Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
11026616 | Materials Letters | 2019 | 11 Pages |
Abstract
By using molecular dynamics simulations, we have studied the thermal rectification in double-layered Graphene-carbon nanotube (DGN-DWCNT) junctions. It is found that DGN-DWCNT junctions exhibit significant thermal rectification under both large and small thermal bias. Even under a small thermal bias |Î|â¯=â¯0.1, a rectification ratio as high as 300.6% can be achieved. The influences of the geometric parameters on the thermal rectification of the DGN-DWCNT junctions are discussed, and the underlying mechanism of the significant thermal rectification is explored. These results open a door in the applicability of DGN-DWCNT junctions and their based pillared graphene system in nanoscale engineering of thermal transport devices.
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Xueming Yang, Jiangxin Xu, Sihan Wu, Dapeng Yu, Bingyang Cao,