Highly Elastic Melamine Graphene/MWNT Hybrid Sponge for Sensor Applications

The rapidly increased interest in multifunctional nanoelectronic devices, such as wearable monitors, smart robots, and electronic skin, motivated many researchers toward the development of several kinds of sensors in recent years. Flexibility, stability, sensitivity, and low cost are the most import...

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Main Authors: Christos Fragkogiannis, Apostolos Koutsioukis, Vasilios Georgakilas
Format: Article
Language:English
Published: MDPI AG 2022-05-01
Series:Molecules
Subjects:
Online Access:https://www.mdpi.com/1420-3049/27/11/3530
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author Christos Fragkogiannis
Apostolos Koutsioukis
Vasilios Georgakilas
author_facet Christos Fragkogiannis
Apostolos Koutsioukis
Vasilios Georgakilas
author_sort Christos Fragkogiannis
collection DOAJ
description The rapidly increased interest in multifunctional nanoelectronic devices, such as wearable monitors, smart robots, and electronic skin, motivated many researchers toward the development of several kinds of sensors in recent years. Flexibility, stability, sensitivity, and low cost are the most important demands for exploiting stretchable or compressible strain sensors. This article describes the formation and characteristics of a flexible, low-cost strain sensor by combining a commercial melamine sponge and a graphene/carbon nanotubes hybrid. The composite that emerged by doping the highly elastic melamine sponge with a highly conductive graphene/carbon nanotubes hybrid showed excellent piezoresistive behavior, with low resistivity of 22 kΩ m. Its function as a piezoresistive material exhibited a high sensitivity of 0.050 kPa<sup>−1</sup> that combined with a wide detection area ranging between 0 to 50 kPa.
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spelling doaj.art-0569ad3eea554c7981d3bdb4549ba5a62023-11-23T14:30:18ZengMDPI AGMolecules1420-30492022-05-012711353010.3390/molecules27113530Highly Elastic Melamine Graphene/MWNT Hybrid Sponge for Sensor ApplicationsChristos Fragkogiannis0Apostolos Koutsioukis1Vasilios Georgakilas2Department of Material Science, University of Patras, 26500 Patras, GreeceDepartment of Material Science, University of Patras, 26500 Patras, GreeceDepartment of Material Science, University of Patras, 26500 Patras, GreeceThe rapidly increased interest in multifunctional nanoelectronic devices, such as wearable monitors, smart robots, and electronic skin, motivated many researchers toward the development of several kinds of sensors in recent years. Flexibility, stability, sensitivity, and low cost are the most important demands for exploiting stretchable or compressible strain sensors. This article describes the formation and characteristics of a flexible, low-cost strain sensor by combining a commercial melamine sponge and a graphene/carbon nanotubes hybrid. The composite that emerged by doping the highly elastic melamine sponge with a highly conductive graphene/carbon nanotubes hybrid showed excellent piezoresistive behavior, with low resistivity of 22 kΩ m. Its function as a piezoresistive material exhibited a high sensitivity of 0.050 kPa<sup>−1</sup> that combined with a wide detection area ranging between 0 to 50 kPa.https://www.mdpi.com/1420-3049/27/11/3530graphenecarbon nanotubesmelamine spongestrain sensorpiezoresistivity
spellingShingle Christos Fragkogiannis
Apostolos Koutsioukis
Vasilios Georgakilas
Highly Elastic Melamine Graphene/MWNT Hybrid Sponge for Sensor Applications
Molecules
graphene
carbon nanotubes
melamine sponge
strain sensor
piezoresistivity
title Highly Elastic Melamine Graphene/MWNT Hybrid Sponge for Sensor Applications
title_full Highly Elastic Melamine Graphene/MWNT Hybrid Sponge for Sensor Applications
title_fullStr Highly Elastic Melamine Graphene/MWNT Hybrid Sponge for Sensor Applications
title_full_unstemmed Highly Elastic Melamine Graphene/MWNT Hybrid Sponge for Sensor Applications
title_short Highly Elastic Melamine Graphene/MWNT Hybrid Sponge for Sensor Applications
title_sort highly elastic melamine graphene mwnt hybrid sponge for sensor applications
topic graphene
carbon nanotubes
melamine sponge
strain sensor
piezoresistivity
url https://www.mdpi.com/1420-3049/27/11/3530
work_keys_str_mv AT christosfragkogiannis highlyelasticmelaminegraphenemwnthybridspongeforsensorapplications
AT apostoloskoutsioukis highlyelasticmelaminegraphenemwnthybridspongeforsensorapplications
AT vasiliosgeorgakilas highlyelasticmelaminegraphenemwnthybridspongeforsensorapplications