Author/Authors :
Armand، نويسنده , , F. and Ferez، نويسنده , , H. and Fouriaux، نويسنده , , S. and Araspin، نويسنده , , O. and Pradeau، نويسنده , , J.-P. and Claessens، نويسنده , , C.G. and Maya، نويسنده , , E.M. and Vazquez، نويسنده , , P. and Torres، نويسنده , , T.، نويسنده ,
Abstract :
Symmetrically substituted tetraamidometallo-phthalocyanines (MPc) have been deposited as Langmuir-Blodgett (LB) films onto glass substrates bearing gold interdigitated electrode patterns. CoPc, CuPc, NiPc, and ZnPc LB films were shown to possess a very high sensitivity (ΔR/R ≥ 50% at room temperature) when exposed to ppm levels of nitrogen dioxide (NO2). Moreover, it has been demonstrated that the gas-sensing properties of the MPc LB films depend primarily on the nature of the central metal, and secondarily on the orientation of the macrocycle within the LB film.
Keywords :
Nitrogen Dioxide Detection , Film morphology , Gas sensors , Langmuir-Blodgett films , Substituted phthalocyanines
