Xian Haijie, Li Lichao, Wen Ping, Bai Haiyang, Wang Weihua, Liu Yanhui
Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China.
Nanoscale. 2021 Jan 28;13(3):1800-1806. doi: 10.1039/d0nr07307e.
Stretchable electrodes are essential components for wearable electronics. However, the stretchability of the electrodes is often achieved with the sacrifice of electronic conductivity along with huge variation in resistance. In this work, stretchable metallic glass electrodes (MG-electrodes) that have both high electronic conductivity and excellent electronic stability are developed. The stretchability of the MG-electrode is significantly improved by shrinking MG films deposited on substrates with pre-strain. We demonstrate two types of MG-electrodes. One is a transparent MG-electrode for uniaxial stretching, and the other with better conductivity is for biaxial stretching. Compared with previous electrodes, the MG-electrodes exhibit a combination of high conductivity and negligible resistivity change (<5%), making them promising candidates for interconnections. Along with the excellent corrosion resistance of metallic glasses, the electrodes may be used in harsh environments.
可拉伸电极是可穿戴电子产品的关键组件。然而，电极的拉伸性通常是以牺牲电子导电性以及电阻的巨大变化为代价来实现的。在这项工作中，开发出了兼具高电子导电性和出色电子稳定性的可拉伸金属玻璃电极（MG电极）。通过对预应变状态下沉积在基底上的MG薄膜进行收缩处理，显著提高了MG电极的拉伸性。我们展示了两种类型的MG电极。一种是用于单轴拉伸的透明MG电极，另一种具有更好导电性的用于双轴拉伸。与先前的电极相比，MG电极展现出高导电性和可忽略不计的电阻率变化（<5%）的组合，使其成为互连应用的有前景的候选材料。连同金属玻璃优异的耐腐蚀性，这些电极可用于恶劣环境。
