NDLI: Fabrication and Characterization of Physical and Mechanical Properties of Carbon Nanotubes—Graphene-Based Sandwich Composite Pressure Sensor

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Fabrication and Characterization of Physical and Mechanical Properties of Carbon Nanotubes—Graphene-Based Sandwich Composite Pressure Sensor

Content Provider	MDPI
Author	Ali, Asar Ali, Farman Rashedi, Ahmad Armghan, Ammar Fazita, M. Alenezi, Fayadh Babu, N.
Copyright Year	2021
Description	In this work, piezoresistive properties of graphene-multiwalled carbon nanotubes (MWCNTs) composites are investigated, characterized, and compared. Sandwich-type composite piezoresistive pressure-sensitive sensors (Ag/Graphene-MWCNT/Ag) with the same diameters, but different fabrication pressures and thicknesses were fabricated using the mortar and pestle/hydraulic press technique. To produce low-electrical-resistance contacts, both sides of the composite sensors were painted with silver (Ag) paste. All the sensors showed reductions in the direct current (DC) resistance ‘R’ with an increment in external uniaxial applied pressure. However, it was observed that higher fabrication pressure led to a lower resistance value of the composite, while the thicker samples give lower electrical conductivity and higher resistance than the thinner samples. The experimental data for all composite pressure sensors were in excellent agreement with the simulated results.
Starting Page	1284
e-ISSN	20794991
DOI	10.3390/nano11051284
Journal	Nanomaterials
Issue Number	5
Volume Number	11
Language	English
Publisher	MDPI
Publisher Date	2021-05-13
Access Restriction	Open
Subject Keyword	Nanomaterials Characterization and Testing of Materials Carbon Nanotubes Graphene Piezoresistive Pressure Sensors Resistance Composites
Content Type	Text
Resource Type	Article

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