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Keywords:

  • gratings;
  • nanoparticles;
  • photovoltaics;
  • plasmonics;
  • solar cells
Thumbnail image of graphical abstract

Noble metal nanostructures can enhance absorption in thin-film solar cells by simultaneously taking advantage of i) high near-fields surrounding the nanostructures close to their surface plasmon resonance frequency and ii) coupling to waveguide modes. We develop basic design rules for the realization of broadband absorption enhancements for such structures.