In:
Scientific Reports, Springer Science and Business Media LLC, Vol. 5, No. 1 ( 2015-11-04)
Abstract:
Graphene heterostructures are of considerable interest as a new class of electronic devices with exceptional performance in a broad range of applications has been realized. Here, we propose a graphene-embedded Al 2 O 3 gate dielectric with a relatively high dielectric constant of 15.5, which is about 2 times that of Al 2 O 3 , having a low leakage current with insertion of tri-layer graphene. In this system, the enhanced capacitance of the hybrid structure can be understood by the formation of a space charge layer at the graphene/Al 2 O 3 interface. The electrical properties of the interface can be further explained by the electrical double layer (EDL) model dominated by the diffuse layer.
Type of Medium:
Online Resource
ISSN:
2045-2322
Language:
English
Publisher:
Springer Science and Business Media LLC
Publication Date:
2015
detail.hit.zdb_id:
2615211-3
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