ELECTROCHEMISTRY AS AN ALTERNATIVE FOR THE OBTAINING OF CONDUCTIVE POLYMER NANOTHREADS.

Abstract

Electrochemical techniques such as cyclic voltammetry and potential step (fixed potential) have allowed obtaining conductive polymers with controlled morphology, which have been evaluated in potential uses for the manufacturing of supercapacitors, organic light-emitting diodes, solar cells, electrochemical sensors, among others, getting good results. It is intended to improve properties of polymer films and miniaturize components of devices where applicable, and to do so, obtaining of materials with nanometric scale is the option. The use of electrochemical technologies has also facilitated the obtaining of porous silicon oxide films (Template) which deposit on an electrode surface, in this case, platinum, which pores have been subject to electrooxidation of 3,4- ethylenedioxythiophene monomer (EDOT), obtaining the polymer Poly(3,4ethylenedioxythiophene) (PEDOT) with nanometric dimensions, inside the spaces confined by the Template. Electrochemical responses of materials obtained in both surfaces were compared (Unmodified platinum electrodes and those Template-modified) finding an increase in current in those obtained on the Template, which in also, additionally to the calculations, stored higher amount of charge, which is attributed to the formation of nanostructures, verified through TEM images, being specifically PEDOT nanothreads, with diameters varying from 6nm to 14nm, which may improve applications in sensors and supercapacitors due to their characteristics.