Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Shih, Ping-I | en_US |
dc.contributor.author | Chien, Chen-Han | en_US |
dc.contributor.author | Chuang, Chu-Ying | en_US |
dc.contributor.author | Shu, Ching-Fong | en_US |
dc.contributor.author | Yang, Cheng-Han | en_US |
dc.contributor.author | Chen, Jian-Hong | en_US |
dc.contributor.author | Chi, Yun | en_US |
dc.date.accessioned | 2014-12-08T15:15:03Z | - |
dc.date.available | 2014-12-08T15:15:03Z | - |
dc.date.issued | 2007 | en_US |
dc.identifier.issn | 0959-9428 | en_US |
dc.identifier.uri | http://hdl.handle.net/11536/11319 | - |
dc.identifier.uri | http://dx.doi.org/10.1039/b616043c | en_US |
dc.description.abstract | We report the synthesis and characterization of a novel silane - fluorene hybrid, triphenyl-(4-(9-phenyl- 9H-fluoren-9-yl) phenyl) silane (TPSi-F), used as the host material for blue phosphorescent devices. TPSi-F is constructed by linking p-substituted tetraphenylsilane to the fluorene framework through a non-conjugated, sp(3)-hybridized carbon atom (C- 9) to enhance thermal and morphological stabilities, while maintaining the much needed higher singlet and triplet energy gap. Highly efficient sky-blue phosphorescent OLEDs were obtained when employing TPSi-F as the host and iridium(III) bis[(4,6-difluorophenyl) pyridinato-N,C-2'] (FIrpic) as the guest. The maximum external quantum efficiency (max. E. Q. E.) of this device reached as high as 15% (30.6 cd A(-1)). Furthermore, upon switching the guest from FIrpic to a new blue phosphor FIrfpy, better blue-emitting OLEDs were produced with a max. E. Q. E. of 9.4% (15.1 cd A(-1)). These TPSi-F based blue phosphorescent devices show a 2-fold enhancement in device efficiency compared with reference devices based on the conventional host material 1,3-bis(9-carbazolyl) benzene (mCP). | en_US |
dc.language.iso | en_US | en_US |
dc.title | Novel host material for highly efficient blue phosphorescent OLEDs | en_US |
dc.type | Article | en_US |
dc.identifier.doi | 10.1039/b616043c | en_US |
dc.identifier.journal | JOURNAL OF MATERIALS CHEMISTRY | en_US |
dc.citation.volume | 17 | en_US |
dc.citation.issue | 17 | en_US |
dc.citation.spage | 1692 | en_US |
dc.citation.epage | 1698 | en_US |
dc.contributor.department | 應用化學系 | zh_TW |
dc.contributor.department | Department of Applied Chemistry | en_US |
dc.identifier.wosnumber | WOS:000245946800008 | - |
dc.citation.woscount | 81 | - |
Appears in Collections: | Articles |
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