Highly efficient nonradiative energy transfer mediated light harvesting in water using aqueous CdTe quantum dot antennas

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buir.contributor.authorDemir, Hilmi Volkan
buir.contributor.orcidDemir, Hilmi Volkan|0000-0003-1793-112X
dc.citation.epage10730en_US
dc.citation.issueNumber10en_US
dc.citation.spage10720en_US
dc.citation.volumeNumber18en_US
dc.contributor.authorMutlugun, E.en_US
dc.contributor.authorSamarskaya, O.en_US
dc.contributor.authorOzel, T.en_US
dc.contributor.authorCicek, N.en_US
dc.contributor.authorGaponik, N.en_US
dc.contributor.authorEychmuller, A.en_US
dc.contributor.authorDemir, Hilmi Volkanen_US
dc.date.accessioned2015-07-28T11:59:24Z
dc.date.available2015-07-28T11:59:24Z
dc.date.issued2010en_US
dc.departmentDepartment of Physicsen_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.description.abstractWe present light harvesting of aqueous colloidal quantum dots to nonradiatively transfer their excitonic excitation energy efficiently to dye molecules in water, without requiring ligand exchange. These as-synthesized CdTe quantum dots that are used as donors to serve as light-harvesting antennas are carefully optimized to match the electronic structure of Rhodamine B molecules used as acceptors for light harvesting in aqueous medium. By varying the acceptor to donor concentration ratio, we measure the light harvesting factor, along with substantial lifetime modifications of these water-soluble quantum dots, from 25.3 ns to 7.2 ns as a result of their energy transfer with efficiency levels up to 86%. Such nonradiative energy transfer mediated light harvesting in aqueous medium holds great promise for future quantum dot multiplexed dye biodetection systems. (C) 2010 Optical Society of America.en_US
dc.identifier.doi10.1364/OE.18.010720en_US
dc.identifier.issn1094-4087
dc.identifier.urihttp://hdl.handle.net/11693/11949
dc.language.isoEnglishen_US
dc.publisherOptical Society of Americaen_US
dc.relation.isversionofhttp://dx.doi.org/10.1364/OE.18.010720en_US
dc.source.titleOptics Expressen_US
dc.subjectRhodamine-ben_US
dc.subjectLiving Cellsen_US
dc.subjectNanocrystalsen_US
dc.subjectDonorsen_US
dc.subjectDyesen_US
dc.subjectDnaen_US
dc.titleHighly efficient nonradiative energy transfer mediated light harvesting in water using aqueous CdTe quantum dot antennasen_US
dc.typeArticleen_US

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