Ultrathin and Optically Transparent Microwave Absorber Based on Flexible Silver Nanowire Film

Crystals

Mingtuan Lin¹  Dingwang Yu²  Yanfei Dong²  Guochao Li²  Yulin Cao²  Youde Ruan² 

[1] College of Electronic Science, National University of Defense Technology, Changsha 410073, China;Industries Training Centre, Shenzhen Polytechnic (SZPT), Shenzhen 518055, China;

关键词: metamaterial absorber;    optically transparent;    flexible;    silver nanowire;    ultrathin;   

DOI  :  10.3390/cryst11121583

来源: DOAJ

【 摘 要 】

The design of an optically transparent and flexible metamaterial absorber was presented and fabricated. For this purpose, we use two different patterned silver nanowire films separated by the space layer, forming a transparent sandwiched structure with an ultrathin thickness. By analyzing the equivalent circuit model and distribution of electric field and current, the absorption physical mechanism has been theoretically investigated. The results show that the structure can achieve above 0.8 absorptions from 6 GHz to 18 GHz, and at the same time, this absorber also can obtain wide-angle property. The optical transmittance of the fabricated absorber exceeds 82% in the visible band. The results demonstrate that transparency and flexibility are the additional benefits that make the proposed absorber suitable for various potential applications.

【 授权许可】

Unknown