High electron mobility and ambipolar transport in organic thin-film transistors based on a π-stacking quinoidal terthiophene

被引:289
作者
Chesterfield, RJ
Newman, CR
Pappenfus, TM
Ewbank, PC
Haukaas, MH
Mann, KR
Miller, LL
Frisbie, CD
机构
[1] Univ Minnesota, Dept Chem Engn & Mat Sci, Minneapolis, MN 55455 USA
[2] Univ Minnesota, Dept Chem, Minneapolis, MN 55455 USA
关键词
D O I
10.1002/adma.200305200
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Thin-film transistors (TFTs) based on a new n-channel organic semiconductor (DCMT; see Figure) are reported. An electron mobility as high as 0.2 cm(2)/V s was observed, as well as ambipolar TFT behavior. Variable temperature measurements reveal that electron conduction is activated, with a small activation energy of 35 +/- 10 meV These results demonstrate that quinoidal oligothiophenes are a promising new class of organic semiconductors for TFTs.
引用
收藏
页码:1278 / +
页数:6
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