Skip to content.

TUD

search  |  internal  |  deutsch
Personal tools
TU Dresden » Faculty of Mechanical Science and Engineering » Institute for Materials Science » Chair of Materials Science and Nanotechnology

» presentations   » 2016.03.07




Strain engineering of thermal transport in 2D grain boundaries

Leonardo Medrano Sandonas, Rafael Gutierrez, Alessandro Pecchia, Gotthard Seifert, and Gianaurelio Cuniberti

DPG Frühjahrstagung der Sektion Kondensierte Materie (SKM)

2016.03.07; Regensburg, Germany

Grain boundaries (GBs) in two-dimensional materials have attracted great attention in recent years due to its unique physical properties. However, many questions are still unanswered about the influence of external factors on their thermal properties. Thus, we want to provide some insights in understanding the influence of strain on the thermal transport in 2D materials with grain boundaries. To do this, we employ Green’s functions technique combined with DFTB theory. Our main focuses are grain boundaries in novel two-dimensional materials like hBN, Phosphorene, and MoS2, which are potential candidates for developing novel approaches to nanoscale electronics and phononics. Among the GBs studied in the present work (5|7 and 4|8), 4|8 GB has the stronger influence on the thermal transport. Moreover, we have found an anomalous behavior of the thermal conductance after increasing the uniaxial strain. This trend is associated to the strain dependence of the bond length and the force constants of the material.



conference announcement (html)



people| research | teaching | links | internal | home

last modified: 2018.05.17 Do
author: webadmin

contact
Prof. Dr. Gianaurelio Cuniberti
secretariat:
Ms Sylvi Katzarow
phone: +49 (0)351 463-31420
fax: +49 (0)351 463-31422
office@nano.tu-dresden.de
postal address:
Institute for Materials Science
TU Dresden
01062 Dresden, Germany
visitors and courier address:
HAL building
TU Dresden
Hallwachsstr. 3
01069 Dresden, Germany
Max Bergmann Center
TU Dresden
Budapester Str. 27
01069 Dresden, Germany