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Roll stamped Ni/MWCNT composites for highly reliable cellulose paper-based strain sensoropen access

Authors
Qi, XueMatteini, PaoloHwang, ByungilLim, Sooman
Issue Date
Feb-2023
Publisher
Springer Science and Business Media B.V.
Keywords
3D printing; Ni/MWCNT composites; Paper-based sensor; Roll stamping; Sensing stability; Strain sensor
Citation
Cellulose, v.30, no.3, pp 1543 - 1552
Pages
10
Journal Title
Cellulose
Volume
30
Number
3
Start Page
1543
End Page
1552
URI
https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/66936
DOI
10.1007/s10570-022-04970-3
ISSN
0969-0239
1572-882X
Abstract
Printing technology for electronic devices has garnered considerable attention owing to its rapid and massive productivity under ambient conditions. In this study, a facile approach is proposed for manufacturing cellulose paper-based strain sensors with Ni/multi-walled carbon nanotube (MWCNT) composites using roll stamping technology. This process enables the fabrication of stable sensing structures owing to the formation of stable Ni core-enveloping structures in the MWCNT interlacing network. In particular, the rheological properties of the composites revealed shear thinning and thixotropic behavior, which resulted in fine printing of the sensing electrodes. Furthermore, the shape of the printed patterns, imparted by the pattern morphology, significantly influenced the strain-sensing performance. In particular, the Ni/MWCNT composite-based strain sensor exhibited a higher gauge factor of 13.9, with a high sensing recovery of 90.4% and stability over 23,500 bending cycles.
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