Evaporation-condensation effects on the thermoelectric performance of PbTe-based couples

Yatir Sadia, Dana Ben-Ayoun, Yaniv Gelbstein

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

In thermoelectric (TE) generators, Carnot efficiency maximization, by increasing the hot side temperature, is required for maximizing the heat to electricity energy conversion. Yet, volatile species sublimation, apparent in many TE material classes including tellurides, selenides, sulfides, silicides and more, limits the hot side temperature to a certain level, depending on the specific composition. In the current research, the TE performance of a PbTe-based couple subjected to a large temperature difference of an extreme hot side temperature of 600 °C and cold side temperature of 60 °C for 456 h was investigated both experimentally and theoretically and was correlated to evaporation-condensation effects in the vicinity of the hot-side temperature. Only moderate degradation of the maximal electrical power and efficiency was observed showing the promising potential of employing of such couples in practical TE applications.

Original languageEnglish
Pages (from-to)19326-19333
Number of pages8
JournalPhysical Chemistry Chemical Physics
Volume19
Issue number29
DOIs
StatePublished - 1 Jan 2017

ASJC Scopus subject areas

  • Physics and Astronomy (all)
  • Physical and Theoretical Chemistry

Fingerprint

Dive into the research topics of 'Evaporation-condensation effects on the thermoelectric performance of PbTe-based couples'. Together they form a unique fingerprint.

Cite this