Electrical conductivity of a single parallel contact between carbon nanotubes.
Electrical conductivity of a single parallel contact between carbon nanotubes.
复制标题
碳纳米管之间单个平行接触的电导率。
DOI：
10.1039/d2nr04112j
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发表时间：
2022
期刊：
影响因子：
6.7
通讯作者：
K. Hirahara
中科院分区：
文献类型：
--
作者：
H. Hamasaki;Sougo Nagahama;K. Hirahara
界面电阻在纳米材料组装体的输运性质中起着关键作用。然而，由于实验方法的困难，对它们的理解仍然有限。在这里，我们报告在原位测量碳纳米管之间的单个平行接触的电阻。通过系统地改变接触长度，我们得到了碳纳米管和界面的电导率。纳米管之间的界面表现出介于热解石墨和单晶石墨之间的导电性。的阈值接触长度之间的接口和体积占主导地位的电输运的定量估计。
Interfacial resistance plays a critical role in the transport properties of nanomaterial-based assemblies. However, understanding of them remains limited due to the difficulty of experimental approaches. Here we report in situ measurements of the electrical resistance of a single parallel contact between carbon nanotubes. By varying the contact length systematically, we derive the electrical conductivities of carbon nanotubes and interfaces. The interface between nanotubes exhibits conductivity intermediate between those of pyrolytic and single-crystal graphite. The threshold contact length between interface- and bulk-dominant electrical transport is quantitatively estimated.