Zintl phase as thermoelectric materials: Synthesis, structure and properties of Yb5Al2Sb6

Iliya Todorov*, Duck Young Chung, Mercouri Kanatzidis

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

Abstract

We present the synthesis, crystal structure, spectroscopic properties, and electronic structure of a new member of the Zintl family, Yb5Al 2Sb6. The compound crystallizes in the Ba 5Al2Bi6 structure type. A preliminary assessment of its thermoelectric properties including electrical conductivity, thermopower, and thermal conductivity are reported. Moreover, investigations of solid solutions of this phase, doping effects and chemical modifications will be presented. The room temperature conductivity, thermopower and thermal conductivity of Yb5Al2Sb6/0.5Ge were 1100 S/cm, 20μ V/K, and 3.8 W/m K, respectively.

Original languageEnglish (US)
Pages (from-to)199-204
Number of pages6
JournalMaterials Research Society Symposium Proceedings
Volume1044
StatePublished - Oct 9 2008
EventThermoelectric Power Generation - Boston, MA, United States
Duration: Nov 26 2007Nov 29 2007

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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