Quantum Dot in Z-shaped Graphene Nanoribbon

Abstract

Stimulated by recent advances in isolating graphene, we discovered that quantum dot can be trapped in Z-shaped graphene nanoribbon junciton. The topological structure of the junction can confine electronic states completely. By varying junction length, we can alter the spatial confinement and the number of discrete levels within the junction. In addition, quantum dot can be realized regardless of substrate induced static disorder or irregular edges of the junction. This device can be used to easily design quantum dot devices. This platform can also be used to design zero-dimensional functional nanoscale electronic devices using graphene ribbons.

4 pages, 3 figures

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• Quantum computation with graphene nanoribbon
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• Electronic properties of zigzag, armchair and their hybrid quantum dots of graphene and boron-nitride with and without substitution: A DFT study
• The role of temperature on defect diffusion and nanoscale patterning in graphene
• Perfect Spin-filtering and Giant Magnetoresistance with Fe-terminated Graphene Nanoribbon
• Tuning Phononic and Electronic Contributions of Thermoelectric in defected S-Shape Graphene Nanoribbons
• Quantum Transport in Graphene Nanoribbons with Realistic Edges
• Coherent transport of armchair graphene constrictions
• Radiation-induced quantum interference in low-dimensional $n$-$p$ junctions
• Resonant enhancement in nanostructured thermoelectric performance via electronic thermal conductivity engineering
• Variable range of the RKKY interaction in edged graphene