Coupling Perovskite Quantum Dot Pairs in Solution using a Nanoplasmonic Assembly

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dc.contributor.authorZhang, Hao
dc.contributor.authorMoazzezi, Parinaz
dc.contributor.authorRen, Juanjuan
dc.contributor.authorHenderson, Brett
dc.contributor.authorCordoba, Cristina
dc.contributor.authorYeddu, Vishal
dc.contributor.authorBlackburn, Arthur M.
dc.contributor.authorSaidaminov, Makhsud I.
dc.contributor.authorPaci, Irina
dc.contributor.authorHughes, Stephen
dc.contributor.authorGordon, Reuven
dc.date.accessioned2023-04-27T21:11:21Z
dc.date.copyright2022en_US
dc.date.issued2022-06-29
dc.description.abstractPerovskite quantum dots (PQDs) provide a robust solution-based approach to efficient solar cells, bright light emitting devices, and quantum sources of light. Quantifying heterogeneity and understanding coupling between dots is critical for these applications. We use double-nanohole optical trapping to size individual dots and correlate to emission energy shifts from quantum confinement. We were able to assemble a second dot in the trap, which allows us to observe the coupling between dots. We observe a systematic red-shift of 1.1 ± 0.6 meV in the emission wavelength. Theoretical analysis shows that the observed shift is consistent with resonant energy transfer and is unusually large due to moderate-to-large quantum confinement in PQDs. This demonstrates the promise of PQDs for entanglement in quantum information applications. This work enables future in situ control of PQD growth as well as studies of the coupling between small PQD assemblies with quantum information applications in mind.en_US
dc.description.embargo2023-06-29
dc.description.reviewstatusRevieweden_US
dc.description.scholarlevelFacultyen_US
dc.description.sponsorshipThe authors thank the NSERC CREATE in Quantum Computing program and the fabrication facilities of CAMTEC. We also acknowledge NSERC for funding through the Discovery Grants program, the Canadian Foundation for Innovation (CFI) for computational infrastructure funding through the Innovation Fund, and CMC Microsystems for the provision of COMSOL Multiphysics.en_US
dc.identifier.citationZhang, H., Moazzezi, P., Ren, J., Henderson, B., Cordoba, C., Yeddu, V., Blackburn, A. M., Saidaminov, M. I., Paci, I., Hughes, S., & Gordon, R. (2022). Coupling Perovskite Quantum Dot Pairs in Solution using a Nanoplasmonic Assembly. Nano Letters, 22(13), 5287–5293. https://doi.org/10.1021/acs.nanolett.2c01222en_US
dc.identifier.urihttps://doi.org/10.1021/acs.nanolett.2c01222
dc.identifier.urihttp://hdl.handle.net/1828/15013
dc.language.isoenen_US
dc.publisherNano Lettersen_US
dc.subjectperovskite quantum dots
dc.subjectsingle-dot trapping
dc.subjectoptical tweezer
dc.subjectoptical assembly
dc.subjectheterogeneity
dc.subjectresonant energy transfer
dc.subjectCentre for Advanced Materials and Related Technology (CAMTEC)
dc.subject.departmentDepartment of Electrical and Computer Engineering
dc.subject.departmentDepartment of Chemistry
dc.subject.departmentDepartment of Physics and Astronomy
dc.titleCoupling Perovskite Quantum Dot Pairs in Solution using a Nanoplasmonic Assemblyen_US
dc.typePostprinten_US

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