Micro-Nano System Research Center, Key Laboratory of Advanced Transducers and Intelligent Control System of Ministry of Education and Shanxi Province, College of Information and Computer, Taiyuan University of Technology, Taiyuan 030024, China.
Micro-Nano System Research Center, Key Laboratory of Advanced Transducers and Intelligent Control System of Ministry of Education and Shanxi Province, College of Information and Computer, Taiyuan University of Technology, Taiyuan 030024, China.
J Colloid Interface Sci. 2021 Nov 15;602:452-458. doi: 10.1016/j.jcis.2021.06.041. Epub 2021 Jun 10.
The bionic application of electronic skin (e-skin) requires a high resolution close to that of human skin, while its long-term attachment to human body or robotic skin requires a porous structure that is air permeable and enables hair growth. To simultaneously meet the requirements of high resolution and porous structure, as well as improve the sensing performance, we propose a fully 3D printed e-skin with high-resolution and air permeable porous structure. The flexible substrate and electrodes are 3D printed by a direct ink writing extrusion printer. The sensitive material is 3D printed by a self-made low-viscosity liquid extrusion 3D print module. This e-skin has a high sensor density of 100/cm, which is close to the resolution of the human fingertip skin. The piezoresistive sensor units of e-skin exhibit a highly linear resistance response and a relatively performance consistency between devices. Owing to the porous and breathable structure, better human comfort and mechanical heat dissipation are realized. This high-resolution e-skin is successfully applied to identify small-sized objects with complex contours.
电子皮肤（e-skin）的仿生应用需要接近人体皮肤的高分辨率，而其长期附着在人体或机器人皮肤需要具有多孔结构，透气且允许毛发生长。为了同时满足高分辨率和多孔结构的要求，并提高传感性能，我们提出了一种具有高分辨率和透气多孔结构的全 3D 打印电子皮肤。柔性基底和电极由直接墨水书写挤出打印机 3D 打印而成。敏感材料由自制的低粘度液体挤出 3D 打印模块 3D 打印而成。这种电子皮肤具有 100/cm 的高传感器密度，接近人指尖皮肤的分辨率。电子皮肤的压阻式传感器单元具有高度线性的电阻响应和器件之间相对一致的性能。由于多孔透气结构，实现了更好的人体舒适度和机械散热。这种高分辨率的电子皮肤成功地应用于识别具有复杂轮廓的小型物体。
