Electrical-driven plasmon source of silicon based on quantum tunneling

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dc.contributor.authorGöktaş, Hasan
dc.contributor.authorGökhan, Fikri Serdar
dc.contributor.authorSorger, Volker J.
dc.date.accessioned2021-02-19T21:16:17Z
dc.date.available2021-02-19T21:16:17Z
dc.date.issued2018
dc.departmentALKÜ
dc.descriptionGoktas, Hasan/0000-0002-2195-9531
dc.description.abstractA silicon-based light source presents an unreached goal in the field of photonics due to silicon's indirect electronic band structure preventing direct carrier recombination and subsequent photon emission. Here, we utilize inelastically tunneling electrons to demonstrate an electrically driven light emitting silicon-based tunnel junction operating at room temperature. We show that such a junction is a source for plasmons driven by the electrical tunnel current. We find that the emission spectrum is not given by the quantum condition where the emission frequency would be proportional to the applied voltage, but the spectrum is determined by the spectral overlap between the energy-dependent tunnel current and the modal dispersion of the plasmon. By coupling an internal electric field enhancement with an external k-vector matching grating, we were able to demonstrate a 10-fold increase in the internal efficiency and a 40-fold increase in overall quantum efficiency. Such an electron tunneling-based mechanism could lead to a new class of solid-state light sources with unique features such as down-scalability and temporal responses that are significantly shorter than that of light-emitting diodes.
dc.description.sponsorshipAir Force Office of Scientific ResearchUnited States Department of DefenseAir Force Office of Scientific Research (AFOSR) [FA9550-17-1-0377]
dc.description.sponsorshipV.S. is supported by Air Force Office of Scientific Research under the Award FA9550-17-1-0377. We thank Josh Conway for helpful discussions and Ergun Simsek for numerical analysis support.
dc.identifier.doi10.1021/acsphotonics.8b01106
dc.identifier.endpage4936en_US
dc.identifier.issn2330-4022
dc.identifier.issue12en_US
dc.identifier.scopusqualityQ1
dc.identifier.startpage4928en_US
dc.identifier.urihttps://doi.org/10.1021/acsphotonics.8b01106
dc.identifier.urihttps://hdl.handle.net/20.500.12868/364
dc.identifier.volume5en_US
dc.identifier.wosWOS:000454463000028
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthor0-belirlenecek
dc.language.isoen
dc.publisherAmer Chemical Soc
dc.relation.ispartofAcs Photonics
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectLight source
dc.subjectplasmon
dc.subjectoptoelectronics
dc.subjectsilicon
dc.subjectquantum tunneling
dc.subjectelectroluminescence
dc.subjectgrating
dc.titleElectrical-driven plasmon source of silicon based on quantum tunneling
dc.typeArticle

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