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Synthesis and electroluminescence of poly(aryleneethynylene)s based on fluorene containing hole-transport units
Zhan, XW; Liu, YQ; Yu, G; Wu, X; Zhu, DB; Sun, RG; Wang, DK; Epstein, AJ
2001
Source PublicationJOURNAL OF MATERIALS CHEMISTRY
ISSN0959-9428
Volume11Issue:6Pages:1606-1611
AbstractA new series of light-emitting poly(aryleneethynylene)s (PAE) based on fluorene with sterically hindered substituents containing hole transport units such as tetraphenyldiaminobiphenyl, carbazole and thiophene and the non-planar unit binaphthyl were synthesized by a palladium-catalyzed coupling reaction. The introduction of hole transport moieties into the PAE main chain can improve the luminance properties of PAE type polymers. The electronic structures and photo- and electroluminescent (EL) properties of these polymers can be manipulated by simply varying the nature of the co-units in the polymeric chain. The spectral emission varies from greenish-blue to green or yellowish-green, depending on the composition of the copolymers. A single-layer light-emitting diode (LED) prepared from poly{[2,7-diethynyl-9,9-bis(2-ethylhexyl)fluorene]-alt-[N,N'-diphenyl-N,N'-bis(4-phenyl)-1,1'-biphenyl-4,4'-diamine]} (TPD-PFE) using an aluminium electrode emits green light (510 nm) with an EL external quantum efficiency of 0.007% and a brightness of 30 cd m(-2) at a bias voltage of 27 V and a current density of 420 mA cm(-2). An EL external quantum efficiency of 0.06% can be obtained from a blue-emitting double-layer LED with the structure of ITO/TPD-PFE/2-(2-hydroxyphenyl)pyridylberyllium/LiF/AlLi at a current density of 38 mA cm(-2).
Indexed BySCI
Language英语
WOS IDWOS:000168860400010
PublisherROYAL SOC CHEMISTRY
Citation statistics
Cited Times:46[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/77086
Collection中国科学院化学研究所
Corresponding AuthorLiu, YQ
Affiliation1.Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing 100080, Peoples R China
2.Ohio State Univ, Dept Phys, Columbus, OH 43210 USA
3.Ohio State Univ, Dept Chem, Columbus, OH 43210 USA
Recommended Citation
GB/T 7714
Zhan, XW,Liu, YQ,Yu, G,et al. Synthesis and electroluminescence of poly(aryleneethynylene)s based on fluorene containing hole-transport units[J]. JOURNAL OF MATERIALS CHEMISTRY,2001,11(6):1606-1611.
APA Zhan, XW.,Liu, YQ.,Yu, G.,Wu, X.,Zhu, DB.,...&Epstein, AJ.(2001).Synthesis and electroluminescence of poly(aryleneethynylene)s based on fluorene containing hole-transport units.JOURNAL OF MATERIALS CHEMISTRY,11(6),1606-1611.
MLA Zhan, XW,et al."Synthesis and electroluminescence of poly(aryleneethynylene)s based on fluorene containing hole-transport units".JOURNAL OF MATERIALS CHEMISTRY 11.6(2001):1606-1611.
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