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Freestanding electrospun nanofibrous materials embedded in elastomers for stretchable strain sensors
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Paper Abstract

Stretchable/flexible strain sensors are of great interests in the fields of human motion monitoring, soft robotics, and human machine interface. In this talk, we present stretchable strain sensors prepared by embedding the freestanding electrospun carbon nanofibers (CNFs) in an elastomer matrix (e.g. polyurethane). The piezoresistive response of the sensor under stretching was investigated; and the result showed that the sensor had high stretchability, high sensitivity to strain change, and good stability and reproducibility. The mechanism of the sensor was elucidated by morphological studies of the device at various strains. The effects of various device parameters on the device performance were explored to fabricate the strain sensors with sensitivity over a broad strain range. Furthermore, using these strain sensors as wearable devices for human motion monitoring was demonstrated.

Paper Details

Date Published: 13 May 2019
PDF: 6 pages
Proc. SPIE 10982, Micro- and Nanotechnology Sensors, Systems, and Applications XI, 1098216 (13 May 2019); doi: 10.1117/12.2517160
Show Author Affiliations
Obiora Onyilagha, South Dakota School of Mines and Technology (United States)
Yichun Ding, South Dakota School of Mines and Technology (United States)
Zhengtao Zhu, South Dakota School of Mines and Technology (United States)


Published in SPIE Proceedings Vol. 10982:
Micro- and Nanotechnology Sensors, Systems, and Applications XI
Thomas George; M. Saif Islam, Editor(s)

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