首页|Vertical graphene-decorated carbon nanofibers establishing robust conductive networks for fiber-based stretchable strain sensors

Vertical graphene-decorated carbon nanofibers establishing robust conductive networks for fiber-based stretchable strain sensors

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
Stretchable strain sensors have great potential for diverse applications including human motion detection,soft robotics,and health monitoring.However,their practical implementation requires improved repeata-bility and stability along with high sensing performances.Here,we utilized spiky vertical graphene(VG)sheets decorated on carbon nanofibers(VG@CNFs)to establish reliable conductive networks for resistive strain sensing.Three-dimensional(3D)VG@CNFs combined with reduced graphene oxide(rGO)sheets were simply coated on stretchable spandex fibers by ultrasonication.Because of the spiky geometry of the VG sheets,VG@CNF and rGO exhibited enhanced interactions,which was confirmed by mode I frac-ture tests.Due to the robust conductive networks formed by the VG@CNF and rGO hybrid,the fiber strain sensor exhibited a significantly improved strain range of up to 522％(with a high gauge factor of 1358)and stable resistance changes with minimal variation even after 5000 stretching-releasing cycles under a strain of 50％.In addition,the textile strain sensor based on the VG@CNF/rGO hybrid showed even improved repeatability for various strain levels of 10％to 200％,enabling its implementation on leg-gings for monitoring of squat posture.This study demonstrates the high potential of the 3D VG@CNF for high-performance and reliable stretchable strain sensors.

Stretchable strain sensorVertical grapheneReduced graphene oxideCarbon nanofiberHuman motion detection

Hyeon-Jong Lee、Seung Chan Na、TaeGyeong Lim、Jeongmin Yun、Yonas Tsegaye Megra、Ji-Hyun Oh、Wonyoung Jeong、Daeyoung Lim、Ji Won Suk

展开 >

School of Mechanical Engineering Sungkyunkwan University,Suwon,Gyeonggi-do 16419,Republic of Korea

Department of Smart Fab.Technology,Sungkyunkwan University,Suwon,Gyeonggi-do 16419,Republic of Korea

Department of Clothing and Textiles,Changwon National University,Changwon,Gyeongsangnam-do,51140,Republic of Korea

Material and Component Convergence R&D Department,Korea Institute of Industrial Technology(K1TECH),Ansan,Gyeonggi-do 15588,Republic of Korea

SKKU Advanced Institute of Nanotechnology(SAINT),Sungkyunkwan University,Suwon,Gyeonggi-do 16419,Republic of Korea

展开 >

2024

10.1016/j.jmst.2024.01.090

材料科学技术(英文版)
中国金属学会 中国材料研究学会 中国科学院金属研究所

材料科学技术(英文版)

CSTPCD
影响因子：0.657
ISSN：1005-0302
年,卷(期)：2024.200(33)