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Keywords:

  • photovoltaic glass;
  • anti-reflection;
  • graded-refractive index;
  • two step etching;
  • transmittance and reflectance
Thumbnail image of graphical abstract

A novel two-step etching approach is used to modify the surface layer of photovoltaic glasses, leading to a porous surface layer with a graded refractive index, and nearly 100% transmittance over a broad range of wavelengths, from ultraviolet to near infrared.