| 학회 | 한국재료학회 |
| 학술대회 | 2020년 가을 (11/18 ~ 11/20, 휘닉스 제주 섭지코지) |
| 권호 | 26권 1호 |
| 발표분야 | A. 전자/반도체 재료 분과 |
| 제목 | A Study on the Formation of Ag Buckled Shell Structure on the Surface of Stretchable Fibers |
| 초록 | Stretchable and flexible conductive fibers are attracting attention in various fields such as wearable devices, sensors and systems, integrated circuits and human body monitoring systems. Our research team had developed a mechanical sensor able to detect strain, bending, and pressure by forming Ag nanoparticles and Ag shell on stretchable fibers through a chemical reduction method. Though, pressure sensing by piezoresistive method has a disadvantage in that the sensing range is smaller and sensitivity is insufficient compared to other stimuli. In order to solve this problem, many attempts have been made to form a structure that increases pressure responsivity on the surface of a conductive fiber. Some methods of using polymers have been suggested, such as additionally coating beads or forming a micro hairy structure using a mold-cast method. Nevertheless, since the polymer has viscoelastic properties, it still has a disadvantage of poor restoration and inhibits electrical conductivity. Herein, our research team is studying on a method of forming a buckling structure on the surface of a conductive fiber by using pre-straining method. The disadvantages of polymer structure were compensated by directly forming the Ag buckled shell on the surface of the conductive fiber. Also, the pre-straining method is relatively simple, thus the productivity is enhanced. In the future, this study is predicted to be capable of sensing a wide and accurate range based on a stable structure against pressure, and it is expected to make a great contribution to the large area of wearable electronics. |
| 저자 | Kukro Yoon1, Taeyoon Lee2 |
| 소속 | 1Nanobio Device Laboratory, 2School of Electrical and Electronic Engineering |
| 키워드 | Sensors; Wearable electronics; Ag buckled shell; Buckling structure |
