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Memorias de investigación
Ponencias en congresos:
III-V multijunction solar cells for ultra-high concentration photovoltaics
Año:2009
Áreas de investigación
  • Industria electrónica
Datos
Descripción
In this paper, the benefits of the ultra high concentration (> 1000 suns) are shown in terms of cost reduction and efficiency increase. Accordingly, the strategy followed at IES-UPM for more than 15 years is the development of III-V solar cells suitable for operation at 1000 suns or more. Recently, we have developed and manufactured a GaInP/GaAs dual-junction cell which results in an efficiency (measured at the Calibration Laboratory, CalLab, of Fraunhofer Institute in Freiburg) of 32.6% for a concentration range going from 499 to 1026 suns. This efficiency is the world record efficiency for a dual-junction solar cell. Besides, the efficiency is still as high as 31% at 3000 suns. The theoretical optimization of this solar cell (based on an accurate modelling) shows a potential efficiency over 36% at 1000 suns. We have extended this strategy to lattice-matched GaInP/Ga(In)As/Ge triple junction solar cells. First manufactured cells exhibit an efficiency of 31.5% at 1000 suns. The theoretical optimization of this cells show that an efficiency over 43% at 1000 suns is achievable. A roadmap has been established in order to reach this value.
Internacional
Si
Nombre congreso
34th IEEE Photovoltaic Specialists Conference
Tipo de participación
960
Lugar del congreso
Philadelphia, USA
Revisores
Si
ISBN o ISSN
978-1-4244-2950-9
DOI
Fecha inicio congreso
07/06/2009
Fecha fin congreso
12/06/2009
Desde la página
1571
Hasta la página
1575
Título de las actas
Proceedings of the Congress
Esta actividad pertenece a memorias de investigación
Participantes
  • Participante: B. Galiana (Instituto de Energía Solar)
  • Participante: J. R. González (Instituto de Energía Solar)
  • Autor: Carlos Algora Del Valle (UPM)
  • Participante: M. Baudrit (Instituto de Energía Solar)
  • Autor: Ignacio Rey-Stolle Prado (UPM)
  • Autor: Ivan Garcia Vara (UPM)
  • Autor: Pilar Espinet González (UPM)
  • Autor: Enrique Barrigon Montañes (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Semiconductores III-V
  • Centro o Instituto I+D+i: Instituto de Energía Solar
  • Departamento: Electrónica Física
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