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Spirobifluorene-bridged donor/acceptor dye for organic dye-sensitized solar cells
Daniel Heredia1, Jose Natera, Miguel Gervaldo
1Departamento de Química, Universidad Nacional de Río Cuarto, Agencia Postal 3 (5800), Río Cuarto, Argentina.
Abstract:
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 A (closely matching the distance between the adsorption sites of the anatase TiO(2) surface) undergoes efficient dye adherence on TiO(2) 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%.
