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Memorias de investigación
Ponencias en congresos:
Optimizing the Density of Holes of EWT Solar Cells Taking Into Consideration Mechanical Aspects
Año:2011
Áreas de investigación
  • Ingenierías,
  • Tecnología electrónica y de las comunicaciones
Datos
Descripción
EWT solar cells start from drilled wafers with approximately 100 holes/cm2. These holes act as stress concentrators leading to a reduction in the mechanical strength of this type of wafers. The viability of cells with higher density of holes has been studied. To this end, sets of wafers with different density of holes have been characterized. The ring on ring test has been employed and FE models have been developed to simulate the test. The statistical evaluation permits to draw conclusions about the reduction of the strength depending on the density of holes. Moreover, the stress concentration around the holes has been studied by means of the FE method employing the sub-modeling technique. The maximum principal stress of EWT wafers with twice the density of holes of commercial ones is almost the same. However, the mutual interaction between the stress concentration effects around neighboring holes is only observed for wafers with a density of 200 holes/cm2.
Internacional
Si
Nombre congreso
26th European Photovoltaic Solar Energy Conference and Exhibition
Tipo de participación
960
Lugar del congreso
Hamburgo, Alemania
Revisores
Si
ISBN o ISSN
3-936338-27-2
DOI
10.4229/26thEUPVSEC2011-2BV.2.55
Fecha inicio congreso
05/09/2011
Fecha fin congreso
09/09/2011
Desde la página
1585
Hasta la página
1588
Título de las actas
26th European Photovoltaic Solar Energy Conference Proceedings of the International Conference held in Hamburg, Germany 5 - 9 September 2011
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Josu Barredo Egusquiza (UPM)
  • Autor: Lutz Karl Heinz Hermanns (UPM)
  • Autor: Ignacio del Rey Llorente (UPM)
  • Autor: Alberto Fraile de Lerma (UPM)
  • Autor: Enrique Alarcon Alvarez (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Ingeniería Sísmica: Dinámica de Suelos y Estructuras
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