Dynamics of electron transfer in melanin-trinitrofluorenone system

A. O. Kostetskyi*, Yu. P. Piryatinski, A. B. Verbitsky, P. M. Lutsyk, A. G. Rozhin

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review


The kinetics of photoluminescence (PL) and time-resolved emission spectra (TRES) of melanin solutions with an effective electron acceptor 2,4,7-trinitrofluorenone (TNF) have been studied. Based on the analysis of the kinetic decay curves and TRES, the fast and slow PL decay components can be distinguished, which characterize the processes of a relaxation of excited states and charge transfer in the melanin-TNF molecular system. In this paper, the observed dependences have been analyzed and the model to explain such behavior of PL dynamic characteristics has been proposed.
Original languageEnglish
Pages (from-to)50-61
Number of pages12
JournalMolecular Crystals and Liquid Crystals
Issue number1
Publication statusPublished - 27 Jul 2021
EventXII International Conference "Electronic Processes in Organic and Inorganic Materials” (ICEPOM-12) - , Ukraine
Duration: 1 Jun 20205 Jun 2020


  • CT-states
  • donor-acceptor complexes
  • melanin
  • photoluminescence
  • timeresolved emission spectra
  • trinitrofluorenone
  • 3D maps
  • time-resolved emission spectra


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