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Memorias de investigación
Artículos en revistas:
Towards the tailoring of P diffusion gettering to as-grown silicon material properties
Año:2011
Áreas de investigación
  • Materiales para ingeniería eléctrica y electrónica,
  • Silicio,
  • Células solares,
  • Tecnología de dispositivos para ingeniería eléctrica y electrónica
Datos
Descripción
The evolution of Fe-related defects is simulated for di erent P di usion gettering (PDG) processes which are applied during silicon solar cell processing. It is shown that the introduction of an extended PDG is bene cial for some as-grown Si materials but not essential for all of them. For mc-Si wafers with an as-grown Fe concentration 14 cm3, a good reduction of the Fei concentration and increase of the electron lifetime is achieved during standard PDG. For mc-Si wafers with a higher as-grown Fe concentration the introduction of defect engineering tools into the solar cell process seems to be advantageous. From comparison of standard PDG with extended PDG it is concluded that the latter leads to a stronger reduction of highly recombination active Fei atoms due to an enhanced segregation gettering e ect. For an as-grown Fe concentration between 1014 cm3 and 1015 cm3, this enhanced Fei reduction results in an appreciable increase in the electron lifetime. However, for an as-grown Fe concentration >1015 cm3, the PDG process needs to be optimized in order to reduce the total Fe concentration within the wafer as the electron lifetime after extended PDG keeps being limited by recombination at precipitated Fe.
Internacional
Si
JCR del ISI
No
Título de la revista
Solid State Phenomena
ISSN
1012-0394
Factor de impacto JCR
0,493
Información de impacto
Volumen
DOI
Número de revista
178-179
Desde la página
158
Hasta la página
165
Mes
SIN MES
Ranking
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: J. Hofstetter
  • Autor: Jean Francoise Lelievre . (UPM)
  • Autor: D. Fenning
  • Autor: T. Buonassisi
  • Autor: Carlos del Cañizo Nadal (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
  • Departamento: Electrónica Física
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