Synthesis and Hole-Transporting Properties of Highly Fluorescent N-Aryl Dithieno[3,2-b:2′,3′-d]pyrrole-Based Oligomers

被引:23
作者
Balaji, Ganapathy [1 ]
Parameswaran, Manoj [1 ]
Jin, Tan Mein [2 ]
Vijila, Chellappan [2 ]
Zhu Furong [2 ]
Valiyavettil, Suresh [1 ]
机构
[1] Natl Univ Singapore, Dept Chem, Singapore 117543, Singapore
[2] ASTAR, Inst Mat Res & Engn, Singapore 117602, Singapore
关键词
THIN-FILM TRANSISTORS; FIELD-EFFECT TRANSISTORS; BAND-GAP POLYMER; OPTOELECTRONIC DEVICES; ELECTRON-TRANSPORT; CHAIN-LENGTH; DITHIENOPYRROLE; PERFORMANCE; COPOLYMERS; ALKYL;
D O I
10.1021/jp909064n
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A new series of dithieno[3,2-b:2',3'-d]pyrrole-incorporated oligomers was synthesized and characterized. The crystal structure, crystal packing, optical properties, electrochemical properties, and time-of-flight mobilities were investigated in detail. The oligomers are highly fluorescent in both solution and the solid state. The solution-state quantum yield of these new compounds ranged from 52 to 75%, Band gaps of these oligomers were found to be in the range of 2.5-2.8 CV. The surface morphology of the film was also characterized by atomic force microscopy. The material was found to be hole-transporting with a mobility oil the order of 10(-6) cm(2)/(V S).
引用
收藏
页码:4628 / 4635
页数:8
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