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Dye regeneration kinetics in dye-sensitized solar cells

Journal Article


Abstract


  • The ideal driving force for dye regeneration is an important parameter for the design of efficient dye-sensitized solar cells. Here, nanosecond laser transient absorption spectroscopy was used to measure the rates of regeneration of six organic carbazole-based dyes by nine ferrocene derivatives whose redox potentials vary by 0.85 V, resulting in 54 different driving-force conditions. It was found that the reaction follows the behavior expected for the Marcus normal region for driving forces below 29 kJ mol -1 (δ = 0.30 V). Driving forces of 29-101 kJ mol -1 (δ = 0.30-1.05 V) resulted in similar reaction rates, indicating that dye regeneration is diffusion controlled. Quantitative dye regeneration (theoretical regeneration yield 99.9%) can be achieved with a driving force of 20-25 kJ mol -1 (δ ≃ 0.20-0.25 V). © 2012 American Chemical Society.

UOW Authors


  •   Daeneke, Torben (external author)
  •   Mozer, Attila
  •   Uemura, Yu (external author)
  •   Makuta, S (external author)
  •   Fekete, M (external author)
  •   Tachibana, Y (external author)
  •   Koumura, Nagatoshi (external author)
  •   Bach, Udo (external author)
  •   Spiccia, Leone (external author)

Publication Date


  • 2012

Citation


  • Daeneke, T., Mozer, A. J., Uemura, Y., Makuta, S., Fekete, M., Tachibana, Y., Koumura, N., Bach, U. & Spiccia, L. (2012). Dye regeneration kinetics in dye-sensitized solar cells. Journal of the American Chemical Society, 134 (41), 16925-16928.

Scopus Eid


  • 2-s2.0-84867532609

Ro Metadata Url


  • http://ro.uow.edu.au/scipapers/4591

Number Of Pages


  • 3

Start Page


  • 16925

End Page


  • 16928

Volume


  • 134

Issue


  • 41

Abstract


  • The ideal driving force for dye regeneration is an important parameter for the design of efficient dye-sensitized solar cells. Here, nanosecond laser transient absorption spectroscopy was used to measure the rates of regeneration of six organic carbazole-based dyes by nine ferrocene derivatives whose redox potentials vary by 0.85 V, resulting in 54 different driving-force conditions. It was found that the reaction follows the behavior expected for the Marcus normal region for driving forces below 29 kJ mol -1 (δ = 0.30 V). Driving forces of 29-101 kJ mol -1 (δ = 0.30-1.05 V) resulted in similar reaction rates, indicating that dye regeneration is diffusion controlled. Quantitative dye regeneration (theoretical regeneration yield 99.9%) can be achieved with a driving force of 20-25 kJ mol -1 (δ ≃ 0.20-0.25 V). © 2012 American Chemical Society.

UOW Authors


  •   Daeneke, Torben (external author)
  •   Mozer, Attila
  •   Uemura, Yu (external author)
  •   Makuta, S (external author)
  •   Fekete, M (external author)
  •   Tachibana, Y (external author)
  •   Koumura, Nagatoshi (external author)
  •   Bach, Udo (external author)
  •   Spiccia, Leone (external author)

Publication Date


  • 2012

Citation


  • Daeneke, T., Mozer, A. J., Uemura, Y., Makuta, S., Fekete, M., Tachibana, Y., Koumura, N., Bach, U. & Spiccia, L. (2012). Dye regeneration kinetics in dye-sensitized solar cells. Journal of the American Chemical Society, 134 (41), 16925-16928.

Scopus Eid


  • 2-s2.0-84867532609

Ro Metadata Url


  • http://ro.uow.edu.au/scipapers/4591

Number Of Pages


  • 3

Start Page


  • 16925

End Page


  • 16928

Volume


  • 134

Issue


  • 41