Highly Efficient Porphyrin Sensitizers for Dye-Sensitized Solar Cells

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CAMPBELL, 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. 111(32), pp. 11760-11762. ISSN 1932-7447. eISSN 1932-7455. Available under: doi: 10.1021/jp0750598

@article{Campbell2007Highl-25206, title={Highly Efficient Porphyrin Sensitizers for Dye-Sensitized Solar Cells}, year={2007}, doi={10.1021/jp0750598}, 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.} }

Campbell, Wayne M. The Journal of Physical Chemistry : C ; 111 (2007), 32. - S. 11760–11762 Wang, Qing Wagner, Klaudia deposit-license eng Jolley, Kenneth W. Grätzel, Michael 2007 Wagner, Pawel Wang, Qing Campbell, Wayne M. Highly Efficient Porphyrin Sensitizers for Dye-Sensitized Solar Cells Grätzel, Michael Jolley, Kenneth W. Nazeeruddin, Mohammad K. Officer, David L. Schmidt-Mende, Lukas Gordon, Keith C. Walsh, Penny J. Gordon, Keith C. Walsh, Penny J. 2013-11-19T14:25:01Z Schmidt-Mende, Lukas Wagner, Pawel Officer, David L. Wagner, Klaudia 2013-11-19T14:25:01Z Nazeeruddin, Mohammad K. In TiO<sub>2</sub>-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 (j<sub>sc</sub>) of 14.0 ± 0.20 mA/cm<sup>2</sup>, 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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