Journal
OPTICAL MATERIALS
Volume 84, Issue -, Pages 195-198Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.optmat.2018.07.009
Keywords
Metasurface; Broadband; Perfect absorber; Polarization-sensitive; Solar cells
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Novel metasurface absorber based on crossed shaped resonator placed at the top surface is proposed to exhibit enhanced absorption resonances in the entire solar spectrum. Different cases of the absorber are discussed with special emphasis on large spectral width and peak amplitude. It is found that the absorption resonances and their corresponding spectral widths can be significantly modified and widened by adding extra nanorods to the crossed shaped structure at different locations. Furthermore, the weighted absorption under the AM1.5 solar spectrum (A(AM1.5)) of the solar cell is also evaluated by varying the structural parameters, which reaches to - 86.35%. Such high value of A(AM1.5 )indicates that the proposed design is highly suitable for solar cell application because it greatly enhance the conversion efficiency.
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