"Smartphone screens and organic LEDs used to map magnetic fields with quantum sensitivity"

Researchers from the ARC Centre of Excellence in Exciton Science have developed a chip-scale approach that uses organic light-emitting diodes (OLEDs) to image magnetic fields, potentially turning smartphones into portable quantum sensors. By integrating an OLED with a microwave resonator, each individual pixel of the OLED screen can act as a small magnetic field sensor. The technology has significant implications for use in healthcare and industry settings, such as finding defects in construction materials or as a biomedical sensor.