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Open AccessArticle

FEP Encapsulated Crack-Based Sensor for Measurement in Moisture-Laden Environment

Department of Mechanical Engineering, Ajou University, Suwon 16499, Korea
Department of Health, Environmental and safety, EulJi University, Seongnam 13135, Korea
Authors to whom correspondence should be addressed.
These authors contributed equally to this work.
Materials 2019, 12(9), 1516;
Received: 9 April 2019 / Revised: 3 May 2019 / Accepted: 6 May 2019 / Published: 9 May 2019
(This article belongs to the Special Issue Advanced/Alternative Transparent Conducting Oxides)
Among many flexible mechanosensors, a crack-based sensor inspired by a spider’s slit organ has received considerable attention due to its great sensitivity compared to previous strain sensors. The sensor’s limitation, however, lies on its vulnerability to stress concentration and the metal layers’ delamination. To address this issue of vulnerability, we used fluorinated ethylene propylene (FEP) as an encapsulation layer on both sides of the sensor. The excellent waterproof and chemical resistance capability of FEP may effectively protect the sensor from damage in water and chemicals while improving the durability against friction. View Full-Text
Keywords: strain sensor; thin metal film; spider inspired; crack; encapsulation strain sensor; thin metal film; spider inspired; crack; encapsulation
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Kim, M.; Choi, H.; Kim, T.; Hong, I.; Roh, Y.; Park, J.; Seo, S.; Han, S.; Koh, J.-S.; Kang, D. FEP Encapsulated Crack-Based Sensor for Measurement in Moisture-Laden Environment. Materials 2019, 12, 1516.

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