Dye-sensitized solar cell with integrated triplet-triplet annihilation upconversion system

Andrew Nattestad, Yuen Yap Cheng, Rowan W. Macqueen, Tim F. Schulze, Fletcher W. Thompson, Attila J. Mozer, Burkhard Fückel, Tony Khoury, Maxwell J Crossley, Klaus Lips, Gordon G. Wallace, Timothy W. Schmidt

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Photon upconversion (UC) by triplet-triplet annihilation (TTA-UC) is employed in order to enhance the response of solar cells to sub-bandgap light. Here, we present the first report of an integrated photovoltaic device, combining a dye-sensitized solar cell (DSC) and TTA-UC system. The integrated device displays enhanced current under sub-bandgap illumination, resulting in a figure of merit (FoM) under low concentration (3 suns), which is competitive with the best values recorded to date for nonintegrated systems. Thus, we demonstrate both the compatibility of DSC and TTA-UC and a viable method for device integration.

Original languageEnglish
Pages (from-to)2073-2078
Number of pages6
JournalJournal of Physical Chemistry Letters
Issue number12
Publication statusPublished - 20 Jun 2013
Externally publishedYes


  • DSC
  • efficiency
  • figure of merit
  • photochemical upconversion
  • solar cell
  • sub-bandgap excitation

Cite this

Nattestad, A., Cheng, Y. Y., Macqueen, R. W., Schulze, T. F., Thompson, F. W., Mozer, A. J., Fückel, B., Khoury, T., Crossley, M. J., Lips, K., Wallace, G. G., & Schmidt, T. W. (2013). Dye-sensitized solar cell with integrated triplet-triplet annihilation upconversion system. Journal of Physical Chemistry Letters, 4(12), 2073-2078. https://doi.org/10.1021/jz401050u