Electrochromic properties of tetrabutylammonium perchlorate-doped polypyrrole/ nanocellulose composite films

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dc.authoridSabriye, Percin Ozkorucuklu/0000-0001-9778-2034;
dc.contributor.authorJusufovic, Sabina
dc.contributor.authorBastemur, Gizem Yildirim
dc.contributor.authorEvecan, Dilek
dc.contributor.authorOzkorucuklu, Sabriye Percin
dc.contributor.authorZayim, Esra
dc.contributor.authorKalyon, Goksenin
dc.contributor.authorCandan, Zeki
dc.date.accessioned2025-10-11T20:48:26Z
dc.date.available2025-10-11T20:48:26Z
dc.date.issued2025
dc.departmentDüzce Üniversitesien_US
dc.description.abstractThis study investigates electrochromic properties of tetrabutylammonium perchlorate (TBAP)-doped polypyrrole (PPy) and PPy/Nanocellulose (NC) composite films, where TBAP-doped PPy/NC composites were synthesized with various NC content ranging from 0 % to 100 % by volume in 0.1 M pyrrole solution and deposited on fluorine-doped tin oxide (FTO) glass using potentiostatic polymerization. The optimum polymerization time for depositing a uniform, adhesive and stable films on FTO with higher optical contrast between bleached and colored states are found to be 10 s at a constant voltage of 1.2 V. To compare the electrochromic properties of NC-free and NC-containing TBAP-doped PPy films, cyclic voltammetry (CV), chronoamperometry (CA), and optical transmittance spectroscopy were carried out in 0.1 M TBAP electrolyte. A reversible color change from yellow at - 0.6 V (bleached state) to blue gray at + 0.6 V (colored state) is observed for %40 NC-containing TBAP-doped PPy composite film. CV measurements at the potential between - 0.8 V and + 0.8 V show an increase at the oxidation and reduction peak currents up to 60 % NC in TBAP-doped PPy, but the highest optical contrast and uniformity is observed for 40 % NC-containing composite film. And scanning electron microscopy images reveal that surface morphology changes and cluster/agglomerations on the surface of the films are formed when the %NC value exceeds 60 %. Of the NC-containing composite films, the 40 % NC-containing TBAPdoped PPy composite film exhibits the best adhesion to FTO substrate. Furthermore, the highest optical contrast (25.9 % at 700 nm) is observed for %40 NC-containing TBAP-doped PPy when compared to NC-free TBAP-doped PPy film (18.7 % at 700 nm). Therefore, PPy/NC composite with 40 % volume ratio of NC in PPy was selected for further CV and CA experiments. Compared to NC-free films, 40 % NC-containing TBAP-doped PPy exhibits faster switching time (1.16 s), higher optical contrast (25.9 % at 700 nm), higher coloration efficiency (65.6 cm2/C), and better uniformity on FTO. Our results may lead to the design of a high-performance electrochromic devices using NC-Conductive Polymers, with electrochromic and mechanical properties that can be adjusted through NC composition, especially to create flexible composites with enhanced mechanical strength.en_US
dc.description.sponsorshipScientific Research Projects Coordination Unit of Istanbul University [34216]en_US
dc.description.sponsorshipThis work is supported by Scientific Research Projects Coordination Unit of Istanbul University (Project Number 34216) .en_US
dc.identifier.doi10.1016/j.tsf.2025.140606
dc.identifier.issn0040-6090
dc.identifier.issn1879-2731
dc.identifier.scopus2-s2.0-85215417416en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.urihttps://doi.org/10.1016/j.tsf.2025.140606
dc.identifier.urihttps://hdl.handle.net/20.500.12684/21921
dc.identifier.volume811en_US
dc.identifier.wosWOS:001406418200001en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Science Saen_US
dc.relation.ispartofThin Solid Filmsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.snmzKA_WOS_20250911
dc.subjectPolypyrroleen_US
dc.subjectPPyen_US
dc.subjectCelluloseen_US
dc.subjectNanocelluloseen_US
dc.subjectElectropolymerizationen_US
dc.subjectConductive polymersen_US
dc.subjectElectrochromicen_US
dc.subjectElectrochromismen_US
dc.titleElectrochromic properties of tetrabutylammonium perchlorate-doped polypyrrole/ nanocellulose composite filmsen_US
dc.typeArticleen_US

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