4.8 Article

Spirobifluorene-Bridged Donor/Acceptor Dye for Organic Dye-Sensitized Solar Cells

Journal

ORGANIC LETTERS
Volume 12, Issue 1, Pages 12-15

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/ol902314z

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Funding

  1. Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET-Argentina)
  2. Agencia Nacional de Promocion Cientifica y Tecnologica (ANPCYT-Argentina)
  3. Secretaria de Ciencia y Tecnica Universidad Nacional de Rio Cuarto (SECYT-UNRC)
  4. National Science Council of Taiwan

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A new dye, SSD1, featuring two donor/acceptor chromophores aligned in a spiro configuration with two anchoring groups separated at a distance of 10.05 angstrom (closely matching the distance between the adsorption sites of the anatase TiO2 surface) undergoes efficient dye adherence on TiO2 films. A dye-sensitized solar cell Incorporating SSD1 exhibited a short-circuit current of 8.9 mA cm(-2), an open-circuit voltage of 0.63 V, a fill factor of 0.67, and a power conversion efficiency of 3.75%.

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