Fabrication and broadband high absorption features of double-layer hybrid nanoforests
Received:September 18, 2017  Revised:January 16, 2018  download
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Author NameAffiliationE-mail
YANG Yu-Dong National Key Laboratory for Electronic Measurement TechnologyNorth University of China yangyudong_work@163.com 
MAO Hai-Yang Institute of Microelectronics of Chinese Academy of Sciences maohaiyang@ime.ac.cn 
LI Rui-Rui North University of China  
JIA Yun-Cong Institute of Microelectronics of Chinese Academy of Sciences  
XIONG Ji-Jun North University of China xiongjijun@nuc.edu.cn 
WANG Wei-Bing Institute of Microelectronics of Chinese Academy of Sciences  
Abstract:In this work, nanowire-nanocone double-layer nanoforests are prepared based on a plasma repolymerization technique, and then double-layer hybrid nanoforests are realized by introducing noble metal-nanoparticles on surface of the nanoforests using a magnetron sputtering step. The entire process is simple and fully compatible with conventional micro-fabrication, besides, it is a parallel technique, thus large area fabrication of the hybrid nanoforests is easy to achieve. Moreover, such a hybrid nanoforest is able to combine light trapping effect and surface plasmonic effect thus to achieve an average absorption as high as 84.1% in a broad wavelength range of 1.5~25 μm. With such a broadband high absorption property, the double-layer hybrid nanoforests are expected to be widely used to improve performance of infrared devices, and to expand applications of such devices.
keywords:plasma repolymerization, nanoforests, surface plasmon, broadband high absorption
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Copyright:《Journal of Infrared And Millimeter Waves》