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Polymerization of Solid-State 2,2 '-Bithiophene Thin Film or Doped in Cellulose Paper Using DBD Plasma and Its Applications in Paper-Based Electronics
Journal article   Peer reviewed

Polymerization of Solid-State 2,2 '-Bithiophene Thin Film or Doped in Cellulose Paper Using DBD Plasma and Its Applications in Paper-Based Electronics

Ketao Chen, Meijuan Cao, Zhen Quo, Lin He, Yen Wei and Hai-Feng Ji
ACS applied polymer materials, v 2(4), pp 1518-1527
01 Apr 2020

Abstract

Materials Science Materials Science, Multidisciplinary Physical Sciences Polymer Science Science & Technology Technology
We present a method to prepare a conductive paper hybrid based on the polymerization of bithiophene monomer directly from the solid state of 2,2'-bithiophene inside a sheet of standard letter paper using atmospheric plasma since both the monomers and some plasma species, such as radicals, can penetrate into the paper. Polymerization of a 2,2'-bithiophene in its solid form using plasma offers a simple and straightforward way to synthesize a conductive polymer. To understand the polymerization reaction in atmospheric plasma, the formation of polythiophene on substrates and the reaction mechanism were investigated with Fourier-transform infrared spectroscopy (FTIR) and ultraviolet-visible (UV-vis) spectroscopy. The kinetics of the polymerization reaction was investigated by using UV-vis, and the rate of polymerization was found to be the second-order reaction. The resulting polymer film exhibited a conductivity of 6.67 S/cm when I-2 was doped in the film. The polymerization 3,3'-dibromo-2,2'-bithiophene to poly(3,3'-dibromo-2,2'-bithiophene) was also studied for comparison. The described process provides a universal yet effective method of preparing conductive polythiophene films and polythiophene inside a sheet of paper. Three devices based on the synthesized conductive paper were also presented in this work.

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Domestic collaboration
International collaboration
Web of Science research areas
Materials Science, Multidisciplinary
Polymer Science
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