Jian Gang, Yang Ning, Zhu Shangtao, Meng Qingzhen, Ouyang Chun
Shenzhen Institute of Advanced Electronic Materials, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China.
School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, China.
Polymers (Basel). 2023 May 26;15(11):2462. doi: 10.3390/polym15112462.
Hybrid nanogenerators based on the principle of surface charging of functional films are significant in self-powering sensing and energy conversion devices due to their multiple functions and high conversion efficiency, although applications remain limited due to a lack of suitable materials and structures. Here, we investigate a triboelectric-piezoelectric hybrid nanogenerator (TPHNG) in the form of a mousepad for computer user behavior monitoring and energy harvesting. Triboelectric and piezoelectric nanogenerators with different functional films and structures work independently to detect sliding and pressing movements, and the profitable coupling between the two nanogenerators leads to enhanced device outputs/sensitivity. Different mouse operations such as clicking, scrolling, taking-up/putting-down, sliding, moving rate, and pathing can be detected by the device via distinguishable patterns of voltage ranging from 0.6 to 36 V. Based on operation recognition, human behavior monitoring is realized, with monitoring of tasks such as browsing a document and playing a computer game being successfully demonstrated. Energy harvesting from mouse sliding, patting, and bending of the device is realized with output voltages up to 37 V and power up to 48 μW while exhibiting good durability up to 20,000 cycles. This work presents a TPHNG utilizing surface charging for self-powered human behavior sensing and biomechanical energy harvesting.
基于功能薄膜表面充电原理的混合纳米发电机因其多功能性和高转换效率，在自供电传感和能量转换设备中具有重要意义，尽管由于缺乏合适的材料和结构，其应用仍然有限。在此，我们研究了一种鼠标垫形式的摩擦电-压电混合纳米发电机（TPHNG），用于计算机用户行为监测和能量收集。具有不同功能薄膜和结构的摩擦电和压电纳米发电机独立工作以检测滑动和按压动作，并且这两种纳米发电机之间的有益耦合导致设备输出/灵敏度提高。该设备可以通过0.6至36 V的可区分电压模式检测不同的鼠标操作，如点击、滚动、拿起/放下、滑动、移动速率和路径规划。基于操作识别，实现了人类行为监测，成功展示了对浏览文档和玩电脑游戏等任务的监测。通过鼠标滑动、拍打和弯曲设备实现能量收集，输出电压高达37 V，功率高达48 μW，同时在高达20,000次循环时表现出良好的耐久性。这项工作展示了一种利用表面充电实现自供电人类行为传感和生物机械能收集的TPHNG。
