ArticleThe journal of physical chemistry letters2021
Photocurrent-Detected 2D Electronic Spectroscopy Reveals Ultrafast Hole Transfer in Operating PM6/Y6 Organic Solar Cells.
Article in The journal of physical chemistry letters, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 55 citations in OpenAlex.
- Article
- Ultrafast photocurrent detection contradicts optical detection conclusions: Exciton diffusion contributes little to carbon nanotube device efficiency.Science advances · 2026Article
- Alkylthienyl Side Groups in Conjugated Polymers Enable Localization of π Electron Density and Facilitate Efficient Hole Transfer.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Spatiotemporal Exciton Tracking with a SPAD Camera.ACS photonics · 2025Article
- Two-Dimensional Spectroscopy of Open Quantum Systems: Nonequilibrium Green's Function Formulation.The journal of physical chemistry letters · 2025Article
- Photoelectrochemical Two-Dimensional Electronic Spectroscopy (PEC2DES) of Photosystem I: Charge Separation Dynamics Hidden in a Multichromophoric Landscape.ACS applied materials & interfaces · 2024Article
- All-Atom Photoinduced Charge Transfer Dynamics in Condensed Phase via Multistate Nonlinear-Response Instantaneous Marcus Theory.Journal of chemical theory and computation · 2024Article
- Pulse-Induced Dynamics of a Charge-Transfer Complex from First Principles.The journal of physical chemistry. A · 2023Article
- Unifying Nonlinear Response and Incoherent Mixing in Action-2D Electronic Spectroscopy.The journal of physical chemistry letters · 2023Article
- Time-Frequency Signatures of Electronic Coherence of Colloidal CdSe Quantum Dot Dimer Assemblies Probed at Room Temperature by Two-Dimensional Electronic Spectroscopy.Nanomaterials (Basel, Switzerland) · 2023Article
- A quantum information processing machine for computing by observables.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
- 2D Electronic Spectroscopic Techniques for Quantum Technology Applications.The journal of physical chemistry. C, Nanomaterials and interfaces · 2021Review
Corrections and comments
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Authors and funding
7 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The performance of nonfullerene-acceptor-(NFA)-based organic solar cells is rapidly approaching the efficiency of inorganic cells. The chemical versatility of NFAs extends the light-harvesting range to the infrared, while preserving a considerably high open-circuit-voltage, crucial to achieve power-conversion efficiencies >17%. Such low voltage losses in the charge separation process have been attributed to a low-driving-force and efficient exciton dissociation. Here, we address the nature of the subpicosecond dynamics of electron/hole transfer in PM6/Y6 solar cells. While previous reports focused on active layers only, we developed a photocurrent-detected two-dimensional spectroscopy to follow the charge transfer in fully operating devices. Our measurements reveal an efficient hole-transfer from the Y6-acceptor to the PM6-donor on the subpicosecond time scale. On the contrary, at the same time scale, no electron-transfer is seen from the donor to the acceptor. These findings, putting ultrafast spectroscopy in action on operating optoelectronic devices, provide insight for further enhancing NFA solar cell performance.
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Registered trials
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