Electron Transport in Disordered Graphene Nanoribbons

Abstract

We report an electron transport study of lithographically fabricated graphene nanoribbons of various widths and lengths at different temperatures. At the charge neutrality point, a length-independent transport gap forms whose size is inversely proportional to the width. In this gap, electron is localized, and charge transport exhibits a transition between simple thermally activated behavior at higher temperatures and a variable range hopping at lower temperatures. By varying the geometric capacitance through the addition of top gates, we find that charging effects constitute a significant portion of the activation energy.

4 pages, 4 figures

References in corpus (16)

• The electronic properties of graphene
• Energy Band Gap Engineering of Graphene Nanoribbons
• Energy Gaps in Graphene Nanoribbons
• Chaotic Dirac billiard in graphene quantum dots
• Graphene Nano-Ribbon Electronics
• Electronic States of Graphene Nanoribbons
• Peculiar Width Dependence of the Electronic Property of Carbon Nanoribbons
• Energy gaps in etched graphene nanoribbons
• Conductance quantization and transport gap in disordered graphene nanoribbons
• Edge disorder induced Anderson localization and conduction gap in graphene nanoribbons
• Coulomb blockade in graphene nanoribbons
• Quantum dot behavior in graphene nanoconstrictions
• Transport gap in side-gated graphene constrictions
• Variable-range hopping in quasi-one-dimensional electron crystals
• Density inhomogeneity driven percolation metal-insulator transition and dimensional crossover in graphene nanoribbons
• Numerical studies of variable-range hopping in one-dimensional systems

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