微型有机晶体管与碳纳米管作为准一维电极
Pengfei Qi1, Ali Javey, Marco Rolandi
1Department of Chemistry and Laboratory for Advanced Materials, Stanford University, Stanford, California 94305, USA.
Journal of the American Chemical Society
|September 24, 2004
概括
单壁碳纳米管 (SWNT) 允许创建超小的有机场效应晶体管 (FET). 这些分子尺度的设备表现出卓越的性能和高效的切换,由于其独特的准一维的电极几何学.
科学领域:
- 纳米技术 纳米技术
- 分子电子学分子电子学
- 有机电子 有机电子
背景情况:
- 设备尺寸正在接近分子尺度,使电极特性变得至关重要.
- 传统的光刻电极在纳米尺度上面临着局限性.
- 碳纳米管为纳米尺度设备制造提供了独特的特性.
研究的目的:
- 研究使用单壁碳纳米管 (SWNT) 作为有机场效应晶体管 (FET) 的电极.
- 用SWNT电极构建的分子级有机晶体管的性能评估.
- 在有机电子学中探索准一维电极几何学的优势.
主要方法:
- 使用单壁碳纳米管 (SWNT) 作为准一维电极制造有机场效应晶体管 (FET).
- 具有分子尺度宽度 (约. 2 nm) 和通道长度 (1-3 nm).
- 对设备性能进行分析,包括电导度调制和开关特性.
主要成果:
- 通过SWNT电极,可以构建具有分子尺度尺寸的有机FET.
- 准1D电极几何学提供了有利的门静电学,用于高效切换超短有机通道.
- 这些设备以数量级的数量表现出室温电导度调制,性能优于用光刻电极的设备.
- 共价碳-碳键被用来形成与分子材料的接触.
结论:
- 单壁碳纳米管 (SWNT) 是有效的准-1D电极,用于构建高性能分子级有机晶体管.
- SWNT电极的独特几何结构导致了优越的切换特性和在超短有机通道中高效的调制.
- 碳纳米管电极为开发新型分子电子设备提供了一个有希望的途径.
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