Near-infrared sensitization solar cell with the electrode of aluminium phthalocyanine adsorbed on nanocrystalline titanium dioxide film

The dye-sensitized solar cell using visible and near-infrared sensitization of nanocrystalline TiO2 films by aluminium phthalocyanine, aluminium 2,9,16,23-tetraphenoxy-29H, 31H-phthalocyanine hydroxide (AlTPPc), was developed and its photoelectrochemical properties were investigated. The short-circuit photocurrent (I-SC) was 0.026 mA cm(-2), the open-circuit photovoltage (V-OC) was 186 mV, and the fill factor (FF) of solar cell using AlTPPc adsorbed on nanocrystalline TiO2 film electrode was estimated to be 40.4%, respectively. By using AlTPPc adsorbed on nanocrystalline TiO2 film electrode, photovoltage and photocurrent were higher compared with that of only nanocrystalline TiO2 film electrode and were maintained under near-infrared irradiation. Thus, the solar cell using the near-infrared sensitization by AlTPPc adsorbed on nanocrystalline TiO2 film electrode was developed. Copyright (C) 2002 Society of Porphyrins & Phthalocyanines.