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Cited by 471

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Hot Carrier Transport and Photocurrent Response in Graphene

Open access
Song, Justin C. W., Rudner, Mark S., Marcus, Charles M., Levitov, Leonid S.·2011·Nano Letters

Abstract

Strong electron-electron interactions in graphene are expected to result in multiple-excitation generation by the absorption of a single photon. We show that the impact of carrier multiplication on photocurrent response is enhanced by very inefficient electron cooling, resulting in an abundance of hot carriers. The hot-carrier-mediated energy transport dominates the photoresponse and manifests itself in quantum efficiencies that can exceed unity, as well as in a characteristic dependence of the photocurrent on gate voltages. The pattern of multiple photocurrent sign changes as a function of gate voltage provides a fingerprint of hot-carrier-dominated transport and carrier multiplication.

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Metadata

Authors
Song, J. C. W., Rudner, M. S., Marcus, C. M., & Levitov, L. S.
Venue
Nano Letters
Published
2011-09-30
Volume
11
Issue
11
Pages
4688-4692
ISSN
  • 1530-6984 (ISSN-L)
  • 1530-6992
OpenAlex
W2026519355
Cited by
471
References
2
FWCI
16.58
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Hot Carrier Transport and Photocurrent Response in Graphene. https://app.cochat.ai/papers/10.1021/nl202318u
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Song, J. C. W., Rudner, M. S., Marcus, C. M., & Levitov, L. S. (2011). Hot Carrier Transport and Photocurrent Response in Graphene. Nano Letters. https://doi.org/10.1021/nl202318u

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.