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Microcavity-like exciton-polaritons can be the primary photoexcitation in bare organic semiconductors.

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cam.issuedOnline2021-11-11
cam.orpheus.counter4
cam.orpheus.successTue Feb 01 19:02:03 GMT 2022 - Embargo updated*
dc.contributor.authorPandya, Raj
dc.contributor.authorChen, Richard YS
dc.contributor.authorGu, Qifei
dc.contributor.authorSung, Jooyoung
dc.contributor.authorSchnedermann, Christoph
dc.contributor.authorOjambati, Oluwafemi S
dc.contributor.authorChikkaraddy, Rohit
dc.contributor.authorGorman, Jeffrey
dc.contributor.authorJacucci, Gianni
dc.contributor.authorOnelli, Olimpia D
dc.contributor.authorWillhammar, Tom
dc.contributor.authorJohnstone, Duncan N
dc.contributor.authorCollins, Sean
dc.contributor.authorMidgley, Paul
dc.contributor.authorAuras, Florian
dc.contributor.authorBaikie, Tomi
dc.contributor.authorJayaprakash, Rahul
dc.contributor.authorMathevet, Fabrice
dc.contributor.authorSoucek, Richard
dc.contributor.authorDu, Matthew
dc.contributor.authorAlvertis, Antonios M
dc.contributor.authorAshoka, Arjun
dc.contributor.authorVignolini, Silvia
dc.contributor.authorLidzey, David G
dc.contributor.authorBaumberg, Jeremy
dc.contributor.authorFriend, Richard
dc.contributor.authorBarisien, Thierry
dc.contributor.authorLegrand, Laurent
dc.contributor.authorChin, Alex W
dc.contributor.authorYuen-Zhou, Joel
dc.contributor.authorSaikin, Semion K
dc.contributor.authorKukura, Philipp
dc.contributor.authorMusser, Andrew J
dc.contributor.authorRao, Akshay
dc.contributor.orcidSchnedermann, Christoph [0000-0002-2841-8586]
dc.contributor.orcidOjambati, Oluwafemi S [0000-0002-8028-4386]
dc.contributor.orcidChikkaraddy, Rohit [0000-0002-3840-4188]
dc.contributor.orcidGorman, Jeffrey [0000-0002-6888-7838]
dc.contributor.orcidJacucci, Gianni [0000-0002-9156-0876]
dc.contributor.orcidWillhammar, Tom [0000-0001-6120-1218]
dc.contributor.orcidCollins, Sean [0000-0002-5151-6360]
dc.contributor.orcidMidgley, Paul [0000-0002-6817-458X]
dc.contributor.orcidAuras, Florian [0000-0003-1709-4384]
dc.contributor.orcidJayaprakash, Rahul [0000-0002-2021-1601]
dc.contributor.orcidAlvertis, Antonios M [0000-0001-5916-3419]
dc.contributor.orcidVignolini, Silvia [0000-0003-0664-1418]
dc.contributor.orcidLidzey, David G [0000-0002-8558-1160]
dc.contributor.orcidBaumberg, Jeremy [0000-0002-9606-9488]
dc.contributor.orcidFriend, Richard [0000-0001-6565-6308]
dc.contributor.orcidYuen-Zhou, Joel [0000-0002-8701-8793]
dc.contributor.orcidKukura, Philipp [0000-0003-0136-7704]
dc.contributor.orcidMusser, Andrew J [0000-0002-4600-6606]
dc.contributor.orcidRao, Akshay [0000-0003-4261-0766]
dc.date.accessioned2021-10-15T23:31:18Z
dc.date.available2021-10-15T23:31:18Z
dc.date.issued2021-11-11
dc.description.abstractStrong-coupling between excitons and confined photonic modes can lead to the formation of new quasi-particles termed exciton-polaritons which can display a range of interesting properties such as super-fluidity, ultrafast transport and Bose-Einstein condensation. Strong-coupling typically occurs when an excitonic material is confided in a dielectric or plasmonic microcavity. Here, we show polaritons can form at room temperature in a range of chemically diverse, organic semiconductor thin films, despite the absence of an external cavity. We find evidence of strong light-matter coupling via angle-dependent peak splittings in the reflectivity spectra of the materials and emission from collective polariton states. We additionally show exciton-polaritons are the primary photoexcitation in these organic materials by directly imaging their ultrafast (5 × 106 m s-1), ultralong (~270 nm) transport. These results open-up new fundamental physics and could enable a new generation of organic optoelectronic and light harvesting devices based on cavity-free exciton-polaritons.
dc.description.sponsorshipEPSRC (EP/R025517/1), EPSRC (EP/M025330/1), ERC Horizon 2020 (grant agreements No 670405 and No 758826), ERC (ERC-2014-STG H2020 639088), Netherlands Organisation for Scientific Research, Swedish Research Council (VR, 2014-06948), Knut and Alice Wallenberg Foundation 3DEM-NATUR (no. 2012.0112), Royal Commission for the Exhibition of 1851, CNRS (France), US Department of Energy, Office of Science, Basic Energy Sciences, CPIMS Program, Early Career Research Program (DE-SC0019188).
dc.identifier.doi10.17863/CAM.76894
dc.identifier.eissn2041-1723
dc.identifier.issn2041-1723
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/329446
dc.languageeng
dc.publisherSpringer Science and Business Media LLC
dc.rightsAll rights reserved
dc.titleMicrocavity-like exciton-polaritons can be the primary photoexcitation in bare organic semiconductors.
dc.typeArticle
dcterms.dateAccepted2021-09-29
prism.issueIdentifier1
prism.publicationDate2021
prism.publicationNameNat Commun
prism.startingPage6519
prism.volume12
pubs.funder-project-idEngineering and Physical Sciences Research Council (EP/M006360/1)
pubs.funder-project-idEuropean Research Council (758826)
pubs.funder-project-idEngineering and Physical Sciences Research Council (EP/L027151/1)
pubs.funder-project-idEuropean Commission Horizon 2020 (H2020) ERC (883703)
pubs.funder-project-idRoyal Commission for the Exhibition of 1851 (RF499/2018)
pubs.funder-project-idEuropean Research Council (639088)
pubs.funder-project-idEuropean Research Council (670405)
rioxxterms.licenseref.startdate2021-11-11
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.typeJournal Article/Review
rioxxterms.versionAM
rioxxterms.versionofrecord10.1038/s41467-021-26617-w

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