Volume 16, Issue 5 2100624
Research Article

Synthesis, Crystal Structure, and Physical Properties of BaSnS2

Wilarachchige D. C. B. Gunatilleke

Wilarachchige D. C. B. Gunatilleke

Department of Physics, University of South Florida, Tampa, FL, 33620 USA

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Andrew F. May

Andrew F. May

Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831 USA

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Angela R. Hight Walker

Angela R. Hight Walker

Nanoscale Device Characterization Division, National Institute of Standards and Technology (NIST), Gaithersburg, MD, 20899 USA

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Adam J. Biacchi

Adam J. Biacchi

Nanoscale Device Characterization Division, National Institute of Standards and Technology (NIST), Gaithersburg, MD, 20899 USA

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George S. Nolas

Corresponding Author

George S. Nolas

Department of Physics, University of South Florida, Tampa, FL, 33620 USA

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First published: 11 February 2022

Abstract

Phase-pure BaSnS2, with space group P21/c, is synthesized, and the structural and physical properties are investigated. Thermal properties and optical measurements are reported for the first time. The Debye temperature and Sommerfeld coefficient are obtained from temperature-dependent heat capacity measurements, the latter indicating that BaSnS2 is an electrical insulator. A direct bandgap of 2.4 eV is obtained from diffuse reflectance and photoluminescence spectroscopy. The findings herein lay the foundation for understanding the physical properties of this material and are part of a continuing effort to investigate previously unexplored ternary chalcogenides.

Conflict of Interest

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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