摩擦电效应
材料科学
可穿戴计算机
纳米发生器
能量收集
可穿戴技术
光电子学
纳米技术
计算机科学
能量(信号处理)
复合材料
压电
嵌入式系统
数学
统计
作者
Guojin Liang,Zhaoheng Ruan,Zhuoxin Liu,Hongfei Li,Zifeng Wang,Zijie Tang,Funian Mo,Qi Yang,Longtao Ma,Donghong Wang,Chunyi Zhi
标识
DOI:10.1002/aelm.201900553
摘要
Abstract An all‐polymer design to realize multifunctional and wearable smart skin devices with energy‐harvesting, touch‐sensing, and exteroception‐visualizing capabilities is reported. The design process of the skin, material selection principles, and performance under different mechanical manipulations are systematically elaborated. Stretchable hydrogel electrodes are sandwiched by a triboelectric layer and a ZnS phosphor–embedded mechanoluminescent layer, while the mechanical stability is ensured by an in situ assembly configuration. Regarding the performance of the three capabilities, first, the smart skin can function as a triboelectric nanogenerator and delivers an output peak voltage of 180 V and a power density of 625 µW cm −2 with superb cyclic stability throughout 10 000 continuous contact–separation cycles. Second, the skin can detect a pressure limit of 0.58 kPa with a sensitivity of 0.23 kPa −1 , where the location detection can be achieved by applying a pixel configuration to the device. Third, a light‐emitting response can be stimulated to allow for visualization of the magnitude and location of an applied force. Remarkably, the as‐developed smart skin exhibits robust vitality without degradation of functionality, even when the device is subjected to a high strain of 700%.
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