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Synthesis and characterization of red-emission PPV copolymers containing fluorenone unit

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【Author】 ZOU Ying-ping1,PAN Chun-yue1,ZHANG Zhen-hua1,LIU Bo1,HE Yue-hui2,ZHOU Ke-chao2,ZHOU Yi3,LI Yong-fang3 1.School of Chemistry and Chemical Engineering,Central South University,Changsha 410083,China;2.State Key Laboratory of Powder Metallurgy,Central South University,Changsha 410083,China;3.Key Laboratory of Organic Solids,Institute of Chemistry,Chinese Academy of Sciences,Beijing 100190,China

【机构】 School of Chemistry and Chemical Engineering,Central South University； State Key Laboratory of Powder Metallurgy,Central South University； Key Laboratory of Organic Solids,Institute of Chemistry,Chinese Academy of Sciences；

【摘要】 Two soluble copolymers of fluorenone and dioctoxylbenzene(PFN) or anthracene(PFNAn) were synthesized through Heck polymerization,and were characterized by gel permeation chromatography(GPC),FT-IR,1H-NMR,elemental analysis and thermogravimetric analysis.The polymers possess good solubility in common organic solvents and high thermal stability with the onset decomposition temperature at higher than 410 ℃.The photophysical properties of the polymers were investigated in both solutions and spin-coated films.Cyclic voltammetry results revealed that the copolymers possess higher electron affinity and reversible reduction/re-oxidation processes.Their electroluminescent properties were further investigated.PFN and PFNAn show stable and saturated red light emission with high thermal stability and high electron injection ability.This type of conjugated polymers may be promising for the applications as electron acceptors in polymer photovoltaic cells and electron transporting materials.更多还原

【Abstract】 Two soluble copolymers of fluorenone and dioctoxylbenzene(PFN) or anthracene(PFNAn) were synthesized through Heck polymerization,and were characterized by gel permeation chromatography(GPC),FT-IR,1H-NMR,elemental analysis and thermogravimetric analysis.The polymers possess good solubility in common organic solvents and high thermal stability with the onset decomposition temperature at higher than 410 ℃.The photophysical properties of the polymers were investigated in both solutions and spin-coated films.Cyclic voltammetry results revealed that the copolymers possess higher electron affinity and reversible reduction/re-oxidation processes.Their electroluminescent properties were further investigated.PFN and PFNAn show stable and saturated red light emission with high thermal stability and high electron injection ability.This type of conjugated polymers may be promising for the applications as electron acceptors in polymer photovoltaic cells and electron transporting materials.更多还原

【关键词】 conjugated polymers； fluorenone； photophysical properties； red-emission polymers； electron affinity；
【Key words】 conjugated polymers； fluorenone； photophysical properties； red-emission polymers； electron affinity；

【基金】 Projects(50803074, 50633050) supported by the National Natural Science Foundation of China;Project supported by the Opening Fund of State Key Laboratory of Powder Metallurgy;Start-up Fund of Central South University, China

【文献出处】 Journal of Central South University of Technology ,中南大学学报(英文版) , 编辑部邮箱 ,2010年02期

【分类号】O631.3
【下载频次】103

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