Memorias de investigación
Ponencias en congresos:
High-efficiency Köhler photovoltaic concentrators with external light confinement
Año:2011
Áreas de investigación
  • Ingenierías
Datos
Descripción
Metal grid lines are a vital element in multijunction solar cells in order to take out from the cell the generated photocurrent. Nevertheless all this implies certain shadowing factor and thus certain reflectivity on cells surface that lowers its light absorption. This reflectivity produces a loss in electrical efficiency and thus a loss in global energy production for CPV systems. We present here an optical design for recovering this portion of reflected light, and thus leading to a system efficiency increase. This new design is based on an external confinement cavity, an optical element able to redirect the light reflected by the cell towards its surface again. It has been possible thanks to the recent invention of the advanced Köhler concentrators by LPI, likely to integrate one of these cavities easily.
Internacional
Si
Nombre congreso
Nonimaging Optics: Efficient Design for Illumination and Solar Concentration VIII
Tipo de participación
960
Lugar del congreso
San Diego, EEUU
Revisores
Si
ISBN o ISSN
0277-786X
DOI
Fecha inicio congreso
21/08/2011
Fecha fin congreso
22/08/2011
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1
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8
Título de las actas
PROCEEDINGS OF SPIEVolume 8124 Nonimaging Optics: Efficient Design for Illumination and Solar C
Esta actividad pertenece a memorias de investigación
Participantes
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Ingeniería Óptica
  • Centro o Instituto I+D+i: Centro de Domótica Integral, CEDINT
  • Departamento: Electrónica Física