Optimization of the thermoelectric properties of Ba8Ga16Ge30

被引：77

作者：

Martin, J. ^{[1
]}

Wang, H. ^{[2
]}

Nolas, G. S. ^{[1
]}

机构：

[1] Univ S Florida, Dept Phys, Tampa, FL 33620 USA

[2] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA

来源：

APPLIED PHYSICS LETTERS | 2008年 / 92卷 / 22期

关键词：

D O I：

10.1063/1.2939438

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Polycrystalline Ba8Ga16Ge30 clathrates with a systematic variation in the Ga:Ge stoichiometry were prepared to investigate the thermoelectric properties as a function of carrier concentration. Their corresponding transport properties were evaluated to identify the optimal carrier concentration for high temperature thermoelectric performance. These polycrystalline specimens demonstrate thermoelectric properties comparable to those obtained in single-crystal Ba8Ga16Ge30, confirming that polycrystalline clathrates can be optimized for high temperature thermoelectric applications. (C) 2008 American Institute of Physics.

引用

页数：3

共 14 条

[1]

Christensen M, 2006, ICT'06: XXV INTERNATIONAL CONFERENCE ON THERMOELECTRICS, PROCEEDINGS, P40

[2] Glasslike heat conduction in high-mobility crystalline semiconductors [J].