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Highly Efficient Porphyrin Sensitizers for Dye-Sensitized Solar Cells

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2007

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Campbell, Wayne M.
Jolley, Kenneth W.
Wagner, Pawel
Wagner, Klaudia
Walsh, Penny J.
Gordon, Keith C.
Nazeeruddin, Mohammad K.
Wang, Qing
Grätzel, Michael
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http://nbn-resolving.de/urn:nbn:de:bsz:352-252065
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https://doi.org/10.1021/jp0750598
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The Journal of Physical Chemistry C. 2007, 111(32), pp. 11760-11762. ISSN 1932-7447. eISSN 1932-7455. Available under: doi: 10.1021/jp0750598

Zusammenfassung

In TiO2-based dye-sensitized nanocrystalline solar cells, efficiencies of up to 11% have been obtained using Ru dyes, but the limited availability of these dyes together with their undesirable environmental impact have led to the search for cheaper and safer organic-based dyes. In this Letter, we report the synthesis, electronic, and photovoltaic properties of novel green porphyrin sensitizers. All six porphyrin dyes give solar cell efficiencies of ≥5%, but the best performing dye under standard global AM 1.5 solar conditions gives a short circuit photocurrent density (jsc) of 14.0 ± 0.20 mA/cm2, an open circuit voltage of 680 ± 30 mV, and a fill factor of 0.74, corresponding to an overall conversion efficiency of 7.1%, which, for porphyrin-based sensitizers, is unprecedented. This same dye gives an efficiency of 3.6% in a solid-state cell with spiro-MeOTAD as the hole transporting component, comparable to solid-state cells incorporating the best performing ruthenium dyes.

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530 Physik

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ISO 690CAMPBELL, Wayne M., Kenneth W. JOLLEY, Pawel WAGNER, Klaudia WAGNER, Penny J. WALSH, Keith C. GORDON, Lukas SCHMIDT-MENDE, Mohammad K. NAZEERUDDIN, Qing WANG, Michael GRÄTZEL, David L. OFFICER, 2007. Highly Efficient Porphyrin Sensitizers for Dye-Sensitized Solar Cells. In: The Journal of Physical Chemistry C. 2007, 111(32), pp. 11760-11762. ISSN 1932-7447. eISSN 1932-7455. Available under: doi: 10.1021/jp0750598
BibTex
@article{Campbell2007Highl-25206,
  year={2007},
  doi={10.1021/jp0750598},
  title={Highly Efficient Porphyrin Sensitizers for Dye-Sensitized Solar Cells},
  number={32},
  volume={111},
  issn={1932-7447},
  journal={The Journal of Physical Chemistry C},
  pages={11760--11762},
  author={Campbell, Wayne M. and Jolley, Kenneth W. and Wagner, Pawel and Wagner, Klaudia and Walsh, Penny J. and Gordon, Keith C. and Schmidt-Mende, Lukas and Nazeeruddin, Mohammad K. and Wang, Qing and Grätzel, Michael and Officer, David L.}
}
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