Gong He, Ni Lingyun, Zhu Hang, Chao Hongli, Luo Lan, Chen Mengchao, Wei JinFan, Hu Tianli, Guo Ying, Cheng Zhiqiang, Mu Ye, Yu Xiuling
College of Information Technology, Jilin Agricultural University, Changchun, 130118, China.
Jilin Province Intelligent Environmental Engineering Research Center, Changchun, 130118, China.
Mater Horiz. 2025 Aug 26;12(17):6793-6803. doi: 10.1039/d5mh00965k.
Human skin has the complex function of sensing pressure, strain, friction, temperature, and humidity. Flexible electronic skin (e-skin) plays a key role in advancing intelligent human-computer interaction and wearable health monitoring devices. However, achieving effective integration of multifunctional sensors while minimizing potential interference between them is a significant challenge. In this paper, we use an improved electrostatic spinning layered integration process to fabricate a sandwich-structured CNFs/AlO-SiC SBD pressure-temperature dual-mode e-skin, in which the top and bottom layers are composed of the temperature-sensitive material SiC SBD, which also functions as capacitive electrodes, forming a capacitive pressure sensor together with the pressure-sensitive material CNFs/AlO in the middle layer. The experimental results show that the e-skin exhibits good performance in pressure and temperature tests: the response/recovery time of the pressure sensor is 0.52 s/0.53 s in the pressure range of 0-5 kPa, and the sensitivity reaches 0.366 kPa in the range of 0-10 kPa. In the range of 25-50 °C, the response/recovery time of the top layer temperature sensor is 5.12 s/8.97 s, and the sensitivity can reach -1.291 °C. In the range of 25-50 °C, the response/recovery time of the bottom layer temperature sensor is 4.96 s/8.92 s, and the sensitivity can reach -1.614 °C. In this study, the preparation of CNFs/AlO-SiC SBD pressure-temperature dual-mode e-skin is described, which has good repeatability and independent sensing characteristics, unaffected by interference from other conditions. In addition, its excellent flexibility allows it to accurately perceive human movements and physiological signals such as gesture recognition and breath monitoring, while also detecting the spatial distribution of external stimuli, showing widespread application potential in intelligent human-computer interaction and wearable health monitoring devices.
人类皮肤具有感知压力、应变、摩擦、温度和湿度的复杂功能。柔性电子皮肤（e-皮肤）在推动智能人机交互和可穿戴健康监测设备方面发挥着关键作用。然而，在实现多功能传感器的有效集成同时将它们之间的潜在干扰降至最低是一项重大挑战。在本文中，我们使用改进的静电纺丝分层集成工艺来制造一种三明治结构的CNFs/AlO-SiC SBD压力-温度双模e-皮肤，其中顶层和底层由温度敏感材料SiC SBD组成，其还用作电容电极，与中间层的压敏材料CNFs/AlO一起形成电容式压力传感器。实验结果表明，该e-皮肤在压力和温度测试中表现出良好的性能：压力传感器在0-5 kPa压力范围内的响应/恢复时间为0.52 s/0.53 s，在0-10 kPa范围内灵敏度达到0.366 kPa。在25-50°C范围内，顶层温度传感器的响应/恢复时间为5.12 s/8.97 s，灵敏度可达-1.291°C。在25-50°C范围内，底层温度传感器的响应/恢复时间为4.96 s/8.92 s，灵敏度可达-1.614°C。在本研究中，描述了CNFs/AlO-SiC SBD压力-温度双模e-皮肤的制备，其具有良好的重复性和独立传感特性，不受其他条件干扰的影响。此外，其出色的柔韧性使其能够准确感知人类运动和生理信号，如手势识别和呼吸监测，同时还能检测外部刺激的空间分布，在智能人机交互和可穿戴健康监测设备中显示出广泛的应用潜力。
