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Statistical Analysis of Photoluminescence Decay Kinetics in Quantum Dot Ensembles: Effects of Inorganic Shell Composition and Environment

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dc.contributor.authorMartins, J. R.
dc.contributor.authorKrivenkov, V.
dc.contributor.authorBernardo, C. R.
dc.contributor.authorSamokhvalov, P.
dc.contributor.authorNabiev, I.
dc.contributor.authorRakovich, Y. P.
dc.contributor.authorVasilevskiy, M. I.
dc.contributor.authorСамохвалов, Павел Сергеевич
dc.date.accessioned2024-12-25T10:39:04Z
dc.date.available2024-12-25T10:39:04Z
dc.date.issued2022
dc.description.abstractDiscerning the kinetics of photoluminescence (PL) decay of packed quantum dots (QDs) and QD-based hybrid materials is of crucial importance for achieving their promising potential. However, the interpretation of the decay kinetics of QD-based systems, which usually are not single-exponential, remains challenging. Here, we present a method for analyzing photoluminescence (PL) decay curves of fluorophores by studying their statistical moments. A certain combination of such moments, named as the n-th order moments' ratio, Rn, is studied for several theoretical decay curves and experimental PL kinetics of CdSe quantum dots (QDs) acquired by time-correlated single photon counting (TCSPC). For the latter, three different case studies using the Rn ratio analysis are presented, namely, (i) the effect of the inorganic shell composition and thickness of the core-shell QDs, (ii) QD systems with Förster resonance energy transfer (FRET) decay channels, and (iii) system of QDs near a layer of plasmonic nanoparticles. The proposed method is shown to be efficient for the detection of slight changes in the PL kinetics, being time-efficient and requiring low computing power for performing the analysis. It can also be a powerful tool to identify the most appropriate physically meaningful theoretical decay function, which best describes the systems under study. © 2022 The Authors. Published by American Chemical Society.
dc.identifier.citationStatistical Analysis of Photoluminescence Decay Kinetics in Quantum Dot Ensembles: Effects of Inorganic Shell Composition and Environment / Martins, J.R. [et al.] // Journal of Physical Chemistry C. - 2022. - 10.1021/acs.jpcc.2c06134
dc.identifier.doi10.1021/acs.jpcc.2c06134
dc.identifier.urihttps://www.doi.org/10.1021/acs.jpcc.2c06134
dc.identifier.urihttps://www.scopus.com/record/display.uri?eid=2-s2.0-85142705678&origin=resultslist
dc.identifier.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000890722100001
dc.identifier.urihttps://openrepository.mephi.ru/handle/123456789/27667
dc.relation.ispartofJournal of Physical Chemistry C
dc.titleStatistical Analysis of Photoluminescence Decay Kinetics in Quantum Dot Ensembles: Effects of Inorganic Shell Composition and Environment
dc.typeArticle
dspace.entity.typePublication
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