Optimization and characterization of TiO2-based solar cell design using diverse plant pigments

R. A. Voloshin, V. S. Bedbenov, D. A. Gabrielyan, N. G. Brady, V. D. Kreslavski, S. K. Zharmukhamedov, M. V. Rodionova, B. D. Bruce, S. I. Allakhverdiev

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)


The design of electrochemical solar cells (SCs), including those composed of biological pigments is an actively developing direction of obtaining alternative energy. SCs were studied under different temperatures, light intensities and spectral conditions. Furthermore, to understand processes occurring in the SCs, investigations characterizing the efficiency and stability with regard to environmental factors are also required. For this aim, novel instrumentation for the investigation of environmental effects on photocurrent generated by SCs has been designed and constructed. The system can be a model, which reflects conditions required for effective and stable functioning of the solar cells. Preliminary results are shown for two types of solar cells with two photosensitizers: thylakoid membrane preparations and anthocyanin-enriched raspberry extracts. It was shown that electrogenic activity decreased by a half at 40 °C and returned back to the initial value under gradual cooling. Maximum current obtained from the thylakoid-based SC was 0.46 μA, while maximum current generated by the anthocyanin-based SC was 1.75 μA. The goal of this investigation is to find new ways to increase efficiency and stability of bio-based SCs. In future, this measuring system can be used for investigation of solar cells based on long-wave forms of chlorophylls (Chls d and f) and components of the photosynthetic apparatus comprising these chlorophylls.

Original languageEnglish
Pages (from-to)8576-8585
Number of pages10
JournalInternational Journal of Hydrogen Energy
Issue number12
Publication statusPublished - Mar 23 2017
Externally publishedYes


  • Biological pigments
  • Light
  • Photocurrent
  • Solar cells
  • Temperature
  • Thylakoid membrane preparations

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology


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