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dc.contributor.authorTabachnyk, Maximen
dc.contributor.authorEhrler, Brunoen
dc.contributor.authorGélinas, Simonen
dc.contributor.authorBöhm, Marcus Len
dc.contributor.authorWalker, Brian Jen
dc.contributor.authorMusselman, Kevin Pen
dc.contributor.authorGreenham, Neilen
dc.contributor.authorFriend, Richarden
dc.contributor.authorRao, Akshayen
dc.date.accessioned2014-11-12T10:28:28Z
dc.date.available2014-11-12T10:28:28Z
dc.date.issued2014-10-05en
dc.identifier.citation(2014) Nature Materials 13(11): 1033-1038en
dc.identifier.issn1476-1122
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/246345
dc.description.abstractThe efficient transfer of energy between organic and inorganic semiconductors is a widely sought after property, but has to date been limited to the transfer of spin singlet excitons. Here we report efficient resonant-energy transfer of molecular spin triplet excitons from organic semiconductors to inorganic semiconductors. We use ultrafast optical absorption spectroscopy to track the dynamics of triplets, generated in pentacene via singlet exciton fission, at the interface with lead selenide (PbSe) nanocrystals. We show that triplets transfer to PbSe rapidly (<1ps) and efficiently, with 1.9 triplets transferred for every photon absorbed in pentacene, but only when the bandgap of the nanocrystals is close to resonance (±0.2 eV) with the triplet energy. Following triplet transfer, the excitation can undergo either charge separation, allowing photovoltaic operation, or radiative recombination in the nanocrystal, enabling luminescent harvesting of triplet exciton energy in light emitting structures.
dc.languageen_USen
dc.language.isoen_USen
dc.publisherNPG
dc.titleResonant Energy Transfer of Triplet Excitons from Pentacene to PbSe Nanocrystalsen
dc.typeArticle
dc.description.versionThis is the author's accepted manuscript and will be under embargo until the 5th of April 2015. The final version is published by NPG in Nature Materials here: http://www.nature.com/nmat/journal/v13/n11/full/nmat4093.html.en
prism.endingPage1038
prism.publicationDate2014en
prism.publicationNameNature Materialsen
prism.startingPage1033
prism.volume13en
dc.rioxxterms.funderGates Cambridge Trust; KACST-Cambridge Research Project; Selwyn College, Cambridge; Herchel Smith Research Fellowship; Studienstiftung des Deutschen Volkes; Corpus Christi College, Cambridge; Engineering and Physical Sciences Research Council; Winton Programme for the Physics of Sustainability
dcterms.dateAccepted2014-08-27en
rioxxterms.versionofrecord10.1038/nmat4093en
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2014-10-05en
dc.contributor.orcidGreenham, Neil [0000-0002-2155-2432]
dc.contributor.orcidFriend, Richard [0000-0001-6565-6308]
dc.contributor.orcidRao, Akshay [0000-0003-0320-2962]
dc.identifier.eissn1476-4660
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idEPSRC (EP/M005143/1)
pubs.funder-project-idEPSRC (EP/G060738/1)
rioxxterms.freetoread.startdate2015-04-05


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