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Journal of Sensors
Volume 2017 (2017), Article ID 7843052, 8 pages
Research Article

Preparation and Property Research of Strain Sensor Based on PDMS and Silver Nanomaterials

MicroNano System Research Center, Key Laboratory of Advanced Transducers and Intelligent Control System, Ministry of Education and Shanxi Province and College of Information Engineering, Taiyuan University of Technology, Taiyuan 030024, China

Correspondence should be addressed to Shengbo Sang

Received 10 January 2017; Accepted 20 February 2017; Published 9 March 2017

Academic Editor: Kourosh Kalantar-Zadeh

Copyright © 2017 Lihua Liu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Based on the advantages and broad applications of stretchable strain sensors, this study reports a simple method to fabricate a highly sensitive strain sensor with Ag nanomaterials-polydimethylsiloxane (AgNMs-PDMS) to create a synergic conductive network and a sandwich-structure. Three Ag nanomaterial samples were synthesized by controlling the concentrations of the FeCl3 solution and reaction time via the heat polyols thermal method. The AgNMs network’s elastomer nanocomposite-based strain sensors show strong piezoresistivity with a high gauge factor of 547.8 and stretchability from 0.81% to 7.26%. The application of our high-performance strain sensors was demonstrated by the inducting finger of the motion detection. These highly sensitive sensors conform to the current trends of flexible electronics and have prospects for broad application.