title: Direct writing of conducting polymers.
abstract: Described herein is a new printing method-direct writing of conducting polymers (CPs)-based on pipette-tip localized continuous electrochemical growth. A single barrel micropipette containing a metal wire (Pt) is filled with a mixture of monomer, supporting electrolyte, and an appropriate solvent. A droplet at the tip of the pipette contacts the substrate, which becomes the working electrode of a micro-electrochemical cell confined to the tip droplet and the pipette. The metallic wire in the pipette acts as both counter and reference electrode. Electropolymerization forms the CP on the working electrode in a pattern controlled by the movement of the pipette. In this study, various width poly(pyrrole) 2D and 3D structures are extruded and characterized in terms of microcyclic voltammetry, Raman spectroscopy, and scanning electron microscopy.
authors.affiliation: Polymer Electronics Research Centre, School of Chemical Sciences, University of Auckland, 23 Symonds St., Auckland 1010, New Zealand.
authors.forename: Nihan
authors.initials: N
authors.lastname: Aydemir
authors.forename: James
authors.initials: J
authors.lastname: Parcell
authors.forename: Cosmin
authors.initials: C
authors.lastname: Laslau
authors.forename: Michel
authors.initials: M
authors.lastname: Nieuwoudt
authors.forename: David E
authors.initials: DE
authors.lastname: Williams
authors.forename: Jadranka
authors.initials: J
authors.lastname: Travas-Sejdic
mesh_terms: D004566:Electrodes; D008855:Microscopy, Electron, Scanning; D010984:Platinum / Q000737:chemistry; D011108:Polymers / Q000737:chemistry*; D011758:Pyrroles / Q000737:chemistry
chemical_list: D011108:Polymers; D011758:Pyrroles; C067635:polypyrrole; D010984:Platinum
keywords: conducting polymers; micro patterning; poly(pyrrole); scanning ion conductance microscopy