Flexible iontronic pressure sensing technology: advanced structural ionic layer

Since the advent of iontronic sensing technology, this emerging field has garnered growing research attention. Its unique electric double layer (EDL) theory reveals the characteristics of the ion-electron contact interface and can significantly increase the charge density per unit area, empowering the derived pressure sensors to achieve remarkable breakthroughs in sensitivity and detection accuracy. With an increase of several orders of magnitude in force-electric response compared with traditional capacitive pressure sensors, it provides core technical support for high-performance flexible sensing applications. Studies have shown that the contact area between the ionic layer and electrodes A decisively…