The formation of molecular aggregates of sulfophthalocyanine in complexes with semiconductor nanocrystals

D. R. Dadadzhanov, I. V. Martynenko, A. O. Orlova, V. G. Maslov, A. V. Fedorov, A. V. Baranov

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

In this study, complexes of CdSe/ZnS quantum dots and quantum rods with sulfophthalocyanine molecules have been formed. Analysis of spectral and luminescent properties of solutions of the complexes has revealed that an increase in the number of molecules per one nanocrystal in a mixed solution results in a noticeable decrease in the intensity of the luminescence of the quantum dots and quantum rods. In addition, it has been found that, upon an increase in the concentration of sulfophthalocyanine molecules, the absorption spectra of the samples in the region of their first absorption band have signs of formation of nonluminiscent aggregates of sulfophthalocyanine molecules. Analysis of the absorption spectra of the mixed solutions has made it possible to demonstrate that the complexes with the quantum rods have a content of the sulfophthalocyanine aggregates significantly lower than the complexes with the quantum dots.

Original languageEnglish
Pages (from-to)738-743
Number of pages6
JournalOptics and Spectroscopy (English translation of Optika i Spektroskopiya)
Volume119
Issue number5
DOIs
StatePublished - 1 Nov 2015
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics

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