Recent Advances and Current Challenges of High-Sensitivity Resistive Pressure Sensors for Position Recognition

Innovations in sensing materials and microstructure design have led to significant progress in highly sensitive resistive pressure sensors for position recognition. Sensitive layer materials such as conductive hydrogels, carbon-based materials, MXenes, and metallic fillers have greatly enhanced sensor performance. Meanwhile, surface microstructures like domes and micropillars, along with internal porous structures, have further improved pressure sensitivity and spatial resolution. This review summarizes these recent advances and highlights future challenges such as the realization of high-density arrays, suppression of signal crosstalk, and improvements in fabrication processes.