Title
A Sensitivity Enhanced MWCNT/PDMS Tactile Sensor Using Micropillars and Low Energy Ar⁺ Ion Beam Treatment.
Abstract
High sensitive flexible and wearable devices which can detect delicate touches have attracted considerable attentions from researchers for various promising applications. This research was aimed at enhancing the sensitivity of a MWCNT/PDMS piezoresistive tactile sensor through modification of its surface texture in the form of micropillars on MWCNT/PDMS film and subsequent low energy Ar+ ion beam treatment of the micropillars. The introduction of straight micropillars on the MWCNT/PDMS surface increased the sensitivity under gentle touch. Low energy ion beam treatment was performed to induce a stiff layer on the exposed surface of the micropillar structured MWCNT/PDMS film. The low energy ion bombardment stabilized the electrical properties of the MWCNT/PDMS surface and tuned the curvature of micropillars according to the treatment conditions. The straight micropillars which were treated by Ar+ ion with an incident angle of 0 degrees demonstrated the enhanced sensitivity under normal pressure and the curved micropillars which were treated with Ar+ ion with an incident angle of 60 degrees differentiated the direction of an applied shear pressure. The ion beam treatment on micropillar structured MWCNT/PDMS tactile sensors can thus be applied to reliable sensing under gentle touch with directional discrimination.
Year
DOI
Venue
2016
10.3390/s16010093
SENSORS
Keywords
Field
DocType
MWCNT,PDMS,piezoresistive tactile sensor,micropillar,ion beam treatment,curved pillar,directional detection
Microtechnology,Nanotechnology,Analytical chemistry,Shear (sheet metal),Ion beam,Argon,Surface finish,Engineering,Optoelectronics,Ion,Piezoresistive effect,Tactile sensor
Journal
Volume
Issue
ISSN
16
1.0
1424-8220
Citations 
PageRank 
References 
1
0.47
6
Authors
7
Name
Order
Citations
PageRank
Syed Azkar Ul Hasan110.47
Youngdo Jung272.53
Seong-Gi Kim340355.43
Cho-Long Jung410.47
Sunjong Oh510.47
Junhee Kim610.47
Hyuneui Lim771.86