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dc.contributor.authorWeiss, Leah
dc.contributor.authorBayliss, SL
dc.contributor.authorKraffert, F
dc.contributor.authorThorley, KJ
dc.contributor.authorAnthony, JE
dc.contributor.authorBittl, R
dc.contributor.authorFriend, Richard
dc.contributor.authorRao, Akshay
dc.contributor.authorGreenham, Neil
dc.contributor.authorBehrends, J
dc.date.accessioned2016-10-13T11:07:48Z
dc.date.available2016-10-13T11:07:48Z
dc.date.issued2017-02
dc.identifier.issn1745-2473
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/260752
dc.description.abstractFrom biological complexes to devices based on organic semiconductors, spin interactions play a key role in the function of molecular systems. For instance, triplet-pair reactions impact operation of organic light-emitting diodes as well as photovoltaic devices. Conventional models for triplet pairs assume they interact only weakly. Here, using electron spin resonance, we observe long-lived, strongly-interacting triplet pairs in an organic semiconductor, generated via singlet fission. Using coherent spin-manipulation of these two-triplet states, we identify exchange-coupled (spin-2) quintet complexes co-existing with weakly coupled (spin-1) triplets. We measure strongly coupled pairs with a lifetime approaching 3 µs and a spin coherence time approaching 1 µs, at 10 K. Our results pave the way for the utilization of high-spin systems in organic semiconductors.
dc.description.sponsorshipGates-Cambridge Trust, Winton Programme for the Physics of Sustainability, Freie Universität Berlin within the Excellence Initiative of the German Research Foundation, Engineering and Physical Sciences Research Council (Grant ID: EP/G060738/1)
dc.languageEnglish
dc.language.isoen
dc.publisherSpringer Science and Business Media LLC
dc.titleStrongly exchange-coupled triplet pairs in an organic semiconductor
dc.typeArticle
dc.description.versionThis is the author accepted manuscript. The final version is available from Nature Publishing Group at http://dx.doi.org/10.1038/nphys3908.
prism.publicationDate2016
prism.publicationNameNature Physics
dc.identifier.doi10.17863/CAM.5906
dcterms.dateAccepted2016-08-19
rioxxterms.versionofrecord10.1038/nphys3908
rioxxterms.versionAM
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.licenseref.startdate2016-10-17
dc.contributor.orcidWeiss, Leah [0000-0003-0872-708X]
dc.contributor.orcidFriend, Richard [0000-0001-6565-6308]
dc.contributor.orcidRao, Akshay [0000-0003-0320-2962]
dc.contributor.orcidGreenham, Neil [0000-0002-2155-2432]
dc.identifier.eissn1745-2481
rioxxterms.typeJournal Article/Review
pubs.funder-project-idEngineering and Physical Sciences Research Council (EP/M005143/1)
pubs.funder-project-idEngineering and Physical Sciences Research Council (EP/M006360/1)
pubs.funder-project-idEngineering and Physical Sciences Research Council (EP/G060738/1)
cam.issuedOnline2016-10-17
datacite.issupplementedby.doi10.17863/CAM.1634
rioxxterms.freetoread.startdate2017-04-17


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