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Influence of Sodium Cations of N3 Dye on the Photovoltaic Performance and Stability of Dye‐Sensitized Solar Cells |
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| Authors: | Luísa Andrade Shaik M. Zakeeruddin Dr. Mohammad K. Nazeeruddin Dr. Helena Aguilar Ribeiro Dr. Adélio Mendes Prof. Michael Grätzel Prof. |
| Affiliation: | 1. Laboratory of Process, Environment and Energy Engineering, Department of Chemical Engineering, Faculty of Engineering at the University of Porto, Rua Dr. Roberto Frias, s/n 4200‐465 Porto (Portugal), Fax: (+351)?225081449;2. Laboratory of Photonics and Interfaces, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, 1015 Lausanne (Switzerland), Fax: (+41)?216934111 |
| Abstract: | Little things count: The number of protons and the nature of cations of the dye influence the open‐circuit potential and the short circuit current of dye‐sensitized solar cells (DSCs, see picture). Thus, the effect of substituting the two tetrabutylammonium counter ions in the standard N719 dye by sodium ions allows the improvement on the performance and stability of DSCs.  |
| Keywords: | dyes/pigments electrochemical impedance spectroscopy electron transport photochemistry solar cells |