摘要
采用真空熔炼和烧结的方法制备了新型热电材料尽β-Zn4Sb3。X射线衍射分析表明样品为单相。2种样品从室温到723K温度范围内的电学性能测量表明,β-Zn4Sb3在500K~650K时具有较高的功率因子,真空熔炼样品的性能要优于烧结样品,其功率因子在 623K时达到最大值 3.9μW.cm-1.K-2。结果表明,β-Zn4Sb3在热电转换领域有潜在的应用前景。
Samples of thermoelectric material β-Zn4Sb3 were prepared by vacuum melting and sintering. X-ray analysis reveals that single-phased β-Zn4Sb3 has been obtained. Transport properties of samples were measured between room temperature and 723 K. The experimental results show that the melted β-Zn4Sb3 has high power factor in the 500K-650K temperature range, compared to the sintered one, and a maximum value of about 3.9-μW.cm-1.K-2 is achieved at 623K. This value is comparable with the p-type state-of-the-art thermoelectric materials such as Bi2Te3-based alloys. The β-Zn4Sb3 with good performance is very promising for thermoelectric applications.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2001年第3期187-189,共3页
Rare Metal Materials and Engineering
基金
家自然科学基金资助项目(59971044)