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Bis(1,1-bis(2-pyridyl)ethane)copper(i/II) as an efficient redox couple for liquid dye-sensitized solar cells
KTH, Skolan för kemivetenskap (CHE), Kemi, Tillämpad fysikalisk kemi.ORCID-id: 0000-0001-8084-1181
KTH, Skolan för kemivetenskap (CHE), Kemi, Tillämpad fysikalisk kemi. Dyenamo AB, Sweden.
KTH, Skolan för kemivetenskap (CHE), Kemi, Organisk kemi.
KTH, Skolan för kemivetenskap (CHE), Kemi, Tillämpad fysikalisk kemi.ORCID-id: 0000-0002-0387-2993
Vise andre og tillknytning
2016 (engelsk)Inngår i: Journal of Materials Chemistry A, ISSN 2050-7488, Vol. 4, nr 38, s. 14550-14554Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

A new redox couple, [Cu(bpye)2]+/2+, has been synthesized, and applied in dye-sensitized solar cells (DSSCs). Overall efficiencies of 9.0% at 1 sun and 9.9% at 0.5 sun were obtained, which are considerably higher than those obtained for cells containing the reference redox couple, [Co(bpy)3]2+/3+. These results represent a record for copper-based complex redox systems in liquid DSSCs. Fast dye regeneration, sluggish recombination loss processes, faster electron self-exchange reactions and suitable redox potentials are the main reasons for the observed increase in efficiency. In particular, the main disadvantage of cobalt complex-based redox couples, charge-transport problems, appears to be resolved by a change to copper complex redox couples. The results make copper complex-based redox couples very promising for further development of highly efficient DSSCs.

sted, utgiver, år, opplag, sider
Royal Society of Chemistry, 2016. Vol. 4, nr 38, s. 14550-14554
Emneord [en]
Cobalt compounds, Copper, Efficiency, Redox reactions, Solar cells, Cobalt complexes, Copper complexes, Dye regeneration, Electron self-exchange, Overall efficiency, Recombination loss, Redox potentials, Transport problems, Dye-sensitized solar cells
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Identifikatorer
URN: urn:nbn:se:kth:diva-195535DOI: 10.1039/c6ta06782dISI: 000385360300005Scopus ID: 2-s2.0-84989315761OAI: oai:DiVA.org:kth-195535DiVA, id: diva2:1046779
Forskningsfinansiär
Swedish Research Council Formas
Merknad

QC 20161115

Tilgjengelig fra: 2016-11-15 Laget: 2016-11-03 Sist oppdatert: 2019-12-09bibliografisk kontrollert

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