Local Crack-Programmed Gold Nanowire Electronic Skin Tattoos for In-Plane Multisensor Integration
Local Crack-Programmed Gold Nanowire Electronic Skin Tattoos for In-Plane Multisensor Integration
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DOI：
10.1002/adma.201903789
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发表时间：
2019-08-25
影响因子：
29.4
通讯作者：
Cheng, Wenlong
中科院分区：
文献类型：
--
作者：
Gong, Shu;Yap, Lim Wei;Cheng, Wenlong
灵敏、具体而又多功能的纹身类电子设备是“随时随地”健康监测的理想可穿戴系统，因为它们几乎可以成为人类皮肤的一部分，提供一种无负担的“无感”穿戴体验。报道了一种皮肤状的多功能电子纹身，完全由黄金制成，使用了站立的蘑菇状垂直排列的纳米线膜，并结合了可编程的局部破解技术。与以往的多功能系统不同，互连和多路复用特定传感器所涉及的集成电路只需要一种材料类型，从而避免了使用复杂的多材料接口。这是可能的，因为可编程局部破裂技术允许通过调整局部裂纹大小、形状和方向来任意微调弹性金导体的性能，从应变不敏感到高度应变敏感--这是以前的整体破裂技术无法实现的能力。此外，还展示了应变/压力传感器、各向异性取向特定传感器、应变不敏感可伸缩互连、温度传感器、葡萄糖传感器和乳酸传感器的平面内集成，无需焊接或粘合。这一策略为下一代可穿戴电子纹身的设计开辟了一条新的通用路线。
Sensitive, specific, yet multifunctional tattoo-like electronics are ideal wearable systems for "any time, any where" health monitoring because they can virtually become parts of the human skin, offering a burdenless "unfeelable" wearing experience. A skin-like, multifunctional electronic tattoo made entirely from gold using a standing enokitake-mushroom-like vertically aligned nanowire membrane in conjunction with a programmable local cracking technology is reported. Unlike previous multifunctional systems, only a single material type is needed for the integrated gold circuits involved in interconnects and multiplexed specific sensors, thereby avoiding the use of complex multimaterials interfaces. This is possiblebecause the programmable local cracking technology allows for the arbitrary fine-tuning of the properties of elastic gold conductors from strain-insensitive to highly strain-sensitive simply by adjusting localized crack size, shape, and orientations-a capability impossible to achieve with previous bulk cracking technology. Furthermore, in-plane integration of strain/pressure sensors, anisotropic orientation-specific sensors, strain-insensitive stretchable interconnects, temperature sensors, glucose sensors, and lactate sensors without the need of soldering or gluing are demonstrated. This strategy opens a new general route for the design of next-generation wearable electronic tattoos.