Cobalt polypyridyl-based electrolytes for p-type dye-sensitized solar cells

Elizabeth A. Gibson, Amanda L. Smeigh, Loïc Le Pleux, Leif Hammarström, Fabrice Odobel, Gerrit Boschloo, Anders Hagfeldt

Research output: Contribution to journalArticle

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Abstract

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 (VOC) of each of the devices was superior to the equivalent PMI-NDI-sensitized p-DSCs containing the triiodide/iodide redox couple.

Original languageEnglish
Pages (from-to)9772-9779
Number of pages8
JournalJournal of Physical Chemistry C
Volume115
Issue number19
DOIs
Publication statusPublished - May 19 2011

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Cobalt
Electrolytes
cobalt
solar cells
dyes
electrolytes
recombination reactions
volatile organic compounds
photovoltages
Iodides
Photocurrents
Volatile organic compounds
iodides
photocurrents
Semiconductor materials
Oxidation-Reduction
Dye-sensitized solar cells
Networks (circuits)
naphthalenediimide
perylenemonoimide

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Electronic, Optical and Magnetic Materials
  • Surfaces, Coatings and Films
  • Energy(all)

Cite this

Gibson, E. A., Smeigh, A. L., Le Pleux, L., Hammarström, L., Odobel, F., Boschloo, G., & Hagfeldt, A. (2011). Cobalt polypyridyl-based electrolytes for p-type dye-sensitized solar cells. Journal of Physical Chemistry C, 115(19), 9772-9779. https://doi.org/10.1021/jp110473n

Cobalt polypyridyl-based electrolytes for p-type dye-sensitized solar cells. / Gibson, Elizabeth A.; Smeigh, Amanda L.; Le Pleux, Loïc; Hammarström, Leif; Odobel, Fabrice; Boschloo, Gerrit; Hagfeldt, Anders.

In: Journal of Physical Chemistry C, Vol. 115, No. 19, 19.05.2011, p. 9772-9779.

Research output: Contribution to journalArticle

Gibson, EA, Smeigh, AL, Le Pleux, L, Hammarström, L, Odobel, F, Boschloo, G & Hagfeldt, A 2011, 'Cobalt polypyridyl-based electrolytes for p-type dye-sensitized solar cells', Journal of Physical Chemistry C, vol. 115, no. 19, pp. 9772-9779. https://doi.org/10.1021/jp110473n
Gibson, Elizabeth A. ; Smeigh, Amanda L. ; Le Pleux, Loïc ; Hammarström, Leif ; Odobel, Fabrice ; Boschloo, Gerrit ; Hagfeldt, Anders. / Cobalt polypyridyl-based electrolytes for p-type dye-sensitized solar cells. In: Journal of Physical Chemistry C. 2011 ; Vol. 115, No. 19. pp. 9772-9779.
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