A kind of pedot film with high film thickness and high conductivity and preparation method thereof

A high-conductivity, thin-film technology, used in equipment for manufacturing conductive/semiconductive layers, cable/conductor manufacturing, circuits, etc., can solve the problems of accelerated reaction speed, low solubility, pollution, etc. The effect of simplifying the process and reducing the cost
CN106297968BActive Publication Date: 2018-01-09SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
Publication Date
2018-01-09

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Abstract

The invention relates to a high-thickness and high-conductivity PEDOT film and a preparation method thereof. The PEDOT film containing PEDOT:X is prepared from an EDOT monomer as a raw material and a weak basic anion-containing high-alcohol-solubility ferric salt FeX<3> as an oxidizing agent by adopting a gas phase method or a solution method, wherein X is high-alcohol-solubility weak basic anions, preferably, at least one of camphosulfonate ions, long-chain alkylbenzene sulfonate ions, alkyl naphthalene sulfonate ions, dialkyl naphthalene sulfonate ions and dinonyl naphthalene disulfonate ions. According to the film and the preparation method thereof, by utilizing high alcohol solubility of a ferric salt oxidizing agent solution of a precursor, the concentration and viscosity of a spin-coating solution are improved, the crystallization of the oxidizing agent in a reaction process is inhibited, and copolymer anti-crystallization inhibitors (pyridine, PEPG and the like) do not need to be added, so that a high-thickness PEDOT film is obtained.
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Description

technical field

[0001] The invention belongs to the field of energy materials, and specifically relates to a PEDOT film with high film thickness and high conductivity and a preparation method thereof. The product has high film thickness and high conductivity, optimizes the traditional process, and better meets the application requirements. Background technique

[0002] Conductive polymer materials have better ductility, processability and lower cost than traditional inorganic bulk materials. Poly-3,4-ethylenedioxythiophene (PEDOT) is currently the most excellent conductive polymer thermoelectric material. , PSS-doped PEDOT is most commonly used due to its high conductivity and commercial production. The highest ZT value of the PEDOT film prepared by Kim et al. reached 0.42 (Nat Mater, 2013, 12, 719). In addition, the small molecule doped PEDOT prepared by solution method, gas phase method and electrochemical polymerization, such as PEDOT:Tos, has a more compact and regular s...

Claims

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