Carbon-nanotube tips for scanning probe microscopy: Preparation by a controlled process and observation of deoxyribonucleic acid
Carbon-nanotube tips for scanning probe microscopy: Preparation by a controlled process and observation of deoxyribonucleic acid
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DOI：
10.1063/1.123261
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发表时间：
1999-06-28
影响因子：
4
通讯作者：
Takeyasu, K
中科院分区：
文献类型：
--
作者：
Nishijima, H;Kamo, S;Takeyasu, K
我们报告了一种制造用于扫描探针显微镜的碳纳米管尖端的受控过程。该过程包括三个步骤：（1）使用电泳纯化和排列碳纳米管，（2）在扫描电子显微镜下将单个排列的纳米管转移到传统的硅尖端上，以及（3）通过碳沉积将纳米管附着在硅尖端上。使用此过程制造的纳米管尖端表现出很强的附着力并且机械坚固。最后，通过在空气中用轻敲模式原子力显微镜对孪生脱氧核糖核酸的精细结构进行成像，证明了这些尖端的性能。 (C) 1999 年美国物理研究所。 [S0003-6951(99)00226-0]。
We report a controlled process to make carbon-nanotube tips for scanning probe microscopes. The process consists of three steps: (1) purification and alignment of carbon nanotubes using electrophoresis, (2) transfer of a single aligned nanotube onto a conventional Si tip under the view of a scanning electron microscope, and (3) attachment of the nanotube on the Si tip by carbon deposition. Nanotube tips fabricated using this procedure exhibit strong adhesion and are mechanically robust. Finally, the performance of these tips is demonstrated by imaging the fine structure of twinned deoxyribonucleic acid with tapping-mode atomic force microscopy in air. (C) 1999 American Institute of Physics. [S0003-6951(99)00226-0].