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dc.contributor.authorEvans, Emrysen
dc.contributor.authorOlivier, Yoannen
dc.contributor.authorPuttisong, Yuttapoomen
dc.contributor.authorMyers, William Ken
dc.contributor.authorHele, Timen
dc.contributor.authorMenke, Stephenen
dc.contributor.authorThomas, Tudoren
dc.contributor.authorCredgington, Danielen
dc.contributor.authorBeljonne, Daviden
dc.contributor.authorFriend, Richarden
dc.contributor.authorGreenham, Neilen
dc.date.accessioned2018-09-29T06:08:48Z
dc.date.available2018-09-29T06:08:48Z
dc.date.issued2018-07-09en
dc.identifier.issn1948-7185
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/282929
dc.description.abstractElectrically injected charge carriers in organic light-emitting devices (OLEDs) undergo recombination events to form singlet and triplet states in a 1:3 ratio, representing a fundamental hurdle for achieving high quantum efficiency. Dopants based on thermally activated delayed fluorescence (TADF) have emerged as promising candidates for addressing the spin statistics issue in OLEDs. In these materials, reverse singlet-triplet intersystem crossing (rISC) becomes efficient, thereby activating luminescence pathways for weakly emissive triplet states. However, despite a growing consensus that torsional vibrations facilitate spin-orbit-coupling (SOC)-driven ISC in these molecules, there is a shortage of experimental evidence. We use transient electron spin resonance and theory to show unambiguously that SOC interactions drive spin conversion and that ISC is a dynamic process gated by conformational fluctuations for benchmark carbazolyl-dicyanobenzene TADF emitters.
dc.format.mediumPrint-Electronicen
dc.languageengen
dc.publisherAmerican Chemical Society (ACS)
dc.rightsAttribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleVibrationally Assisted Intersystem Crossing in Benchmark Thermally Activated Delayed Fluorescence Molecules.en
dc.typeArticle
prism.endingPage4058
prism.issueIdentifier14en
prism.publicationDate2018en
prism.publicationNameThe journal of physical chemistry lettersen
prism.startingPage4053
prism.volume9en
dc.identifier.doi10.17863/CAM.30292
dcterms.dateAccepted2018-07-01en
rioxxterms.versionofrecord10.1021/acs.jpclett.8b01556en
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2018-07-09en
dc.contributor.orcidEvans, Emrys [0000-0002-9092-3938]
dc.contributor.orcidPuttisong, Yuttapoom [0000-0002-9690-6231]
dc.contributor.orcidMyers, William K [0000-0001-5935-9112]
dc.contributor.orcidHele, Timothy [0000-0003-2367-3825]
dc.contributor.orcidMenke, Stephen [0000-0003-4468-0223]
dc.contributor.orcidCredgington, Daniel [0000-0003-4246-2118]
dc.contributor.orcidFriend, Richard [0000-0001-6565-6308]
dc.contributor.orcidGreenham, Neil [0000-0002-2155-2432]
dc.identifier.eissn1948-7185
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idEPSRC (EP/M005143/1)
pubs.funder-project-idEPSRC (1591119)
pubs.funder-project-idEPSRC (EP/M01083X/1)


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