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Identifying Raman modes of Sb2Se3 and their symmetries using angle-resolved polarised Raman spectra

Fleck, N; Hobson, TDC; Savory, CN; Buckeridge, J; Veal, TD; Correia, MR; Scanlon, DO; ... Jäckel, F; + view all (2020) Identifying Raman modes of Sb2Se3 and their symmetries using angle-resolved polarised Raman spectra. Journal of Materials Chemistry A 10.1039/d0ta01783c. (In press). Green open access

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Abstract

The physical properties of antimony selenide (Sb2Se3) are highly anisotropic. Angle-resolved polarised Raman spectroscopy was employed to characterise oriented crystals and used in conjunction with group theory structural analysis to assign vibrational symmetries to the peaks observed in the Raman spectra. The phonon energies were corroborated via density functional theory (DFT) calculations. Furthermore, a straightforward method is proposed to verify the desirable (001) plane orientation of film growth for device applications via minimisation of the 155 cm−1 peak in the Raman spectrum.

Type: Article
Title: Identifying Raman modes of Sb2Se3 and their symmetries using angle-resolved polarised Raman spectra
Open access status: An open access version is available from UCL Discovery
DOI: 10.1039/d0ta01783c
Publisher version: https://doi.org/10.1039/d0ta01783c
Language: English
Additional information: This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. http://creativecommons.org/licenses/by/3.0/
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Chemistry
URI: https://discovery.ucl.ac.uk/id/eprint/10096488
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