Structural, Electronic, and Thermal Properties of CdSnAs2

Structural, electrical, and thermal properties of CdSnAs2, with analyses from temperature-dependent transport properties over a large temperature range, are reported. Phase-pure microcrystalline powders were synthesized that were subsequently densified to a high-density homogeneous polycrystalline s...

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Bibliographic Details
Published in:Inorganic chemistry 2020-03, Vol.59 (5), p.3079-3084
Main Authors: Gunatilleke, Wilarachchige D. C. B, Hobbis, Dean, Poddig, Hagen, Tinkess, Austin, Beekman, Matt, Wang, Hsin, Wei, Kaya, Baumbach, Ryan E, Nolas, George S
Format: Article
Language:English
Subjects:
INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
materials
scattering
temperature dependence
thermoelectric materials
thermoelectrics
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Summary:Structural, electrical, and thermal properties of CdSnAs2, with analyses from temperature-dependent transport properties over a large temperature range, are reported. Phase-pure microcrystalline powders were synthesized that were subsequently densified to a high-density homogeneous polycrystalline specimen for this study. Temperature-dependent transport indicates n-type semiconducting behavior with a very high and nearly temperature independent mobility over the entire measured temperature range, attributed to the very small electron effective mass of this material. The Debye model was successfully applied to model the thermal conductivity and specific heat. This work contributes to the fundamental understanding of this material, providing further insight and allowing for investigations into altering this and related physical properties of these materials for technological applications.
ISSN:0020-1669
1520-510X
DOI:10.1021/acs.inorgchem.9b03424