ICCAS OpenIR
Synthesis and Characterization of Polyfluorenes Containing Bisphenazine Units
Wang, Ming1,2; Tong, Hui1; Cheng, Yanxiang1; Xie, Zhiyuan1; Wang, Lixiang1; Jing, Xiabin1; Wang, Fosong1
2010-05-01
Source PublicationJOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
ISSN0887-624X
Volume48Issue:9Pages:1990-1999
AbstractNovel 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
KeywordBisphenazine Energy Transfer Electrochemistry Heteroatom-containing Polymers Light-emitting Diodes (Led) Polyfluorene
DOI10.1002/pola.23966
Indexed BySCI
Language英语
WOS IDWOS:000277017800016
PublisherJOHN WILEY & SONS INC
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/70816
Collection中国科学院化学研究所
Corresponding AuthorWang, Lixiang
Affiliation1.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
Recommended Citation
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.
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