High Electron Mobility and Disorder Induced by Silver Ion Migration Lead to Good Thermoelectric Performance in the Argyrodite Ag8SiSe6

Barbara K. Heep, Kai S. Weldert, Yasar Krysiak, Tristan W. Day, Wolfgang G. Zeier, Ute Kolb, Gerald Jeffrey Snyder*, Wolfgang Tremel

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

28 Scopus citations

Abstract

Superionic chalcopyrites have recently attracted interest in their use as potential thermoelectric materials because of extraordinary low thermal conductivities. To overcome long-term stability issues in thermoelectric generators using superionic materials at evaluated temperatures, materials need to be found that show good thermoelectric performance at moderate temperatures. Here, we present the structural and thermoelectric properties of the argyrodite Ag8SiSe6, which exhibits promising thermoelectric performance close to room temperature.

Original languageEnglish (US)
Pages (from-to)4833-4839
Number of pages7
JournalChemistry of Materials
Volume29
Issue number11
DOIs
StatePublished - Jun 13 2017

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Chemistry

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