Synthesis and Characterization of Polyfluorenes Containing Bisphenazine Units

doi:10.1002/pola.23966

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	Synthesis and Characterization of Polyfluorenes Containing Bisphenazine Units
	Wang, Ming 1,2; Tong, Hui 1; Cheng, Yanxiang 1; Xie, Zhiyuan 1; Wang, Lixiang 1; Jing, Xiabin 1; Wang, Fosong 1
刊名	JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
	2010-05-01
卷号	48 期号:9 页码:1990-1999
关键词	Bisphenazine Energy Transfer Electrochemistry Heteroatom-containing Polymers Light-emitting Diodes (Led) Polyfluorene
ISSN号	0887-624X
DOI	10.1002/pola.23966
英文摘要	Novel conjugated copolymers based on 9,9-dioctylfluorene and bisphenazine (BP) were synthesized by Suzuki polymerization. Energy transfer from the conjugated main chain to the BP moieties was observed. Full energy transfer was achieved when the molar content of the bisphenazine was 20% (20BPPF) in toluene solution. The similar phenomena were observed even for 1% bisphenazine content copolymer (1BPPF) in film. The lowest occupied molecular orbital (LUMO) energy levels (-3.06 eV) of the copolymers were lower than that of the polyfluorene homopolymer (PFO; -2.65 eV), indicating that the introduction of the BP unit was benefit to electron injection. Single-layer electroluminescent devices (ITO/PEDOT:PSS/polymer/LiF/Al) were fabricated to investigate their electroluminescence (EL) performances. The maximum brightness and current efficiency of all BPPF copolymers surpassed the PFO homopolymer. The best single-layer device was based on 5BPPF, with a maximum brightness of 1532 cd/m(2) and current efficiency of 1.09 cd/A. Much higher efficiency could be achieved for multilayer EL devices of 5BPPF (ITO/PEDOT:PSS/PVK/polymer/TPBI/LiF/Al), which showed a maximum current efficiency of 10.01 cd/A. (C) 2010 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 48: 1990-1999, 2010
语种	英语
出版者	JOHN WILEY & SONS INC
WOS记录号	WOS:000277017800016
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/70815]
专题	中国科学院化学研究所
通讯作者	Wang, Lixiang
作者单位	1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Wang, Ming,Tong, Hui,Cheng, Yanxiang,et al. Synthesis and Characterization of Polyfluorenes Containing Bisphenazine Units[J]. JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,2010,48(9):1990-1999.
APA	Wang, Ming.,Tong, Hui.,Cheng, Yanxiang.,Xie, Zhiyuan.,Wang, Lixiang.,...&Wang, Fosong.(2010).Synthesis and Characterization of Polyfluorenes Containing Bisphenazine Units.JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,48(9),1990-1999.
MLA	Wang, Ming,et al."Synthesis and Characterization of Polyfluorenes Containing Bisphenazine Units".JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY 48.9(2010):1990-1999.