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Synthesis and characterization of thermoelectric Zn1−xAgxSb compounds

  • Journal of the Korean Crystal Growth and Crystal Technology
  • Abbr : J. Korean Cryst. Growth Cryst. Technol.
  • 2017, 27(4), pp.162-166
  • DOI : 10.6111/JKCGCT.2017.27.4.162
  • Publisher : The Korea Association Of Crystal Growth, Inc.
  • Research Area : Engineering > Materials Science and Engineering
  • Published : August 31, 2017

Kim In Ki 1 Han-Jun Oh 1 Kyung Wook Jang 1

1한서대학교

Accredited

ABSTRACT

Thermoelectric compounds of Zn1−xAgxSb with x = 0~0.2 were prepared by vacuum melting and quenching process and their crystal phases and thermoelectric properties were examined. It was found that free metallic Sb phases were formed in the compound with x = 0.05, leading to increasing the electrical conductivities. The power factors were significantly affected by the electrical conductivity rather than Seebeck coefficient. When x > 0.05, the peak intensities of Ag3Sb phases in XRD patterns were increased and those of free Sb phases were weakened. These changes of second phases resulted in decreasing the electrical conductivities and the power factors and became more obvious in the compound with x = 0.2.

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