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http://dx.doi.org/10.6111/JKCGCT.2017.27.4.162

Synthesis and characterization of thermoelectric Zn1-xAgxSb compounds  

Kim, In-Ki (Department of Materials Science and Engineering, Hanseo University)
Oh, Han-Jun (Department of Materials Science and Engineering, Hanseo University)
Jang, Kyung-Wook (Department of Materials Science and Engineering, Hanseo University)
Abstract
Thermoelectric compounds of $Zn_{1-x}Ag_xSb$ 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 $Ag_3Sb$ 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.
Keywords
Thermoelectric; $Zn_{1-x}Ag_xSb$; Ag; ZnSb; Power factor;
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