Memorias de investigación
Artículos en revistas:
Electron-phonon energy transfer in hot-carrier solar cells
Año:2010
Áreas de investigación
  • Física
Datos
Descripción
Hot-carrier solar cells may yield very high efficiency if the heat transfer from electrons to phonons is low enough. In this paper we calculate this heat transfer for the two inelastic mechanisms known to limit the electric conductivity: the multi-valley scattering in non-polar semiconductors and the coupling of electrons to longitudinal optical phonons in polar semiconductors. Heat transfer is ruled by matrix elements deduced from electric conductivity measurements. The cell power extracted from hot-carrier solar cells affected by this mechanism, but otherwise ideal, is deduced. It is found that Si and Ge solar cells, mainly under concentrated Sun light, might lead to better efficiencies than conventional cells. (C) 2009 Elsevier B.V. All rights reserved.
Internacional
Si
JCR del ISI
Si
Título de la revista
SOLAR ENERGY MATERIALS AND SOLAR CELLS
ISSN
0927-0248
Factor de impacto JCR
3,858
Información de impacto
Volumen
94
DOI
Número de revista
Desde la página
287
Hasta la página
296
Mes
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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