Fluid-Actuated Nano–Micro–Macro Structure Morphing Enables Smart Multispectrum Compatible Stealth

IF 9.6 1区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Nano Letters Pub Date : 2024-12-19 DOI:10.1021/acs.nanolett.4c05494

Xiuyue Yang, Leilei Liang, Chen Li, Baoshan Zhang, Yue Zhao, Shujuan Tan, Guangbin Ji

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引用次数: 0

Abstract

Modern detection technology has driven camouflage technology toward multispectral compatibility and dynamic regulation. However, developing such stealth technologies is challenging due to different frequency-band principles. Here, this work proposes a design concept for a fluid-actuated multispectral compatible smart stealth device that employs a deformable mechanochromic layer/elastomer with a channeled dielectric layer. After fluid actuation, the deformable elastomer layer transmits mechanical strain to the mechanochromic layer, thereby altering the visible reflectance wavelengths in [568, 699] nm. Concurrently, the pumped-in liquid reconfigures the spatial structure parameter to alter microwave resonance and diffraction for dynamic radar absorption, enabling dynamic radar absorption with significant broadband absorption at [8.16, 18.0] GHz. Using the heat-absorption property also achieves dynamic infrared stealth, shown by a ΔT ≈ 16.5 °C temperature difference. Additionally, the device exhibits a rapid response time (∼1 s), excellent cycling performance (100 cycles), and programmability (10 codes), offering a new stealth strategy.

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现代探测技术促使伪装技术向多光谱兼容和动态调节方向发展。然而，由于频段原理不同，开发这种隐形技术具有挑战性。在此，本研究提出了一种流体驱动多光谱兼容智能隐形装置的设计理念，该装置采用了可变形机械变色层/弹性体和通道式电介质层。流体驱动后，可变形弹性体层将机械应变传递到机械变色层，从而改变[568, 699] nm 波长的可见光反射波长。与此同时，泵入液体会重新配置空间结构参数，以改变微波共振和衍射，从而实现动态雷达吸收，在[8.16, 18.0] GHz 范围内实现显著的宽带吸收。利用吸热特性还能实现动态红外隐身，ΔT ≈ 16.5 °C 的温差就证明了这一点。此外，该器件还具有快速响应时间（∼1 秒）、出色的循环性能（100 次循环）和可编程性（10 个代码），提供了一种新的隐身策略。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Nano Letters 工程技术-材料科学：综合

CiteScore

16.80

自引率

2.80%

发文量

1182

审稿时长

1.4 months

期刊介绍： Nano Letters serves as a dynamic platform for promptly disseminating original results in fundamental, applied, and emerging research across all facets of nanoscience and nanotechnology. A pivotal criterion for inclusion within Nano Letters is the convergence of at least two different areas or disciplines, ensuring a rich interdisciplinary scope. The journal is dedicated to fostering exploration in diverse areas, including: - Experimental and theoretical findings on physical, chemical, and biological phenomena at the nanoscale - Synthesis, characterization, and processing of organic, inorganic, polymer, and hybrid nanomaterials through physical, chemical, and biological methodologies - Modeling and simulation of synthetic, assembly, and interaction processes - Realization of integrated nanostructures and nano-engineered devices exhibiting advanced performance - Applications of nanoscale materials in living and environmental systems Nano Letters is committed to advancing and showcasing groundbreaking research that intersects various domains, fostering innovation and collaboration in the ever-evolving field of nanoscience and nanotechnology.