The effect of Ag concentration on the structural, electrical and thermal transport behavior of Pb:Te:Ag:Se mixtures and improvement of thermoelectric performance via Cu doping
Capps J, Ma B, Drye T, Nucklos C, Lindsey S, Rhodes D, Zhang Q, Modic KA, Cawthorne S, Drymiotis F. 2011. The effect of Ag concentration on the structural, electrical and thermal transport behavior of Pb:Te:Ag:Se mixtures and improvement of thermoelectric performance via Cu doping. Journal of Alloys and Compounds. 509(5), 1544–1549.
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Journal Article
| Published
| English
Author
Capps, J.;
Ma, B.;
Drye, T.;
Nucklos, C.;
Lindsey, S.;
Rhodes, D.;
Zhang, Q.;
Modic, Kimberly AISTA ;
Cawthorne, S.;
Drymiotis, F.
Abstract
Pb, Te, Ag and Se, when reacted in a 1:1:x:1 (x = 1.9, 2.0, 2.01) molar ratio, form a two phase composite which consists of a phase which crystallizes in the fcc cubic PbSe structure and a phase that crystallizes in the Ag2Te structure. In this article, we demonstrate that by varying the Ag concentration, we can manipulate which variant of the Ag2Te structure stabilizes at room temperature (monoclinic α-Ag2Te or cubic β-Ag1.9Te) and can consequently manipulate the electrical and thermal transport behavior of the composite and hence the thermoelectric performance. Additionally, we show that Cu-doping results in an overall improvement in thermoelectric performance. Our results suggest that formation of composites is a viable path for achieving a phonon-glass-electron-crystal (PGEC) alloy.
Publishing Year
Date Published
2011-02-03
Journal Title
Journal of Alloys and Compounds
Volume
509
Issue
5
Page
1544-1549
ISSN
IST-REx-ID
Cite this
Capps J, Ma B, Drye T, et al. The effect of Ag concentration on the structural, electrical and thermal transport behavior of Pb:Te:Ag:Se mixtures and improvement of thermoelectric performance via Cu doping. Journal of Alloys and Compounds. 2011;509(5):1544-1549. doi:10.1016/j.jallcom.2010.10.187
Capps, J., Ma, B., Drye, T., Nucklos, C., Lindsey, S., Rhodes, D., … Drymiotis, F. (2011). The effect of Ag concentration on the structural, electrical and thermal transport behavior of Pb:Te:Ag:Se mixtures and improvement of thermoelectric performance via Cu doping. Journal of Alloys and Compounds. Elsevier. https://doi.org/10.1016/j.jallcom.2010.10.187
Capps, J., B. Ma, T. Drye, C. Nucklos, S. Lindsey, D. Rhodes, Q. Zhang, Kimberly A Modic, S. Cawthorne, and F. Drymiotis. “The Effect of Ag Concentration on the Structural, Electrical and Thermal Transport Behavior of Pb:Te:Ag:Se Mixtures and Improvement of Thermoelectric Performance via Cu Doping.” Journal of Alloys and Compounds. Elsevier, 2011. https://doi.org/10.1016/j.jallcom.2010.10.187.
J. Capps et al., “The effect of Ag concentration on the structural, electrical and thermal transport behavior of Pb:Te:Ag:Se mixtures and improvement of thermoelectric performance via Cu doping,” Journal of Alloys and Compounds, vol. 509, no. 5. Elsevier, pp. 1544–1549, 2011.
Capps J, Ma B, Drye T, Nucklos C, Lindsey S, Rhodes D, Zhang Q, Modic KA, Cawthorne S, Drymiotis F. 2011. The effect of Ag concentration on the structural, electrical and thermal transport behavior of Pb:Te:Ag:Se mixtures and improvement of thermoelectric performance via Cu doping. Journal of Alloys and Compounds. 509(5), 1544–1549.
Capps, J., et al. “The Effect of Ag Concentration on the Structural, Electrical and Thermal Transport Behavior of Pb:Te:Ag:Se Mixtures and Improvement of Thermoelectric Performance via Cu Doping.” Journal of Alloys and Compounds, vol. 509, no. 5, Elsevier, 2011, pp. 1544–49, doi:10.1016/j.jallcom.2010.10.187.