Author/Authors :
Zhang، نويسنده , , J. and Wang، نويسنده , , D.J. and Chai، نويسنده , , X.D. and Li، نويسنده , , T.J. and Mao، نويسنده , , H.F. and Tian، نويسنده , , H.J. and Zhou، نويسنده , , Q.F. and Xu، نويسنده , , H.J.، نويسنده ,
Abstract :
Anionic phthalocyanine sodium hydrogallium 4,4′,4″,4‴-tetrasulfonated phthalocyanine(GaTsPc) was used to modify the surface of a size-quantized particulate TiO2 photoelectrode fabricated by electrostatic attraction. The photovoltaic features and interfacial electron transfer of the electrodes were studied by a photoelectrochemical method and surface photovoltage spectroscopy. The results indicate that the light absorption of phthalocyanine monomer makes more contribution to the photovoltaic response in the TiO2/GaTsPc composite electrode in spite of obvious aggregation occurring in composite electrode.
Keywords :
organic semiconductors based on conjugated molecules , Semiconductor/semiconductor interface , solar cell , self-assembly using surface chemistry
