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A New Carbazole-Constructed Hyperbranched Polymer: Convenient One-Pot Synthesis, Hole-Transporting Ability, and Field-Effect Transistor Properties
Li, Zhong'an1; Liu, Yunqi2; Yu, Gui2; Wen, Yugeng2; Guo, Yunlong2; Ji, Li1; Qin, Jingui1; Li, Zhen1
2009-08-24
Source PublicationADVANCED FUNCTIONAL MATERIALS
ISSN1616-301X
Volume19Issue:16Pages:2677-2683
AbstractA new hyperbranched polymer (HB-car), constructed fully by carbazole moieties, is successfully synthesized through a one-pot Suzuki coupling reaction. The resultant polymer is well-characterized, and its hole-transporting ability is studied carefully. The device, in which HB-car is utilized as a hole-transporting layer and tris-(8-hydroxyquinoline) aluminum as an electron-emitting layer as well as electron-transporting layer, gives a much higher efficiency (3.05 cd A(-1)), than that of a poly(N-vinylcarbazole) based device (2.19 cd A(-1)) under similar experimental conditions. The remarkable performance is attributed to its low energy barrier and enhanced hole-drifting ability in the HB-car based device. In addition, for the first time, a field-effect transistor (FET) based on the hyperbranched polymer is fabricated, and the organic FET device shows that HB-car is a typical p-type FET material with a saturation mobility of 1 x 10(-5) cm(2) V(-1) s(-1), a threshold voltage of -47.1 V, and an on-to-off current ratio of 10(3).
DOI10.1002/adfm.200900513
Indexed BySCI
Language英语
WOS IDWOS:000269374800019
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Cited Times:49[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/67354
Collection中国科学院化学研究所
Corresponding AuthorLi, Zhong'an
Affiliation1.Wuhan Univ, Dept Chem, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Li, Zhong'an,Liu, Yunqi,Yu, Gui,et al. A New Carbazole-Constructed Hyperbranched Polymer: Convenient One-Pot Synthesis, Hole-Transporting Ability, and Field-Effect Transistor Properties[J]. ADVANCED FUNCTIONAL MATERIALS,2009,19(16):2677-2683.
APA Li, Zhong'an.,Liu, Yunqi.,Yu, Gui.,Wen, Yugeng.,Guo, Yunlong.,...&Li, Zhen.(2009).A New Carbazole-Constructed Hyperbranched Polymer: Convenient One-Pot Synthesis, Hole-Transporting Ability, and Field-Effect Transistor Properties.ADVANCED FUNCTIONAL MATERIALS,19(16),2677-2683.
MLA Li, Zhong'an,et al."A New Carbazole-Constructed Hyperbranched Polymer: Convenient One-Pot Synthesis, Hole-Transporting Ability, and Field-Effect Transistor Properties".ADVANCED FUNCTIONAL MATERIALS 19.16(2009):2677-2683.
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