High carrier mobility up to 0.1 cm2V-1s-1 at ambient temperatures in thiophene-based smectic liquid crystals

被引:185
作者
Funahashi, M [1 ]
Hanna, JI [1 ]
机构
[1] Tokyo Inst Technol, Imaging Sci & Engn Lab, Midori Ku, Kanagawa 2268503, Japan
关键词
D O I
10.1002/adma.200401274
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The synthesis and carrier-transport properties of oligothiophene liquid-crystalline semiconductors are reported. An asymmetrically substituted terthiophene and quaterthiophene give rise to a highly ordered smectic mesophase (see Figure) with an excellent carrier mobility of up to 0.1 cm(2) V-1 s(-1) over a wide mesophase temperature range, including ambient temperatures. Ibis mobility is comparable to that of organic polycrystals.
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页码:594 / +
页数:6
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