Wearable Circuits Sintered at Room Temperature Directly on the Skin Surface for Health Monitoring
| Autor: | Ziheng Ye, Xuesong Leng, Xiaoming Shi, Lin Tiesong, Zhang Ling, Jiaheng Zhang, Peng He, Senpei Xie, Pengdong Feng, Hongjun Ji, Weiwei Zhao, Huanyu Cheng, Houbing Huang, Xing Ma, Xiangli Liu, Ning Yi, Yaoyin Li, Mingyu Li |
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| Rok vydání: | 2020 |
| Předmět: |
Paper
Silver Materials science Fabrication Surface Properties Metal Nanoparticles 02 engineering and technology Substrate (printing) engineering.material Wearable Electronic Devices 0203 mechanical engineering Coating Nickel Surface roughness Humans General Materials Science Particle Size Lithography Signal conditioning Monitoring Physiologic Skin Electronic circuit business.industry Temperature 021001 nanoscience & nanotechnology Flexible electronics 020303 mechanical engineering & transports engineering Optoelectronics 0210 nano-technology business |
| Zdroj: | ACS Applied Materials & Interfaces. 12:45504-45515 |
| ISSN: | 1944-8252 1944-8244 |
| DOI: | 10.1021/acsami.0c11479 |
| Popis: | A soft body area sensor network presents a promising direction in wearable devices to integrate on-body sensors for physiological signal monitoring and flexible printed circuit boards (FPCBs) for signal conditioning/readout and wireless transmission. However, its realization currently relies on various sophisticated fabrication approaches such as lithography or direct printing on a carrier substrate before attaching to the body. Here, we report a universal fabrication scheme to enable printing and room-temperature sintering of the metal nanoparticle on paper/fabric for FPCBs and directly on the human skin for on-body sensors with a novel sintering aid layer. Consisting of polyvinyl alcohol (PVA) paste and nanoadditives in the water, the sintering aid layer reduces the sintering temperature. Together with the significantly decreased surface roughness, it allows for the integration of a submicron-thick conductive pattern with enhanced electromechanical performance. Various on-body sensors integrated with an FPCB to detect health conditions illustrate a system-level example. |
| Databáze: | OpenAIRE |
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