Oligocarbazole-based chromophores for efficient thin-film dye-sensitized solar cells.

ABSTRACT

Carb your enthusiasm Carbazole-based sensitizers with high extinction coefficients are synthesized for application in dye-sensitized solar cells (DSCs). The dyes perform efficiently with both iodine and cobalt electrolytes, showing power conversion efficiencies of up to 5.8% on TiO2 films of 15 µm thickness, and retaining 90% of their efficiency in devices with thinner films.