Copolymerization of Azobenzene-bearing Monomer and 3,4-Ethylenedioxythiophene (EDOT): Improved Electrochemical Performance for Electrochromic Device Applications

Serife O. Hacioglu

doi:10.1007/s10118-019-2306-0

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Copolymerization of Azobenzene-bearing Monomer and 3,4-Ethylenedioxythiophene (EDOT): Improved Electrochemical Performance for Electrochromic Device Applications

ARTICLE | Updated：2019-09-04

- Copolymerization of Azobenzene-bearing Monomer and 3,4-Ethylenedioxythiophene (EDOT): Improved Electrochemical Performance for Electrochromic Device Applications
- Chinese Journal of Polymer Science Vol. 38, Issue 2, Pages: 109-117(2020)
- Affiliations：
  
  Iskenderun Technical University, Department of Engineering Science, 31200, Hatay, Turkey
- Author bio：
  
  serife.hacioglu@iste.edu.tr
- Funds：
- DOI：10.1007/s10118-019-2306-0
  CLC：
- Received：30 April 2019，
  
  Revised：2019-5-20，
  
  Accepted：25 May 2019，
  
  Online First：04 September 2019，
  
  Published：2020-02
- Accepted：
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Hacioglu, S. O. Copolymerization of azobenzene-bearing monomer and 3,4-ethylenedioxythiophene (EDOT): improved electrochemical performance for electrochromic device applications. Chinese J. Polym. Sci. 2020, 38, 109–117.

Serife O. Hacioglu. Copolymerization of Azobenzene-bearing Monomer and 3,4-Ethylenedioxythiophene (EDOT): Improved Electrochemical Performance for Electrochromic Device Applications[J]. Chinese Journal of Polymer Science, 2020, 38(2): 109-117.
Hacioglu, S. O. Copolymerization of azobenzene-bearing monomer and 3,4-ethylenedioxythiophene (EDOT): improved electrochemical performance for electrochromic device applications. Chinese J. Polym. Sci. 2020, 38, 109–117. DOI： 10.1007/s10118-019-2306-0.

Serife O. Hacioglu. Copolymerization of Azobenzene-bearing Monomer and 3,4-Ethylenedioxythiophene (EDOT): Improved Electrochemical Performance for Electrochromic Device Applications[J]. Chinese Journal of Polymer Science, 2020, 38(2): 109-117. DOI： 10.1007/s10118-019-2306-0.

摘要

Abstract

In this study

novel electrochromic copolymers of 3

4-ethylenedioxythiophene (EDOT) and (

)-1

2-bis(2-fluoro-4-(4-hexylthiophen-2-yl)phenyl)diazene (M1) with different monomer feed ratios were designed and synthesized electrochemically. Electrochemical and spectroelectrochemical characterizations were performed using voltammetry and UV-Vis-NIR spectrophotometry techniques to test the applicability of copolymers for electrochromic applications. In terms of electrochemical behaviors

addition of an electron-rich EDOT unit into the azobenzene-containing copolymer increased the electron density on the polymer chain and afforded copolymers with very low oxidation potentials at around 0.30 V. While the homopolymers (P1 and PEDOT) exhibited neutral state absorptions centered at 510 and 583 nm

EDOT-bearing copolymers showed red shifted absorptions compared to those of P1 with narrower optical band gaps. In addition

the poor optical contrast and switching times of azobenzene-bearing homopolymer were significantly improved with EDOT addition into the copolymer chain. As a result of the promising electrochromic and kinetic preperties

CoP1.5-bearing single layer electrochromic device that works between purple and light greenish blue colors was constructed and characterized.

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Keywords

references

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