Analysis and fabrication of antireflective coating for photovoltaics based on a photonic-crystal concept and generated by evolutionary optimization - Laboratoire Interdisciplinaire des Sciences du Numérique Access content directly
Journal Articles Physical Review B Year : 2021

Analysis and fabrication of antireflective coating for photovoltaics based on a photonic-crystal concept and generated by evolutionary optimization

Pauline Bennet
  • Function : Author
Sara Ibrahim
  • Function : Author
François Réveret
Olivier Teytaud
Emmanuel Centeno
Antoine Moreau

Abstract

We optimize multilayered anti-reflective coatings for photovoltaic devices, using modern evolutionary algorithms. We apply a rigorous methodology to show that a given structure, which is particularly regular (i.e. essentially periodic), emerges spontaneously and systematically for a very broad range of conditions. The very regularity of the structure allows for a thorough physical analysis of how the design operates. This allows to understand that the central part is a photonic crystal utilized as a buffer for light, and that the external layers have the purpose of reducing the impedance mismatch between the outer media and the Bloch mode supported by the photonic crystal. This shows how optimization can suggest new design rules and be considered as a source of inspiration. Finally, we fabricate these structures with easily deployable techniques.
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hal-03172152 , version 1 (17-03-2021)

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Pauline Bennet, Perrine Juillet, Sara Ibrahim, Vincent Berthier, Mamadou Aliou Barry, et al.. Analysis and fabrication of antireflective coating for photovoltaics based on a photonic-crystal concept and generated by evolutionary optimization. Physical Review B, 2021, 103 (12), ⟨10.1103/PhysRevB.103.125135⟩. ⟨hal-03172152⟩
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