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Hybrid electronic skin combining triboelectric nanogenerator and humidity sensor for contact and non-contact sensing
Nano Energy ( IF 16.8 ) Pub Date : 2022-06-27 , DOI: 10.1016/j.nanoen.2022.107541
Feifei Yin , Yunjian Guo , Zhicheng Qiu , Hongsen Niu , Wenxiao Wang , Yang Li , Eun Seong Kim , Nam Young Kim

Developing an electronic skin (e-skin) by mimicking a human skin sensory system in which tactile sensing and non-contact sensing complement each is of great significance for helping wearable electronic products to realize the intelligent perception of contact and non-contact information. Here, a hybrid e-skin (CNES) that realizes both contact and non-contact sensing is reported, which consists of a triboelectric nanogenerator (TENG) and a humidity sensor that share a flexible substrate layer. The shared flexible substrate is formed by a hydrothermal method and presents a porous and nanoflake-like morphology surface. By introducing an Ag nanowires (NWs) electrification layer on the upper surface of the shared substrate, CNES exhibits advantages in contact sensing and electrical output performance. Therefore, we achieve the monitoring for falling behaviors with such a CNES serving as a contact sensor and the management of humidity management system with the matrixes of CNESs simulating the self-powered switches. In addition, the SnO2 humidity sensing layer that is introduced on the lower surface of the shared substrate facilitates the CNES to achieve the non-contact monitoring of human respiration signals, offering a reliable pathway to design electronic skin for both contact and non-contact sensing.



中文翻译:

结合摩擦纳米发电机和湿度传感器的混合电子皮肤,用于接触式和非接触式传感

通过模仿人类皮肤感知系统开发触觉感知和非接触感知相辅相成的电子皮肤(e-skin),对于帮助可穿戴电子产品实现接触和非接触信息的智能感知具有重要意义。在这里,报道了一种实现接触式和非接触式传感的混合电子皮肤(CNES),它由共享柔性基板层的摩擦纳米发电机(TENG)和湿度传感器组成。共享的柔性基板是通过水热法形成的,呈现出多孔和纳米片状的形态表面。通过在共享基板的上表面引入 Ag 纳米线 (NWs) 带电层,CNES 在接触传感和电输出性能方面表现出优势。所以,我们用这样的 CNES 作为接触传感器实现了对跌倒行为的监测,并通过模拟自供电开关的 CNES 矩阵实现了湿度管理系统的管理。此外,SnO在共享基板下表面引入的2湿度传感层有助于 CNES 实现对人体呼吸信号的非接触式监测,为设计接触式和非接触式传感的电子皮肤提供了可靠的途径。

更新日期:2022-06-27
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