Probing the chemical and electronic properties of the core-shell architecture of transition metal trisulfide nanoribbons

M. O. King, M. Popland, S. J. Denholme, D. H. Gregory, D. A. MacLaren, M. Kadodwala

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Ultraviolet and X-ray photoelectron spectroscopies are used to probe the chemical and electronic structure of an amorphous, 2-20 nm-thick shell that encases the crystalline core in core-shell nanoribbons of TaS 3. The shell is chemically heterogeneous, containing elemental sulfur and a with a notable (S 2) 2- deficiency over the crystalline TaS 3 core. We find nanoribbon stability to be substrate-dependent; whilst the ribbons are stable on the native oxide of a silicon surface, mass transport of sulfur species between the amorphous shell and a gold substrate leads to a significant change in the electronic properties of the nanomaterials. Our observations may have general implications for the incorporation of nanostructured transition metal chalcogenides into electronic devices.

Original languageEnglish
Pages (from-to)607-612
Number of pages6
JournalNanoscale
Volume4
Issue number2
DOIs
Publication statusPublished - Jan 21 2012

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

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