High-performance planar nanoscale dielectric capacitors

Abstract

We propose a model for planar nanoscale dielectric capacitor consisting of a single layer, insulating hexagonal boron nitride (BN) stripe placed between two metallic graphene stripes, all forming commensurately a single atomic plane. First-principles density functional calculations on these nanoscale capacitors for different levels of charging and different widths of graphene - BN stripes mark high gravimetric capacitance values, which are comparable to those of supercapacitors made from other carbon based materials. Present nanocapacitor model allows the fabrication of series, parallel and mixed combinations which offer potential applications in 2D flexible nanoelectronics, energy storage and heat-pressure sensing systems.

Published version in PRB

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Cited by in corpus (4)

• Band Alignment of 2D Semiconductors for Designing Heterostructures with Momentum Space Matching
• Understanding the pseudocapacitance of RuO2 from joint density functional theory
• Large energy storage efficiency of the dielectric layer of graphene nanocapacitors
• I-V Characteristics of Graphene Nanoribbon/h-BN Heterojunctions and Resonant Tunneling