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Issue 81, 2015
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Highly robust tetrazolate based complexes for efficient and long-term stable dye sensitized solar cells

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Abstract

We report a new family of ruthenium poly-pyridyl complexes that bear tetrazolate based ligands (either bi-chelate as in T162 or tri-chelate as in T120 and T147), along with their spectroscopic, electrochemical, and theoretical characterization. Dye-sensitized solar cells (DSSCs) with these complexes show good conversion efficiencies that are highly dependent on the respective electrolyte composition especially in the case of T120 and T147, due to their low lying LUMOs when compared to N719 and T162. DSSCs based on these dyes showed superb stability under light soaking at 70 °C for 2000 h. The T120 and T147 based cells retained their initial efficiencies after the long term-stability test, while the T162 and N719 efficiencies decreased by 18% and 40%, respectively.

Graphical abstract: Highly robust tetrazolate based complexes for efficient and long-term stable dye sensitized solar cells

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The article was received on 22 Jun 2015, accepted on 27 Jul 2015 and first published on 27 Jul 2015


Article type: Paper
DOI: 10.1039/C5RA11984G
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RSC Adv., 2015,5, 66047-66056

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    Highly robust tetrazolate based complexes for efficient and long-term stable dye sensitized solar cells

    T. A. Shoker, R. Tanios, R. Fayad and T. H. Ghaddar, RSC Adv., 2015, 5, 66047
    DOI: 10.1039/C5RA11984G

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