A chemical sensor was prepared by deposition of polypyrrole films by
chemical polymerization of pyrrole at room temperature, using hexahydrate
ferric chloride as oxidant, on a ceramic substrate placed on the bottom of the
beaker (in-situ polymeriz
ation). On the substrate two interdigitated metallic
electrodes were priory deposited by screen printing, to reduce film resistance.
These films were characterized by different methods namely FTIR, UV-Vis,
XRD.
