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Cobalt Polypyridyl-Based Electrolytes for p-Type Dye-Sensitized Solar Cells
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- Gibson, Elizabeth A. (author)
- Uppsala universitet,Institutionen för fysikalisk och analytisk kemi
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- Smeigh, Amanda L. (author)
- Uppsala universitet,Institutionen för fotokemi och molekylärvetenskap
- Le Pleux, Loic (author)
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- Odobel, Fabrice (author)
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- (creator_code:org_t)
- 2011-04-26
- 2011
- English.
- In: The Journal of Physical Chemistry C. - : American Chemical Society (ACS). - 1932-7447 .- 1932-7455. ; 115:19, s. 9772-9779
- Journal article (peer-reviewed)
Abstract
Subject headings
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- A series of polypyridyl cobalt complexes with different substituents was applied as redox mediators in p-type dye-sensitized solar cells (p-DSCs), consisting of mesoporous NiO sensitized with a perylenemonoimide naphthalenediimide (PMI-NDI) dyad. The photocurrent and photovoltages of the devices were found to depend on the steric bulk of the redox species rather than their electrochemical potential. Bulky substituents were found to slow the detrimental charge recombination reactions between holes in the NiO semiconductor and the reduced form of the redox couple. The open-circuit potential (V-OC) of each of the devices was superior to the equivalent PMI-NDIsensitized p-DSCs containing the triiodide/iodide redox couple.
Subject headings
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
Keyword
- Chemistry
- Kemi
Publication and Content Type
- ref (subject category)
- art (subject category)
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