Photoelectrochemical Character of TiO_2 Nanocrystalline Electrodes Sensitized by Aluminum Phthalocya

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Particular kinds of TiO_ 2 nanocrystalline electrodes were sensitized by aluminum phthalocyanines modified with sulfonate groups [Al(OH)PcS_ n ]. It was found that in the red region, the electrodes show obvious photoelectrical responses. The surface photovoltage spectra and photocurrent action spectra indicate that in the red region, the monomers of aluminum phthalocyanines have a greater influence on the determination of the photoelectrical response of TiO_ 2 electrodes than the dimers. The dye-sensitized solar cells were obtained by using the aluminum phthalocyanines-sensitized TiO_ 2 electrodes and Pt electrodes, which have an open circuit photovoltage of 360 mV, a short circuit photocurrent of 39.4 μA/cm~ 2 , a fill factor of 0.54 and a maximum power output of 7.65 μW/cm~ 2 under a light intensity of 50 mW/cm~ 2 . The wastes found in the red region, the electrodes show significant photoelectrical responses. The surface photovoltage spectra and photocurrent action spectra indicate that in the red region, the monomers of aluminum phthalocyanines have a greater influence on the determination of the photoelectrical response of TiO 2 electrodes than the dimers. The dye-sensitized solar cells were obtained by using the aluminum phthalocyanines-sensitized TiO 2 electrodes and Pt electrodes, which have an open circuit photovoltage of 360 mV, a short circuit photocurrent of 39.4 μA / cm 2, a fill factor of 0.54 and a maximum power output of 7.65 μW / cm 2 under a light intensity of 50 mW / cm ~ 2.
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