Atomic-Scale Dynamic Mechanisms of Embedded MoS2 Wires

Ryu, Gyeong Hee; Jung, Gang Seob; Warner, Jamie H.

doi:10.1021/acsnano.4c11656

Title: Atomic-Scale Dynamic Mechanisms of Embedded MoS₂ Wires

Journal Article · 17 November 2024 · ACS Nano

DOI: https://doi.org/10.1021/acsnano.4c11656 · OSTI ID:2481225

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Gyeongsang National Univ., Jinju (Korea, Republic of)
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Univ. of Texas, Austin, TX (United States)

Nanowires composed of a 1:1 stoichiometry of transition metals and chalcogen ions can be fabricated from two-dimensional transition metal dichalcogenides (TMDs) by using electron beam irradiation. Wires fabricated through in situ experiments can be geometrically connected to TMD sheets in various ways, and their physical properties can vary accordingly. Understanding the structural transformation caused by electron beams is critical for designing wire-sheet structures for nanoelectronics. In this study, we report the behavior of nanowires formed inside a monolayer MoS₂ sheet by combining phase-contrast images and large-scale atomistic modeling. Here we investigate the effect of vacancies on the dynamic evolution of wires, such as rotations with different edge structures and breaking, by considering the interactions between MoS wires and MoS₂ nanosheets. The obtained insights can be applied to other monolayer TMDs to guide the behavior of TMD wires and fabricate favorable geometries for various applications.

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Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Compute and Data Environment for Science (CADES)

Sponsoring Organization:: National Research Foundation of Korea (NRF); USDOE; USDOE Laboratory Directed Research and Development (LDRD) Program

Grant/Contract Number:: AC05-00OR22725

OSTI ID:: 2481225

Journal Information:: ACS Nano, Journal Name: ACS Nano Journal Issue: 48 Vol. 18; ISSN 1936-0851

Publisher:: American Chemical Society (ACS)Copyright Statement

Country of Publication:: United States

Language:: English

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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
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Title: Atomic-Scale Dynamic Mechanisms of Embedded MoS2 Wires

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Title: Atomic-Scale Dynamic Mechanisms of Embedded MoS₂ Wires