Simultaneous deposition of metallic bundles of single-walled carbon nanotubes using ac-dielectrophoresis
Simultaneous deposition of metallic bundles of single-walled carbon nanotubes using ac-dielectrophoresis
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DOI：
10.1021/nl0342343
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发表时间：
2003-08-01
期刊：
影响因子：
10.8
通讯作者：
von Lohneysen, H
中科院分区：
文献类型：
--
作者：
Krupke, R;Hennrich, F;von Lohneysen, H
一个简单的和可扩展的计划的基础上交流（AC-）介电电泳用于单束单壁碳纳米管（SWNT）的同时和选址沉积到大量的接触，只需要一个键合线。这允许大量的运输测量，表明沉积的束包含至少一个金属单壁碳纳米管占主导地位的运输。利用高压脉冲，金属束被转换成具有p型、双极型或n型行为的肖特基势垒型场效应晶体管。从一个简单的机电模型中，我们得出了交流介电电泳选择性沉积包含金属管的束的事实。
A simple and scalable scheme based on alternating current (ac-) dielectrophoresis is used for the simultaneous and site-selective deposition of single bundles of single-walled carbon nanotubes (SWNTs) onto a large number of contacts requiring only one bond wire. This allows for a large number of transport measurements that show that the deposited bundles contain at least one metallic SWNT dominating the transport. With high-voltage pulses, metallic bundles are transformed into Schottky-barrier-type field-effect transistors with p-type, ambipolar, or n-type behavior. From a simple electromechanical model, we derive the fact that ac-dielectrophoresis selectively deposits bundles containing metallic tubes.