Synthesis and properties of novel poly(p-phenylenevinylene) copolymers for near-infrared emitting diodes

被引:79
作者
Li, XZ [1 ]
Zeng, WJ [1 ]
Zhang, Y [1 ]
Hou, Q [1 ]
Yang, W [1 ]
Cao, Y [1 ]
机构
[1] S China Univ Technol, Inst Polymer Optoelect Mat & Dev, Key Lab Special Funct Mat & Adv Mfg Technol, Guangzhou 510640, Peoples R China
基金
中国国家自然科学基金;
关键词
poly(p-phenylenevinylene); narrow band-gap (NBG); Stille coupling reaction; near-infrared emitting diodes; polymer light-emitting diodes (PLEDs);
D O I
10.1016/j.eurpolymj.2005.05.039
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
A series of novel near-infrared (NIR) electroluminescence (EL) copolymers based on a host poly(p-phenylenevinylene) (PPV) derivative of poly(2-methoxy-5-octyloxy-p-phenylenevinylene) (PMOPV) with different content of narrow band-gap (NBG) unit 4,7-bis(2-thienyl)-2,1,3-benzothiadiazolevinylene (DBTV) or 4,7-bis(2-thienyl)-2,1,3-benzoselena-diazolevinylene (TBSV) was prepared by Stille coupling reaction. All the copolymers are soluble in common organic solvents, most of which emit NIR light accompanied by gradually red-shifting with increasing the content of the NBG units. The peak EL emission of the copolymers with around 30% TBSV content is at about 800 nm. (c) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码:2923 / 2933
页数:11
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