Efficient, Broadband and Wide-Angle Hot-Electron Transduction using Metal-Semiconductor Hyperbolic Metamaterials

Handle URI:
http://hdl.handle.net/10754/610556
Title:
Efficient, Broadband and Wide-Angle Hot-Electron Transduction using Metal-Semiconductor Hyperbolic Metamaterials
Authors:
Sakhdari, Maryam; Hajizadegan, Mehdi; Farhat, Mohamed; Chen, Pai-Yen
Abstract:
Hot-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.
KAUST Department:
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Citation:
Efficient, Broadband and Wide-Angle Hot-Electron Transduction using Metal-Semiconductor Hyperbolic Metamaterials 2016 Nano Energy
Publisher:
Elsevier BV
Journal:
Nano Energy
Issue Date:
20-May-2016
DOI:
10.1016/j.nanoen.2016.05.037
Type:
Article
ISSN:
22112855
Additional Links:
http://linkinghub.elsevier.com/retrieve/pii/S2211285516301598
Appears in Collections:
Articles; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorSakhdari, Maryamen
dc.contributor.authorHajizadegan, Mehdien
dc.contributor.authorFarhat, Mohameden
dc.contributor.authorChen, Pai-Yenen
dc.date.accessioned2016-05-23T07:54:29Z-
dc.date.available2016-05-23T07:54:29Z-
dc.date.issued2016-05-20-
dc.identifier.citationEfficient, Broadband and Wide-Angle Hot-Electron Transduction using Metal-Semiconductor Hyperbolic Metamaterials 2016 Nano Energyen
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.en
dc.language.isoenen
dc.publisherElsevier BVen
dc.relation.urlhttp://linkinghub.elsevier.com/retrieve/pii/S2211285516301598en
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.2016.05.037en
dc.subjectHot electronsen
dc.subjectNternal photoemissionen
dc.subjectSub-bandgap photovoltaicsen
dc.subjectPhotodetectionen
dc.subjectPlasmonicsen
dc.subjectMetamaterialsen
dc.titleEfficient, Broadband and Wide-Angle Hot-Electron Transduction using Metal-Semiconductor Hyperbolic Metamaterialsen
dc.typeArticleen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.identifier.journalNano Energyen
dc.eprint.versionPost-printen
dc.contributor.institutionDepartment of Electrical and Computer Engineering, Wayne State University, Detroit, MI 48202, U.S.Aen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorFarhat, Mohameden
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