Abstract: Electromagnetic waves are everywhere because of the rapid development of electronic technology. Electromagnetic wave brings great conve-nience to human beings, but also causes increasingly serious electromagnetic pollution problems. In recent years, researchers have been working on electromagnetic waves absorbing materials. Conductive polymer-based electromagnetic wave-absorbing materials have attracted wide attention due to their simple synthesis, light weight and low cost. Currently, conductive polymers such as polyaniline and polypyrrole are widely used in the field of electromagnetic wave absorbing. However, the electromagnetic wave absorbing materials based on these did not achieve the ideal absorbing effect, and the effective absorption bandwidth (reflection loss ≤10 dB) is also relatively narrow. Therefore, people began to explore the doping of conductive polymer or composite with other materials to improve its absorption performance so as to obtain a better absorption effect. Compared with other conductive polymers, polythiophene and PEDOT have better conductivity, excellent environmental stability, easy doping, good compatibility and adhesion with other materials. It's generally used in sensor and electroluminescence fields. Although the research on polythiophene and PEDOT in the field of wave absorption has just started in recent years, it cannot be denied that composite absorbing materials based on polythiophene or PEDOT have good absorbing ability. The microwave absorbing properties of the single polythiophene or PEDOT are not outstanding, so the recent study mainly focused on the preparation of microwave absorbing materials by compounding with other materials, such as polythiophene and inorganic particles, PEDOT and magnetic particles, organic compounds or graphene, which have obtained better microwave absorbing effects. In this paper, the mechanism of absorbing materials is described in brief. The characteristics of polythiophene and PEDOT are emphatically introduced. The research status of absorbing materials based on polythiophene or PEDOT in recent years is summarized. The advantages and disadvantages are analyzed, the future development trend is predicted.
刘凡, 赵晓明. 聚噻吩及其衍生物PEDOT在吸波领域的应用现状[J]. 材料导报, 2020, 34(Z1): 507-510.
LIU Fan, ZHAO Xiaoming. Application Status of Polythiophene and Its Derivative PEDOT in WaveAbsorption Field. Materials Reports, 2020, 34(Z1): 507-510.
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2020, Vol. 34 
