Thermoelectric properties of hot-pressed Zn4Sb3−xTex
Thermoelectric properties of hot-pressed Zn4Sb3−xTex
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DOI：
10.1016/j.jallcom.2009.06.145
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发表时间：
2009-11
影响因子：
6.2
通讯作者：
W. Li;Limei Zhou;Yali Li;Jun Jiang;Gaojie Xu
中科院分区：
文献类型：
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作者：
W. Li;Limei Zhou;Yali Li;Jun Jiang;Gaojie Xu
采用真空熔炼和热压烧结的方法制备了Zn 4Sb 3 −xTex（x=0.02-0.08）系列样品，XRD分析表明，所有样品均为单相β-Zn 4Sb 3。在300- 700 K的温度范围内测量了电导率和Seebeck系数，显示p型导电。热电优值（ZT）随着Te含量的增加而增加。Zn4.08Sb3和Zn4Sb2.92Te0.08在673 K时的ZT值分别为0.8和1.0。
A series of samples have been fabricated through vacuum melting method followed by hot-pressing for Zn4Sb3−xTex(x=0.02–0.08), XRD patterns indicated that all the samples were single-phased β-Zn4Sb3. Electrical conductivity and Seebeck coefficient were evaluated in the temperature range of 300–700K, showing p-type conduction. The thermoelectric figure of merit (ZT) was increased with the increase of Te content. ZT values of 0.8 and 1.0 were obtained at 673K for Zn4.08Sb3and Zn4Sb2.92Te0.08, respectively.