Electrochromic supercapacitor electrodes based on viologen-derived cross-linked thin films

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dc.authoridKoyuncu, Sermet / 0000-0001-8352-8326
dc.authoridAltınışık, Sinem / 0000-0003-0238-0169
dc.contributor.authorUluçay, Sude
dc.contributor.authorHa, Neul Gyum
dc.contributor.authorKortun, Arzu
dc.contributor.authorAltınışık, Sinem
dc.contributor.authorPiravadili Selin
dc.contributor.authorKwon, Jin Han
dc.contributor.authorMoon, Hong Chul
dc.contributor.authorKoyuncu, Sermet
dc.date.accessioned2025-05-29T02:54:04Z
dc.date.available2025-05-29T02:54:04Z
dc.date.issued2025
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractViologens are an important class of materials in organic electrochromic technology due to their n-type semiconductor properties and the high color intensity in their radical cation state. Due to their charged structures, viologens are generally ideal molecules for gel-based organic electrochromic devices, but with specific modifications, they can also be employed in thin-film-based electrochromic devices (ECDs). In this study, crosslinking reactions of viologen-based molecules (ALV-X) with various allyl group-containing counterions were conducted on ITO/Glass surfaces in the presence of a tetra-thiol-based crosslinker. The surface roughness of the resulting films varied from 4.64 nm to 8.46 nm depending on the counterion exchange. Electrochemical characterizations of the prepared viologen-based crosslinked electrodes indicated that the LUMO energy levels ranged between −4.267 eV and −4.297 eV. Viologen-based cross-linked thin films with transmittance changes close to 30 % in the visible region, 50 % in the UV region and 20 % in the NIR region with specific capacitances of 0.25 mF cm−2 have been found to be highly suitable materials, especially as cathodic layers in electrochromic/supercapacitor devices. © 2025 Elsevier B.V.
dc.description.sponsorshipNational Research Foundation of Korea, NRF
dc.description.sponsorshipTürkiye Bilimsel ve Teknolojik Araştırma Kurumu, TUBITAK, (NRF-2022K2A9A1A06093487, FY2022, 122N879)
dc.description.sponsorshipTürkiye Bilimsel ve Teknolojik Araştırma Kurumu, TUBITAK
dc.identifier.doi10.1016/j.orgel.2025.107273
dc.identifier.issn1566-1199
dc.identifier.scopus2-s2.0-105005118087
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.orgel.2025.107273
dc.identifier.urihttps://hdl.handle.net/20.500.12428/29913
dc.identifier.volume144
dc.identifier.wosWOS:001497035400001
dc.identifier.wosqualityN/A
dc.indekslendigikaynakScopus
dc.indekslendigikaynakWeb of Science
dc.language.isoen
dc.publisherElsevier B.V.
dc.relation.ispartofOrganic Electronics
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_Scopus_20250529
dc.subjectCrosslinked films
dc.subjectElectrochromic supercapacitor (ECSC)
dc.subjectThiol-ene click reaction
dc.subjectViologen
dc.titleElectrochromic supercapacitor electrodes based on viologen-derived cross-linked thin films
dc.typeArticle

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