A flexible dual-mode pressure sensor with ultra-high sensitivity based on BTO@MWCNTs core-shell nanofibers

Wearable flexible sensors have developed rapidly in recent years because of their improved capacity to detect human motion wide-ranging situations. In order meet the requirements flexibility and low detection limits, a new pressure sensor was fabricated based on electrospun barium titanate/multi-wall carbon nanotubes (BTO@MWCNTs) core-shell nanofibers coated with styrene-ethylene-butene-styrene block copolymer (SEBS). The material (BTO@MWCNTs/SEBS) had SEBS BTO/MWCNTs mass ratio 20:1 exhibited an excellent piezoelectricity over wide range workable pressures from 1 50 kPa, higher output current 56.37 nA superior piezoresistivity broad working 20–110 kPa compression. also good durability repeatability under different long-term cyclic loading. These properties make composite ideal for applications requiring monitoring subtle changes (exhalation, pulse rate) finger movements. BTO@MWCNTs has demonstrated great potential be assembled into intelligent wearable devices. • A SEBS. 1–50 currentof 56.97 nA. capable sensing ultra-wide (1–110 kPa).