Fully Printed, Highly Sensitive Multifunctional Artificial Electronic Whisker Arrays Integrated with Strain and Temperature Sensors
- 1 March 2014
- journal article
- research article
- Published by American Chemical Society (ACS) in ACS Nano
- Vol. 8 (4), 3921-3927
- https://doi.org/10.1021/nn500845a
Abstract
Mammalian-mimicking functional electrical devices have tremendous potential in robotics, wearable and health monitoring systems, and human interfaces. The keys to achieve these devices are (1) highly sensitive sensors, (2) economically fabricated macroscale devices on flexible substrates, and (3) multifunctions beyond mammalian functions. Although highly sensitive artificial electronic devices have been reported, none have been fabricated using cost-effective macroscale printing methods and demonstrate multifunctionalities of artificial electronics. Herein we report fully printed high-sensitivity multifunctional artificial electronic whiskers (e-whisker) integrated with strain and temperature sensors using printable nanocomposite inks. Importantly, changing the composition ratio tunes the sensitivity of strain. Additionally, the printed temperature sensor array can be incorporated with the strain sensor array beyond mammalian whisker functionalities. The sensitivity for the strain sensor is impressively high (∼59%/Pa), which is the best sensitivity reported to date (>7× improvement). As the proof-of-concept for a truly printable multifunctional artificial e-whisker array, two- and three-dimensional space and temperature distribution mapping are demonstrated. This fully printable flexible sensor array should be applicable to a wide range of low-cost macroscale electrical applications.Keywords
This publication has 22 references indexed in Scilit:
- A highly sensitive pressure sensor using a Au-patterned polydimethylsiloxane membrane for biosensing applicationsJournal of Micromechanics and Microengineering, 2013
- Skin-like pressure and strain sensors based on transparent elastic films of carbon nanotubesNature Nanotechnology, 2011
- High‐Strain Sensors Based on ZnO Nanowire/Polystyrene Hybridized Flexible FilmsAdvanced Materials, 2011
- High-Sensitivity Strain Gauge Based on a Single Wire of Gold Nanoparticles Fabricated by Stop-and-Go Convective Self-AssemblyACS Nano, 2011
- A stretchable carbon nanotube strain sensor for human-motion detectionNature Nanotechnology, 2011
- Materials for multifunctional balloon catheters with capabilities in cardiac electrophysiological mapping and ablation therapyNature Materials, 2011
- Nanowire active-matrix circuitry for low-voltage macroscale artificial skinNature Materials, 2010
- Highly sensitive flexible pressure sensors with microstructured rubber dielectric layersNature Materials, 2010
- Highly sensitive and selective odorant sensor using living cells expressing insect olfactory receptorsProceedings of the National Academy of Sciences, 2010
- Nanoparticle films as sensitive strain gaugesApplied Physics Letters, 2007