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Memorias de investigación
Ponencias en congresos:
Raising the efficiency limit of the GaAs-based intermediate band solar cell through the implementation of a mololithic tandem with an AlGaAs top cell
Año:2010
Áreas de investigación
  • Fisica sb -- semiconductores y estructura de bandas
Datos
Descripción
The high efficiency limit of the intermediate band solar cell (IBSC) corresponds to the case of using as intermediate band (IB) host material a semiconductor with gap in the range of 2 eV. Traditional photovoltaic materials, such as Si and GaAs, are not appropriate to produce IB devices because their gaps are too narrow. To overcome this problem, we propose the implementation of a multi-junction device consisting of an IBSC combined with a single gap cell. We calculate the efficiency limits using the detailed balance model and conclude that they are very high (> 60% under maximum concentration) for any fundamental bandgap from 0.7 to 3.6 eV in the IBSC inserted in the tandem. In particular, the two-terminal tandem of a GaAs-based IBSC current matched to an optimized AlGaAs top cell has an efficiency limit as high as 64%.
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
06/10/2010
Fecha fin congreso
10/09/2010
Desde la página
65
Hasta la página
68
Título de las actas
Proc. 25th EU PVSEC/5th WCPEC
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Elisa Antolin Fernandez (UPM)
  • Autor: Antonio Marti Vega (UPM)
  • Autor: Pablo Garcia-Linares Fontes (UPM)
  • Autor: Iñigo Ramiro Gonzalez (UPM)
  • Autor: Estela Hernandez Martin (UPM)
  • Autor: Antonio Luque Lopez (UPM)
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
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