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Spectrophotometric observations of thiacyanine dye J-aggregation on citrate capped silver nanoparticles

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The J-aggregation of anionic cyanine dye, 5,5’ – disulfopropyl-3,3’ – dichloro - thiacyanine sodium salt (TC) in the presence of 2x10-3 M KCl and citrate capped silver nanoparticles (AgNPs, diameter ~10nm) was investigated. The influence of added salt (KCl), as well as AgNPs and TC concentration on the intensity of the absorption bands with the maxima at 464 and 481 nm, characteristic of the J-aggregation of the dye in solution and on AgNPs surface, respectively, was studied. The spectrophotometric and fluorescence spectra confirmed that AgNPs induced the decomposition of J-aggregates formed in solution on the account of their formation on NPs surface. The obtained results enabled the evaluation of number of TC molecules per AgNPs participating in J-aggregate formation. The experimental results yielded about 320 molecules of TC per AgNPs in at least three layers in a slanted orientation.
Słowa kluczowe
Wydawca
Czasopismo
Rocznik
Tom
1
Numer
1
Opis fizyczny
Daty
otrzymano
2014-07-21
zaakceptowano
2015-02-04
online
2015-05-27
Twórcy
  • Department of Chemistry, Science University of
    Priština, 38220 KosovskaMitrovica, Serbia
autor
  • Vinča Institute of Nuclear
    Sciences, University of Belgrade, P.O. Box 522, Belgrade, Serbia
autor
  • Vinča Institute of Nuclear
    Sciences, University of Belgrade, P.O. Box 522, Belgrade, Serbia
Bibliografia
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_1515_nansp-2015-0004
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