同济大学邱军团队报道了珊瑚启发的太赫兹–红外双隐身电子皮肤。相关研究成果发表在2024年4月23日出版的《德国应用化学》。
具有双重隐形功能的电子皮肤的开发，对于使设备能够在动态电磁环境中有效运行至关重要，从而促进自主感知的智能电磁保护。然而，由于太赫兹（THz）和红外（IR）隐形技术之间的内在矛盾，实现它们之间的兼容性在很大程度上仍未得到探索。
该文中，研究人员受天然珊瑚的启发，提出了一种新颖的类珊瑚多尺度复合泡沫（CMSF），巧妙地调和了这些矛盾。该设计利用了泡沫骨架的导电网络和隔热性能，金属颗粒的损耗效应和低红外发射，以及磁光材料的红外透明性。
这种方法实现了太赫兹红外双隐形电子皮肤的概念。CMSF在太赫兹波段表现出84.8 dB的最大反射损耗，而其红外隐身能力确保了在不同温度下的环境适应性。此外，作为感知环境变化的可穿戴设备，电子皮肤表现出非凡的灵敏度和可靠性。
这种先进的材料将多光谱隐身与传感能力相结合，在从伪装技术到智能穿戴设备的应用领域具有巨大潜力。
附：英文原文
Title: Coral -Inspired Terahertz–Infrared Bi-Stealth Electronic Skin
Author: Shangjing Li, Kaichao Pan, Jiang Du, Zunfeng Liu, Jun Qiu
Issue&Volume: 2024-04-23
Abstract: The development of electronic skin with dual stealth functionality is crucial for enabling devices to operate effectively in dynamic electromagnetic environments, thereby facilitating intelligent electromagnetic protection for autonomous perception. However, achieving compatibility between terahertz (THz) and infrared (IR) stealth technologies remains largely unexplored due to their inherent contradictions. Herein, inspired by natural corals, a novel coral-like multi-scale composite foam (CMSF) was proposed that ingeniously reconciles these contradictions. The design capitalizes on the conductive network and heat insulation properties of the foam skeleton, the loss effects and low infrared emission of metal particles, and the infrared transparency of magneto-optical materials. This approach leads to the realization of a THz-IR bi-stealth electronic skin concept. The CMSF exhibits a maximum reflection loss of 84.8 dB in the terahertz band, while its infrared stealth capability ensures environmental adaptability under varying temperatures. Furthermore, the electronic skin exhibits exceptional sensitivity and reliability as a wearable device for perceiving environmental changes. This advanced material, combining multispectral stealth with sensing capabilities, holds immense potential for applications ranging from camouflage technology to smart wearables.
DOI: 10.1002/anie.202406177
Source: https://onlinelibrary.wiley.com/doi/10.1002/anie.202406177
