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Issue 17, 2020
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Identifying Raman modes of Sb2Se3 and their symmetries using angle-resolved polarised Raman spectra

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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.

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

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Article information


Submitted
14 Feb 2020
Accepted
08 Apr 2020
First published
15 Apr 2020

This article is Open Access

J. Mater. Chem. A, 2020,8, 8337-8344
Article type
Paper

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

N. Fleck, T. D. C. Hobson, C. N. Savory, J. Buckeridge, T. D. Veal, M. R. Correia, D. O. Scanlon, K. Durose and F. Jäckel, J. Mater. Chem. A, 2020, 8, 8337
DOI: 10.1039/D0TA01783C

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