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首页> 外文期刊>RSC Advances >Highly stretchable, mechanically stable, and weavable reduced graphene oxide yarn with high NO2 sensitivity for wearable gas sensors
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Highly stretchable, mechanically stable, and weavable reduced graphene oxide yarn with high NO2 sensitivity for wearable gas sensors

机译：高度可拉伸，机械稳定，可编织的氧化石墨烯还原丝，具有高的NO2敏感性，适用于可穿戴式气体传感器

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Stretchable gas sensors are important components of wearable electronic devices used for human safety and healthcare applications. However, the current low stretchability and poor stability of the materials limit their use. Here, we report a highly stretchable, stable, and sensitive NO _(2) gas sensor composed of reduced graphene oxide (RGO) sheets and highly elastic commercial yarns. To achieve high stretchability and good stability, the RGO sensors were fabricated using a pre-strain strategy (strain-release assembly). The fabricated stretchable RGO gas sensors showed high NO _(2) sensitivity (55% at 5.0 ppm) under 200% strain and outstanding mechanical stability (even up to 5000 cycles at 400% applied strain), making them ideal for wearable electronic applications. In addition, our elastic graphene gas sensors can also be woven into fabrics and clothes for the creation of smart textiles. Finally, we successfully fabricated wearable gas-sensing wrist-bands from superelastic graphene yarns and stretchable knits to demonstrate a wearable electronic device.
机译：可拉伸的气体传感器是用于人类安全和医疗保健应用的可穿戴电子设备的重要组件。然而，当前材料的低拉伸性和差的稳定性限制了它们的使用。在这里，我们报告了一种高度可拉伸，稳定且灵敏的NO _（2）气体传感器，该传感器由还原的氧化石墨烯（RGO）薄板和高弹性的商用纱线组成。为了实现高拉伸性和良好的稳定性，使用预应变策略（应变释放组件）制造了RGO传感器。所制造的可拉伸RGO气体传感器在200％应变下显示出高的NO_（2）灵敏度（5.0 ppm时为55％）和出色的机械稳定性（即使在施加400％应变时甚至高达5000次循环），也使其成为可穿戴电子应用的理想选择。此外，我们的弹性石墨烯气体传感器还可以织入织物和衣服中，以制造智能纺织品。最后，我们成功地用超弹性石墨烯纱线和可伸缩编织物制造了可穿戴的气体传感腕带，以展示可穿戴电子设备。

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