Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6609984 | Electrochimica Acta | 2015 | 6 Pages |
Abstract
This article presents the first report of a tandem dye-sensitized solar cell employing optically transparent, non-corrosive metal-free thiolate/disulfide based electrolytes and a set of sensitizers with complementary absorption spectra. Sodium 1-phenyl-1H-tetrazole-5-thiolate and its reduced form 5,5â²-dithiobis(1-phenyl-1H-tetrazole) (thiolate/disulfide) were used as redox mediators for photocathodic dye-sensitized solar cells (p-DSCs), yielding higher open circuit voltages (285Â mV) compared to the more commonly used iodide-based redox couple (226Â mV). The herein achieved efficiencies of p-DSCs (0.51 %) and pn-DSCs (1.33 %) employing the thiolate/disulfide-based electrolytes were comparable to p-DSCs and pn-DSCs employing conventional iodide-based electrolytes (0.44 % and 1.19 %).
Keywords
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Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Satvasheel Powar, Rishabh Bhargava, Torben Daeneke, Günther Götz, Peter Bäuerle, Thomas Geiger, Simon Kuster, Frank A. Nüesch, Leone Spiccia, Udo Bach,