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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
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- Cong, Jiayan (author)
- KTH,Tillämpad fysikalisk kemi
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- Kinschel, Dominik (author)
- KTH,Tillämpad fysikalisk kemi,Dyenamo AB, Sweden
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- Daniel, Quentin (author)
- KTH,Organisk kemi
- show more...
- Gabrielsson, E. (author)
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- (creator_code:org_t)
- 2016
- 2016
- English.
- In: Journal of Materials Chemistry A. - : Royal Society of Chemistry. - 2050-7488 .- 2050-7496. ; 4:38, s. 14550-14554
- Journal article (peer-reviewed)
Abstract
Subject headings
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- 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.
Subject headings
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Keyword
- 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
Publication and Content Type
- ref (subject category)
- art (subject category)
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- Chen, Hong
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- Svensson, Per H.
- Sun, Licheng
- Kloo, Lars
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