Conventional and inverted organic light emitting diodes based on bright green emmisive polyfluorene derivatives

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dc.authoridKoyuncu, Sermet/0000-0001-8352-8326
dc.authoridKOK, Cansu/0000-0002-0978-3633
dc.authoridCANIMKURBEY, BETUL/0000-0003-1900-3722
dc.authoridPIRAVADILI, Selin/0000-0001-5030-6698
dc.contributor.authorMucur, Selin Piravadili
dc.contributor.authorKok, Cansu
dc.contributor.authorBilgili, Hakan
dc.contributor.authorCanimkurbey, Betul
dc.contributor.authorKoyuncu, Sermet
dc.date.accessioned2025-01-27T20:31:22Z
dc.date.available2025-01-27T20:31:22Z
dc.date.issued2018
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractElectro-active green light-emitting polymers based on polyfluorene derivatives (SF5 and SF6) were synthesized by Suzuki coupling reaction. Effect of fluorenone moiety on the main chain of the polyfluorene with allyl subunit was investigated against to performance of both inverted bottom emission and conventional organic light emitting diodes (IBOLEDs and OLEDs, respectively). 2,2',2-(1,3,5-Benzinetriyl)-tris(1-phenyl-1-H- benzimidazole) (TPBI) was then utilized as an electron transport layer (ETL) to analyze the change in transport characteristics of the devices with a structure of ITO/PEDOT:PSS/polyfluorene/TPBI/Ca/Al. The results showed that efficiency enhanced nearly four times while the light output values were lowered with the insertion of TPBI as an ETL. In addition, IBOLEDs were also fabricated with a device architecture of ITO/ZnO/polyfluorene/V2O5 /Al being keen on backwards charge injection behavior of the polymers. IBOLEDs were fabricated by using synthesized zinc oxide (ZnO) as the electron-injecting layer. Luminance and luminous efficiency were significantly low while turn on voltages were too low with respect to the conventional devices fabricated. Further, annealing treatment were optimized for light output characteristics of the fabricated OLEDs. This study revealed the importance of charge transport feature of the synthesized polyfluorene derivatives in electroluminescent devices with variant architecture. (C) 2018 Elsevier Ltd. All rights reserved.
dc.description.sponsorshipScientific and Technical Research Council of Turkey (TUBITAK); Turkish Academy of Sciences
dc.description.sponsorshipS. Koyuncu is grateful to Scientific and Technical Research Council of Turkey (TUBITAK) and Turkish Academy of Sciences for financial support.
dc.identifier.doi10.1016/j.polymer.2018.07.063
dc.identifier.endpage107
dc.identifier.issn0032-3861
dc.identifier.issn1873-2291
dc.identifier.scopus2-s2.0-85053072854
dc.identifier.scopusqualityQ1
dc.identifier.startpage101
dc.identifier.urihttps://doi.org/10.1016/j.polymer.2018.07.063
dc.identifier.urihttps://hdl.handle.net/20.500.12428/23122
dc.identifier.volume151
dc.identifier.wosWOS:000442400300012
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Sci Ltd
dc.relation.ispartofPolymer
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectOrganic light-emitting diode
dc.subjectInverted OLEDs
dc.subjectGreen emmisive polyfluorene
dc.titleConventional and inverted organic light emitting diodes based on bright green emmisive polyfluorene derivatives
dc.typeArticle

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