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Title: Highly stretchable and kirigami-structured strain sensors with long silver nanowires of high aspect ratio
Authors: Huang, Huiyan
Cai, Catherine Jiayi
Yeow, Bok Seng
Ouyang, Jianyong 
Ren, Hongliang 
Keywords: Flexible sensor
Human health monitoring
Silver nanowire
Strain sensor
Stretchable sensor
Issue Date: 3-Sep-2021
Publisher: MDPI
Citation: Huang, Huiyan, Cai, Catherine Jiayi, Yeow, Bok Seng, Ouyang, Jianyong, Ren, Hongliang (2021-09-03). Highly stretchable and kirigami-structured strain sensors with long silver nanowires of high aspect ratio. Machines 9 (9) : 186. ScholarBank@NUS Repository.
Rights: Attribution 4.0 International
Abstract: Stretchable, skin-interfaced, and wearable strain sensors have risen in recent years due to their wide-ranging potential applications in health-monitoring devices, human motion detection, and soft robots. High aspect ratio (AR) silver nanowires (AgNWs) have shown great potential in the flexible and stretchable strain sensors due to the high conductivity and flexibility of AgNW conductive networks. Hence, this work aims to fabricate highly stretchable, sensitive, and linear kirigami strain sensors with high AR AgNWs. The AgNW synthesis parameters and process windows have been identified by Taguchi’s design of experiment and analysis. Long AgNWs with a high AR of 1556 have been grown at optimized synthesis parameters using the one-pot modified polyol method. Kirigami sensors were fabricated via full encapsulation of AgNWs with Ecoflex silicon rubber. Kirigami-patterned strain sensors with long AgNWs show high stretchability, moderate sensitivity, excellent linearity (R2 = 0.99) up to 70% strain and can promptly detect finger movement without obvious hysteresis. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
Source Title: Machines
ISSN: 2075-1702
DOI: 10.3390/machines9090186
Rights: Attribution 4.0 International
Appears in Collections:Staff Publications

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