Electromagnetic Functions Modulation of Recycled By-Products by Heterodimensional Structure  

作　　者：Ze Nan Wei Wei Zhenhua Lin Ruimei Yuan Miao Zhang Jincheng Zhang Jianyong Ouyang Jingjing Chang Hejun Li Yue Hao 

机构地区：[1]State Key Laboratory of Wide-Bandgap Semiconductor Devices and Integrated Technology,School of Microelectronics,Xidian University,Xi’an 710071,People’s Republic of China [2]State Key Laboratory of Solidification Processing,Shaanxi Province Key Laboratory of Fiber Reinforced Light Composite Materials,Carbon/Carbon Composites Research Center,Northwestern Polytechnical University,Xi’an 710072,People’s Republic of China [3]Advanced Interdisciplinary Research Center for Flexible Electronics,Xidian University,Xi’an 710071,People’s Republic of China [4]Department of Materials Science and Engineering,National University of Singapore,7 Engineering Drive 1,Singapore 117574,Singapore

出　　处：《Nano-Micro Letters》2025年第6期264-278,共15页纳微快报(英文版)

基　　金：supported by the National Key Research and Development Program of China(Grant 2021YFA0715600,2021YFA0717700,2018YFB2202900);National Natural Science Foundation of China(52192610,62274127,62374128);the Fundamental Research Funds for the Central Universities,2023 Qinchuangyuan Construction Two Chain Integration Special Project(23LLRH0043);Key Research and Development Program of Shaanxi Province(Grant 2024GX-YBXM-512);Foundation of Zhejiang Provincial Key Lab of Solar Energy Utilization&Energy Saving Technology(ZJS-OP-2020-11);GuangDong Basic and Applied Basic Research Foundation(Grant 2022A1515111220);the fund of the state Key Laboratory of Solidification Processing in NPU(Grant No.SKLSP202317);Young Elite Scientists Sponsorship Program by CAST,Doctoral Student Special Plan.

摘　　要：One of the significant technological challenges in safeguarding electronic devices pertains to the modulation of electromagnetic(EM)wave jamming and the recycling of defensive shields.The synergistic effect of heterodimensional materials can effectively enable the manipulation of EM waves by altering the nanostructure.Here we propose a novel approach for upcycling by-products of silver nanowires that can fabricate shape-tunable aerogels which enable the modulation of its interaction with microwaves by heterodimensional structure of byproducts.By-product heterodimensionality was used to design EM-wave-jamming-dissipation structures and therefore two typical tunable aerogel forms were studied.The first tunable form was aerogel film,which shielded EM interference(EMI shielding effectiveness(EMI SE)>89 dB)and the second tunable form was foam,which performed dual EM functions(SE>30 dB&reflective loss(RL)<-35 dB,effective absorption bandwidth(EAB)>6.7 GHz).We show that secondary recycled aerogels retain nearly all of their EM protection properties,making this type of closed-loop cycle an appealing option.Our findings pave the way for the development of adaptive EM functions with nanoscale regulation in a green and closed-loop cycle,and they shed light on the fundamental understanding of microwave interactions with heterodimensional structures.

关 键 词：Silver nanowires Electromagnetic shielding Microwave absorption Recycled aerogels 

分 类 号：TN2[电子电信—物理电子学]