Highly Conductive, Scalable, and Machine Washable Graphene-Based E-Textiles for Multifunctional Wearable Electronic Applications
Highly Conductive, Scalable, and Machine Washable Graphene-Based E-Textiles for Multifunctional Wearable Electronic Applications
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DOI：
10.1002/adfm.202000293
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发表时间：
2020-06-01
影响因子：
19
通讯作者：
Karim, Nazmul
中科院分区：
文献类型：
--
作者：
Afroj, Shaila;Tan, Sirui;Karim, Nazmul
石墨烯基纺织品因其优于金属基技术而显示出下一代可穿戴电子应用的前景。然而，目前基于还原氧化石墨烯（rGO）的电子纺织品（e-textiles）具有较差的导电性和较高的功耗。在这里，报道了高导电性、超柔性和可机洗的石墨烯基可穿戴电子纺织品。使用简单且可扩展的垫-干燥-固化方法以及随后的辊压缩和石墨烯薄片的精细封装。由此生产的石墨烯基可穿戴电子纺织品提供了石墨烯电子纺织品上有史以来报道的最低薄层电阻（约为11.9 Ω sq（-1）），并且即使在10次家庭洗衣洗涤循环之后也具有高导电性。此外，它表现出极高的柔性、可弯曲性和可压缩性，因为它在家庭衣物洗涤循环之前和之后在向前和向后方向上都显示出可重复的响应。这种基于石墨烯的高导电可穿戴电子纺织品的可扩展性和多功能应用被证明是超柔性超级电容器和皮肤安装的应变传感器。
Graphene-based textiles show promise for next-generation wearable electronic applications due to their advantages over metal-based technologies. However, current reduced graphene oxide (rGO)-based electronic textiles (e-textiles) suffer from poor electrical conductivity and higher power consumption. Here, highly conductive, ultraflexible, and machine washable graphene-based wearable e-textiles are reported. A simple and scalable pad-dry-cure method with subsequent roller compression and a fine encapsulation of graphene flakes is used. The graphene-based wearable e-textiles thus produced provide lowest sheet resistance (approximate to 11.9 omega sq(-1)) ever reported on graphene e-textiles, and highly conductive even after 10 home laundry washing cycles. Moreover, it exhibits extremely high flexibility, bendability, and compressibility as it shows repeatable response in both forward and backward directions before and after home laundry washing cycles. The scalability and multifunctional applications of such highly conductive graphene-based wearable e-textiles are demonstrated as ultraflexible supercapacitor and skin-mounted strain sensors.