Thermoelectric properties of transverse transport in nanowire array structures

被引：9

作者：

Zhang Yi-Qun ^{[1
]}

Shi Yi ^{[1
]}

Pu Lin ^{[1
]}

Zhang Rong ^{[1
]}

Zheng You-Dou ^{[1
]}

机构：

[1] Nanjing Univ, Dept Phys, Key Lab Adv Photon & Elect Mat Jiangsu Prov, Nanjing 210093, Peoples R China

来源：

ACTA PHYSICA SINICA | 2008年 / 57卷 / 08期

关键词：

thermoelectric properties; nanowire arrays; Seebeck coefficient; lattice thermal conductivity;

D O I：

10.7498/aps.57.5198

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The electronic structures of nanowire-composite arrays are calculated theoretically in the framework of effective-mass envelope function theory, and various coefficients about electronic transport are obtained. At the same time, a closed-form expression based on boundary scattering theory for lattice thermal conductivity is presented. Then the thermoelectric properties of Si nanowire/Ge host material are investigated as function of the Fermi energy, wire diameter and separation between nanowire sidewalls. The results show that the ZT value of nanowire-composite call be significantly increased by carefully adjusting file correlative parameters of the structure.

引用

页码：5198 / 5204

页数：7

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