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Enhanced radar and infrared compatible stealth properties in hierarchical SnO2@ZnO nanostructures
Affiliation:1. Center for Advanced Materials and Energy, Xihua University, Chengdu, 610039, PR China;2. National Engineering Research Center of Electromagnetic Radiation Control Materials, UESTC, Chengdu, 610054, PR China;1. Department of Applied Chemistry, College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211100, PR China;2. National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, PR China;1. State Key Laboratory of Pulsed Power Laser Technology, Hefei 230037, China;2. National Laboratory for Physical Sciences at the Microscale, Hefei 230026, China;1. Center for Composite Materials and Structures, No. 2 YiKuang Street, Science Park of Harbin Institute of Technology (HIT), Harbin, 150080, PR China;2. Department of Aerospace Science and Mechanics, No. 92 West DaZhi Street, Harbin Institute of Technology (HIT), Harbin, 150001, PR China;1. Mechanical and Electrical College, Beijing Institute of Technology, Beijing, 100081, China;2. School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, China
Abstract:Hierarchical SnO2@ZnO nanostructures are successfully synthesized in a large scale by using a simple hydrothermal method. The SnO2 nanowires epitaxially grow on the non-polarized plane of ZnO nanorods with a six-fold symmetry. The radar wave absorbing and infrared emissivity properties of hierarchical SnO2@ZnO nanostructures are studied. Such hybrid hierarchical SnO2@ZnO nanostructures show enhanced radar and infrared compatible stealth properties than ZnO or SnO2. The minimum reflection loss (RL) is ?23.51 dB at 9.2 GHz with a bandwidth (RL<?10 dB) of 3.5 GHz and the average infrared emissivity in middle-infrared band and far-infrared band are around 0.65 and 0.89, respectively.
Keywords:Powders: chemical preparation  Nanocomposites  Microwave absorption  Infrared emissivity
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