Sensitive and fast response graphite pressure sensor fabricated by a solvent-free approach

This work demonstrates a biodegradable resistive pressure sensor fabricated by a solvent-free, low cost and highly efficient method. The sensor shows a high sensitivity of 4.77 %/kPa, a fast response of 0.3 ms and a relaxation time of 8 ms. The fast response time, flexibility, and capability to be safely attached to the human body and measure the motion of the Unger in real-time indicate its potential for human motion detection, touch displays, and tactile sensing applications.