POLYALKYLTHIOPHENES WITH THE SMALLEST BANDGAP AND THE HIGHEST INTRINSIC CONDUCTIVITY

被引：122

作者：

CHEN, TA ^{[1
]}

RIEKE, RD ^{[1
]}

机构：

[1] UNIV NEBRASKA,DEPT CHEM,LINCOLN,NE 68588

来源：

SYNTHETIC METALS | 1993年 / 60卷 / 02期

基金：

美国国家卫生研究院;

关键词：

D O I：

10.1016/0379-6779(93)91240-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The physical properties (electrical absorptions, bandgaps, electroconductivities) of a completely regioregular head-to-tail polyalkylthiophene and a totally regiorandom isopolymer are reported. The regioregular polyalkylthiophenes exhibit, to date, the smallest bandgap (1.7 eV) and the highest intrinsic conductivity (10(-6) S/cm for undoped polymer) of polyalkylthiophenes. The bandgap is 0.3-0.5 eV lower than that of normal polyalkylthiophenes (2.0-2.2 eV) and the intrinsic conductivity is three orders of magnitude higher than that of normal polyalkylthiophenes (10(-9)-10(-10) S/cm). The regioregular polymer also exhibits a large iodine-doped conductivity (average 1350 S/cm) of polymer film. A bipolaron gap state is generated in the iodine-doped regioregular polyalkylthiophene film by chemical oxidation, while it fails for the regiorandom polyalkylthiophene.

引用

页码：175 / 177

页数：3

共 17 条

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