Ultraefficient förster-type nonradiative energy transfer enabled by the complex dielectric medium with tuned permittivity

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buir.contributor.authorDemir, Hilmi Volkan
buir.contributor.orcidDemir, Hilmi Volkan|0000-0003-1793-112X
dc.citation.epage12413en_US
dc.citation.issueNumber22en_US
dc.citation.spage12405en_US
dc.citation.volumeNumber125en_US
dc.contributor.authorHernandez-Martinez, P. L.
dc.contributor.authorYücel, A. C.
dc.contributor.authorDemir, Hilmi Volkan
dc.date.accessioned2022-01-24T13:03:19Z
dc.date.available2022-01-24T13:03:19Z
dc.date.issued2021-06-10
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.description.abstractFörster-type nonradiative energy transfer (FRET) is one of the primary near-field phenomena and is a useful, fundamental mechanism allowing us to control the excitation energy flow. Using carefully chosen pairs of quantum emitters/absorbers (donors/acceptors), FRET has proved to be essential in a variety of light-generating and -harvesting systems. However, FRET takes place only in a limited spatial range, and its efficiency suffers from an adversely rapidly decreasing profile over the increasing distance between the donor and acceptor. To foster FRET, reaching ultimate levels of efficiency and extending its range, we systematically studied the FRET mechanism by tuning the background medium’s permittivity. The FRET rates of donor–acceptor pairs consisting of a point-like, quasi-0-dimensional quantum dot and quasi-2-dimensional quantum well nanostructures are analytically derived to characterize the change of FRET rates with respect to the medium’s permittivity. The analysis reveals that the FRET rate becomes singular when the permittivity approaches zero and there is a fixed value for the point-like and all other nanostructures, respectively. By setting the medium’s relative permittivity to realistic values near the singular point, which can be realized by a digital metamaterial approach, ultrahigh FRET rates and thereby ultraefficient FRET-based systems are achievable.en_US
dc.description.provenanceSubmitted by Mustafa Er (mer@bilkent.edu.tr) on 2022-01-24T13:03:19Z No. of bitstreams: 1 Ultraefficient_förster-type_nonradiative_energy_transfer_enabled_by_the_complex_dielectric_medium_with_tuned_permittivity.pdf: 3976631 bytes, checksum: 56ed7d63fdb213bef06c1ccdb95dc508 (MD5)en
dc.description.provenanceMade available in DSpace on 2022-01-24T13:03:19Z (GMT). No. of bitstreams: 1 Ultraefficient_förster-type_nonradiative_energy_transfer_enabled_by_the_complex_dielectric_medium_with_tuned_permittivity.pdf: 3976631 bytes, checksum: 56ed7d63fdb213bef06c1ccdb95dc508 (MD5) Previous issue date: 2021-06-10en
dc.identifier.doi10.1021/acs.jpcc.1c02685en_US
dc.identifier.eissn1932-7455
dc.identifier.issn1932-7447
dc.identifier.urihttp://hdl.handle.net/11693/76768
dc.language.isoEnglishen_US
dc.publisherAmerican Chemical Societyen_US
dc.relation.isversionofhttps://doi.org/10.1021/acs.jpcc.1c02685en_US
dc.source.titleThe Journal of Physical Chemistry Cen_US
dc.subjectCadmium sulfideen_US
dc.subjectCadmium selenideen_US
dc.subjectMathematical methodsen_US
dc.subjectResonance structuresen_US
dc.subjectFluorescence resonance energy transferen_US
dc.titleUltraefficient förster-type nonradiative energy transfer enabled by the complex dielectric medium with tuned permittivityen_US
dc.typeArticleen_US

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