Recent Advances in Large‐Scale Tactile Sensor Arrays Based on a Transistor Matrix

摘要

Abstract Tactile sensors that possess the physical properties of human epidermis, which can sense external stimuli (pressure, temperature, humidity, etc.), are a very popular cutting‐edge innovation. They make a large contribution to extensive applications in the real‐time monitoring of human health, artificial intelligence, robot systems, and biocompatibility. However, great challenges remain in large‐scale tactile simulation to attain fast data transmission and low signal crosstalk among the pixels. The tactile sensor arrays based on a transistor matrix (TSATMs) are thus investigated for large‐scale pressure mapping. Currently, a variety of TSATMs with different device structures have been described. The integrated composite structure, consisting of a transistor matrix and a pressure‐dependent electronic component, was first widely employed for tactile mapping. Then, researchers conducted a large amount of scientific inquiry into the intrinsic pressure‐sensitive transistor. These pressure‐dependent transistors are based on changes in the specific gate capacitance, piezotronic effect, piezo‐phototronic effect, and triboelectric nanogenerator. Certainly, novel systems and materials, low‐power consumption, and multifunctional design should be considered for the next generation of intelligent TSATMs to meet the needs of diverse practical applications.