Edge effect on resistance scaling rules in graphene nanostructures
Mesoscale and Nanoscale Physics
2011-02-15 v1
Abstract
We report an experimental investigation of the edge effect on the room-temperature transport in graphene nanoribbon and graphene sheet (both single-layer and bilayer). By measuring the resistance scaling behaviors at both low and high carrier densities, we show that the transport of single-layer nanoribbons lies in a strong localization regime, which can be attributed to an edge effect. We find that this edge effect can be weakened by enlarging the width, decreasing the carrier densities or adding an extra layer. From graphene nanoribbon to graphene sheet, the data show a dimensional crossover of the transport regimes possibly due to the drastic change of the edge effect.
Cite
@article{arxiv.1102.2681,
title = {Edge effect on resistance scaling rules in graphene nanostructures},
author = {Guangyu Xu and Carlos M. Torres and Jianshi Tang and Jingwei Bai and Emil B. Song and Yu Huang and Xiangfeng Duan and Yuegang Zhang and Kang L. Wang},
journal= {arXiv preprint arXiv:1102.2681},
year = {2011}
}
Comments
Accepted by Nano Letters