Thin film characteristics and FET performances of β-octyl-substituted long oligothiophenes

被引:8
作者
Takimiya, Kazuo [1 ]
Sakamoto, Katsuhiro
Otsubo, Tetsuo
Kunugi, Yoshihito
机构
[1] Hiroshima Univ, Grad Sch Engn, Dept Appl Chem, Higashihiroshima 7398527, Japan
[2] Hiroshima Univ, Inst Adv Mat Res, Higashihiroshima 7398530, Japan
[3] Tokai Univ, Fac Engn, Dept Appl Chem, Hiratsuka, Kanagawa 2591292, Japan
关键词
D O I
10.1246/cl.2006.942
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A series of beta-octyl-substituted oligothiophenes from 6-mer to 41-mer was examined for active layers of organic filed-effect transistors. Upon spin-coating from chloroform solution, the 20-mer and the longer oligomers formed homogenous thin films composed of stacked lamella structures. Top-contact devices fabricated using these films showed good p-channel FET characteristics with mobilities of 10(-3) cm(2) V-1 s(-1) which gradually increase with the extension of chain length.
引用
收藏
页码:942 / 943
页数:2
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