Skin-Inspired Electret Nanogenerator with Self-Healing Abilities
Skin-Inspired Electret Nanogenerator with Self-Healing Abilities
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DOI：
10.1016/j.xcrp.2020.100185
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发表时间：
2020-09
期刊：
影响因子：
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通讯作者：
Peng Yang;Xiuli Zhu;Lu Huang;Yin Zhou;Ganqiang Song;Chichu Qin;Dong Wang;Ying‐peng Wu
中科院分区：
文献类型：
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作者：
Peng Yang;Xiuli Zhu;Lu Huang;Yin Zhou;Ganqiang Song;Chichu Qin;Dong Wang;Ying‐peng Wu
近年来，柔性电子技术得到了迅速发展。然而，在使用过程中，由于机械损伤而导致的老化和寿命短的问题仍然令人担忧。在这里，我们提出了一种自愈驻极体纳米发电机（SENG），它可以在机械损伤后恢复其结构和功能，受益于具有可逆亚胺键的可愈合聚合物和液态金属的瞬时愈合能力。经过四个切割愈合周期的破坏性测试后，SENG的输出电流自动恢复到损坏前的原始值。最后，作为一个实用的设备，SENG被证明可以在能量收集和人体生理监测应用中工作。这项研究为提高驻极体发电机或其他遭受机械损伤的柔性电子设备的可靠性和寿命提供了一条可行的途径。
Flexible electronics have been rapidly developed in recent years. However, there are still some concerns about the degradation and short life caused by mechanical damage during their operation. Here, we present a self-healing electret nanogenerator (SENG) that can restore its structure and function after mechanical damage, benefiting from a healable polymer with reversible imine bond and the instantaneous healing ability of liquid metal. After destructive testing comprising four cutting-healing cycles the output current of the SENG autonomously recovers to the original values before damage. Finally, as a practical device, the SENG is demonstrated to work in both energy harvesting and human physiology-monitoring applications. This research offers a feasible route for improving reliability and lifetime of electret generators or other flexible electronics that suffer from mechanical damage.