Jang Sukjin, Choi Daehwan, Yang Suk, Kwon Jang-Yeon
School of Integrated Technology, Yonsei University Incheon 21983 Republic of Korea
Yonsei Institute of Convergence Technology, Yonsei University Incheon 21983 Republic of Korea.
RSC Adv. 2019 Nov 13;9(63):36960-36966. doi: 10.1039/c9ra08188g. eCollection 2019 Nov 11.
Recently, electronic skin that mimics human skin in measuring tactile stimuli, temperature, and humidity and having a self-healing function was developed. Furthermore, with the advances in the field of artificial intelligence and health monitoring, various materials and methods have been studied for e-skin. The limitations to work on actual human skin include device flexibility and large-area applications through array structures, and many studies are underway to overcome these problems. Polymeric materials containing ionic liquids can be used to easily fabricate devices in the solid state. They are highly sensitive to both pressure and temperature, making them suitable for multi-sensing devices. Resistive and capacitive sensors have the advantage of having a simple structure, which makes them easy to fabricate. In a single device, both types work well. For resistive sensors, the temperature sensitivity (1.1/°C) is relatively high. Conversely, capacitive sensors have a low temperature sensitivity (0.3/°C). However, they have the advantage of being uniformly variable under each condition and having a smaller error range. In the array structure, independent flex and thermo sensors are arranged repeatedly. The resistive type shows changes in temperature and bending, but in the capacitive type, it is difficult to obtain results from the pixels due to parasitic capacitance.
最近，开发出了一种能模仿人类皮肤来测量触觉刺激、温度和湿度并具有自愈功能的电子皮肤。此外，随着人工智能和健康监测领域的发展，人们对用于电子皮肤的各种材料和方法进行了研究。在实际人体皮肤上应用所面临的限制包括设备的柔韧性以及通过阵列结构实现大面积应用，目前正在进行许多研究以克服这些问题。含有离子液体的聚合物材料可用于轻松制造固态设备。它们对压力和温度都高度敏感，这使其适用于多传感设备。电阻式和电容式传感器具有结构简单的优点，这使得它们易于制造。在单个设备中，这两种类型都能很好地工作。对于电阻式传感器，温度灵敏度（1.1/°C）相对较高。相反，电容式传感器的温度灵敏度较低（0.3/°C）。然而，它们的优点是在每种条件下变化均匀且误差范围较小。在阵列结构中，独立的挠曲和热传感器重复排列。电阻式类型显示出温度和弯曲的变化，但在电容式类型中，由于寄生电容，很难从像素中获得结果。
