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Size-dependent blinking of molecular aggregate total emission
KTH, School of Biotechnology (BIO), Theoretical Chemistry and Biology. Siberian Federal University, Russian Federation.
KTH, School of Biotechnology (BIO), Theoretical Chemistry and Biology. Siberian Federal University, Russian Federation.
KTH, School of Biotechnology (BIO), Theoretical Chemistry and Biology. Siberian Federal University, Russian Federation.
KTH, School of Biotechnology (BIO), Theoretical Chemistry and Biology. Siberian Federal University, Russian Federation.ORCID iD: 0000-0003-1269-8760
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2017 (English)In: Journal of Physics, Conference Series, ISSN 1742-6588, E-ISSN 1742-6596, Vol. 917, no 6, 062051Article in journal (Refereed) Published
Abstract [en]

Molecular aggregates are well known for their customizable optical properties. Vibronic coupling in monomers forming such aggregates offers rich opportunities for property tuning. We study generic molecular aggregate models of growing complexity (from a dimer up to a decamer) and report how vibronic coupling affects aggregate fluorescence intensity. The total aggregate fluorescence intensity is a measure sensitive to both vibronic coupling and Coulomb coupling between monomer transition densities. Using an exact diagonalization approach in the two-particle basis set, we show how the interplay between Coulomb and vibronic coupling affects aggregate fluorescence. Moreover, for H-aggregates we predict a periodic variation of the fluorescence intensity with aggregate size and show that vibronic interaction decreases the effect.

Place, publisher, year, edition, pages
Institute of Physics Publishing (IOPP), 2017. Vol. 917, no 6, 062051
National Category
Physical Chemistry
Identifiers
URN: urn:nbn:se:kth:diva-219893DOI: 10.1088/1742-6596/917/6/062051Scopus ID: 2-s2.0-85036476662OAI: oai:DiVA.org:kth-219893DiVA: diva2:1166535
Conference
4th International School and Conference "Saint Petersburg OPEN 2017" on Optoelectronics, Photonics, Engineering and Nanostructures, St. Petersburg Academic University, Saint-Petersburg, Russian Federation
Note

QC 20171215

Available from: 2017-12-15 Created: 2017-12-15 Last updated: 2017-12-15Bibliographically approved

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Savchenko, ViktoriiaZimin, AndreiKimberg, Victor

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Savchenko, ViktoriiaZimin, AndreiIgnatova, Nina Yu.Kimberg, VictorGelmukhanov, Faris
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