Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, NC, 27695, USA.
Department of Mechanical Engineering, Maroun Semaan Faculty of Engineering and Architecture, American University of Beirut, Beirut, 1107-2020, Lebanon.
Adv Mater. 2023 May;35(19):e2205196. doi: 10.1002/adma.202205196. Epub 2023 Mar 9.
This review highlights the unique techniques for patterning liquid metals containing gallium (e.g., eutectic gallium indium, EGaIn). These techniques are enabled by two unique attributes of these liquids relative to solid metals: 1) The fluidity of the metal allows it to be injected, sprayed, and generally dispensed. 2) The solid native oxide shell allows the metal to adhere to surfaces and be shaped in ways that would normally be prohibited due to surface tension. The ability to shape liquid metals into non-spherical structures such as wires, antennas, and electrodes can enable fluidic metallic conductors for stretchable electronics, soft robotics, e-skins, and wearables. The key properties of these metals with a focus on methods to pattern liquid metals into soft or stretchable devices are summari.
这篇综述强调了用于图案化包含镓的液态金属（例如共晶镓铟，EGaIn）的独特技术。这些技术得益于相对于固体金属的两种液态金属的独特属性：1）金属的流动性允许其被注入、喷涂和一般分配。2）固体天然氧化层外壳允许金属粘附在表面上，并以通常由于表面张力而禁止的方式成型。将液态金属塑造成非球形结构，如电线、天线和电极的能力，可以为可拉伸电子产品、软机器人、电子皮肤和可穿戴设备提供流体金属导体。本文重点介绍了将液态金属图案化到柔软或可拉伸器件中的方法，总结了这些金属的关键性质。
