Electrochromic and electroluminescent devices based on a novel branched quasi-dendric fluorene-carbazole-2,5-bis(2-thienyl)-1H-pyrrole system

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dc.authoridICLI, SIDDIK/0000-0001-8260-5975
dc.authoridKoyuncu, Sermet/0000-0001-8352-8326
dc.authoridSariciftci, Niyazi Serdar/0000-0003-4727-1193
dc.contributor.authorKoyuncu, Sermet
dc.contributor.authorUsluer, Ozlem
dc.contributor.authorCan, Mustafa
dc.contributor.authorDemic, Serafettin
dc.contributor.authorIcli, Siddik
dc.contributor.authorSariciftci, Niyazi Serdar
dc.date.accessioned2025-01-27T20:59:43Z
dc.date.available2025-01-27T20:59:43Z
dc.date.issued2011
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractWe report here the synthesis of a novel branched quasi-dendric system, 9,9'-(9,9'-dihexylfluorene-2,7-diyl)bis[3,6-bis(2,5-bis(2-thienyl) pyrrol-1-yl)carbazole], (FCSNS), in four steps, followed by coating onto an ITO-coated glass surface by an electropolymerization process to give a very stable cross-linked polymeric film (poly-FCSNS). The yellowish-green color of this film in its neutral state changed reversibly to black upon oxidation. An electrochromic device, assembled in the sandwich configuration [ITO/anodically coloring polymer (poly-FCSNS)//gel electrolyte//cathodically coloring polymer/(PEDOT)/ITO], exhibited a relatively short response time (about 1 s), a high redox stability, and a high coloration efficiency (1624 cm(2) C-1). In addition to electrochromic studies, organic light-emitting diode (OLED) work was also carried out using FCSNS. A multilayer OLED having a configuration of ITO/PEDOT:PSS/FCSNS/Alq(3)/LiF : Al was fabricated, and it showed a turn-on voltage of approximately 6 V and exhibited a bright green emission with a luminance of 3700 cd m(-2). The maximum luminous efficiency was found to be 2.0 cd A(-1) at 14 V and 11.75 mA cm(-2). The emitted light from the OLED device is green, and has the color coordinates of (x, y) (0.33, 0.54) according to CIE. Electrochemical and optical properties were also studied by using cyclic voltammetry, UV-Vis absorption and fluorescence spectroscopy, respectively.
dc.description.sponsorshipEge University; Canakkale Onsekiz Mart University Research Funds Office; Scientific and Technical Research Council of Turkey (TUBITAK) [104T191]
dc.description.sponsorshipWe acknowledge the support from Ege University, Canakkale Onsekiz Mart University Research Funds Office. S. Demic is also grateful to the Scientific and Technical Research Council of Turkey (TUBITAK, project #: 104T191) for financial support. The authors acknowledge the efforts of Dr B. F. M. de Waal and R. A. A. Bovee (Eindhoven University of Technology) for MALDI-TOFs.
dc.identifier.doi10.1039/c0jm02366c
dc.identifier.endpage2693
dc.identifier.issn0959-9428
dc.identifier.issn1364-5501
dc.identifier.issue8
dc.identifier.scopus2-s2.0-79751508243
dc.identifier.scopusqualityN/A
dc.identifier.startpage2684
dc.identifier.urihttps://doi.org/10.1039/c0jm02366c
dc.identifier.urihttps://hdl.handle.net/20.500.12428/26803
dc.identifier.volume21
dc.identifier.wosWOS:000287092000041
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherRoyal Soc Chemistry
dc.relation.ispartofJournal of Materials Chemistry
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectSoluble Conducting Polymer
dc.subjectColoration Efficiency
dc.subjectElectropolymerization
dc.subjectProgress
dc.titleElectrochromic and electroluminescent devices based on a novel branched quasi-dendric fluorene-carbazole-2,5-bis(2-thienyl)-1H-pyrrole system
dc.typeArticle

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