Light trapping properties of cylindrical well diffraction gratings in solar cells: Computational calculations

Martí Vega, Antonio; Luque López, Antonio; Tobías Galicia, Ignacio y Mellor Null, Alexander Virgil (2010). Light trapping properties of cylindrical well diffraction gratings in solar cells: Computational calculations. En: "25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion", 06/09/2010 - 10/09/2010, Valencia, España.

Descripción

Título: Light trapping properties of cylindrical well diffraction gratings in solar cells: Computational calculations
Autor/es:
  • Martí Vega, Antonio
  • Luque López, Antonio
  • Tobías Galicia, Ignacio
  • Mellor Null, Alexander Virgil
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion
Fechas del Evento: 06/09/2010 - 10/09/2010
Lugar del Evento: Valencia, España
Título del Libro: Proceedings of the 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion
Fecha: 2010
Materias:
Escuela: E.T.S.I. Telecomunicación (UPM)
Departamento: Electrónica Física
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

Light trapping using diffraction gratings is a promising approach to increasing absorption in solar cells. In this paper, the computationally calculated absorption enhancement expected from a diffraction grating consisting of a triangular array of cylindrical wells is presented. Angle-extended polychromatic illumination is considered, and special attention is paid to absorption of sub-bandgap photons in an intermediate band solar cell. Results are compared to the absorption enhancement expected from an ideal Lambertian (randomizing) scatterer, which is considered as a baseline. It is found that for cells which absorb very weakly, the diffraction grating provides absorption enhancement above that of the ideal Lambertian scatterer over a wide wavelength range. For cells which absorb more strongly, the grating underperforms the ideal Lambertian scatterer over almost all wavelengths. Finally, the grating period, well height and well radius are optimised. Keywords: Light Trapping, Diffraction Grating, Intermediate Band Solar Cell

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Identificador DC: http://oa.upm.es/8896/
Identificador OAI: oai:oa.upm.es:8896
URL Oficial: http://www.photovoltaic-conference.com/
Depositado por: Memoria Investigacion
Depositado el: 22 Sep 2011 10:00
Ultima Modificación: 20 Abr 2016 17:32
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