Reversible thermoelectric nanomaterials

被引：320

作者：

Humphrey, TE ^{[1
]}

Linke, H

机构：

[1] Univ Wollongong, Wollongong, NSW 2522, Australia

[2] Univ New S Wales, Sch Phys, Sydney, NSW 2052, Australia

[3] Univ Oregon, Inst Mat Sci, Eugene, OR 97403 USA

[4] Univ Oregon, Dept Phys, Eugene, OR 97403 USA

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 94卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.94.096601

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Irreversible effects in thermoelectric materials limit their efficiency and economy for applications in power generation and refrigeration. While electron transport is unavoidably irreversible in bulk materials, here we derive conditions under which reversible diffusive electron transport can be achieved in nanostructured thermoelectric materials. We provide a fundamental thermodynamic explanation for why the optimum density of states in a thermoelectric material is a delta function and for why inhomogeneous doping and segmentation improve the thermoelectric figure of merit.

引用

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