Abstract
In the present study, we have dispersed copper phthalocyanine, nickel phthalocyanine and aluminium phthalocyanine hydroxide in sol-gel glasses. These have been exposed to methanol, benzene, diethylamine and bromine vapours. Interaction mechanism of phthalocyanines with these vapours has been studied by electrical and spectroscopic techniques. The variations in the sensitivities of these MPcs dispersed glasses have been explained on the basis of primary and secondary charge transfer mechanisms between the adsorbed chemical vapours and MPcs. The structural and optical behaviors of these dispersed glasses have been analyzed using X-ray diffraction; UV–vis, Fourier transform infrared spectroscopy and field-emission scanning electron microscopy analysis.
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