3, 4-Ethylenedioxythiophene-based cobalt complex: an efficient co-mediator in dye-sensitized solar cells with poly(3, 4-ethylenedioxythiophene) counter-electrode. (10th October 2015)

• Record Type: Journal Article
• Authors: Koussi-Daoud, Sana; Schaming, Delphine; Fillaud, Laure; Trippé-Allard, Gaëlle; Lafolet, Frédéric; Polanski, Enrico; Nonomura, Kazuteru; Vlachopoulos, Nikolaos; Hagfeldt, Anders; Lacroix, Jean-Christophe
• Is Part Of: Electrochimica acta. Volume 179(2015)
• Page Start: 237
• Page End: 240
• Publication Date: 2015-10-10
• Subjects: Dye-sensitized solar cells -- cobalt shuttle -- EDOT ligand -- PEDOT; Electrochemistry -- Periodicals; Electrochemistry, Industrial -- Periodicals; 541.37
• DOI: 10.1016/j.electacta.2015.04.173
• Languages: English
• ISSNs: 0013-4686

Abstract

Graphical abstract: Abstract: A mixture of Co(phen) 3+/2+ and Co(EtPy) 3+/2+ complexes, where EtPy is a terpyridine ligand bearing an 3, 4- ethylenedioxythiophene (EDOT) substituent, has been used as redox mediator in dye-sensitized solar cells. This combination of cobalt complexes allows an electron cascade leading to enhanced cell efficiency. To explain this result, we propose a synergy between the EDOT-functionalized cobalt complex and the PEDOT counter-electrode, which favors electron transfer and reduces recombination.