4.8 Article

Enhancement of Near-IR Photoelectric Conversion in Dye-Sensitized Solar Cells Using an Osmium Sensitizer with Strong Spin-Forbidden Transition

Journal

JOURNAL OF PHYSICAL CHEMISTRY LETTERS
Volume 3, Issue 3, Pages 394-398

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/jz2016445

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Funding

  1. Cabinet Office, Japan
  2. Japan Society for the Promotion of Science (JSPS) for Young Scientists
  3. Grants-in-Aid for Scientific Research [10J10095] Funding Source: KAKEN

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A new osmium (Os) complex of the [Os(tcterpy)-(4,4'-bis(p-butoxystyryl)-2,2'-bipyridine)Cl]PF6 (Os-stbpy) has been synthesized and characterized for dye-sensitized solar cells (DSSCs). The Os-stbpy dye shows enhanced spin-forbidden absorptions around 900 nm. The DSSCs with Os-stbpy show a wide-band spectral response up to 1100 nm with high overall conversion efficiency of 6.1% under standard solar illumination.

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