High quantum yield sensitization of nanocrystalline titanium dioxide photoelectrodes with cis-dicyanobis(4,4′-dicarboxy-2,2′-bipyridine)osmium(II) or tris(4,4′-dicarboxy-2,2′-bipyridine)osmium(II) complexes

Geneviève Sauvé; Marion E. Cass; Stephen J. Doig; Iver Lauermann; Katherine Pomykal; Nathan S. Lewis

doi:10.1021/jp994033g

High quantum yield sensitization of nanocrystalline titanium dioxide photoelectrodes with cis-dicyanobis(4,4′-dicarboxy-2,2′-bipyridine)osmium(II) or tris(4,4′-dicarboxy-2,2′-bipyridine)osmium(II) complexes

Geneviève Sauvé, Marion E. Cass, Stephen J. Doig, Iver Lauermann, Katherine Pomykal, Nathan S. Lewis

California Institute of Technology

Research output: Contribution to journal › Article › peer-review

105 Citations (Scopus)

Abstract

Osmium polypyridyl complexes were used as sensitizers in solar cells that utilize nanocrystalline titanium dioxide photoelectrodes. Exposure of TiO₂ electrodes to sources of Os^II(H₂L′)₂(CN)2 (where L′ is 4,4′-dicarboxylato-2,2′-bipyridine) or Os^II(H₂L′)3²⁺ extended the light absorption and spectral response of the cell to longer wavelengths than did exposure of TiO₂ to Ru(H₂L′)₂(NCS)₂. The Os complexes also provided very high external quantum yields for photocurrent flow and produced open-circuit voltages similar to those of the Ru complex. The Os-based systems therefore offer promise in developing efficient dye-sensitized nanocrystalline TiO₂-based photoelectrochemical cells.

Original language	English
Pages (from-to)	3488-3491
Number of pages	4
Journal	Journal of Physical Chemistry B
Volume	104
Issue number	15
DOIs	https://doi.org/10.1021/jp994033g
Publication status	Published - Apr 20 2000

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Surfaces, Coatings and Films
Materials Chemistry

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Sauvé, G., Cass, M. E., Doig, S. J., Lauermann, I., Pomykal, K., & Lewis, N. S. (2000). High quantum yield sensitization of nanocrystalline titanium dioxide photoelectrodes with cis-dicyanobis(4,4′-dicarboxy-2,2′-bipyridine)osmium(II) or tris(4,4′-dicarboxy-2,2′-bipyridine)osmium(II) complexes. Journal of Physical Chemistry B, 104(15), 3488-3491. https://doi.org/10.1021/jp994033g

High quantum yield sensitization of nanocrystalline titanium dioxide photoelectrodes with cis-dicyanobis(4,4′-dicarboxy-2,2′-bipyridine)osmium(II) or tris(4,4′-dicarboxy-2,2′-bipyridine)osmium(II) complexes. / Sauvé, Geneviève; Cass, Marion E.; Doig, Stephen J.; Lauermann, Iver; Pomykal, Katherine; Lewis, Nathan S.

In: Journal of Physical Chemistry B, Vol. 104, No. 15, 20.04.2000, p. 3488-3491.

Research output: Contribution to journal › Article › peer-review

Sauvé, G, Cass, ME, Doig, SJ, Lauermann, I, Pomykal, K & Lewis, NS 2000, 'High quantum yield sensitization of nanocrystalline titanium dioxide photoelectrodes with cis-dicyanobis(4,4′-dicarboxy-2,2′-bipyridine)osmium(II) or tris(4,4′-dicarboxy-2,2′-bipyridine)osmium(II) complexes', Journal of Physical Chemistry B, vol. 104, no. 15, pp. 3488-3491. https://doi.org/10.1021/jp994033g

Sauvé G, Cass ME, Doig SJ, Lauermann I, Pomykal K, Lewis NS. High quantum yield sensitization of nanocrystalline titanium dioxide photoelectrodes with cis-dicyanobis(4,4′-dicarboxy-2,2′-bipyridine)osmium(II) or tris(4,4′-dicarboxy-2,2′-bipyridine)osmium(II) complexes. Journal of Physical Chemistry B. 2000 Apr 20;104(15):3488-3491. https://doi.org/10.1021/jp994033g

Sauvé, Geneviève ; Cass, Marion E. ; Doig, Stephen J. ; Lauermann, Iver ; Pomykal, Katherine ; Lewis, Nathan S. / High quantum yield sensitization of nanocrystalline titanium dioxide photoelectrodes with cis-dicyanobis(4,4′-dicarboxy-2,2′-bipyridine)osmium(II) or tris(4,4′-dicarboxy-2,2′-bipyridine)osmium(II) complexes. In: Journal of Physical Chemistry B. 2000 ; Vol. 104, No. 15. pp. 3488-3491.

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