Lu Guixuan, Ni Erli, Jiang Yanyan, Wu Weikang, Li Hui
Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Jinan, Shandong, 250061, China.
The Institute for Advanced Studies of Wuhan University, Wuhan University, Wuhan, Hubei, 430072, China.
Small. 2024 Mar;20(9):e2304147. doi: 10.1002/smll.202304147. Epub 2023 Oct 24.
Room-temperature gallium-based liquid metals (RT-GaLMs) have garnered significant interest recently owing to their extraordinary combination of fluidity, conductivity, stretchability, self-healing performance, and biocompatibility. They are ideal materials for the manufacture of flexible electronics. By changing the composition and oxidation of RT-GaLMs, physicochemical characteristics of the liquid metal can be adjusted, especially the regulation of rheological, wetting, and adhesion properties. This review highlights the advancements in the liquid metals used in flexible electronics. Meanwhile related characteristics of RT-GaLMs and underlying principles governing their processing and applications for flexible electronics are elucidated. Finally, the diverse applications of RT-GaLMs in self-healing circuits, flexible sensors, energy harvesting devices, and epidermal electronics, are explored. Additionally, the challenges hindering the progress of RT-GaLMs are discussed, while proposing future research directions and potential applications in this emerging field. By presenting a concise and critical analysis, this paper contributes to the advancement of RT-GaLMs as an advanced material applicable for the new generation of flexible electronics.
室温镓基液态金属（RT-GaLMs）因其流动性、导电性、拉伸性、自愈性能和生物相容性的非凡组合，近年来备受关注。它们是制造柔性电子产品的理想材料。通过改变RT-GaLMs的成分和氧化状态，可以调整液态金属的物理化学特性，特别是对流变、润湿和粘附特性的调控。本文综述了柔性电子产品中使用的液态金属的研究进展。同时阐明了RT-GaLMs的相关特性及其用于柔性电子产品加工和应用的基本原理。最后，探讨了RT-GaLMs在自愈电路、柔性传感器、能量收集装置和表皮电子学中的多种应用。此外，还讨论了阻碍RT-GaLMs发展的挑战，同时提出了这一新兴领域未来的研究方向和潜在应用。通过进行简洁而关键的分析，本文有助于推动RT-GaLMs作为适用于新一代柔性电子产品的先进材料的发展。
