Electroluminescence Enhancement by Modifying Poly[9,9-di-(2′-ethylhexyl)fluorenyl-2,7-diyl]

被引：0
作者：
Zhang, Qiushu [1 ]
Zhang, Sihui [2 ]
Peng, Bei [1 ]
机构：
[1] Univ Elect Sci & Technol China, Sch Mechatron Engn, Chengdu 611731, Sichuan, Peoples R China
[2] Xihua Univ, Sch Mech Engn, Chengdu, Sichuan, Peoples R China
来源：
POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING | 2011年 / 50卷 / 01期
关键词：
Blending; Electroluminescence; End-capping; Polyfluorene; LIGHT-EMITTING-DIODES; CONJUGATED-POLYMER BLENDS; FORSTER ENERGY-TRANSFER; POLYFLUORENE; PERFORMANCE; EFFICIENCY; EMISSION; PHOTOPHYSICS; COPOLYMERS; MORPHOLOGY;
D O I：
10.1080/03602559.2010.512352
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
We report on the fabrication and characterization of light emitting diodes based on pristine or modified poly[9,9-di-(2'-ethylhexyl)fluorenyl-2,7-diyl]. The modified polyfluorene was formed by blending with the hole transport material poly[(9,9-dioctylfluorenyl-2,7-diyl)-co-(N,N'-bis(4-butylphenyl-1,1'-biphenylene-4,4'-diamine))], or endcapping with dimethylphenyl. The addition of the hole-transporting polymer to the host polymer or the attachment of the end-capper to the polymer chain improved device properties. Phase-separated domains in blend thin film morphology were observed in scanning electron microscope pictures. These domains may play a role in the improved device performance. The introduction of the hole-transporting polymer or the end-capper also improved blue emission.
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页码：67 / 72
页数：6
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