Ultra-Sensitive Flexible Piezoresistive Strain Sensor Simulation using Carbon Nanotube Composite
Document Type
Conference Item
Publication Date
1-1-2022
Abstract
Developing flexible, highly sensitive strain sensors having an extensive working range is a pressing need for applications including healthcare, human motion, human-machine interface, robotics, etc. Herein, we focus on the complexities of modeling flexible piezo-resistive strain sensors with the COMSOL Multiphysics Finite Element Modeling (FEM) software. Due to its high gauge factor, the proposed model uses silicon as the substrate and carbon nanotubes (CNT) as the piezo-resistive material. The response of the proposed modeled sensor has been simulated for a strain range of 0-100% and analyzed concerning different parameters such as maximum displacement, electrical potential, von mises stress, sensitivity, and change in relative resistivity of the sensor. The simulation results reveal ultra-high gauge factors (from 11015 to 11105) in a strain range of 0-100% and the exceptional capability to monitor a wide range of human motions.
Keywords
Strain sensor, Piezo-resistive, COMSOL Multiphysics, Carbon nanotube, Gauge factor, Nanocomposite
Divisions
fac_eng,sch_ecs,nanocat
Publisher
IEEE
Publisher Location
345 E 47TH ST, NEW YORK, NY 10017 USA
Event Title
2022 IEEE International Conference On Semiconductor Electronics (ICSE 2022)
Event Location
ELECTR Network
Event Dates
15-17 August, 2022
Event Type
conference
Additional Information
15th IEEE International Conference on Semiconductor Electronics (ICSE), ELECTR NETWORK, AUG 15-17, 2022