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MoxWx-1S2 Nanotubes for Advanced Field Emission Application
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SYSNO ASEP 0571727 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title MoxWx-1S2 Nanotubes for Advanced Field Emission Application Author(s) Pirker, Luka (UFCH-W) ORCID, RID
Lawrowski, R. (DE)
Schreiner, R. (DE)
Remškar, M. (SI)
Visić, B. (RS)Article number 2213869 Source Title Advanced Functional Materials - ISSN 1616-301X
Roč. 33, č. 15 (2023)Number of pages 8 s. Language eng - English Country DE - Germany Keywords field emission ; nanotubes ; single nanotube devices ; ternary van der Waals structures ; transition metal dichalcogenides Subject RIV CF - Physical ; Theoretical Chemistry OECD category Physical chemistry Method of publishing Open access Institutional support UFCH-W - RVO:61388955 UT WOS 000919116400001 EID SCOPUS 85146712858 DOI 10.1002/adfm.202213869 Annotation Transition metal dichalcogenide (TMDC) nanotubes complement the field of low-dimensional materials with their quasi-1D morphology and a wide set of intriguing properties. By introducing different transition metals into the crystal structure, their properties can be tailored for specific purpose and applications. Herein, the characterization and a subsequent preparation of single-nanotube field emission devices of MoxWx-1S2 nanotubes prepared via the chemical vapor transport reaction is presented. Energy-dispersive X-ray spectroscopy, Raman spectroscopy, and X-ray diffraction indicate that the molybdenum and tungsten atoms are randomly distributed within the crystal structure and that the material is highly crystalline. High resolution transmission electron microscopy and electron diffraction (ED) patterns further corroborate these findings. A detailed analysis of the ED patterns from an eight-layer nanotube reveal that the nanotubes grow in the 2H structure, with each shell consists of one bilayer. The work function of the nanotubes is lower than that of pure MoS2 and WS2 NTs, making them ideal candidates for field emission applications. Two devices with different geometrical setup are prepared and tested as field emitters, showing promising results for single nanotube field emission applications. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2024 Electronic address https://hdl.handle.net/11104/0347417
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