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

E. Seliverstova, N. Ibrayev

Результат исследований: Материалы для журнала

Аннотация

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.

Язык оригиналаАнглийский
Номер статьи012011
ЖурналIOP Conference Series: Materials Science and Engineering
Том289
Номер выпуска1
DOI
СостояниеОпубликовано - 12 янв 2018
Опубликовано для внешнего пользованияДа
Событие6th International Conference on Modern Technologies for Non-Destructive Testing - Tomsk, Российская Федерация
Продолжительность: 9 окт 201714 окт 2017

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

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