Highly Flexible Strain Sensor from Tissue Paper for Wearable Electronics

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• 作者：Yuanqing Li ; Yarjan Abdul Samad ; Tarek Taha ; Guowei Cai ; Shao-Yun Fu ; Kin Liao
• 刊名：ACS Sustainable Chemistry & Engineering
• 出版年：2016
• 出版时间：August 1, 2016
• 年：2016
• 卷：4
• 期：8
• 页码：4288-4295
• 全文大小：552K
• 年卷期：0
• ISSN：2168-0485

文摘

We introduce a simple method to fabricate a highly flexible resistive-type strain sensor composed of carbon paper (CP) and polydimethylsiloxane (PDMS) elastomer. The key resistance sensitive material of the sensor, carbon paper, is prepared from tissue paper by a simple high-temperature pyrolysis process. At the same time, the as-fabricated CP/PDMS strain senor is highly sensitive to applied strain with a gauge factor of 25.3, almost 10 times higher than that of conventional metallic strain gauge. Furthermore, the response of CP/PDMS strain sensor under cyclic tensile strain with a peak strain of 3% was also investigated, which exhibits fast and steady response with excellent durability within the frequency range 0.01–10 Hz. Finally, we demonstrate the successful utilization of the CP/PDMS strain sensor as wearable electronics in breath monitoring and robot controlling. The eminent performance, low material cost, and facile fabrication process make the CP/PDMS strain sensor exceptionally promising in flexible, stretchable, and wearable electronics.