Issue 33, 2020

Efficient growth and characterization of one-dimensional transition metal tellurides inside carbon nanotubes

Abstract

Atomically thin one-dimensional (1D) van der Waals wires of transition metal monochalocogenides (TMMs) have been anticipated as promising building blocks for integrated nanoelectronics. While reliable production of TMM nanowires has eluded scientists over the past few decades, we finally demonstrated a bottom-up fabrication of MoTe nanowires inside carbon nanotubes (CNTs). Still, the current synthesis method is based on vacuum annealing of reactive MoTe2, and limits access to a variety of TMMs. Here we report an expanded framework for high-yield synthesis of the 1D tellurides including WTe, an previously unknown family of TMMs. Experimental and theoretical analyses revealed that the choice of suitable metal oxides as a precursor provides a useful yield for their characterization. These TMM nanowires exhibit a significant optical absorption in the visible-light region. More important, electronic properties of CNTs can be tuned by encapsulating different TMM nanowires.

Graphical abstract: Efficient growth and characterization of one-dimensional transition metal tellurides inside carbon nanotubes

Supplementary files

Article information

Article type
Communication
Submitted
21 אפר 2020
Accepted
22 מאי 2020
First published
03 יונ 2020

Nanoscale, 2020,12, 17185-17190

Author version available

Efficient growth and characterization of one-dimensional transition metal tellurides inside carbon nanotubes

N. Kanda, Y. Nakanishi, D. Liu, Z. Liu, T. Inoue, Y. Miyata, D. Tománek and H. Shinohara, Nanoscale, 2020, 12, 17185 DOI: 10.1039/D0NR03129A

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