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

被引：88

作者：

Fleck, Nicole ^{[1
,2
]}

Hobson, Theodore D. C. ^{[1
,2
]}

Savory, Christopher N. ^{[3
,4
]}

Buckeridge, John ^{[5
]}

Veal, Tim D. ^{[1
,2
]}

Correia, Maria R. ^{[6
,7
]}

Scanlon, David O. ^{[3
,4
,8
]}

Durose, Ken ^{[1
,2
]}

Jackel, Frank ^{[1
,2
]}

机构：

[1] Univ Liverpool, Stephenson Inst Renewable Energy, Peach St, Liverpool L69 7ZF, Merseyside, England

[2] Univ Liverpool, Dept Phys, Peach St, Liverpool L69 7ZF, Merseyside, England

[3] UCL, Dept Chem, 20 Gordon St, London WC1H 0AJ, England

[4] UCL, Thomas Young Ctr, 20 Gordon St, London WC1H 0AJ, England

[5] London South Bank Univ, Sch Engn, London SE1 0AA, England

[6] Univ Aveiro, Dept Fis, P-3810193 Aveiro, Portugal

[7] Univ Aveiro, i3N, P-3810193 Aveiro, Portugal

[8] Diamond Light Source Ltd, Diamond House,Harwell Sci & Innovat Campus, Didcot OX11 0DE, Oxon, England

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2020年 / 8卷 / 17期

基金：

英国工程与自然科学研究理事会;

关键词：

INITIO MOLECULAR-DYNAMICS; TOTAL-ENERGY CALCULATIONS; THIN-FILM;

D O I：

10.1039/d0ta01783c

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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.

引用

页码：8337 / 8344

页数：8

共 43 条

[1]

[Anonymous], J OPEN SOURCE SOFTWA

[2] High pressure driven superconducting critical temperature tuning in Sb2Se3 topological insulator [J].