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Combined EELS, EDX, and STEM investigations of Cu-induced nanostrucutures and thin surface layer phases

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Published/Copyright: February 1, 2022
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 96 Issue 8

Abstract

Surfaces of layered VSe2 crystals with self-assembled networks of nanostructures formed during the early stages of Cu deposition have been investigated by high-angle annular dark-field imaging in scanning transmission electron microscopy, energy-dispersive X-ray spectroscopy, and energy-loss near-edge structure measurements in electron energy-loss spectroscopy at high spatial resolutions. The investigations confirm that the nanostructures are elevated surface folds and that the deposited copper is rather uniformly distributed across the VSe2 surface mesh regions and the nanostructure regions. The electron energy loss near-edge structure of the L2.3 ionization edges depict that the electronic properties of Cu are modified in regard to metallic Cu, and that the electronic properties of V are modified in regard to VSe2 layered crystals while the ionization edges of Se are largely unaffected. The observations are consistent with results of structure analyses and suggest that different types of Cu-rich crystalline intercalation compounds form at the surfaces upon Cu deposition.

Keywords: Metal deposition; Self-assembled surface nanostructures; Layered chalcogenides; Electron energy loss spectroscopy; Scanning transmission electron microscopy
Prof. Dr. W. Jäger Technische Fakultät der Christian-Albrechts-Universität zu Kiel AG Mikrostrukturanalytik D-24103 Kiel, Germany Tel.: +49 431 880 6177 Fax: +49 431 880 6178

  1. We thank H. Haselier and H. Schroeder (Institute for Solid State Research, Research Center Jülich, Germany) for experimental support during metal depositions and L. Kipp and M. Skibowski (University Kiel) for providing the VSe2 substrate crystals. Financial support by the German Research Foundation (DFG contract FOR 353/1-2) is gratefully acknowledged.

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Received: 2005-01-31
Accepted: 2005-04-18
Published Online: 2022-02-01

© 2005 Carl Hanser Verlag, München

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https://doi.org/10.3139/ijmr-2005-0154
Keywords for this article
Metal deposition; Self-assembled surface nanostructures; Layered chalcogenides; Electron energy loss spectroscopy; Scanning transmission electron microscopy

Articles in the same Issue

  1. Frontmatter
  2. Articles Basic
  3. Diffusion in molybdenum disilicide
  4. Martensitic transformation, ductility, and shape-memory effect of polycrystalline Ni56Mn25 – xFexGa19 alloys
  5. Mechanical and electrical properties of Ti2SnC dispersion-strengthened copper
  6. Thermodynamic and phase relation study of the Ni–Ge –O system in the solid state
  7. Thermodynamic assessment of Mg–Al–Mn phase equilibria, focusing on Mg-rich alloys
  8. DSC study on the phase decomposition of an Al–Cu alloy occurring during annealing at 403 K
  9. Structure and thermal stability of a melt-quenched single-phase nanocrystalline Hf61Fe39 alloy
  10. Thermodynamic assessment of the ternary Cu–Pb–O system
  11. Combined EELS, EDX, and STEM investigations of Cu-induced nanostrucutures and thin surface layer phases
  12. Articles Applied
  13. Fatigue failure of titanium implants for mandibular reconstruction
  14. Solid state reaction mechanism for the synthesis of La1 – xSrxCoO3–δ (0.1 ≤ x ≤ 0.7)
  15. Dislocation structures in 16MND5 pressure vessel steel strained in uniaxial tension at –196 °C
  16. Microstructure of AZ91 alloy deformed by equal channel angular pressing
  17. The effect of copper on secondary phase precipitation in duplex stainless steel – a thermodynamic calculations approach
  18. Stretch-zone analysis by image processing for the evaluation of initiation fracture toughness of a HSLA steel
  19. Copper-lithium alloy produced by powder metallurgy procedures and its age-hardening response
  20. Effects of the local microstructures on the mechanical properties in FSWed joints of a 7075-T6 Al alloy
  21. Estimating ternary surface tension for systems with limited solubility
  22. Notifications/Mitteilungen
  23. Personal/Personelles
  24. News/Aktuelles
  25. Conferences/Konferenzen
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