ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 37, Number 4
JKCSEZ 37(4)
August 20, 1993 

As a result of adsorbing phthalocyanine (metal free, α and β-Cu) on zinc oxide in aqueous solution using nonionic surfactant, all of the added dye was adsorbed and Na salt of sulfonated phthalocyanine showed the Langmuir monolayer adsorption. To analyze the effect of adsorption on zinc oxide, photovoltage was measured using surface photovoltmeter. The high photovoltaic effect was observed at intrinsic wavelength of zinc oxide and wavelength of adsorbed phthalocyanine dye. Metal free phthalocyanine, α-copper phthalocyanine and β-copper phthalocyanine showed the highest photovoltaic effect when the percentage of coverage (ΘBET) for zinc oxide is about 80, while sulfonated phthalocyanine showed the highest photovoltaic effect when the percentage of coverage for zinc oxide is about 30.