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Journal Papers

Numerical investigation of gold metasurface based broadband near-infrared and near-visible solar absorber

Author

Parmar, Juveriya H.

Co-Author

Patel, Shobhit K.

Co-Author

Katrodiya, Devang V.

Co-Author

Co-Author

Department

Electronics and Communication Engineering,Physics

Type

Journal

Nationality

International

Journal Name

Physica B: Condensed Matter

Keyword

Metasurface, Infrared, Solar, Absorber, MgF2 substrate

Abstract

We present broadband solar absorber using gold metasurface resonators. The gold metasurface resonators are placed above MgF2 substrate and tungsten ground plane. MgF2 substrate is widely used substrate in solar absorber for achieving higher absorption. The ground plane made of tungsten material reduces the overall cost of the structure. The results are presented in the form of reflectance, transmittance, absorptance, electrical field energy, and magnetic current density. The results are presented in the frequency range of 300 THz to 500 THz. The absorber is given higher absorption in the whole frequency range. Gold resonators play a vital role in trapping light into the substrate layer. The design results are optimized by observing the response for different physical parameters like length of gold resonators, height of gold resonators, height of MgF2 substrate, and height of tungsten layer. The results clearly show the shift in the spectrum by varying the different physical parameters of the design. The proposed solar absorber can become a building block of several photovoltaic devices applicable to energy harvesting.

Volume

591

Issue

Month

August

Year

2020

Pages

Publisher

Elsevier

Place

New York

P-ISSN

E-ISSN

DOI

https://doi.org/10.1016/j.physb.2020.412248

Link

https://www.sciencedirect.com/science/article/abs/pii/S0921452620302660


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