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Physical properties of madocite: A quaternary chalcogenide with very low thermal conductivity

Published

Author(s)

Kaya Wei, Joshua B. Martin, Satofumi Maruyama, Lukasz Wojtas, Takao Mori, George S. Nolas

Abstract

The madocite Pb17(Sb0.75As0.25)16S41 was synthesized by reaction of binary compounds and densified using hot pressing. The optical band-gap, thermal stability, and temperature-dependent heat capacity and thermal conductivity are reported for the first time. The thermal properties are evaluated using the Debye model. The findings in this work lay the foundation for a more detailed understanding of the physical properties of this material, and is part of the continuing effort in investigating materials with new compositions that possess low thermal conductivity for potential low-cost thermal barrier coating and energy-related applications.
Citation
Journal of Solid State Chemistry

Keywords

madocite, chalcogenide, thermal conductivity, polaron hoping

Citation

Wei, K. , Martin, J. , Maruyama, S. , Wojtas, L. , Mori, T. and Nolas, G. (2017), Physical properties of madocite: A quaternary chalcogenide with very low thermal conductivity, Journal of Solid State Chemistry, [online], https://doi.org/10.1016/j.jssc.2017.04.007 (Accessed April 16, 2024)
Created April 25, 2017, Updated October 12, 2022