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Static cooperative luminescence quenching in nanoparticles
Linnaeus University, Faculty of Technology, Department of Mathematics. RAS, Moscow, Russia.ORCID iD: 0000-0003-2396-6193
RAS, Moscow, Russia.
2014 (English)In: Journal of Luminescence, ISSN 0022-2313, E-ISSN 1872-7883, Vol. 151, p. 88-92Article in journal (Refereed) Published
Abstract [en]

In nanoparticles (NPs) static quenching of luminescence may be slower than in bulk media due to the space restrictions on acceptor location. Many-body cooperative quenching (manifesting itself as, e.g., down-conversion) occurs when the donor energy is transferred to two-, three-, or more particles (a cooperative acceptor) at once. Random distribution of acceptor particles in diluted media accounts for the non-exponential form of the kinetics. When the analytical expression for the kinetics form is known, it can be fitted to the experiment in order to find various micro- and macro-quenching parameters of the luminescent material. In this paper, we present an analytical law for cooperative quenching kinetics in NPs at longer time. Its clear and compact form reflects the fact that, on average, donors located on the surface of NPs are the last to decay having acceptors on one side only. We compared the resulting formula with the Monte-Carlo computer simulation, and they show good agreement. (C) 2014 Elsevier B.V. All rights reserved.

Place, publisher, year, edition, pages
2014. Vol. 151, p. 88-92
Keywords [en]
Static quenching in nanoparticles, Down-conversion, Rare-earth ions
National Category
Mathematics
Research subject
Natural Science, Mathematics
Identifiers
URN: urn:nbn:se:lnu:diva-36089DOI: 10.1016/j.jlumin.2014.02.005ISI: 000336116300015Scopus ID: 2-s2.0-84897713375OAI: oai:DiVA.org:lnu-36089DiVA, id: diva2:734422
Available from: 2014-07-17 Created: 2014-07-17 Last updated: 2018-05-16Bibliographically approved

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Basieva, Irina

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
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  • vancouver
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More styles
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  • de-DE
  • en-GB
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  • nn-NO
  • nn-NB
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  • Other locale
More languages
Output format
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  • text
  • asciidoc
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