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Preparation method of high-orientation conductive polymer film, prepared film and application thereof

A conductive polymer and high-orientation technology, which is applied in the manufacture of semiconductor/solid-state devices, circuits, electrical components, etc., can solve problems such as poor solubility, difficulty in preparing oriented films, complicated procedures, etc., and achieve the effect of high degree of orientation

Active Publication Date: 2013-12-18
BEIJING UNIV OF CHEM TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

The procedure for the preparation method of the above-mentioned polymer oriented film is relatively complicated, and each method has its limitations
For example: Although mechanical shearing or rubbing means have a high degree of orientation and anisotropy, it is difficult to prepare a uniform orientation film [W.T.Smith et al., Synth.Metal.84,447-448(1997)]; solution pulling The film prepared by means has a low degree of orientation; the melt stretching method is not suitable for the preparation of polymer films with high melting point, poor solubility and high rigidity

Method used

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  • Preparation method of high-orientation conductive polymer film, prepared film and application thereof
  • Preparation method of high-orientation conductive polymer film, prepared film and application thereof

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preparation example Construction

[0029] The preparation method of the highly oriented conductive polymer film of the present invention is specifically:

[0030] The preparation method of highly oriented polymer film is as figure 2 As shown, it is a melt stretching method, and the specific steps are as follows: pour an appropriate amount of polymer solution on a preheated smooth glass plate (with a heating plate under it) and spread it evenly. After the solvent is completely evaporated, a mechanical roller (such as a motor-driven roller) is used to stick and stretch the polymer supercooled melt film on the glass plate to obtain a highly oriented polymer film. Both the thickness and the degree of orientation of the film depend on the concentration of polymer, the preheating temperature of the glass sheet and the stretching rate of the mechanical rollers. The thickness of the highly oriented polymer film produced by the present invention is preferably between 30-100nm, and the size is: width 5-30cm, length 5-3...

Embodiment 1

[0040] The electrode of electrochemical polymerization uses ITO modified by melt-stretched oriented PVDF film as the working electrode, Ti sheet as the counter electrode, Ag / Ag + The anhydrous electrode is the reference electrode, the solvent is acetonitrile / dichloromethane (1 / 1), and the composition of the electrolyte solution is: 3-methylthiophene (1mg.ml -1 ), phosphorus hexafluoride tetra-n-butylamine (0.1mol.l -1 ). The polymerization process adopts the mode of cyclic voltammetry, the scanning voltage is: -0.2-1.2V, the scanning speed is 40mV / S, and the number of cycles is 50 times. The prepared highly oriented conductive polymer film has a thickness of 700nm and an anisotropy ratio of conductivity of 59.

Embodiment 2

[0042] The electrode of electrochemical polymerization uses ITO modified by melt-stretched oriented PP film as the working electrode, Ti sheet as the counter electrode, Ag / Ag + The anhydrous electrode is the reference electrode, the solvent is acetonitrile / dichloromethane (1 / 1), and the composition of the electrolyte solution is: 3-methylthiophene (1mg.ml -1 ), phosphorus hexafluoride tetra-n-butylamine (0.1mol.l -1 ). The polymerization process adopts the mode of cyclic voltammetry, the scanning voltage is: -0.2-1.2V, the scanning speed is 40mV / S, and the number of cycles is 50 times. The prepared highly oriented conductive polymer film has a thickness of 700nm and an anisotropy ratio of conductivity of 50.

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Abstract

The invention claims a preparation method of a high-orientation conductive polymer film. The method comprises the following steps: preparing a high-orientation polymer film by adopting a melt stretching method, then modifying the electrode for electrochemical polymerization by using the polymer film, and finally electrochemically polymerizing the conductive polymer monomer on the modified electrode to form the high-orientation conductive polymer film. The conductivity of the conductive polymer film is anisotropic, namely showing obviously different conductivity in the polymer orientation film direction vertical or parallel to the modified electrode. The conductive polymer film can be applied to the fields of light emitting diodes, solar batteries and filed effect transistors and the like.

Description

technical field [0001] The invention relates to a method for preparing a film, in particular to a method for preparing a highly oriented conductive polymer film by electrochemical polymerization, the film prepared by the method and its application. Background technique [0002] Electronic devices based on organic polymer semiconductors have attracted widespread attention, such as solar cells, organic field-effect transistors, and light-emitting diodes. Organic polymer semiconductor materials have the following main advantages: the structure of organic semiconductors can be adjusted from the molecular level to improve their properties, low cost, solution processability, light weight and easy large-scale processing and preparation. Due to the low order and amorphous structure of organic polymer semiconductors, there is still a relatively large gap between their conductivity and inorganic semiconductors. In order to prepare high-efficiency electronic devices, people try to use...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D9/02H01L51/00H10K99/00
Inventor 闫寿科任忠杰
Owner BEIJING UNIV OF CHEM TECH
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