期刊
POLYMERS
卷 12, 期 7, 页码 -出版社
MDPI
DOI: 10.3390/polym12071499
关键词
flexible pressure sensors; carbon nanotubes; linear sensitivity; composite; porous structure
资金
- National Research Foundation of Korea (NRF) - Korean government (MEST) [NRF-2019R1A2C2011437]
We developed a simple, low-cost process to fabricate a flexible pressure sensor with linear sensitivity by using a porous carbon nanotube (CNT)/polydimethylsiloxane (PDMS) composite structure (CPCS). The working principle of this pressure sensor is based on the change in electrical resistance caused by the contact/non-contact of the CNT tip on the surface of the pores under pressure. The mechanical and electrical properties of the CPCSs could be quantitatively controlled by adjusting the concentration of CNTs. The fabricated flexible pressure sensor showed linear sensitivity and excellent performance with regard to repeatability, hysteresis, and reliability. Furthermore, we showed that the sensor could be applied for human motion detection, even when attached to curved surfaces.
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