Novel polyene dyes for highly efficient dye-sensitized solar cells

We have developed an efficient and novel polyene-dye-sensitized nanocrystalline TiO2 solar cells producing a 6.8% solar energy-to-electricity conversion efficiency (eta) under AM 1.5 irradiation (100 mW cm(-2)): short-circuit current density (J(sc)), 12.9 mA cm(-2), open-circuit photovoltage (V-oc), 0.71 V, fill factor (ff), 0.74.