Fig. 9: The characterization and properties of flexible piezoresistive materials.
From: Flexible brain electronic sensors advance wearable brain-computer interface
a Hybrid process diagram of mGN material90 Copyright 2019, Wang et al. (b) Energy diagram of PD-Ge conduction band energy valley level89 Copyright 2017, Yang et al. c Schematic diagram of a circuit through pressure expansion88 Copyright 2017, Haniff et al. d Numerical simulation of ΔI/I0 pressure on mGNEcoFlex composites. The illustration is a magnification of ΔI/I0 and pressure90 Copyright 2019, Wang et al. e Static test results of contact area and pressure of indium‑tin-oxide-coated glass and gold-coated rubber. Reproduced with permission92, Copyright 2019, Elsevier.
