Memorias de investigación
Ponencias en congresos:
Light trapping properties of cylindrical well diffraction gratings in solar cells: Computational calculations
Año:2010
Áreas de investigación
  • Fisica sb -- semiconductores y estructura de bandas
Datos
Descripción
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.
Internacional
Si
Nombre congreso
25th European Photovoltaic Solar Energy Conference and Exhibition - 5th World Conference on Photovoltaic Energy Conversion
Tipo de participación
960
Lugar del congreso
Valencia (España)
Revisores
Si
ISBN o ISSN
3-936338-26-4
DOI
Fecha inicio congreso
06/09/2010
Fecha fin congreso
10/09/2010
Desde la página
647
Hasta la página
649
Título de las actas
Proc. 25th EU PVSEC/5th WCPEC
Esta actividad pertenece a memorias de investigación
Participantes
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Silicio y Nuevos Conceptos para Células Solares
  • Centro o Instituto I+D+i: Instituto de Energía Solar