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SCI Article

Flexible Strain Sensors Fabricated by Meniscus-Guided Printing of Carbon Nanotube-Polymer Composites
성명 조성호()
소속 공과대학 융합전자공학부
캠퍼스
우수선정주 2018년 07월 3째주
Author Lee, Sanghyeon (Dept Elect & Comp Engn); Chang, Won Suk (Dept Elect & Comp Engn); 조성호 (Dept Elect & Comp Engn);
Corresponding Author Info Seol, SK (reprint author), KERI, Nano Hybrid Technol Res Ctr, Changwon Si 51543, Gyeongsangnam D, South Korea.; Seol, SK (reprint author), Korea Univ Sci & Technol UST, Electrofunct Mat Engn, Changwon Si 51543, Gyeongsangnam D, South Korea.; Cho, SH (repr
E-mail 이메일 아이콘dragon@hanyang.ac.kr
Document Type Article
Source ACS APPLIED MATERIALS & INTERFACES Volume:10 Issue:23 Pages:19999-20005 Published:2018
Times Cited 0
External Information http://dx.doi.org/10.1021/acsami.8b04073
Abstract Printed strain sensors have promising potential as a human-machine interface (HMI) for health-monitoring systems, human-friendly wearable interactive systems, and smart robotics. Herein, flexible strain sensors based on carbon nanotube (CNT)-polymer composites were fabricated by meniscus-guided printing using a CNT ink formulated from multiwall nanotubes (MWNTs) and polyvinylpyrrolidone (PVP); the ink was suitable for micropatterning on nonflat (or curved) substrates and even three-dimensional structures. The printed strain sensors exhibit a reproducible response to applied tensile and compressive strains, having gauge factors of 13.07 under tensile strain and 12.87 under compressive strain; they also exhibit high stability during similar to 1500 bending cycles. Applied strains induce a contact rearrangement of the MWNTs and a change in the tunneling distance between them, resulting in a change in the resistance (Delta R/R-0) of the sensor. Printed MWNT-PVP sensors were used in gloves for finger movement detection; these can be applied to human motion detection and remote control of robotic equipment. Our results demonstrate that meniscus-guided printing using CNT inks can produce highly flexible, sensitive, and inexpensive HMI devices.
Web of Science Categories Nanoscience & Nanotechnology; Materials Science, Multidisciplinary
Funding Korea Electrotechnology Research Institute (KERI) Primary research program through the National Research Council of Science & Technology (NST) - Ministry of Science and ICT [18-12-N0101-17]
Language English
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