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Numerical investigation of cross metamaterial shaped ultrawideband solar absorber

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Abstract

We proposed cross-shaped gold metasurface-based ultrawideband solar absorber. The wideband absorber is formed by the three-layer structure of Tungston, MgF2, and gold material. The behaviour of the absorber is investigated numerically for the solar wavelength range of 0.25–3 µm wavelength range. The absorption values of the proposed structure are compared and discussed with the standard solar AM 1.5 absorption spectrum. The proposed absorber is investigated for the different physical parameters condition to identify the optimum results and structure dimensions. This structure shows more than 98% light trapping capacity over the near-infrared and visible light spectrum. This absorber structure also provides a high absorption efficiency for the far-infrared and THz spectrum range. The proposed absorber can apply for the various short band and wideband solar applications. This solar absorber design will help in designing the high-efficiency solar cell. The proposed structure's overall input incident angle stability will assist in operating at an oblique angle of the incident in most daytime duration.

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Correspondence to Shobhit K. Patel.

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Devendran, M., Beno, A., Kannan, K. et al. Numerical investigation of cross metamaterial shaped ultrawideband solar absorber. Opt Quant Electron 54, 323 (2022). https://doi.org/10.1007/s11082-022-03670-3

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  • DOI: https://doi.org/10.1007/s11082-022-03670-3

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