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Sensors and Materials, Volume 29, Number 3 (2017)
Copyright(C) MYU K.K. All Rights Reserved.
pp. 303-309
Published on March 15, 2017

Development of a Large-Area 8 × 8 Tactile Sensing Array with High Sensitivity

Yi-Che Tsai, Cheng-Wen Ma, Yu-Hsuan Lin, and Yao-Joe Yang

(Received September 1, 2016; accepted February 13, 2017)

Keywords: conductive polymer film, carbon nanotube, membrane filter, microdome structure

In this work, a large-area tactile sensing array with high sensitivity is reported. The sensing elements of the array consist of multiwall carbon nanotubes dispersed in polydimethylsiloxane polymer. A novel fabrication process using a universal applicator is proposed for realizing large-area conducting polymer films. In addition, a nylon membrane filter is employed as a mold for creating microdome patterns, which are essential for increasing the sensitivity. The major advantages of the proposed device include ultrahigh sensitivity, flexibility, and a simple fabrication process. The sensing mechanism involves utilizing the contact resistance between the electrode and the conductive polymer film. A demonstration of the application of the tactile sensing array is presented.

Corresponding author: Yao-Joe Yang



Copyright(C) MYU K.K. All Rights Reserved.