Electrical conductivity of a single parallel contact between carbon nanotubes. Issue 32 (3rd August 2022)

• Record Type: Journal Article
• Authors: Hamasaki, Hiromu; Nagahama, Sougo; Hirahara, Kaori
• Is Part Of: Nanoscale. Volume 14:Issue 32(2022)
• Page Start: 11529
• Page End: 11534
• Publication Date: 2022-08-03
• Subjects: Nanoscience -- Periodicals; Nanotechnology -- Periodicals; 620.505
• DOI: 10.1039/d2nr04112j
• Languages: English
• ISSNs: 2040-3364

Abstract

Abstract : In situ measurements of the electrical resistance of a parallel contact between carbon nanotubes were performed. The electrical conductivities of individual nanotubes and the interface were derived by varying the contact length systematically. Abstract : 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.