Scanning tunneling microscopy investigation of growth of self-assembled indium and aluminum nanostructures on inert substrates

The growth and surface morphology of indium and aluminum nanostructures on highly oriented pyrolytic graphite (HOPG) and molybdenum disulphide (MoS 2) surfaces were investigated using scanning tunneling microscopy in ultra-high vacuum. Mostly triangular and hexagonal In islands with (111) orientatio...

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Veröffentlicht in:Thin solid films 2009-06, Vol.517 (16), p.4540-4547
Hauptverfasser: Kushvaha, S.S., Xu, H., Xiao, W., Zhang, H.L., Wee, A.T.S., Wang, X.-S.
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container_end_page 4547
container_issue 16
container_start_page 4540
container_title Thin solid films
container_volume 517
creator Kushvaha, S.S.
Xu, H.
Xiao, W.
Zhang, H.L.
Wee, A.T.S.
Wang, X.-S.
description The growth and surface morphology of indium and aluminum nanostructures on highly oriented pyrolytic graphite (HOPG) and molybdenum disulphide (MoS 2) surfaces were investigated using scanning tunneling microscopy in ultra-high vacuum. Mostly triangular and hexagonal In islands with (111) orientation were obtained along the steps of HOPG at room temperature (RT). Triangular, round-shape and large irregular In islands were found on MoS 2 surfaces at different growth conditions. Al island chains as well as isolated triangular islands were found on HOPG whereas nanoparticles and ramified Al islands were obtained on MoS 2 at RT. The shapes of these self-assembled metal nanostructures were controlled by varying growth conditions. The different shapes of nanostructures on these inert substrates can be explained in terms of differences in energetic and kinetic properties of atoms and clusters of each elements as well as the nature of substrates.
doi_str_mv 10.1016/j.tsf.2008.12.034
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subjects Aluminum
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Fullerenes and related materials
diamonds, graphite
Graphite
Indium
Materials science
Methods of deposition of films and coatings
film growth and epitaxy
MoS 2
Nanoscale materials and structures: fabrication and characterization
Nucleation and growth
Other topics in nanoscale materials and structures
Physics
Scanning tunneling microscopy
Self-assembly
Specific materials
Theory and models of film growth
title Scanning tunneling microscopy investigation of growth of self-assembled indium and aluminum nanostructures on inert substrates
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