期刊
ACS APPLIED MATERIALS & INTERFACES
卷 11, 期 25, 页码 22531-22542出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.9b04915
关键词
MoS2-decorated laser-induced graphene (MDS-LIG); piezoresistive strain sensor; laser irradiation; crack propagation; subtle strain
资金
- Technology Innovation Program - Ministry of Trade, Industry & Energy (MI, Korea) [20000773, 10053023]
- Bio & Medical Technology Development Program of the NRF - Korean government (MSIT) [NRF-2017M3A9F1031270]
Advancement of sensing systems, soft robotics, and point-of-care testing requires the development of highly efficient, scalable, and cost-effective physical sensors with competitive and attractive features such as high sensitivity, reliability, and preferably reversible sensing behaviors. This study reports a highly sensitive and reliable piezoresistive strain sensor fabricated by one-step carbonization of the MoS2-coated polyimide film to obtain MoS2-decorated laser-induced graphene. The resulting three-dimensional porous graphene nanoflakes decorated with MoS2 exhibit stable electrical properties yielding a reliable output for longer strain/release cycles. The sensor demonstrates high sensitivity (i.e., gauge factor, GF approximate to 1242), is hysteresis-free (similar to 2.75%), and has a wide working range (up to 37.5%), ultralow detection limit (0.025%), fast relaxation time (similar to 0.17 s), and a highly stable and reproducible response over multiple test cycles (>12 000) with excellent switching response. Owing to the outstanding performances of the sensor, it is possible to successfully detect various subtle movements ranging from phonation, eye-blinking, and wrist pulse to large human-motion-induced deformations.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据