A novel model for graphene-based ion-sensitive field-effect transistor

A novel model for graphene-based ion-sensitive field-effect transistor Graphene field-effect transistors (GFETs) are a promising candidate for sensing applications because of their high charge carrier mobility, high flexibility, biocompatibility and the ideal coupling between graphene charge carriers and surface potential. Coating graphene with sensing membrane fabricated high-k materials that can be used to pH sensing in aqueous solutions. This work presents the development of an analytical model for GFET-based pH sensor. This model can help in the investigation of the sensitivity mechanism related to the ambipolar characteristic of the GFET and theory of site binding and a Gouy–Chapman–Stern model. Finally, simulation results are compared with those extracted from experimental measurements and a good agreement is observed which validates the proposed analytical model. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Computational Electronics Springer Journals

A novel model for graphene-based ion-sensitive field-effect transistor

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Publisher
Springer US
Copyright
Copyright © 2017 by Springer Science+Business Media, LLC
Subject
Engineering; Mathematical and Computational Engineering; Electrical Engineering; Theoretical, Mathematical and Computational Physics; Optical and Electronic Materials; Mechanical Engineering
ISSN
1569-8025
eISSN
1572-8137
D.O.I.
10.1007/s10825-017-1068-6
Publisher site
See Article on Publisher Site

Abstract

Graphene field-effect transistors (GFETs) are a promising candidate for sensing applications because of their high charge carrier mobility, high flexibility, biocompatibility and the ideal coupling between graphene charge carriers and surface potential. Coating graphene with sensing membrane fabricated high-k materials that can be used to pH sensing in aqueous solutions. This work presents the development of an analytical model for GFET-based pH sensor. This model can help in the investigation of the sensitivity mechanism related to the ambipolar characteristic of the GFET and theory of site binding and a Gouy–Chapman–Stern model. Finally, simulation results are compared with those extracted from experimental measurements and a good agreement is observed which validates the proposed analytical model.

Journal

Journal of Computational ElectronicsSpringer Journals

Published: Sep 8, 2017

References

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