Liu Jinmei, Li Saixuan, Yang Maosen, Wang Yuxin, Cui Nuanyang, Gu Long
School of Advanced Materials and Nanotechnology, Xidian University, Xi'an, China.
Front Bioeng Biotechnol. 2022 Apr 13;10:889364. doi: 10.3389/fbioe.2022.889364. eCollection 2022.
Stretchable triboelectric nanogenerators have attracted increasing interests in the field of Internet of Things and sensor network. Therefore, great efforts have been made to realize the stretchability of electronic devices elaborated material configurations and ingenious device designs. In this work, a flexible and stretchable TENG is developed with a coaxial spring-like structure. The unique structure allows it to generate electrical energy for different degrees of stretching deformations. Its output demonstrates good response to the strain and frequency of the mechanical deformation. At the same time, it exhibits excellent stability and washability. The TENG can be worn on the human fingers, elbow, and knee to monitor the body activities. Furthermore, a self-powered temperature sensor system is fabricated by integrating the TENG with a temperature sensor to identify the operating ambient temperature in real time. A combination of this flexible and stretchable TENG with body motions and a temperature sensor brings a novel insight into wearable functional electronics and user-friendly health monitoring, which has an important basic research significance and practical application value in biometric systems.
可拉伸摩擦纳米发电机在物联网和传感器网络领域引起了越来越多的关注。因此，人们通过精心设计材料结构和巧妙的器件设计，为实现电子设备的可拉伸性付出了巨大努力。在这项工作中，开发了一种具有同轴弹簧状结构的柔性可拉伸摩擦纳米发电机。这种独特的结构使其能够为不同程度的拉伸变形产生电能。其输出对机械变形的应变和频率表现出良好的响应。同时，它具有出色的稳定性和耐洗性。该摩擦纳米发电机可以佩戴在人体手指、肘部和膝盖上，以监测身体活动。此外，通过将摩擦纳米发电机与温度传感器集成，制造了一种自供电温度传感器系统，以实时识别工作环境温度。这种柔性可拉伸摩擦纳米发电机与身体运动以及温度传感器的结合，为可穿戴功能电子学和用户友好型健康监测带来了新的见解，在生物识别系统中具有重要的基础研究意义和实际应用价值。
