A Review: Carbon Nanotube-Based Piezoresistive Strain Sensors
By Waris Obitayo, Tao Liu. J. Sensors, 2012
315 citations recorded by the source corpus.
The use of carbon nanotubes for piezoresistive strain sensors has acquired significant attention due to its unique electromechanical properties. In this comprehensive review paper, we discussed some important aspects of carbon nanotubes for strain sensing at both the nanoscale and macroscale. Carbon nanotubes undergo changes in their band structures when subjected to mechanical deformations. This phenomenon makes them applicable for strain sensing applications. This paper signifies the type of carbon nanotubes best suitable for piezoresistive strain sensors. The electrical resistivities of carbon nanotube thin film increase linearly with strain, making it an ideal material for a piezoresistive strain sensor. Carbon nanotube composite films, which are usually fabricated by mixing small amounts of single-walled or multiwalled carbon nanotubes with selected polymers, have shown promising characteristics of piezoresistive strain sensors. Studies also show that carbon nanotubes display a stable and predictable voltage response as a function of temperature.
Subfields: Biomedical Engineering, Materials Chemistry, Pollution
View Paper: https://www.semanticscholar.org/paper/fe275f72a806ee9cf558c9513181801a5a5d9fdc
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In Biomedical Engineering
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- Candido Fabrizio Pirri
- Morteza Amjadi
- Giancarlo Canavese
- Valentina Cauda
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In Materials Chemistry
In Pollution
Citations in the corpus
- Ultra-stretchable and skin-mountable strain sensors using carbon nanotubes–Ecoflex nanocomposites (2015, background): “Moreover, CNTs have excellent elastic properties with tensile strength of up to 40% [59], enabling the CNTs to move and stretch with the elongation of Ecoflex.”
- Flexible Tactile Sensing Based on Piezoresistive Composites: A Review (2014, background): “For high aspect ratios, the applied force could cause also a reorientation and reshaping of the particles that could induce the destruction of the existing conductive network or a reduction of the conductivity of the filler [70,77].”
- Interlaminar toughening in structural carbon fiber/epoxy composites interleaved with carbon nanotube veils (2019, background): “crack between the plies [13, 14, 15]. These hierarchical composites can further exhibit high electrical conductivity or piezoresistivity if proper structural and interfacial organization are achieved [16, 17, 18]. Several approaches for integrating CNTs into FRP structural composites have been studi”