Metal-coated carbon nanotube tip for scanning tunneling microscope
Metal-coated carbon nanotube tip for scanning tunneling microscope
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DOI：
10.1143/jjap.43.l644
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发表时间：
2004-05-01
期刊：
影响因子：
--
通讯作者：
Oura, K
中科院分区：
文献类型：
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作者：
Ikuno, T;Katayama, M;Oura, K
研制了一种用于扫描隧道显微镜（STM）的金属涂层碳纳米管（CNT）针尖。通过脉冲激光沉积（PLD），附着到钨尖端的CNT均匀地涂覆有3-6 nm的钨薄层。使用钨涂覆的CNT尖端对Si（111）-7 X 7表面的观察证明了稳定的原子成像和扫描隧道光谱（STS）测量的潜力，这可以从原始阶段实现。结果表明，凭借薄涂层，头端的机械稳健性和柔性得以保持。
A metal-coated carbon nanotube (CNT) tip for scanning tunneling microscope (STM) has been developed. By pulsed laser deposition (PLD), a CNT attached to a tungsten tip was uniformly coated with 3-6 nm of tungsten thin layer. The observation of a Si(1 1 1)-7 x 7 surface using the tungsten-coated CNT tip demonstrated stable atomic imaging and potentiality of scanning tunneling spectroscopy (STS) measurement, which can be achieved from the pristine stage. It was demonstrated that the mechanical robustness and flexibility of the tip were maintained by virtue of the thin coated layer.