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dc.contributor.authorShu, CFen_US
dc.contributor.authorDodda, Ren_US
dc.contributor.authorWu, FIen_US
dc.contributor.authorLiu, MSen_US
dc.contributor.authorJen, AKYen_US
dc.date.accessioned2014-12-08T15:40:19Z-
dc.date.available2014-12-08T15:40:19Z-
dc.date.issued2003-09-09en_US
dc.identifier.issn0024-9297en_US
dc.identifier.urihttp://dx.doi.org/10.1021/ma030123een_US
dc.identifier.urihttp://hdl.handle.net/11536/27535-
dc.description.abstractA highly efficient blue-light-emitting copolymer with bulky hole-transporting triphenylamine (TPA) and electron-transporting oxadiazole (OXD) pendant groups at the C-9 position of fluorene was synthesized. The results from photoluminescence and electrochemical measurements reveal that both the side chains and the polyfluorene main chain retain their own electronic characteristics in the copolymer. It shows a pure blue emission with no aggregates or excimers formed even after being annealed at 150 degreesC under nitrogen for 20 h. In addition, it also demonstrates improved charge injection and balanced charge transport in electroluminescence. The maximum external quantum efficiency of a single-layer device using this copolymer as the emitting layer is 1.21% (at a brightness of 354 cd/m(2) with driving voltage of 7.6 V). The maximum luminance of the device reaches 4080 cd/m(2) at a bias of 12.0 V and a current density of 640 mA/cm(2).en_US
dc.language.isoen_USen_US
dc.titleHighly efficient blue-light-emitting diodes from polyfluorene containing bipolar pendant groupsen_US
dc.typeArticleen_US
dc.identifier.doi10.1021/ma030123een_US
dc.identifier.journalMACROMOLECULESen_US
dc.citation.volume36en_US
dc.citation.issue18en_US
dc.citation.spage6698en_US
dc.citation.epage6703en_US
dc.contributor.department應用化學系zh_TW
dc.contributor.departmentDepartment of Applied Chemistryen_US
dc.identifier.wosnumberWOS:000185224800004-
dc.citation.woscount222-
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