ArticleProceedings of the National Academy of Sciences of the United States of America2017
Light-responsive organic flashing electron ratchet.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- A nanoporous capacitive electrochemical ratchet for continuous ion separations.Nature materials · 2026Article
- Broadband and photovoltaic THz/IR response in the GaAs-based ratchet photodetector.Science advances · 2022Article
- Scalable Electronic Ratchet with Over 10% Rectification Efficiency.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2020Article
- Energy conversion via metal nanolayers.Proceedings of the National Academy of Sciences of the United States of America · 2019Article
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Ratchets are nonequilibrium devices that produce directional motion of particles from nondirectional forces without using a bias, and are responsible for many types of biological transport, which occur with high yield despite strongly damped and noisy environments. Ratchets operate by breaking time-reversal and spatial symmetries in the direction of transport through application of a time-dependent potential with repeating, asymmetric features. This work demonstrates the ratcheting of electrons within a highly scattering organic bulk-heterojunction layer, and within a device architecture that enables the application of arbitrarily shaped oscillating electric potentials. Light is used to modulate the carrier density, which modifies the current with a nonmonotonic response predicted by theory. This system is driven with a single unbiased sine wave source, enabling the future use of natural oscillation sources such as electromagnetic radiation.
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Registered trials
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