All Paper-Based, Multilayered, Inkjet-Printed Tactile Sensor in Wide Pressure Detection Range with High Sensitivity
- Authors
- Taehoon Lee; YUNSUNG KANG; Kwanhun Kim; SANGJUN SIM; KYUBIN BAE; Yeunjun Kwak; WON KEUN PARK; Min-Hyeong Kim; Jongbaeg Kim
- Issue Date
- Feb-2022
- Publisher
- Wiley
- Keywords
- inkjet printing; mulberry paper; pressure sensor; paper-based tactile sensors; wide sensing range
- Citation
- Advanced Materials Technologies, v.7, no.2, pp 2100428-1 - 2100428-9
- Journal Title
- Advanced Materials Technologies
- Volume
- 7
- Number
- 2
- Start Page
- 2100428-1
- End Page
- 2100428-9
- URI
- https://yscholarhub.yonsei.ac.kr/handle/2021.sw.yonsei/6284
- DOI
- 10.1002/admt.202100428
- ISSN
- 2365-709X
- Abstract
- Paper has attracted considerable interest as a promising pressure-sensing element owing to its foldability/bendability and deformability due to its high porosity. However, paper-based tactile sensors reported hitherto cannot achieve high sensitivity and a wide sensing range simultaneously. In this study, a resistive tactile sensor using carbon nanotube- and silver nanoparticle-printed mulberry paper as a pressure-sensing element and electrodes, respectively, is developed. The rough surface and high inner porosity of mulberry paper induce a significant change in the contact area when a multilayer-stacked structure is used, resulting in increased sensitivity to pressure. Moreover, the enhanced mechanical robustness of mulberry paper originating from the highly bonded network of long and thick fibers affords a wide pressure-sensing range. The sensor exhibits a high sensitivity exceeding 1 kPa?1 in an applied pressure range of 0.05?900 kPa; this achievement has not been reported among paper-based tactile sensors. Furthermore, the sensor exhibits a fast response/relaxation time, low detection limit, high resolution, high durability, and high flexibility. The advantages of the sensor afford several applications, including a crosstalk-free pressure sensor array, a three-axis pressure sensor, and wearable devices for measuring signals from a user.
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Collections - College of Engineering > Mechanical Engineering > 1. Journal Articles
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