Tetra-Carbazole based electroactive donor-acceptor dyes: Effect of the phenyl bridging unit on the electrochromic performance

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dc.authoridAltinisik, Sinem/0000-0003-0238-0169
dc.authoridDoyranli, Ceylan/0000-0002-8635-4795
dc.authoridKoyuncu, Sermet/0000-0001-8352-8326
dc.authoridOzdemir, Mucahit/0000-0002-0840-4953
dc.contributor.authorDoyranli, Ceylan
dc.contributor.authorAltinisik, Sinem
dc.contributor.authorOzdemir, Mucahit
dc.contributor.authorKoyuncu, Sermet
dc.date.accessioned2025-01-27T20:31:24Z
dc.date.available2025-01-27T20:31:24Z
dc.date.issued2022
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractIn this study, a new Donor-Acceptor-Donor (D-A-D) electroactive molecules (HCQM1 and HCQM2) containing 9H-carbazole and 9-phenyl-9H-carbazole as donor along with quinoxaline (HQ) as acceptor were synthesized and then coated on Indium Tin Oxide/Glass (ITO/Glass) surface by the electrochemical oxidation process. The HOMO-LUMO band gap values obtained by electrochemical oxidation and reduction onsets were calculated as 2.64 and 2.68 eV, respectively. On the other hand, UV-Vis absorption measurements showed that the charge transfer band of HCQM1 was detected at 500 nm with 50 nm red shift upon compared with the HCQM2. According to AFM results, it is seen that the roughness of the poly(HCQM2) film is higher than the poly(HCQM1) film. Finally, the polymer film of HCQM2 showed multi-electrochromic color change (yellow, green, and dark blue) upon the oxidation process. When the electrochromic performance of the HCQM1 and HCQM2 polymer films was compared, it was discovered that the HCQM2 with phenylene spacer unit has better stability and a higher percentage transmittance change (& UDelta;T%) between neutral and oxidized states.
dc.identifier.doi10.1016/j.dyepig.2022.110467
dc.identifier.issn0143-7208
dc.identifier.issn1873-3743
dc.identifier.scopus2-s2.0-85131737597
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.dyepig.2022.110467
dc.identifier.urihttps://hdl.handle.net/20.500.12428/23132
dc.identifier.volume204
dc.identifier.wosWOS:000817724300002
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Sci Ltd
dc.relation.ispartofDyes and Pigments
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectDonor-acceptor dyes
dc.subjectCarbazole
dc.subjectQuinoxaline
dc.subjectElectrochromic materials
dc.titleTetra-Carbazole based electroactive donor-acceptor dyes: Effect of the phenyl bridging unit on the electrochromic performance
dc.typeArticle

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