Abstract
Osmium polypyridyl complexes were used as sensitizers in solar cells that utilize nanocrystalline titanium dioxide photoelectrodes. Exposure of TiO2 electrodes to sources of OsII(H2L′)2(CN)2 (where L′ is 4,4′-dicarboxylato-2,2′-bipyridine) or OsII(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 |
| Publication status | Published - Apr 20 2000 |
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ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Engineering(all)
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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
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TY - JOUR
T1 - 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
AU - Sauvé, Geneviève
AU - Cass, Marion E.
AU - Doig, Stephen J.
AU - Lauermann, Iver
AU - Pomykal, Katherine
AU - Lewis, Nathan S
PY - 2000/4/20
Y1 - 2000/4/20
N2 - Osmium polypyridyl complexes were used as sensitizers in solar cells that utilize nanocrystalline titanium dioxide photoelectrodes. Exposure of TiO2 electrodes to sources of OsII(H2L′)2(CN)2 (where L′ is 4,4′-dicarboxylato-2,2′-bipyridine) or OsII(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.
AB - Osmium polypyridyl complexes were used as sensitizers in solar cells that utilize nanocrystalline titanium dioxide photoelectrodes. Exposure of TiO2 electrodes to sources of OsII(H2L′)2(CN)2 (where L′ is 4,4′-dicarboxylato-2,2′-bipyridine) or OsII(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.
UR - http://www.scopus.com/inward/record.url?scp=0033750827&partnerID=8YFLogxK
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M3 - Article
AN - SCOPUS:0033750827
VL - 104
SP - 3488
EP - 3491
JO - Journal of Physical Chemistry B Materials
JF - Journal of Physical Chemistry B Materials
SN - 1520-6106
IS - 15
ER -