Resonance energy transfer in self-organized organic/inorganic dendrite structures

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

12 Scopus Citations
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Author(s)

  • D. Melnikau
  • D. Savateeva
  • V. Lesnyak
  • N. Gaponik
  • Y. Núnez Fernández
  • And 5 others
  • M. I. Vasilevskiy
  • M. F. Costa
  • K. E. Mochalov
  • V. Oleinikov
  • Y. P. Rakovich

Detail(s)

Original languageEnglish
Pages (from-to)9317-9323
Journal / PublicationNanoscale
Volume5
Issue number19
Publication statusPublished - 7 Oct 2013
Externally publishedYes

Abstract

Hybrid materials formed by semiconductor quantum dots and J-aggregates of cyanine dyes provide a unique combination of enhanced absorption in inorganic constituents with large oscillator strength and extremely narrow exciton bands of the organic component. The optical properties of dendrite structures with fractal dimension 1.7-1.8, formed from J-aggregates integrated with CdTe quantum dots (QDs), have been investigated by photoluminescence spectroscopy and fluorescence lifetime imaging microscopy. Our results demonstrate that (i) J-aggregates are coupled to QDs by Förster-type resonant energy transfer and (ii) there are energy fluxes from the periphery to the centre of the structure, where the QD density is higher than in the periphery of the dendrite. Such an anisotropic energy transport can be only observed when dendrites are formed from QDs integrated with J-aggregates. These QD/J-aggregate hybrid systems can have applications in light harvesting systems and optical sensors with extended absorption spectra. © The Royal Society of Chemistry 2013.

Citation Format(s)

Resonance energy transfer in self-organized organic/inorganic dendrite structures. / Melnikau, D.; Savateeva, D.; Lesnyak, V.; Gaponik, N.; Fernández, Y. Núnez; Vasilevskiy, M. I.; Costa, M. F.; Mochalov, K. E.; Oleinikov, V.; Rakovich, Y. P.

In: Nanoscale, Vol. 5, No. 19, 07.10.2013, p. 9317-9323.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review