The Thermoelectric Properties and Solubility Limit of CuFeS2(1−x)Se2x

Winston D. Carr, Donald T. Morelli

Research output: Contribution to journalArticle

  • 4 Citations

Abstract

CuFeS2 is an earth-abundant material with a potential for use in thermoelectric power generation. It is an n-type semiconductor with a small band gap, a large thermopower, and a low electrical resistivity. Previous studies have focused on the electrical properties and doping the material, to some success. In this study, we investigate the effects of selenium substitution on the sulfur site in an attempt to lower thermal conductivity while maintaining good electrical properties. Our results shows that selenium substitution is an effective method of improving zT through a large increase in power factor, and works well for reducing thermal conductivity at room temperature, but is not as effective in this regard at higher temperatures.

LanguageEnglish (US)
Pages1346-1350
Number of pages5
JournalJournal of Electronic Materials
Volume45
Issue number3
DOIs
StatePublished - Mar 1 2016

Profile

Thermoelectric power
Selenium
selenium
Thermal conductivity
Electric properties
Substitution reactions
thermal conductivity
thermoelectric power generation
solubility
Solubility
electrical properties
substitutes
n-type semiconductors
Sulfur
Power generation
Energy gap
sulfur
Earth (planet)
Doping (additives)
Semiconductor materials

Keywords

  • chalcopyrite
  • copper-based
  • earth-abundant
  • Thermoelectrics

ASJC Scopus subject areas

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

Cite this

The Thermoelectric Properties and Solubility Limit of CuFeS2(1−x)Se2x . / Carr, Winston D.; Morelli, Donald T.

In: Journal of Electronic Materials, Vol. 45, No. 3, 01.03.2016, p. 1346-1350.

Research output: Contribution to journalArticle

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