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dc.contributor.authorSakhdari, Maryam
dc.contributor.authorHajizadegan, Mehdi
dc.contributor.authorFarhat, Mohamed
dc.contributor.authorChen, Pai-Yen
dc.date.accessioned2016-05-23T07:54:29Z
dc.date.available2016-05-23T07:54:29Z
dc.date.issued2016-05-22
dc.identifier.citationEfficient, Broadband and Wide-Angle Hot-Electron Transduction using Metal-Semiconductor Hyperbolic Metamaterials 2016 Nano Energy
dc.identifier.issn22112855
dc.identifier.doi10.1016/j.nanoen.2016.05.037
dc.identifier.urihttp://hdl.handle.net/10754/610556
dc.description.abstractHot-electron devices are emerging as promising candidates for the transduction of optical radiation into electrical current, as they enable photodetection and solar/infrared energy harvesting at sub-bandgap wavelengths. Nevertheless, poor photoconversion quantum yields and low bandwidth pose fundamental challenge to fascinating applications of hot-electron optoelectronics. Based on a novel hyperbolic metamaterial (HMM) structure, we theoretically propose a vertically-integrated hot-electron device that can efficiently couple plasmonic excitations into electron flows, with an external quantum efficiency approaching the physical limit. Further, this metamaterial-based device can have a broadband and omnidirectional response at infrared and visible wavelengths. We believe that these findings may shed some light on designing practical devices for energy-efficient photodetection and energy harvesting beyond the bandgap spectral limit.
dc.language.isoen
dc.publisherElsevier BV
dc.relation.urlhttp://linkinghub.elsevier.com/retrieve/pii/S2211285516301598
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Nano Energy. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Nano Energy, 20 May 2016. DOI: 10.1016/j.nanoen.2016.05.037
dc.subjectHot electrons
dc.subjectNternal photoemission
dc.subjectSub-bandgap photovoltaics
dc.subjectPhotodetection
dc.subjectPlasmonics
dc.subjectMetamaterials
dc.titleEfficient, Broadband and Wide-Angle Hot-Electron Transduction using Metal-Semiconductor Hyperbolic Metamaterials
dc.typeArticle
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.identifier.journalNano Energy
dc.eprint.versionPost-print
dc.contributor.institutionDepartment of Electrical and Computer Engineering, Wayne State University, Detroit, MI 48202, U.S.A
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)
kaust.personFarhat, Mohamed
refterms.dateFOA2018-05-20T00:00:00Z
dc.date.published-online2016-05-22
dc.date.published-print2016-08


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