Broadband plus-shaped metasurface absorber based on graphene for visible and ultraviolet regions

Solar energy absorption for the whole spectral irradiance is important which includes UV, visible and infrared regions. We have proposed a new metasurface solar absorber design by optimizing the different metasurface designs to absorb most of the solar radiation. The design results are obtained for...

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Bibliographic Details
Published in:Optical and quantum electronics 2022-12, Vol.54 (12), Article 774
Main Authors: Lakshmiprabha, K. E., Govindaraju, C., Mahendran, G.
Format: Article
Language:English
Subjects:
Broadband
Characterization and Evaluation of Materials
Computer Communication Networks
Design optimization
Design parameters
Electrical Engineering
Energy absorption
Energy conversion
Graphene
Incidence angle
Irradiance
Lasers
Metamaterials
Metasurfaces
Optical Devices
Optics
Photonics
Photovoltaic cells
Physics
Physics and Astronomy
Solar energy absorbers
Solar heating
Solar radiation
Thermal energy
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Summary:Solar energy absorption for the whole spectral irradiance is important which includes UV, visible and infrared regions. We have proposed a new metasurface solar absorber design by optimizing the different metasurface designs to absorb most of the solar radiation. The design results are obtained for two metasurface designs namely plus-shape metamaterial design and I-shape metamaterial design. The absorption result comparison of these two designs clearly shows that the plus-shape metamaterial design is having more absorption for all three regions. The highest average absorption of 95% is observed for the visible region for plus-shape metamaterial design. The design results for different parameter variations such as thickness, width, length, etc. are observed and an optimized design is obtained. The design results for the angle of incidence are also observed which clearly shows that the design is having a wide angle of incidence. The graphene potential variation is not affecting the overall absorption of the design. The proposed solar absorber with its wide angle of incidence and high absorption in the solar spectrum can be used for solar thermal energy conversion applications.
ISSN:0306-8919
1572-817X
DOI:10.1007/s11082-022-04165-x