Printed magnetic field sensors based on bismuth showing large non-saturating magnetoresistance

The development of functional inks allows to create novel printed electronics with unconventional form factors. Here, we show the fabrication of printed magnetic field sensors based on bismuth microparticles. Sensors showed non-saturating large magnetoresistance (146%, 5T, at room temperature), and resilience to mechanical bending (2000 cycles). We demonstrated large area magnetically sensitive interfaces as smart lock and interactive wallpapers.[1]
[1] E.S. Oliveros-Mata, C. Voigt, et al. Adv. Mater. Technol.2200227 (2022)