Poly-3,4-ethylenedioxythiophene nano mesh structure film as well as preparation method and application thereof

Abstract

The invention discloses a poly-3,4-ethylenedioxythiophene nano mesh structure film as well as a preparation method and an application thereof. The poly-3,4-ethylenedioxythiophene is of a nano mesh structure. The poly-3,4-ethylenedioxythiophene film is specifically prepared by the following steps: by taking 3,4-ethylenedioxythiophene as a monomer in a three-electrode cell system, taking lithium perchlorate as supporting electrolyte, and taking acetonitrile as an electrolytic solvent, uniformly mixing to obtain electrolyte; and by taking an indium tin oxide conductive glass electrode as a working electrode, taking a platinum electrode as an auxiliary electrode, and taking a silver / silver chloride electrode as a reference electrode, carrying out an electrochemical polymerization reaction at aroom temperature by adopting cyclic voltammetry or a potentiostatic method, thereby obtaining a polymer film deposited on the working electrode, eluting, and drying, thereby obtaining the poly-3,4-ethylenedioxythiophene. The conductive polymer film prepared by the method disclosed by the invention has a special nano mesh structure. Compared with an ordinary plane structure, the conductive polymerfilm has excellent electrochromic property.

Description

technical field [0001] The invention relates to a poly-3,4-ethylenedioxythiophene nano-network structure film, a preparation method and application thereof. Background technique [0002] Conjugated polymers have excellent electrical conductivity and have great application prospects in fields such as field effect transistors, light-emitting diodes, solar cells, and electrochromism. Electrochemical polymerization of corresponding redox-active monomers is an effective method for preparing polymer materials. Polyaniline, polypyrrole, polythiophene and their derivatives obtained by electrochemical polymerization have been widely used in electronic equipment and mechanical brakes. Poly 3,4-ethylenedioxythiophene (PEDOT) is a typical p-type conjugated conductive polymer, which has been widely studied in many fields, such as antistatic, anticorrosion materials, supercapacitors, batteries, electrochromic displays, biological sensors etc. [0003] In recent years, some nanostructur...

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Problems solved by technology

Methods such as hard template, soft template and molecular template method are the main methods to prepare such materials. In addition, the electrochemical method without template can also obtain the polyaniline and polythiophene nanowire structure with orientation, although based on these Functional devices of nanostructured conductive polymer materials have been reported in the literature, but it is still difficult to prepare a series of high-quality nanostructured polymer materials that can be applied to electronic devices and sensors through simple template-free methods.

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