Heterodimensional Structure Switching Multispectral Stealth and Multimedia Interaction Devices.
Heterodimensional Structure Switching Multispectral Stealth and Multimedia Interaction Devices.
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DOI：
10.1002/advs.202302361
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发表时间：
2023-09
期刊：
影响因子：
15.1
通讯作者：
Cao, Wen-Qiang
中科院分区：
文献类型：
--
作者：
Shu, Jin-Cheng;Cao, Mao-Sheng;Zhang, Yan-Lan;Cao, Wen-Qiang
关键词：
轻质、柔性、高能量衰减的电子材料在电磁隐身和智能设备中占有无懈可击的地位。其中，由于其独特的电学、磁学、热学和光学性质，新兴的异维结构引起了材料、化学、电子等领域的广泛关注。本文提出了一种由0D磁团簇和2D导电层交替组装而成的本征异维结构，并通过定制氧化分子层沉积(OMLD)循环次数来灵活地设计其宏观电磁性质。这种独特的异维结构具有高度有序的空间分布，实现了电子-偶极和磁电介质的双重协同作用，表现出高的电磁能量衰减(160%)和显著的介电损耗正切(≈200%)。它可以响应不同频段的电磁波，实现多光谱隐身，覆盖可见光、红外辐射和千兆赫波。重要的是，用异维结构构造了两种巧妙的信息交互装置。分层天线允许通过OMLD周期精确定位工作频段(从S到Ku频段)。高灵敏度的应变成像设备为视觉交互开辟了新的天地。这项工作为发展先进的微纳材料和智能器件提供了创造性的见解。提出了一种由0D磁团簇和2D导电层交替组装而成的新型异维结构，具有高效的电磁能量衰减和转换能力，可以实现多光谱隐身。构建了两种信息交互装置，为无线通信开辟了新的天地。这项工作为开发先进材料和智能设备提供了创造性的见解。
Lightweight and flexible electronic materials with high energy attenuation hold an unassailable position in electromagnetic stealth and intelligent devices. Among them, emerging heterodimensional structure draws intensive attention in the frontiers of materials, chemistry, and electronics, owing to the unique electronic, magnetic, thermal, and optical properties. Herein, an intrinsic heterodimensional structure consisting of alternating assembly of 0D magnetic clusters and 2D conductive layers is developed, and its macroscopic electromagnetic properties are flexibly designed by customizing the number of oxidative molecular layer deposition (oMLD) cycles. This unique heterodimensional structure features highly ordered spatial distribution, with an achievement of electron‐dipole and magnetic–dielectric double synergies, which exhibits the high attenuation of electromagnetic energy (160) and substantial improvement of dielectric loss tangent (≈200%). It can respond to electromagnetic waves of different bands to achieve multispectral stealth, covering visible light, infrared radiation, and gigahertz wave. Importantly, two kinds of ingenious information interaction devices are constructed with heterodimensional structure. The hierarchical antennas allow precise targeting of operating bands (S‐ to Ku‐ bands) by oMLD cycles. The strain imaging device with high sensitivity opens a new horizon for visual interaction. This work provides a creative insight for developing advanced micro–nano materials and intelligent devices. A novel heterodimensional structure consisting of alternating assembly of 0D magnetic clusters and 2D conductive layers is developed, with high‐efficiency attenuation and conversion of electromagnetic energy, which can achieve multispectral stealth. Two kinds of information interaction devices are constructed, opening up a new horizon for wireless communication. This work provides a creative insight for developing advanced materials and intelligent devices.
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