Band gap temperature-dependence and exciton-like state in copper antimony sulphide, CuSbS2

Band gap temperature-dependence and exciton-like state in copper antimony sulphide, CuSbS2

The temperature-dependence of the band gap of the proposed photovoltaic absorber copper antimony sulphide (CuSbS2) has been studied by Fourier-transform infrared spectroscopy. The direct gap rises from 1.608 to 1.694 eV between 300 and 4.2 K. Below 200 K an exciton-like feature develops above the ab...

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Bibliographic Details
Main Authors: Max Birkett, Christopher N. Savory, Mohana K. Rajpalke, Wojciech M. Linhart, Thomas J. Whittles, James T. Gibbon, Adam W. Welch, Ivona Z. Mitrovic, Andriy Zakutayev, David O. Scanlon, Tim D. Veal
Format: Article
Language:English
Published: AIP Publishing LLC 2018-08-01
Series:APL Materials
Online Access:http://dx.doi.org/10.1063/1.5030207

Internet

http://dx.doi.org/10.1063/1.5030207

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