Thermoelectric figure-of-merit under large temperature differences

被引：70

作者：

Min, G ^{[1
]}

Rowe, DM ^{[1
]}

Kontostavlakis, K ^{[1
]}

机构：

[1] Cardiff Univ, Sch Engn, Cardiff, S Glam, Wales

来源：

JOURNAL OF PHYSICS D-APPLIED PHYSICS | 2004年 / 37卷 / 08期

关键词：

Approximation theory - Bismuth alloys - Diamonds - Electric conductivity - Heat conduction - Seebeck effect - Thermal conductivity;

D O I：

10.1088/0022-3727/37/8/020

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The dimensionless thermoelectric figure-of-merit, ZT, of Bi2Te3 based alloys was investigated under a large temperature difference using a recently C, reported 'open/short circuit' measurement technique. It is shown that the measured ZT decreases with an increase in temperature difference. Theoretical analysis indicates that this dependence can be explained by taking into account the Thomson effect. An equation is obtained for a modified thermoelectric figure-of-merit which is valid for measurement over large temperature differences.

引用

页码：1301 / 1304

页数：4

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