Electropolymerization of thiazole derivative bearing thiophene and its application in capacitors and electrochromic devices

Abstract A thiazole derivative bearing thiophene as a monomer compound was synthesized and electropolymerized at carbon, gold, platinum, and fluorine doped tin oxide electrodes. From an in-depth analysis of cyclic voltammograms at several scan rates, deposited polymer layers, comprising thiophene functional groups, were shown to clearly exhibit capacitive behavior. This property is related to anion intercalation into these layers during charging and was demonstrated in this study using electrochemical quartz crystal microbalance experiments. It was also shown that in the case of both tetrafluoroborate and hexafluorophosphate anions, the molar ratio of monomers to anions was approximately 1:0.6, which is estimated as the ratio of anion intercalation into thiophene moiety of the polymer layers. This confirms that the capacitance properties of these deposited polymer layers have high stability against electrochemical perturbation. Furthermore, spectroelectrochemistry data obtained during this study indicate that these layers also have switchable electrochromic properties in the visible range.

• Publication year

  2019

• Venue

  Journal of Electroanalytical Chemistry

• Publication date

  2019-09-01

• Fields of study

  Materials Science, Chemistry, Engineering

• Identifiers
  DOI 10.1016/J.JELECHEM.2019.113329
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

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