Yi Ning, Shen Mingzhou, Erdely Daniel, Cheng Huanyu
Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA, 16802, USA.
Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA, 16802, USA.
Trends Analyt Chem. 2020 Dec;133. doi: 10.1016/j.trac.2020.116085. Epub 2020 Oct 21.
The recent advent of stretchable gas sensors demonstrates their capabilities to detect not only gaseous biomarkers from the human body but also toxic gas species from the exposed environment. To ensure accurate gas detection without device breakdown from the mechanical deformations, the stretchable gas sensors often rely on the direct integration of gas-sensitive nanomaterials on the stretchable substrate or fibrous network, as well as being configured into stretchable structures. The nanomaterials in the forms of nanoparticles, nanowires, or thin-films with nanometer thickness are explored for a variety of sensing materials. The commonly used stretchable structures in the stretchable gas sensors include wrinkled structures from a pre-strain strategy, island-bridge layouts or serpentine interconnects, strain isolation approaches, and their combinations. This review aims to summarize the recent advancement in novel nanomaterials, sensor design innovations, and new fabrication approaches of stretchable gas sensors.
可拉伸气体传感器的最新出现展示了它们不仅能够检测来自人体的气态生物标志物，还能检测来自暴露环境中的有毒气体种类。为了确保在不因机械变形而导致器件故障的情况下进行准确的气体检测，可拉伸气体传感器通常依赖于将气敏纳米材料直接集成在可拉伸基板或纤维网络上，以及将其配置成可拉伸结构。纳米颗粒、纳米线或纳米厚度薄膜形式的纳米材料被探索用作各种传感材料。可拉伸气体传感器中常用的可拉伸结构包括预应变策略产生的皱纹结构、岛桥布局或蜿蜒互连、应变隔离方法及其组合。本综述旨在总结可拉伸气体传感器在新型纳米材料、传感器设计创新和新制造方法方面的最新进展。
