Work

Enhanced Conductance Fluctuation by Quantum Confinement Effect in Graphene Nanoribbons

Year: 2010

Type: article

Abstract: Conductance fluctuation is usually unavoidable in graphene nanoribbons (GNR) due to the presence of disorder along its edges. By measuring the low-frequency noise in GNR devices, we find that the conductance fluctuation is strongly correlated with the density-of-states of GNR. In single-layer GNR, the gate-dependence of noise shows peaks whose positions quantitatively match the subband positions in the band structures of GNR. This correlation provides a robust mechanism to electrically probe the band structure of GNR, especially when the subband structures are smeared out in conductance measurement.

Source: Nano Letters

DOI: 10.1021/nl1025979

Authors: Guangyu Xu, Carlos M. Torres, Emil B. Song, Jianshi Tang, Jingwei Bai, Xiangfeng Duan, Yuegang Zhang, Kang L. Wang

Institutions: University of California, Los Angeles, Lawrence Berkeley National Laboratory, Molecular Foundry

Language: English

Topic: Graphene research and applications

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W2171313865

FWCI: 1.412

Cites: 45

Cited by: 29

Related to: 10