Thermoelectric Properties of the Quasi-Binary MnSi1.73–FeSi2 System

Yatir Sadia, Naor Madar, Ilan Kaler, Yaniv Gelbstein

Research output: Contribution to journalArticlepeer-review

69 Scopus citations


The higher manganese silicides (HMS) are regarded as very attractive p-type thermoelectric materials for direct conversion of heat to electricity. To compete with other thermodynamic engines (e.g. the Stirling and Rankine cycles), however, the thermoelectric figure of merit of such silicides must be improved. HMS follow a complicated solidification reaction on cooling from the melt, which leads to formation of undesired secondary phases. Furthermore, the electronic carrier concentration of HMS is much higher than the optimum for thermoelectric applications and should be compensated by introduction of doping agents. In this research, the electronic donor action associated with substitution of HMS by FeSi2 was investigated. The effects of excess Si on phase distribution and thermoelectric properties are also discussed in detail.

Original languageEnglish
Pages (from-to)1637-1643
Number of pages7
JournalJournal of Electronic Materials
Issue number6
StatePublished - 1 Jun 2015


  • FeSi
  • HMS
  • Silicides
  • thermoelectric

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering
  • Materials Chemistry


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