High sensitivity and flexible fabric strain sensor based on electrochemical graphene

Abstract In this study, electrochemical graphene (ECG) was chosen to be attached to a polyester fabric with a knitted structure as a flexible fabric strain sensor through a cloth dyeing method. According to scanning electron microscopy observation and Raman scattering spectroscopy measurements, ECG...

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Bibliographic Details
Published inJapanese Journal of Applied Physics Vol. 60; no. SC; p. SCCD04
Main Authors Wang, Hsin-Jou, Cheng, Tun-Yi, Huang, Cheng-Chun, Su, Ching-Yuan, Dai, Ching-Liang, Tsai, Yao-Chuan
Format Journal Article
LanguageEnglish
Published Tokyo Japanese Journal of Applied Physics 01.06.2021
Subjects
Cloth
Fabric structures
Graphene
Human motion
Raman spectra
Resistance factors
Response time
Sensitivity
Sensors
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Summary:Abstract In this study, electrochemical graphene (ECG) was chosen to be attached to a polyester fabric with a knitted structure as a flexible fabric strain sensor through a cloth dyeing method. According to scanning electron microscopy observation and Raman scattering spectroscopy measurements, ECG was successfully attached to the fabric structure. The electromechanical performance and strain sensing properties of the graphene-based flexible strain sensor were evaluated. The resistance change and gauge factor of different ECG attached as a fabric strain sensor were quantified. The gauge factor of the fabric strain sensor with less ECG is greater than that of the fabric strain sensor with more ECG. The high gauge factor of 47 was achieved in a strain range from 0% to 2%. The fabricated strain sensor exhibited high sensitivity, fast response time and good repeatability. The fabricated ECG fabric strain sensor could be used to detect tiny physiological signals and human motion.
ISSN:0021-4922
1347-4065
DOI:10.35848/1347-4065/abe2e6