The influence of the distance between the donor-acceptor groups of polymethine dyes on their photovoltaic properties

E. Seliverstova, N. Ibrayev

Research output: Contribution to journalConference article

Abstract

Spectral-luminescent and photovoltaic properties of polymethine dyes of various structures are studied. It is shown that an increase in the length of the methylene chain between the active chromophores leads to a red-wave shift of the absorption and fluorescence spectra. Significant changes in the absorptivity and lifetime of fluorescence do not occur in this case. The best photovoltaic parameters have cells sensitized with shorter dye molecules. It is shown, that for a longer dye the resistance associated with electron recombination on the TiO2/electrolyte surface is much higher than the electron transfer resistance in the semiconductor, which reduces the efficiency of electron transfer in the solar cell, sensitized with longer dye molecules.

Original languageEnglish
Article number012011
JournalIOP Conference Series: Materials Science and Engineering
Volume289
Issue number1
DOIs
Publication statusPublished - 12 Jan 2018
Externally publishedYes
Event6th International Conference on Modern Technologies for Non-Destructive Testing - Tomsk, Russian Federation
Duration: 9 Oct 201714 Oct 2017

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

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