived free carriers for efficient photon-to-hydrogen conversion.Science advances · 2025Article
- Solvent Vapor Conditioning of Polymer-Polymer Organic Solar Cells.ACS applied materials & interfaces · 2025Article
- Electron-Hole Separation Dynamics and Optoelectronic Properties of a PCE10:FOIC Blend.Small (Weinheim an der Bergstrasse, Germany) · 2025Article
- Molecular Engineering for Enhancing the Dielectric and Optoelectronic Properties of Antimony Corroles.Small science · 2025Article
- Photoluminescent delocalized excitons in donor polymers facilitate efficient charge generation for high-performance organic photovoltaics.Nature communications · 2025Article
- High-Efficiency Y6 Homojunction Organic Solar Cells Enabled by a Secondary Hole Transport Layer.Small (Weinheim an der Bergstrasse, Germany) · 2025Article
- Exciton Diffusion to Low Energy Sites of the Acceptor Drives Charge Photogeneration in D18:Y6 Solar Cells.The journal of physical chemistry. C, Nanomaterials and interfaces · 2024Article
Corrections and comments
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Authors and funding
17 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Organic photovoltaics (OPVs) promise cheap and flexible solar energy. Whereas light generates free charges in silicon photovoltaics, excitons are normally formed in organic semiconductors due to their low dielectric constants, and require molecular heterojunctions to split into charges. Recent record efficiency OPVs utilise the small molecule, Y6, and its analogues, which - unlike previous organic semiconductors - have low band-gaps and high dielectric constants. We show that, in Y6 films, these factors lead to intrinsic free charge generation without a heterojunction. Intensity-dependent spectroscopy reveals that 60-90% of excitons form free charges at AM1.5 light intensity. Bimolecular recombination, and hole traps constrain single component Y6 photovoltaics to low efficiencies, but recombination is reduced by small quantities of donor. Quantum-chemical calculations reveal strong coupling between exciton and CT states, and an intermolecular polarisation pattern that drives exciton dissociation. Our results challenge how current OPVs operate, and renew the possibility of efficient single-component OPVs.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.