单晶有机场效应晶体管的dithiophene-tetrathiafulvalene高流动性
Marta Mas-Torrent1, Murat Durkut, Peter Hadley
1Department of NanoScience, Delft University of Technology, Lorentzweg 1, 2628 CJ Delft, The Netherlands. marta@qt.tn.tudelft.nl
Journal of the American Chemical Society
|January 30, 2004
概括
使用dithiophene-tetrathiafulvalene (DT-TTF) 晶体制造了高性能有机场效应晶体. 这种有机半导体实现了创纪录的1.4cm2/Vs孔移动性,超过了基于五烯的材料.
科学领域:
- 材料科学 材料科学 材料科学
- 有机电子 有机电子
- 半导体物理 半导体物理
背景情况:
- 有机半导体对于灵活的电子产品至关重要.
- 狄托芬-四亚富瓦烯 (DT-TTF) 是一种有机半导体,具有潜在的应用.
- 实现高电荷载体移动性和ON/OFF比率是设备性能的关键.
研究的目的:
- 使用DT-TTF制造和表征单晶场效应晶体管 (FET).
- 评估基于DT-TTF的FET的电荷传输特性,特别是孔移动性和ON/OFF比率.
- 为了比较基于DT-TTF的FET与现有的有机半导体的性能.
主要方法:
- 单晶 DT-TTF 的生长和准备使用滴技术.
- 使用微型金电极与DT-TTF晶体接触.
- 一个基板作为场效应晶体管配置的后门.
主要成果:
- 长而薄的DT-TTF单晶成功地形成并集成到FET设备中.
- 观察到的最高孔流动性达到1.4cm2/Vs.
- 在DT-TTF FET中,实现了至少7x105的高开/关比.
结论:
- DT-TTF单晶显示出出色的电荷传输特性.
- 观察到的孔移动性是报告的有机半导体非基于五烯的最高值.
- DT-TTF是高性能有机电子设备的一个有希望的材料.
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