High pressure synthesis of p-type Fe-substituted CoSb3 skutterudites

被引：13

作者：

Liu, Yadi ^{[1
]}

Li, Xiaohui ^{[1
]}

Zhang, Qian ^{[1
]}

Chen, Chen ^{[1
]}

Li, Jianghua ^{[1
]}

Zhang, Long ^{[1
]}

Yu, Dongli ^{[1
]}

Tian, Yongjun ^{[1
]}

Xu, Bo ^{[1
]}

机构：

[1] Yanshan Univ, State Key Lab Metastable Mat Sci & Technol, Qinhuangdao 066004, Hebei, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2016年 / 27卷 / 06期

基金：

美国国家科学基金会;

关键词：

TEMPERATURE THERMOELECTRIC PROPERTIES; TE-DOPED COSB3; TRANSPORT-PROPERTIES; PERFORMANCE;

D O I：

10.1007/s10854-016-4582-6

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Fe-substituted CoSb3 skutterudites were successfully synthesized with high pressure synthesis method. The composition, structure, and thermoelectric properties were investigated. Co(4-x)Fex(S)b(12) samples have the skutterudite structure of Im (3) over bar symmetry. The hole concentration increases with elevating Fe substitution level. Compared with those ambient-pressure synthesized Fe-substituted CoSb3 samples, our samples exhibit enhanced power factor and suppressed thermal conductivity which benefitted from high pressure. The optimal Co3.2Fe0.8Sb12 shows a peak ZT of 0.53 at 823 K, the highest value for Co-rich p-type skutterudites with single-element substitution. Current study on Co4-xFexSb12 provides a basis for further thermoelectric performance enhancement of Co-rich p-type skutterudites.

引用

页码：6433 / 6437

页数：5

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