A MoS2-based broadband and multiband metamaterial absorber in the visible band

被引：7
|
作者：
Song, Shitong [1 ]
Liu, Fanyi [2 ]
Qi, Limei [1 ]
Zhang, Zhao [1 ]
Wang, Haodong [1 ]
Zhou, Yuting [3 ]
机构：
[1] Beijing Univ Posts & Telecommun, Sch Elect Engn, Beijing 100876, Peoples R China
[2] Beijing Univ Posts & Telecommun, Sch Informat & Commun Engn, Beijing 100876, Peoples R China
[3] Beijing Univ Posts & Telecommun, Sch Cyberspace Secur, Beijing 100876, Peoples R China
来源：
MODERN PHYSICS LETTERS B | 2020年 / 34卷 / 34期
基金：
中国国家自然科学基金;
关键词：
Broadband; multiband; MoS2; metamaterial absorber; solar cell; ENHANCED ABSORPTION; GRAPHENE MONOLAYER; MOS2; LIGHT; REFLECTION; RESONANCE; ANGLE;
D O I：
10.1142/S0217984920503972
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A broadband MoS2-based absorber composed of Ag rod/MoS2/dielectric/Ag is proposed in the visible band. The relative bandwidth is 65% for the absorption above 80%. The absorber also has the properties of polarization-independence and wide-angle absorption. Impedance matching theory is used to analyze the physical mechanism of the broadband absorption. By investigating the absorption property of each part of the absorber, it is found that the absorption is enhanced by introducing the two-dimensional material MoS2. The broadband absorber can be changed to be multiband absorber by changing the thickness of dielectric substrate. This structure provides a new perspective to enhance absorption in the visible band and has promising applications in solar cells.
引用
收藏
页数：8
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