Volume 13, Number 4, December 2020
|Page(s)||135 - 148|
|Published online||06 December 2021|
Ultrafast carrier dynamics in graphene and graphene nanostructures
Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
2 ICFO – Institut de Ciencies Fotoniques, Mediterranean Technology Park, Castelldefels, Barcelona, 08860 Spain
3 Institute of Physical and Theoretical Chemistry, Julius-Maximilian University, 97070 Würzburg, Germany
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In this paper we provide a comprehensive view on the ultrafast conduction dynamics in graphene and graphene nanostructures. We show that ultrafast conduction in graphene can be well understood within a simple thermodynamic picture, by taking into account the dynamical interplay between electron heating and cooling, with the driving electric field acting as a supplier of thermal energy to graphene electron population. At the same time, the conductive properties of graphene nanostructures, such as graphene nanoribbons (GNRs) and carbon nanotubes (CNTs), can be well explained within the concept typical for disordered materials, such as e.g. organic semiconductors - the conduction by the free charge experiencing long-range localization.
Key words: Terahertz spectroscopy / Graphene / Nanostructures / Conductivity / Charge transport properties
© The Authors 2020. Published by EDP Sciences on behalf of the University of Electronic Science and Technology of China.
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, except for commercial purposes, provided the original work is properly cited.
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