Electropolymerized Multilayer Conducting Polymers with Response to Gaseous Hydrogen Chloride

Summary: A step‐by‐step ‘all‐electrochemical’ approach has been presented to develop a multilayer structure of conducting polymers for gas sensors. The integrated structure includes a sensitive layer (polyaniline, PANI) and a conductive bridge consisting of poly(3,4‐ethylenedioxythiophene) (PEDOT). Good sensitivity, stability, and response of the multilayer material to gaseous HCl indicate a possible application of conductive polymers to provide a binding of sensitive elements in sensors or other fields. The conducting multilayer material, Au/pATP/PANI/PEDOT, was synthesized electrochemically. magnified image The conducting multilayer material, Au/pATP/PANI/PEDOT, was synthesized electrochemically.