Synthesis and characterization of hyperbranched polyfluorenes containing   triarylpyrazoline cores towards efficient blue light-emitting diodes

doi:10.1002/pola.22274

CORC > 北京大学 > 化学与分子工程学院

	Synthesis and characterization of hyperbranched polyfluorenes containing triarylpyrazoline cores towards efficient blue light-emitting diodes
	Peng, Qiang ; Yan, Liushui ; Chen, Dezhi ; Wang, Fuzhi ; Wang, Ping ; Zou, Dechun
刊名	journal of polymer science part a polymer chemistry
	2007
关键词	aggregates conjugated polymers EL efficiency excimers fluorescence hyperbranched polymer light-emitting diodes (LED) polyfluorene DENDRON SIDE-CHAINS CONJUGATED POLYMERS POLARIZED ELECTROLUMINESCENCE SUBSTITUTED POLYFLUORENE SPECTRAL STABILITY DERIVATIVES EMISSION PHOTOLUMINESCENCE PERFORMANCE COPOLYMERS
DOI	10.1002/pola.22274
英文摘要	New series of hyperbranched polyfluorenes containing triarylpyrazoline cores, PFZ10, PFZ20, PFNZ10, and PFNZ20, have been synthesized according to the "A(2) + A'(2) + B(3)" Suzuki coupling method. The structures and property of the monomers and conjugated polymers were characterized by elemental analysis, gel permeation chromatography, cyclic voltammetry, thermogravimetric analysis, differential scanning calorimetry, and UV-visible absorption, (1)H NMR, (13)C NMR, and photoluminescence spectroscopies. All these polymers exhibited good solubility in common organic solvents and good thermal stability. The long-wavelength emission of polyfluorenes had been effectively reduced in these hyperbranched polymers. Standard polymer light emitting devices (PLEDs) from PFZ10, PFZ20, PFNZ10, and PFNZ20, with the configuration of ITO/PEDOT/polymer/TPBI/Alq(3)/Mg:Ag, exhibited good electroluminescence (EL) properties The PLED based on PFNZ10 emitted pure blue light with a low turn-on voltage of 5.3 V and a high EL efficiency of about 1.93%. (c) 2007 Wiley Periodicals, Inc.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000250788600026&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Polymer Science; SCI(E); EI; 26; ARTICLE; 22; 5296-5307; 45
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/252655]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Peng, Qiang,Yan, Liushui,Chen, Dezhi,et al. Synthesis and characterization of hyperbranched polyfluorenes containing triarylpyrazoline cores towards efficient blue light-emitting diodes[J]. journal of polymer science part a polymer chemistry,2007.
APA	Peng, Qiang,Yan, Liushui,Chen, Dezhi,Wang, Fuzhi,Wang, Ping,&Zou, Dechun.(2007).Synthesis and characterization of hyperbranched polyfluorenes containing triarylpyrazoline cores towards efficient blue light-emitting diodes.journal of polymer science part a polymer chemistry.
MLA	Peng, Qiang,et al."Synthesis and characterization of hyperbranched polyfluorenes containing triarylpyrazoline cores towards efficient blue light-emitting diodes".journal of polymer science part a polymer chemistry (2007).