High Thermoelectric Figure of Merit and Nanostructuring in Bulk p‐type Na_1−<i>x</i>Pb_<i>m</i>Sb_<i>y</i>Te_<i>m</i>+2

Abstract

Worthy of merit: The new class of nanostructured p-type thermoelectrics Na1−xPbmSbyTem+2 is reported. The exceptionally high thermoelectric figures of merit ZT of these materials (see graph), which exceed those of the state-of-the-art materials PbTe and (GeTe)1−x((Ag2Te)1−y(Sb2Te3)y)x (TAGS), derive from their very low lattice thermal conductivities. Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2002/2006/z600865_s.pdf or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.