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dc.contributor.authorDi Nuzzo, Danieleen
dc.contributor.authorKulkarni, Chidambaren
dc.contributor.authorZhao, Baodanen
dc.contributor.authorSmolinsky, Eilamen
dc.contributor.authorTassinari, Francescoen
dc.contributor.authorMeskers, Stefan CJen
dc.contributor.authorNaaman, Ronen
dc.contributor.authorMeijer, EWen
dc.contributor.authorFriend, Richarden
dc.date.accessioned2018-02-13T15:46:15Z
dc.date.available2018-02-13T15:46:15Z
dc.date.issued2017-12en
dc.identifier.issn1936-0851
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/273197
dc.description.abstractWe demonstrate a facile route to obtain high and broad-band circular polarization of electro-luminescence in single layer polymer OLEDs. As light emitting material we use a donor-acceptor polyfluorene with enantiomerically pure chiral side-chains. We show that upon thermal annealing the polymer self assembles into a multi-domain cholesteric film. By varying the thickness of the polymer emitting layer, we achieve high levels of circular polarization of electro-luminescence (up to 40% excess of right-handed polarization), which are the highest reported for polymer OLEDs not using chiral dopants or alignment layers. Mueller matrix ellipsometry shows strong optical anisotropies in the film, indicating that the circular polarization of luminescence arises mainly after the photon has been generated, through selective scattering and birefringence correlated in direction to the initial linear polarization of the photon. Our work demonstrates that chirally-substituted conjugated polymers can combine photonic and semiconducting properties in advanced optoelectronic devices.
dc.format.mediumPrint-Electronicen
dc.languageengen
dc.publisherAmerican Chemical Society
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.titleHigh Circular Polarization of Electroluminescence Achieved via Self-Assembly of a Light-Emitting Chiral Conjugated Polymer into Multidomain Cholesteric Films.en
dc.typeArticle
prism.endingPage12722
prism.issueIdentifier12en
prism.publicationDate2017en
prism.publicationNameACS nanoen
prism.startingPage12713
prism.volume11en
dc.identifier.doi10.17863/CAM.20204
dcterms.dateAccepted2017-11-28en
rioxxterms.versionofrecord10.1021/acsnano.7b07390en
rioxxterms.versionVoR*
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2017-12en
dc.contributor.orcidDi Nuzzo, Daniele [0000-0002-4462-9068]
dc.contributor.orcidKulkarni, Chidambar [0000-0001-8342-9256]
dc.contributor.orcidTassinari, Francesco [0000-0003-4652-9789]
dc.contributor.orcidMeskers, Stefan CJ [0000-0001-9236-591X]
dc.contributor.orcidNaaman, Ron [0000-0003-1910-366X]
dc.contributor.orcidMeijer, EW [0000-0003-4126-7492]
dc.contributor.orcidFriend, Richard [0000-0001-6565-6308]
dc.identifier.eissn1936-086X
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idEPSRC (EP/M005143/1)
cam.orpheus.successThu Jan 30 13:04:42 GMT 2020 - The item has an open VoR version.*
rioxxterms.freetoread.startdate2100-01-01


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Attribution 4.0 International
Except where otherwise noted, this item's licence is described as Attribution 4.0 International