Turkish Journal of Chemistry
Abstract
In this study, a thiophene-carbazole-based conjugated organic polymer was successfully synthesized on indium tin oxide (ITO)/glass and graphite sheet substrates using in situ oxidative polymerization. In terms of electrochromic properties, the electrodes exhibited significant color change from light yellow-green to dark gray in the potential range of 0 V to 1.2 V, with optical contrast ranging from 84.2% to 47.2% and coloring efficiency of 171.3 cm2/C. The prepared PCBP-Th_ITO/glass electrode also exhibited fast switching times (tb = 0.89 s and tc = 2.05 s) at 650 nm. Furthermore, 90% optical stability was maintained after 1000 cycles. In terms of energy storage performance, the PCBP-Th_graphite sheet electrode achieved specific areal capacitance of 434.2 mF/cm2 in 1 M H2SO4 electrolyte at a current density of 3 mA/cm2. The findings indicate that this multifunctional polymer structure is a strategic candidate for high-performance electrochromic windows and supercapacitor applications.
Author ORCID Identifier
SİNEM ALTINIŞIK: 0000-0003-0238-0169
DOI
10.55730/1300-0527.3914
Keywords
Thiophene, carbazole, electropolymerization, covalent organic polymer, electrochromic, supercapacitor
First Page
491
Last Page
502
Publisher
The Scientific and Technological Research Council of Türkiye (TÜBİTAK)
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.
Recommended Citation
ALTINIŞIK, S (2026). Thiophene-carbazole-based covalent organic polymer electrodes for electrochromic and supercapacitor applications. Turkish Journal of Chemistry 50 (5): 491-502. https://doi.org/10.55730/1300-0527.3914
