An ultra-broadband solar absorber based on TiN metamaterial from visible light to mid-infrared

IF 1.8 4区 物理与天体物理 Q3 OPTICS
pan yizhao, Li yuchang, Fang Chen, cheng shubo, Yang wenxing, Wang boyun, Yi zao, Yao duanzheng
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引用次数: 0

Abstract

We study and design an ultra-broadband absorber based on TiN metamaterial. The proposed structure consists of a rectangle pillar, two rectangle rings, an Al 2 O 3 substrate, and a TiN substrate. The average absorption in the range of 300–4962 nm is 97.02%. The physical mechanism is illustrated by electric-field and magnetic-field distributions, including the dielectric lossy property of TiN itself in shorter wavelengths, Fabry–Perot resonance, and local surface plasmon resonance in longer wavelengths. The result indicates that the energy absorption spectrum can be well matched with the standard solar spectrum under AM 1.5 over the full range of 300–5000 nm, and then we compare the solar absorption spectrum of different structures. In the end, the influence of different materials and geometrical parameters on absorption is investigated. The absorber can achieve ultra-broadband perfect absorption, and has a simple structure that is easy to manufacture. The result of this work can be applied in many potential fields, for example, thermal photovoltaic power generation, infrared imaging, solar cells, and other optoelectronic devices.
基于TiN超材料的可见光到中红外超宽带太阳能吸收器
研究并设计了一种基于TiN超材料的超宽带吸波器。所提出的结构包括矩形柱、两个矩形环、al_2o_3衬底和TiN衬底。在300 ~ 4962 nm范围内的平均吸光度为97.02%。通过电场和磁场分布,包括TiN本身在短波长的介电损耗特性、法布里-珀罗共振和长波长的局部表面等离子体共振,说明了其物理机制。结果表明,在300 - 5000nm全范围内,AM 1.5下的能量吸收光谱与标准太阳光谱可以很好地匹配,并对不同结构的太阳吸收光谱进行了比较。最后,研究了不同材料和几何参数对吸光度的影响。该吸波器可以实现超宽带的完美吸收,且结构简单,易于制造。本研究成果可应用于热光伏发电、红外成像、太阳能电池及其他光电器件等多个电位领域。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
4.00
自引率
5.30%
发文量
374
审稿时长
2.1 months
期刊介绍: The Journal of the Optical Society of America B (JOSA B) is a general optics research journal that complements JOSA A. It emphasizes scientific research on the fundamentals of the interaction of light with matter such as quantum optics, nonlinear optics, and laser physics. Topics include: Advanced Instrumentation and Measurements Fiber Optics and Fiber Lasers Lasers and Other Light Sources from THz to XUV Light-Induced Phenomena Nonlinear and High Field Optics Optical Materials Optics Modes and Structured Light Optomechanics Metamaterials Nanomaterials Photonics and Semiconductor Optics Physical Optics Plasmonics Quantum Optics and Entanglement Quantum Key Distribution Spectroscopy and Atomic or Molecular Optics Superresolution and Advanced Imaging Surface Optics Ultrafast Optical Phenomena Wave Guiding and Optical Confinement JOSA B considers original research articles, feature issue contributions, invited reviews and tutorials, and comments on published articles.
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