Isolation of Single-Wired Transition-Metal Monochalcogenides by Carbon Nanotubes

Nano Letters
Masataka NagataHisanori Shinohara

Abstract

The successful isolation of single layers from two-dimensional (2D) van der Waals (vdW)-layered materials has opened new frontiers in condensed matter physics and materials science. Their discovery and unique properties laid the foundation for exploring 1D counterparts. However, the isolation of 1D vdW-wired materials has thus far remained a challenge, and effective techniques are demanded. Here we report the facile synthesis of isolated transition-metal monochalcogenide MoTe nanowires by using carbon nanotubes (CNTs) as molds. Individual nanowires are perfectly separated by CNTs with a minimal interaction, enabling detailed characterization of the single wires. Transmission electron microscopy revealed unusual torsional motion of MoTe nanowires inside CNTs. Confinement of 1D vdW-wired materials to the nanotest tubes might open up possibilities for exploring unprecedented properties of the nanowires and their potential applications such as electromechanical switching devices.

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Citations

Jul 3, 2020·Nanoscale·Kyung-Hwan Jin, Feng Liu
Jun 6, 2020·Physical Review Letters·Thang PhamAlex Zettl
Dec 2, 2020·Journal of the American Chemical Society·Scott StonemeyerAlex Zettl
Dec 15, 2020·Nano Letters·Hong En LimYasumitsu Miyata
Oct 9, 2021·Physical Chemistry Chemical Physics : PCCP·Jia-Fang WuHai-Feng Lü

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