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説明:

This study demonstrates metallic NbS₂-based one-dimensional van der Waals (vdW) heterostructures synthesized via a modified NaCl-assisted chemical vapor deposition method. Employing a “remote salt” strategy enabled precise NaCl supply control, yielding high-quality coaxial NbS₂ nanotubes on SWCNT–BNNT templates and allowing morphology tuning from 1D nanotubes to suspended 2D flakes. HRTEM and STEM confirmed crystalline NbS₂ nanotubes with a bilayer preference, unlike the monolayer-dominated behavior of semiconducting dichalcogenides. Optical analyses (UV–vis–NIR, FTIR) verified metallicity, while Raman studies showed faster ambient degradation of 1D NbS₂. Density functional theory (DFT) calculations revealed that interlayer charge transfer and Coulomb interactions stabilize bilayer nanotubes. These findings establish a framework for synthesizing metallic 1D vdW heterostructures and elucidating their stabilization mechanisms.

権利情報:

• In Copyright
  

  This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Nano, copyright © 2025 American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acsnano.5c11180.

キーワード: one dimensional materials, hetetrostructures

刊行年月日: 2025-09-16

出版者: American Chemical Society (ACS)

掲載誌:

• ACS Nano (ISSN: 19360851) vol. 19 issue. 36 p. 32800-32809

研究助成金:

• National Key Research and Development Program of China 2023YFE0101300
• National Key Research and Development Program of China 2024YFA1409600
• Core Research for Evolutional Science and Technology JPMJCR20B5
• Key Research and Development Program of Zhejiang Province 2022R01001
• Japan Society for the Promotion of Science JP21KK0087
• Japan Society for the Promotion of Science JP23H00174
• Japan Society for the Promotion of Science JP23H05443
• Japan Society for the Promotion of Science S23084
• Advanced Research Infrastructure for Materials and Nanotechnology in Japan

原稿種別: 著者最終稿 (Accepted manuscript)

MDR DOI: https://doi.org/10.48505/nims.6075

公開URL: https://doi.org/10.1021/acsnano.5c11180

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更新時刻: 2026-04-30 12:01:11 +0900

MDRでの公開時刻: 2026-09-04 08:25:02 +0900