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dc.contributor.authorGraf, Arko
dc.contributor.authorHeld, Martin
dc.contributor.authorZakharko, Yuriy
dc.contributor.authorTropf, Laura Christine
dc.contributor.authorGather, Malte Christian
dc.contributor.authorZaumseil, Jana
dc.date.accessioned2018-01-18T00:31:36Z
dc.date.available2018-01-18T00:31:36Z
dc.date.issued2017-09
dc.identifier.citationGraf , A , Held , M , Zakharko , Y , Tropf , L C , Gather , M C & Zaumseil , J 2017 , ' Electrical pumping and tuning of exciton-polaritons in carbon nanotube microcavities ' , Nature Materials , vol. 16 , pp. 911-917 . https://doi.org/10.1038/nmat4940en
dc.identifier.issn1476-1122
dc.identifier.otherPURE: 250310130
dc.identifier.otherPURE UUID: be2c179e-15f6-4642-b518-b18223187047
dc.identifier.otherScopus: 85028537146
dc.identifier.otherORCID: /0000-0002-4857-5562/work/47136514
dc.identifier.otherWOS: 000408591300013
dc.identifier.urihttps://hdl.handle.net/10023/12504
dc.descriptionThis research was financially supported by the European Research Council under the European Union's Seventh Framework Programme (FP/2007-2013)/ERC Grant Agreement No. 306298 (EN-LUMINATE) and under the European Union’s Horizon 2020 Framework Programme (FP/2014-2020)/ERC Grant Agreement No. 640012 (ABLASE) and by the Scottish Funding Council (through SUPA). L.T. thanks the EPSRC for support through the CM-DTC (EP/L015110/1). J.Z. thanks the Alfried Krupp von Bohlen und Halbach-Stiftung via the “Alfried Krupp Förderpreis für junge Hochschullehrer” for general support.en
dc.description.abstractExciton-polaritons are hybrid light–matter particles that form upon strong coupling of an excitonic transition to a cavity mode. As bosons, polaritons can form condensates with coherent laser-like emission. For organic materials, optically pumped condensation was achieved at room temperature but electrically pumped condensation remains elusive due to insufficient polariton densities. Here we combine the outstanding optical and electronic properties of purified, solution-processed semiconducting (6,5) single-walled carbon nanotubes (SWCNTs) in a microcavity-integrated light-emitting field-effect transistor to realize efficient electrical pumping of exciton-polaritons at room temperature with high current densities (>10 kA cm−2) and tunability in the near-infrared (1,060 nm to 1,530 nm). We demonstrate thermalization of SWCNT polaritons, exciton-polariton pumping rates ~104 times higher than in current organic polariton devices, direct control over the coupling strength (Rabi splitting) via the applied gate voltage, and a tenfold enhancement of polaritonic over excitonic emission. This powerful material–device combination paves the way to carbon-based polariton emitters and possibly lasers.
dc.format.extent8
dc.language.isoeng
dc.relation.ispartofNature Materialsen
dc.rights© 2017, Macmillan Publishers Ltd, part of Springer Nature. This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at www.nature.com / https://doi.org/10.1038/nmat4940en
dc.subjectQC Physicsen
dc.subjectTK Electrical engineering. Electronics Nuclear engineeringen
dc.subjectDASen
dc.subjectBDCen
dc.subjectR2Cen
dc.subject.lccQCen
dc.subject.lccTKen
dc.titleElectrical pumping and tuning of exciton-polaritons in carbon nanotube microcavitiesen
dc.typeJournal articleen
dc.contributor.sponsorEuropean Research Councilen
dc.description.versionPostprinten
dc.description.versionPostprinten
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.contributor.institutionUniversity of St Andrews. Biomedical Sciences Research Complexen
dc.identifier.doihttps://doi.org/10.1038/nmat4940
dc.description.statusPeer revieweden
dc.date.embargoedUntil2018-01-17
dc.identifier.grantnumber640012en


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