On the prospects of polyaniline and polyaniline/MWNT composites for possible pressure sensing applications

This work highlights the prospects of applications of doped polyaniline (PANI) and Polyaniline–MultiWalled Carbon Nanotube (MWNT) composites with different dopants in pressure sensing devices. PANI and its nanocomposite samples in the form of pressed pellets show orders of change in electrical conductivity with applied pressure in the range 0–30 MPa, even for very small applied bias of a few milli‐volts. The percentage variation of electrical conductivity with applied pressure is strikingly large for PANI and its composite samples.