Next generation of thermoelectric materials

G. S. Nolas, G. A. Slack, J. L. Cohn, S. B. Schujman

Research output: Contribution to conferencePaperpeer-review

21 Scopus citations


From the mid-1950s to the present the major design concepts for bulk thermoelectrics were those used by A.V. Ioffe. These were to select semiconducting compounds of heavy elements from the lower part of the periodic table and then to reduce the lattice thermal conductivity by forming mixed crystals. This approach led to the thermoelectrics based on Bi, PbTe and Bi2Te3. In this study we report on ongoing research of a new type of semiconducting material system with an open crystal lattice structure. The concept of a `pronon glass and an electron crystal' (PGEC) is at the heart of this investigation. Such materials possess electronic properties normally associated with good semiconductor single crystals and thermal conductivity normally associated with amorphous materials. The introduction of this concept to thermoelectrics is one of the most significant innovations in thermoelectrics in the last 30 years. We will report on transport properties measurements on some of these new materials, some of which possess ZT values higher than any new materials presently under investigation.

Original languageEnglish (US)
Number of pages4
StatePublished - Dec 1 1998
Externally publishedYes
EventProceedings of the 1998 17th International Conference on Thermoelectrics, ICT - Nagoya, Jpn
Duration: May 24 1998May 28 1998


OtherProceedings of the 1998 17th International Conference on Thermoelectrics, ICT
CityNagoya, Jpn

ASJC Scopus subject areas

  • Engineering(all)


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