Thermal conductiviy of type I and II clathrate compounds

G. S. Nolas, Joshua Cohn, M. Kaeser, T. M. Tritt

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Compounds with clathrate-hydrate type crystal lattice structures are currently of interest in thermoelectric materials research. This is due to the fact that semiconducting compounds can be synthesized with varying doping levels while possessing low, even 'glass-like', thermal conductivity. Up to now most of the work has focused on type I Si and Ge clathrates. Sn-clathrates however are viewed as having the greatest potential for thermoelectric cooling applications due to the larger mass of Sn and the expected small band-gap, as compared to Si and Ge clathrates. Transport properties on type I Sn-clathrates has only recently been reported [1-3]. In this report we present ongoing experimental research on both type I and II clathrates with an emphasis on the thermal transport of these novel materials. We present thermal conductivity data Si-Ge and Ge-Sn alloys as well as on a type II Ge clathrate for the first time, and compare these data to that of other clathrate compounds.

Original languageEnglish (US)
Title of host publicationProceedings - IEEE International Symposium on Circuits and Systems
Volume4
StatePublished - 2001
Externally publishedYes
EventIEEE International Symposium on Circuits and Systems (ISCAS 2001) - Sydney, NSW, Australia
Duration: May 6 2001May 9 2001

Other

OtherIEEE International Symposium on Circuits and Systems (ISCAS 2001)
CountryAustralia
CitySydney, NSW
Period5/6/015/9/01

Fingerprint

Thermal conductivity
Hydrates
Crystal lattices
Transport properties
Energy gap
Doping (additives)
Cooling
Glass
Hot Temperature

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

Cite this

Nolas, G. S., Cohn, J., Kaeser, M., & Tritt, T. M. (2001). Thermal conductiviy of type I and II clathrate compounds. In Proceedings - IEEE International Symposium on Circuits and Systems (Vol. 4)

Thermal conductiviy of type I and II clathrate compounds. / Nolas, G. S.; Cohn, Joshua; Kaeser, M.; Tritt, T. M.

Proceedings - IEEE International Symposium on Circuits and Systems. Vol. 4 2001.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Nolas, GS, Cohn, J, Kaeser, M & Tritt, TM 2001, Thermal conductiviy of type I and II clathrate compounds. in Proceedings - IEEE International Symposium on Circuits and Systems. vol. 4, IEEE International Symposium on Circuits and Systems (ISCAS 2001), Sydney, NSW, Australia, 5/6/01.
Nolas GS, Cohn J, Kaeser M, Tritt TM. Thermal conductiviy of type I and II clathrate compounds. In Proceedings - IEEE International Symposium on Circuits and Systems. Vol. 4. 2001
Nolas, G. S. ; Cohn, Joshua ; Kaeser, M. ; Tritt, T. M. / Thermal conductiviy of type I and II clathrate compounds. Proceedings - IEEE International Symposium on Circuits and Systems. Vol. 4 2001.
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