dc.contributor.author | Song, Justin Chien Wen | |
dc.contributor.author | Rudner, Mark S. | |
dc.contributor.author | Marcus, Charles M. | |
dc.contributor.author | Levitov, Leonid | |
dc.date.accessioned | 2012-10-15T14:43:44Z | |
dc.date.available | 2012-10-15T14:43:44Z | |
dc.date.issued | 2011-09 | |
dc.date.submitted | 2011-09 | |
dc.identifier.issn | 1530-6984 | |
dc.identifier.issn | 1530-6992 | |
dc.identifier.uri | http://hdl.handle.net/1721.1/73958 | |
dc.description.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. | en_US |
dc.description.sponsorship | United States. Office of Naval Research (Naval Research Grant N00014-09-1-0724) | en_US |
dc.description.sponsorship | Nature Society (Singapore) | en_US |
dc.language.iso | en_US | |
dc.publisher | American Chemical Society | en_US |
dc.relation.isversionof | http://dx.doi.org/10.1021/nl202318u | en_US |
dc.rights | Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. | en_US |
dc.source | Prof Levitov via Mat Willmott | en_US |
dc.title | Hot Carrier Transport and Photocurrent Response in Graphene | en_US |
dc.type | Article | en_US |
dc.identifier.citation | Song, Justin C. W. et al. “Hot Carrier Transport and Photocurrent Response in Graphene.” Nano Letters 11.11 (2011): 4688–4692. Web. | en_US |
dc.contributor.department | Massachusetts Institute of Technology. Department of Physics | en_US |
dc.contributor.approver | Levitov, Leonid | |
dc.contributor.mitauthor | Levitov, Leonid | |
dc.contributor.mitauthor | Song, Justin Chien Wen | |
dc.relation.journal | Nano Letters | en_US |
dc.eprint.version | Author's final manuscript | en_US |
dc.type.uri | http://purl.org/eprint/type/JournalArticle | en_US |
eprint.status | http://purl.org/eprint/status/PeerReviewed | en_US |
dspace.orderedauthors | Song, Justin C. W.; Rudner, Mark S.; Marcus, Charles M.; Levitov, Leonid S. | en |
dc.identifier.orcid | https://orcid.org/0000-0002-4268-731X | |
mit.license | PUBLISHER_POLICY | en_US |
mit.metadata.status | Complete | |