writer：Qiling?Wang, Peng Xiao*, Wei?Zhou, Yun?Liang, Guangqiang?Yin, Qiu?Yang, Shiao?Wei Kuo, Tao Chen*
keywords：Janus flm; Water depth detection; Vibration perception
source：期刊
specific source：Nano-Micro Lett. 2022, 14, 62
Issue time：2022年

Underwater exploration has been an attractive topic for understanding the very nature of the lakes and even deep oceans. In recent years, extensive eforts have been devoted to developing functional mate?rials 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-efcient, controllable, and scalable way. Inspired by the lateral line of fsh that can sensitively sense the water depth and environmental stimuli, an ultrathin, elastic, and adaptive underwater sensor based on Ecofex matrix with embedded assembled graphene sheets is fabricated. The graphene structured thin flm is endowed with favour?able 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 fsh, the mechanical stimuli from land (e.g. knocking, stomping) and water (e.g. wind blowing, raining, fshing) can also be sensitively captured in real time. This graphene structured thin-flm system is expected to demonstrate signifcant potentials in underwater monitoring, communication, and risk avoidance.