Tunable ballistic thermal conductance of electrons in strained graphene nanoribbons

被引：25
作者：
Peng, Xiao-Fang [1 ,2 ]
Chen, Ke-Qiu [3 ]
Wang, Xin-Jun [1 ]
Tan, Shi-Hua [1 ]
机构：
[1] Cent South Univ Forestry & Technol, Inst Math & Phys, Changsha 410004, Hunan, Peoples R China
[2] Changsha Univ Sci & Technol, Hunan Prov Higher Educ Key Lab Modeling & Monitor, Changsha, Hunan, Peoples R China
[3] Hunan Univ, Dept Appl Phys, Changsha 410082, Hunan, Peoples R China
来源：
CARBON | 2016年 / 100卷
基金：
中国国家自然科学基金;
关键词：
EDGE-STATE; TRANSPORT; ZIGZAG;
D O I：
10.1016/j.carbon.2015.12.093
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 transport properties of electrons in graphene nanoribbon (GNR) subjected to strain fields are studied by non-equilibrium Green's function approach. The results show that the stretching of the carbon-carbon bond in strained GNR can enhance the ballistic thermal conductance of electrons. The enhancement originates from that the change of C-C bond length can modulate the nearest-neighbour pi-orbital overlap and reduce the threshold energies of electron transport modes. A brief analysis of these results is given. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：36 / 41
页数：6
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