Wang Qiling, Xiao Peng, Zhou Wei, Liang Yun, Yin Guangqiang, Yang Qiu, Kuo Shiao-Wei, Chen Tao
Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Zhongguan West Road 1219, Ningbo, 315201, People's Republic of China.
School of Chemical Sciences, University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing, 100049, People's Republic of China.
Nanomicro Lett. 2022 Feb 15;14(1):62. doi: 10.1007/s40820-022-00799-4.
Underwater exploration has been an attractive topic for understanding the very nature of the lakes and even deep oceans. In recent years, extensive efforts have been devoted to developing functional materials and their integrated devices for underwater information capturing. However, there still remains a great challenge for water depth detection and vibration monitoring in a high-efficient, controllable, and scalable way. Inspired by the lateral line of fish that can sensitively sense the water depth and environmental stimuli, an ultrathin, elastic, and adaptive underwater sensor based on Ecoflex matrix with embedded assembled graphene sheets is fabricated. The graphene structured thin film is endowed with favourable adaptive and morphable features, which can conformally adhere to the structural surface and transform to a bulged state driven by water pressure. Owing to the introduction of the graphene-based layer, the integrated sensing system can actively detect the water depth with a wide range of 0.3-1.8 m. Furthermore, similar to the fish, the mechanical stimuli from land (e.g. knocking, stomping) and water (e.g. wind blowing, raining, fishing) can also be sensitively captured in real time. This graphene structured thin-film system is expected to demonstrate significant potentials in underwater monitoring, communication, and risk avoidance.
水下探索一直是理解湖泊乃至深海本质的一个引人关注的话题。近年来，人们致力于开发用于水下信息采集的功能材料及其集成器件。然而，以高效、可控和可扩展的方式进行水深检测和振动监测仍然面临巨大挑战。受鱼类侧线能灵敏感知水深和环境刺激的启发，制备了一种基于Ecoflex基质并嵌入组装石墨烯片的超薄、弹性且自适应的水下传感器。石墨烯结构薄膜具有良好的自适应和可变形特性，能够保形地附着在结构表面，并在水压驱动下转变为凸起状态。由于引入了基于石墨烯的层，集成传感系统能够在0.3 - 1.8米的宽范围内主动检测水深。此外，与鱼类类似，来自陆地的机械刺激（如敲击、跺脚）和水的机械刺激（如刮风、下雨、捕鱼）也能被实时灵敏捕捉。这种石墨烯结构薄膜系统有望在水下监测、通信和风险规避方面展现出巨大潜力。
