n-type building blocks for organic electronics: A homologous family of fluorocarbon-substituted thiophene oligomers with high carrier mobility

被引:303
|
作者
Facchetti, A
Mushrush, M
Katz, HE
Marks, TJ
机构
[1] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA
[2] Northwestern Univ, Ctr Mat Res, Evanston, IL 60208 USA
[3] Bell Labs, Lucent Technol, Murray Hill, NJ 07974 USA
关键词
D O I
10.1002/adma.200390003
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A substantial enhancement of thermal stability, volatility, and electron affinity, switching the semiconducting behavior from p- to n-type, is achieved by fluoroalkyl substitution of thiophene oligomers (see Figure). When this novel series is compared with the fluorine-free analogues, trends in molecular packing, optical absorption, HOMO-LUMO gap, and pi-pi interactions are found to be strikingly similar.
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页码:33 / +
页数:7
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