Graphene based low voltage field effect transistor coupled with biodegradable piezoelectric material based dynamic pressure sensor

Yogeswaran, N., Seyed Hosseini, E. and Dahiya, R. (2020) Graphene based low voltage field effect transistor coupled with biodegradable piezoelectric material based dynamic pressure sensor. Applied Materials and Interfaces, 12(48), pp. 54035-54040. (doi: 10.1021/acsami.0c13637) (PMID:33205956)

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Abstract

Pressure sensors form the basic building block for realization of an electronic or tactile skin used in prothesis, robotics, and other similar applications. This paper presents a device consisting of biodegradable piezoelectric material based dynamic pressure sensor coupled with a graphene field-effect-transistor (GFET) operated at very low voltage (50 mV). The device has a biodegradable β-glycine/chitosan composite based metal–insulator–metal (MIM) structure connected with GFET in an extended gate configuration. The developed device shows a sensitivity of 2.70 × 10–4 kPa–1 for a pressure range of 5–20 kPa and 7.56 × 10–4 kPa–1 for a pressure range between 20 and 35 kPa. A distinctive feature of the presented device is its very low operation voltage, which offers a significant advantage toward the development of energy efficient large-area electronic skin. Further, the biodegradability of piezoelectric material makes the presented sensors useful in terms of reduced electronic waste, which is currently another growing area of interest.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Yogeswaran, Mr Nivasan and Dahiya, Professor Ravinder and Seyed Hosseini, Dr Ensieh
Authors: Yogeswaran, N., Seyed Hosseini, E., and Dahiya, R.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Journal Name:Applied Materials and Interfaces
Publisher:American Chemical Society
ISSN:1944-8244
ISSN (Online):1944-8252
Copyright Holders:Copyright © 2020 American Chemical Society
First Published:First published in Applied Materials and Interfaces 12(48):54035-54040
Publisher Policy:Reproduced in accordance with the publisher copyright policy

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
301728Engineering Fellowships for Growth: Printed Tactile SKINRavinder DahiyaEngineering and Physical Sciences Research Council (EPSRC)EP/R029644/1ENG - Electronics & Nanoscale Engineering
301327`Hetero-print: A holistic approach to transfer-printing for heterogeneous integration in manufacturingPeter SkabaraEngineering and Physical Sciences Research Council (EPSRC)EP/R03480X/1ENG - Electronics & Nanoscale Engineering