Light absorption enhancement in tri-layered composite metasurface absorber for solar cell applications

AD Khan, AD Khan, SD Khan, M Noman - Optical Materials, 2018 - Elsevier
Optical Materials, 2018Elsevier
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 …
Abstract
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 (AAM1.5) of the solar cell is also evaluated by varying the structural parameters, which reaches to ∼ 86.35%. Such high value of AAM1.5 indicates that the proposed design is highly suitable for solar cell application because it greatly enhance the conversion efficiency.
Elsevier
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