The enhancement of the thermoelectric performance in zigzag graphene nanoribbon by edge states

被引：14

作者：

Tan, Shihua ^{[1
,2
]}

Chen, Ke-Qiu ^{[1
]}

机构：

[1] Hunan Univ, Sch Phys & Elect, Dept Appl Phys, Changsha 410082, Hunan, Peoples R China

[2] Cent South Univ Forestry & Technol, Inst Math & Phys, Changsha 410004, Hunan, Peoples R China

来源：

CARBON | 2015年 / 94卷

基金：

中国国家自然科学基金;

关键词：

TRANSPORT;

D O I：

10.1016/j.carbon.2015.07.083

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The thermal, electrical and thermoelectric properties of zigzag graphene nanoribbon with gold atom chains at the edges have been analyzed carefully by first-principles calculation. The results indicate that, majority of the injected phonons will be scattered by the gold chains, while the electrons can transport smoothly due to the existence of the edge states. As a result, the thermoelectric effect can be greatly enhanced: the figure-of-merit will be over 1 at room temperature, and over 2 at 500 K. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：942 / 945

页数：4

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