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

DANIEL HEREDIA,; JOSE NATERA; MIGUEL GERVALDO; LUIS OTERO; FERNANDO FUNGO; CHI-YEN LIN; KEN-TSUNG WONG

ORGANIC LETTERS

American Chemical Society

Año: 2010 vol. 12 p. 12 - 15

1523-7060

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 Å (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%.