A new multi-electrochromic 2,7 linked polycarbazole derivative: Effect of the nitro subunit

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dc.authoridKoyuncu, Sermet/0000-0001-8352-8326
dc.contributor.authorKoyuncu, Fatma Baycan
dc.contributor.authorKoyuncu, Sermet
dc.contributor.authorOzdemir, Eyup
dc.date.accessioned2025-01-27T20:43:41Z
dc.date.available2025-01-27T20:43:41Z
dc.date.issued2011
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractA new poly-2,7-di-2-thienyl-9H-carbazole derivative (poly(TCT-N)) bearing nitro (-NO2) subunit has been reported. The electrochemical and optical properties of TCT-N monomer and its polymer have been compared to the 9-phenyl-2,7-di-2-thienyl-9H-carbazole (TCT) standard molecule. Cyclic voltammetry revealed that TCT-N and TCT have excellent polymerization activity; due to extended conjugation with the attached thiophene unit and also their low oxidation potentials. The oxidation potential of TCT-N is higher than that of TCT, because of electro-withdrawing effect of -NO2 moiety. Besides, the TCT-N polymeric film prepared via electrochemical process exhibits a multi-electrochromic behavior compared with TCT standard molecule. The electroactive orange color of poly-TCT-N film converted respectively to green, turquoise and dark blue upon applied positive potentials. Consequently, the polymeric electrochrome exhibits multi-electrochromic behavior, high redox stability, high coloration efficiency and reasonable response time for electrochromic applications. (C) 2011 Elsevier B.V. All rights reserved.
dc.description.sponsorshipCanakkale Onsekiz Mart University Grants Commission [2009/17]; Scientific and Technical Research Council of Turkey (TUBITAK) [109T516]
dc.description.sponsorshipWe gratefully acknowledge the supports from Canakkale Onsekiz Mart University Grants Commission (Project Number: 2009/17) and also grateful to Scientific and Technical Research Council of Turkey (TUBITAK, project #: 109T516) for financial support.
dc.identifier.doi10.1016/j.orgel.2011.06.023
dc.identifier.endpage1710
dc.identifier.issn1566-1199
dc.identifier.issn1878-5530
dc.identifier.issue10
dc.identifier.startpage1701
dc.identifier.urihttps://doi.org/10.1016/j.orgel.2011.06.023
dc.identifier.urihttps://hdl.handle.net/20.500.12428/24332
dc.identifier.volume12
dc.identifier.wosWOS:000293591500017
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofOrganic Electronics
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectPoly-2,7-carbazoles
dc.subjectElectrochemical polymerization
dc.subjectElectrochromic polymers
dc.titleA new multi-electrochromic 2,7 linked polycarbazole derivative: Effect of the nitro subunit
dc.typeArticle

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