Preparation method of a highly flexible metal nanowire transparent conductive composite film

Abstract

The invention discloses a highly flexible metal nanowire transparent conductive composite film and a preparation method thereof, comprising a flexible substrate and a conductive layer, characterized in that the flexible substrate is a transparent mixed cellulose ester microporous filter membrane, and the The conductive layer includes a metal nanowire film, a polymethyl methacrylate film and a poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonic acid) film. The present invention uses a transparent mixed cellulose ester microporous filter membrane as a substrate, so that the substrate has high flexibility; by using metal nanowires as the main conductive layer, the problem of expensive transparent conductive films in traditional optoelectronic devices is solved; through The preparation process of directly suctioning and depositing metal nanowire films on flexible substrates can effectively reduce the production cost of transparent conductive films; by preparing polymethyl methacrylate films and poly(3,4 ‑ethylenedioxythiophene)‑poly(styrenesulfonic acid) film to enhance the optoelectronic performance of the composite film. The metal nanowire transparent conductive composite film can be widely used in healthy and environment-friendly flexible optoelectronic devices.

Description

Technical field [0001] The invention relates to the field of organic optoelectronics, in particular to a method for preparing a highly flexible metal nanowire transparent conductive composite film. Background technique [0002] Among transparent conductive films, indium tin oxide (ITO) films prepared by magnetron sputtering process are most commonly used. However, ITO thin films also have some obvious shortcomings: (1) Indium as raw material is scarce, and the price is becoming more expensive, so substitutes are urgently needed; (2) Sputtering is used to prepare ITO thin films, which requires high temperature, which limits the choice of device substrates; (3) ITO thin films Fragile and poor mechanical stability; (4) The work function of the ITO film is low, which cannot meet the higher requirements of the transparent conductive film made by the rapidly changing optoelectronic devices in different fields. Looking for new high-performance transparent conductive film is an importan...

AI Technical Summary

Problems solved by technology

[0006] In view of the deficiencies in the technical background, the present invention proposes a method for preparing a highly flexible metal nanowire transparent conductive composite film, which solves the problems of complex preparation process of flexible substrates and insufficient adhesion between the metal nanowire film and the modification layer in the past

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