Assessing phase discrimination via the segmentation of an elemental energy dispersive X-ray spectroscopy map: A case study of Bi2Te3 and Bi2Te2S

BYRNES, Jacob, GAZDER, Azdiar and AMINORROAYA YAMINI, Sima (2018). Assessing phase discrimination via the segmentation of an elemental energy dispersive X-ray spectroscopy map: A case study of Bi2Te3 and Bi2Te2S. RSC Advances, 8 (14), 7457-7464.

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Official URL: http://pubs.rsc.org/en/content/articlelanding/2018...
Link to published version:: https://doi.org/10.1039/c7ra08594j

Abstract

The present case study critically assesses the efficacy of a previously proposed segmentation methodology as a means to discriminate phases via post-processing the image of an elemental map. In the Bi2Te2.5S0.5 multiphase compound, the reference spectra of the Bi2Te3 and Bi2Te2S phases are distinct enough to effectively distinguish two phases during map acquisition. Since the counts of the sulphur-K peak in the X-ray emission data are significantly higher for Bi2Te2S compared to Bi2Te3, the segmentation methodology exploits this variation and enables successful phase discrimination via post-processing the image of the elemental map.

Item Type: Article
Departments: Faculty of Science, Technology and Arts > Engineering and Mathematics
Identification Number: https://doi.org/10.1039/c7ra08594j
Depositing User: Sima Aminorroaya Yamini
Date Deposited: 21 Feb 2018 10:04
Last Modified: 22 Feb 2018 10:01
URI: http://shura.shu.ac.uk/id/eprint/18715

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