The Preparation and Photovoltaic Properties of Quasi-solid State Dye-Sensitized Solar Cells Containing Long Wavelength Absorbing Squaraine Dye

Abstract

The performance of the quasi-solid state DSSC composed of long wavelength absorbing squaraine dye was investigated and compared with that of ruthenium-complex (N3) sensitized DSSC. In spite of the narrow sensitizing region of SQ dye from 500 nm to 750 nm, the quasi-solid state DSSCs gave a moderate solar energy-to-electricity conversion efficiency under AM 1.5 G irradiation (100 mW/cm2) of 2.34%, a short-circuit current density of 5.56 mA/cm2, with an open-circuit voltage of 650 mV.