Epitaxial Assembly and Spectroscopic Inspection of Core–Shell WS<sub>2</sub>@WSe<sub>2</sub> Nanotubes
- Author(s)
- Vojtech Kundrat, Emil Parth, Ramon Pinna Brito, Hila Shalom, Philip Immanuel, Jakub Zalesak, Lothar Houben, Anna Kossoy, Lena Yadgarov, Paola Ayala, Reshef Tenne
- Abstract
1D multiwall tungsten disulfide nanotubes were discovered more than three decades ago, and their large-scale fabrication has been worked out systematically over the years. Building on this knowledge, reports on the more complex core–shell nanotubular structures have emerged in recent years. In the present work, core–shell tungsten disulfide and tungsten diselenide nanotubes (WS2@WSe2 NTs) have been materialized through high-temperature selenidation of WS2 nanotubes and fine WO3 powder, yielding large quantities of epitaxially aligned heterostructures. Advanced high-resolution electron microscopy revealed the formation of complex heterointerfaces with well-defined atomic arrangements between the constituent phases. Optical characterization shows distinctive electronic properties arising from the heterostructure architecture, indicating strong interfacial coupling between the WS2 and WSe2 constituents. The unique electronic and structural characteristics of these nanotubes position them as promising candidates for enhanced photocatalytic applications and quantum device integration, where precise control over electronic states and charge transfer dynamics is critical.
- Organisation(s)
- Electronic Properties of Materials
- External organisation(s)
- Masaryk University, Weizmann Institute of Science, Ariel University, Paris-Lodron Universität Salzburg
- Journal
- Chemistry of Materials
- Volume
- 37
- Pages
- 5966–5973
- No. of pages
- 8
- ISSN
- 0897-4756
- DOI
- https://doi.org/10.1021/acs.chemmater.5c01314
- Publication date
- 07-2025
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 104011 Materials chemistry, 103042 Electron microscopy
- ASJC Scopus subject areas
- General Chemistry, General Chemical Engineering, Materials Chemistry
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/0d409874-fc1a-4ead-b01f-63bad2a21017