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Poly (3,4-ethylenedioxythiophene) nanowire thin film and synthetic method and application thereof

An ethylenedioxythiophene and nanowire technology, applied in nonlinear optics, optics, instruments, etc., can solve the problems of limited large-scale application, poor plasticity, and monotonous color, and achieve excellent electrochromic performance and product purity. High efficiency and simple preparation method

Active Publication Date: 2016-08-24
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The early research on electrochromic materials mostly focused on inorganic materials, mainly because inorganic electrochromic materials have good long-term use stability, but their material processability is poor, the color is monotonous, the plasticity is not strong, and the coloring efficiency is generally not high. Limits its large-scale application in production and life

Method used

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  • Poly (3,4-ethylenedioxythiophene) nanowire thin film and synthetic method and application thereof

Examples

Experimental program
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Embodiment 1

[0038] (1) Preparation of polymer (PEDOT) nanowire film

[0039] Mix EDOT monomer (0.07109g, 0.5mmol), 1-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide salt (0.0419g, 0.01mol) and dichloromethane (100mL) to prepare 100 mL of a mixed solution with a monomer concentration of 0.005 mol / L and a supporting electrolyte concentration of 0.1 mol / L was used as the electrolyte. The electrolytic cell adopts a three-electrode system, with ITO conductive glass as the working electrode (sonicated in toluene, acetone, and ethanol for 15 minutes), and polished platinum wire as the auxiliary electrode (the length of the platinum wire is 4 cm), and the reference electrode uses a double liquid Junction-type silver / silver chloride electrode (Ag / AgCl, 3mol / L potassium chloride aqueous solution is used as the first junction, and the electrolyte prepared above is used as the second junction). At room temperature (25°C), the polymer film was prepared by cyclic voltammetry anodic oxidat...

Embodiment 2

[0045] (1) Preparation of polymer (PEDOT) nanowire film

[0046] Mix EDOT monomer (0.07109g, 0.5mmol), 1-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide salt (0.0419g, 0.01mol) and dichloromethane (100mL) to prepare 100 mL of a mixed solution with a monomer concentration of 0.005 mol / L and a supporting electrolyte concentration of 0.1 mol / L was used as the electrolyte. The electrolytic cell adopts a three-electrode system, with FTO conductive glass as the working electrode (sonicated in toluene, acetone, and ethanol for 15 minutes in turn), and polished platinum wire as the auxiliary electrode (the length of the platinum wire is 4 cm), and the reference electrode uses a double liquid Junction-type silver / silver chloride electrode (Ag / AgCl, 3mol / L potassium chloride aqueous solution is used as the first junction, and the electrolyte prepared above is used as the second junction). At room temperature (25°C), the polymer film was prepared by cyclic voltammetry anodi...

Embodiment 3

[0048] (1) Preparation of polymer (PEDOT) nanowire film

[0049] Mix EDOT monomer (0.07109g, 0.5mmol), 1-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide salt (0.0419g, 0.01mol) and dichloromethane (100mL) to prepare 100 mL of a mixed solution with a monomer concentration of 0.005 mol / L and a supporting electrolyte concentration of 0.1 mol / L was used as the electrolyte. The electrolytic cell adopts a three-electrode system, using a gold sheet (specification 2X2X0.1mm) as the working electrode (sequentially ultrasonically washed in toluene, acetone, and ethanol for 15 min), and using a polished platinum wire as the auxiliary electrode (the length of the platinum wire is 4 cm). The specific electrode adopts a double junction silver / silver chloride electrode (Ag / AgCl, 3mol / L potassium chloride aqueous solution is used as the first junction, and the electrolyte prepared above is used as the second junction). At room temperature (25°C), the polymer film was prepared by...

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Abstract

The invention provides a poly (3,4-ethylenedioxythiophene) nanowire thin film. The poly (3,4-ethylenedioxythiophene) nanowire thin film is prepared according to the following synthetic method that in a three-electrode electrolytic cell, a mixed solution of 3,4-ethylenedioxythiophene monomer, a supporting electrolyte and an electrolytic solvent serves as an electrolyte solution, a gold electrode, a platinum electrode and an indium tin oxide conductive glass electrode or a fluorine-doping tin oxide conductive glass electrode serves as a working electrode, the gold electrode or the platinum electrode serves as an auxiliary electrode, a silver / silver chloride electrode serves as a reference electrode, polymerization reaction is conducted through a cyclic voltammetry or a potentiostatic method at the room temperature, and thus the poly (3,4-ethylenedioxythiophene) nanowire thin film deposited on the working electrode is obtained, so that a finished product is obtained after post-processing leaching and drying are conducted. According to the poly (3,4-ethylenedioxythiophene) nanowire thin film, the preparation method is simple and convenient, the reaction condition is mild, the product purity is high, and the prepared polymer thin film has an electrochromic performance and can be used as an electrochromic material to be applied to an electrochromic device.

Description

(1) Technical field [0001] The invention relates to a poly(3,4-ethylenedioxythiophene) (PEDOT for short) nanowire film and a synthesis method thereof. The polymer nanowire film synthesized by the method can be applied to electrochromic devices. (2) Background technology [0002] Since scientists such as Shirakawa Hideki discovered that polyacetylene has high conductivity, the field of conductive polymers has attracted widespread interest from scientists. After nearly 20 to 30 years of development, conductive polymers have become a relatively mature interdisciplinary research field. Light weight, good processability, corrosion resistance and electrical conductivity are the characteristics of this class of substances. Among many conductive polymers, poly(3,4-ethylenedioxythiophene) (referred to as PEDOT) has high electrical conductivity (600S / cm), greater stability and higher visible light transmittance and has been favored by many researchers. At present, it has been widely...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B3/00
CPCC25B3/00G02F1/15G02F1/15165
Inventor 张诚刘幼幼吕耀康
Owner ZHEJIANG UNIV OF TECH
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