GAS SENSITIVITY OF PHTHALOCYANINE THIN-FILMS

Thin films of copper phthalocyanine (CuPc) and poly(phthalocyanine of aluminium and fluor) (AlPcF)n were exposed to concentration steps of the diluted oxidizing gases O2, NO2 and Cl2, and their conductivity variations were recorded at the same time. These are in good agreement with the model we recently proposed to describe gas-phthalocyanine interactions, leading to the law: (conductivity)is-proportional-to (gas concentration), which is often experimentally observed. The sensitivities s of the two phthalocyanines to O2 and NO2 are calculated at various temperatures.