High-performance planar nanoscale dielectric capacitors
Author
Özçelik, V. O.
Çıracı, Salim
Date
2015Source Title
Physical Review B - Condensed Matter and Materials Physics
Print ISSN
1098-0121
Publisher
American Physical Society
Volume
91
Issue
19
Pages
195445-1 - 195445-5
Language
English
Type
ArticleItem Usage Stats
138
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Abstract
We propose a model for planar nanoscale dielectric capacitors 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 models allow the fabrication of series, parallel, and mixed combinations which offer potential applications in two-dimensional flexible nanoelectronics, energy storage, and heat-pressure sensing systems.