EMPLOYMENT OF PHTHALOCYANINE LB FILMS IN PIEZOELECTRIC CHEMICAL SENSORS

摘要

Three differently metallated phthalocyanines bearing the same peripheral substituents have been deposited by the Langmuir-Blodgett technique directly onto the quartz crystals of a piezoelectric apparatus and used as the active layers for the detection of different alcohols. The subsequent statistical analysis reveals that in the sensing performances the thickness of the multilayer is a more important parameter than the nature of the central metal atoms in the macrocycles.