Multifunctional Triboelectric Sensor with Temperature and Tactile Visualization

Visual triboelectric sensors with multiresponse sensing capabilities enrich the applications of smart electronic skin in human-computer interaction and artificial intelligence. However, achieving multifunctional visualization of sensors is still a challenge at present. A triboelectric sensor with temperature and tactile measurement and visualization functions is proposed, which senses temperature change through the resistance of a temperature-sensitive multiwalled carbon nanotubes (MWCNTs) layer, senses the mechanical stimulus by the voltage of the triboelectric layer, and the temperature and pressure are visualized by the photoemitting material SrAl2O4: Eu2+, Dy3+ (SAOED), which is simultaneously sensitive to temperature and stress. The sensing mechanism of the visual triboelectric sensor is discussed, the temperature and triboelectric sensing properties of the sensor are tested, and the temperature and tactile visualization functions of the sensor are also explored. In addition, the sensor can be used to visualize the dynamic force trajectory and realize the early warning effect of temperature detection, which is applied in the field of multifunctional human-computer interaction. The multifunctional visual triboelectric sensor enriches the function of visual electronic skin and promotes the development of visual electronic skin in the field of human-computer interaction and intelligent control.