塞贝克系数
热电效应
材料科学
电阻率和电导率
热电材料
分析化学(期刊)
霍尔效应
大气温度范围
微晶
热导率
兴奋剂
衍射
热压
热力学
化学
光电子学
冶金
复合材料
光学
电气工程
工程类
物理
色谱法
作者
V. Kucek,Č. Drašar,J. Kašparová,T. Plecháček,J. Navrátil,M. Vlček,Ludvı́k Beneš
摘要
Polycrystalline samples of composition CuIn1−xHgxTe2 (x = 0–0.21) were synthesized from elements of 5N purity using a solid state reaction. The phase purity of the products was verified by X-ray diffraction. Samples for transport property measurements were prepared using hot-pressing. The samples were characterized by measurement of the electrical conductivity, Hall coefficient, Seebeck coefficient, and thermal conductivity over a temperature range of 300–675 K. All samples show p-type conductivity. We discuss the influence of Hg substitution on the free carrier concentration and thermoelectric performance. The investigation of the thermoelectric properties shows up to a 40% improvement of ZT in the temperature range of 300–600 K.
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