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date: 09 December 2019

Abstract and Keywords

This article discusses the selective self-assembly of semi-metal straight and branched nanorods on inert substrates. In particular, it describes antimony (Sb) nanorods and bismuth (Bi) nanobelts on inert substrates by physical vapor deposition in vacuum without using any catalyst and nanoscale template. After describing the experimental and drift correction procedures, the article reviews previous studies of semi-metal growth on inert substrates. It then measures the surface morphology and atomic structures of self-assembled Sb nanorods and Bi nanobelts using an in-situ scanning tunnelling microscope (STM) in ultrahigh vacuum (UHV). Based on these STM data, a mechanism for the self-assembly of straight and branched semi-metal nanorods is proposed.

Keywords: self-assembly, inert substrates, antimony, bismuth, nanobelts, physical vapor deposition, semi-metal growth, surface morphology, atomic structure, semi-metal nanorods

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