Solar broadband metamaterial perfect absorber based on dielectric resonant structure of Ge cone array and InAs film

作     者：Kuang-Ling Guo Hou-Hong Chen Xiao-Ming Huang Tian-Hui Hu Hai-Ying Liu 郭匡灵;陈厚宏;黄晓明;胡天惠;刘海英

作者机构：Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and DevicesSchool for Information and Optoelectronic Science and EngineeringSouth China Normal UniversityGuangzhou 510006China 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2021年第30卷第11期

页      面：325-330页

核心收录：

学科分类：08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：Project supported by the Natural Science Foundation of Guangdong Province,China(Grant No.2018A030313854) the Science and Technology Program of Guangzhou City,China(Grant No.2019050001) 

主　　题：metamaterial electromagnetic resonance perfect absorber solar broadband absorption` 

摘      要：The broadband metamaterial perfect absorber has been extensively studied due to its excellent characteristics and promising application *** this work a solar broadband metamaterial perfect absorber is proposed based on the structure of the germanium(Ge)cone array and the indium arsenide(InAs)dielectric film on the gold(Au)*** results show that the absorption covers the whole ultraviolet-visible and near-infrared *** the case of A99%,the absorption bandwidth reaches up to 1230 nm with a wavelength range varied from 200 nm to 1430 *** proposed absorber is able to absorb more than 98.7%of the solar energy in a solar spectrum from 200 nm to 3000 *** electromagnetic dipole resonance and the high-order modes of the Ge cone couple strongly to the incident optical field,which introduces a strong coupling with the solar radiation and produces an ultra-broadband *** absorption spectrum can be feasibly manipulated via tuning the structural parameters,and the polarization insensitivity performance is particularly *** proposed absorber can possess wide applications in active photoelectric effects,thermion modulators,and photoelectric detectors.