Electronic skin imitates the function of human skin. The flexible pressure sensor is an important sensor of electronic skin. Although the flexible pressure sensor has made some progress, electronic skin is still a challenging subject with good pressure resolution, high sensitivity, and fast response ability in biomedical, human motion detection, personal health monitoring, and other fields. The PEDOT:PSS/GR/SWCNTs multicomponent solution was directly written on the flexible PDMS substrate by the near-field electrohydrodynamic direct-writing method, a serpentine shaped pressure sensitive unit was prepared, which was encapsulated with the PDMS thin film, and the flexible pressure sensor was fabricated. The sensitivity of the flexible pressure sensor is about 0.39 kPa⁻¹ at 0–0.5 kPa and 1.04 kPa⁻¹ at 0.5–2.4 kPa, and the response/recovery speed is 75 ms/150 ms, respectively. The fabricated flexible pressure sensor can detect a small pressure of about 6.4 Pa. The experimental results show that the fabricated flexible pressure sensor has high sensitivity, fast response capability, and low detection limit. The flexible pressure sensor for electronic skin demonstrates good performance in the application of finger joint movement and word pronunciation recognition, which indicates that it has great potential application in human motion detection and personal health monitoring.

电子皮肤模仿人类皮肤的功能。柔性压力传感器是电子皮肤的重要传感器。尽管柔性压力传感器已经取得了一些进展，但是电子皮肤仍然是具有挑战性的主题，在生物医学，人体运动检测，个人健康监测和其他领域中，其具有良好的压力分辨率，高灵敏度和快速响应能力。通过近场电液动力学直接写法将PEDOT：PSS / GR / SWCNTs多组分溶液直接写在柔性PDMS基板上，制备出蛇形的压敏单元，并用PDMS薄膜封装，制成柔性压力传感器被制造。柔性压力传感器的灵敏度是大约0.39千帕^-1 在0-0.5千帕和1.04千帕^-1 在0.5–2.4 kPa时，响应/恢复速度分别为75 ms / 150 ms。所制造的柔性压力传感器可以检测到大约6.4Pa的小压力。实验结果表明，所制造的柔性压力传感器具有灵敏度高，响应速度快，检测限低的特点。用于电子皮肤的柔性压力传感器在手指关节运动和单词发音识别的应用中表现出良好的性能，这表明它在人体运动检测和个人健康监测中具有巨大的潜力。