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Blue-Light-Emitting Polyfluorene Functionalized with Triphenylamine and Cyanophenylfluorene Bipolar Side Chains
Lin, Ying1; Ye, Teng Ling2; Chen, Yu1; Ma, Dong Ge2; Chen, Zhi Kuan3; Dai, Yan Feng2; Li, Yong Xi1
2010-12-15
Source PublicationJOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
ISSN0887-624X
Volume48Issue:24Pages:5930-5937
AbstractA new bipolar conjugated polyfluorene copolymer with triphenylamine and cyanophenylfluorene as side chains poly{[9 9 di(triphenylamine)fluorene] [9 9 dihexyl fluorene] [2 7 bis(4' cyanophenyl) 9 9' spirobifluorene]} (PTHCF) was synthe sized for studying the polymer backbone emission Its absolute weight average molecular weight was determined as 485 x 10(4) by using gel permeation chromatography with a multiangle light scattering detector In contrast to the electronic absorp non spectrum in dilute solution the absorbance of PTHCF in thin film was slightly blue shifted By comparison of the solu tion and thin film photoluminescence (PL) spectra, a red shift of Delta/ = 8-9 nm was observed in the thin film PL spectrum The HOMO and LUMO energy levels of the resulting polymer were electrochemically estimated as -5 68 and -2 80 eV respectively Under the electric field intensity of 48 x 10(5) V cm(-1) the obtained hole and electron mobilities were 2 41 x 10(-4) and 1 40 x 10(-4) cm(2) V(-1) s(-1) respectively An electro luminescence device with configuration of ITO/PEDOT PSS/PTHCF(70%)+PBD(30%)/CsF/Ca/Al exhibited a deep blue emission as a result of excitons formed by the charges migrating along the full fluorene main chain The incorporation of the bipolar side chains into the polymer structure prevented the intermolecular interaction of the fluorene moieties balance charge injection/transport and thereby improve the polymer backbone emis sion (C) 2010 Wiley Periodicals Inc J Polym Sci Part A Polym Chem 48 5930-5937 2010
KeywordBackbone Emission Bipolar Side Chains Charge Transfer Copolymerization Cyanophenylfluorene Light Emitting Diodes (Leds) Pled Polyfluorene Synthesis Triphenylamine Uv-vis Spectroscopy
DOI10.1002/pola.24406
Indexed BySCI
Language英语
WOS IDWOS:000285485700034
PublisherWILEY-BLACKWELL
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/70326
Collection中国科学院化学研究所
Corresponding AuthorChen, Yu
Affiliation1.E China Univ Sci & Technol, Key Lab Adv Mat, Inst Appl Chem, Shanghai 200237, Peoples R China
2.Chinese Acad Sci, State Key Lab Polymer Phys & Chem, Changchun Inst Appl Chem, Changchun 130022, Peoples R China
3.Inst Mat Res & Engn, Singapore 117602, Singapore
Recommended Citation
GB/T 7714
Lin, Ying,Ye, Teng Ling,Chen, Yu,et al. Blue-Light-Emitting Polyfluorene Functionalized with Triphenylamine and Cyanophenylfluorene Bipolar Side Chains[J]. JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,2010,48(24):5930-5937.
APA Lin, Ying.,Ye, Teng Ling.,Chen, Yu.,Ma, Dong Ge.,Chen, Zhi Kuan.,...&Li, Yong Xi.(2010).Blue-Light-Emitting Polyfluorene Functionalized with Triphenylamine and Cyanophenylfluorene Bipolar Side Chains.JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,48(24),5930-5937.
MLA Lin, Ying,et al."Blue-Light-Emitting Polyfluorene Functionalized with Triphenylamine and Cyanophenylfluorene Bipolar Side Chains".JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY 48.24(2010):5930-5937.
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