The influence of holes in the mechanical properties of EWT solar cells

Barredo Egusquiza, Josu and Fraile de Lerma, Alberto and Rey Llorente, Ignacio del and Hermanns, Lutz Karl Heinz (2011). The influence of holes in the mechanical properties of EWT solar cells. In: "11th International Conference on the Mechanical Behavior of Materials (ICM11)", 06/06/2011 - 09/06/2011, Lago Como, Italia. pp. 3244-3249. https://doi.org/10.1016/j.proeng.2011.04.534.

Description

Title: The influence of holes in the mechanical properties of EWT solar cells
Author/s:
  • Barredo Egusquiza, Josu
  • Fraile de Lerma, Alberto
  • Rey Llorente, Ignacio del
  • Hermanns, Lutz Karl Heinz
Item Type: Presentation at Congress or Conference (Article)
Event Title: 11th International Conference on the Mechanical Behavior of Materials (ICM11)
Event Dates: 06/06/2011 - 09/06/2011
Event Location: Lago Como, Italia
Title of Book: Procedia Engineering. 11th International Conference on the Mechanical Behavior of Materials (ICM11)
Date: 2011
Volume: 10
Subjects:
Faculty: E.T.S.I. Industriales (UPM)
Department: Mecánica Estructural y Construcciones Industriales [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

EWT back contact solar cells are manufactured from very thin silicon wafers. These wafers are drilled by means of a laser process creating a matrix of tiny holes with a density of approximately 125 holes per square centimeter. Their influence in the stiffness and mechanical strength has been studied. To this end, both wafers with and without holes have been tested with the ring on ring test. Numerical simulations of the tests have been carried out through the Finite Element Method taking into account the non-linearities present in the tests. It's shown that one may use coarse meshes without holes to simulate the test and after that sub models are used for the estimation of the stress concentration around the holes.

More information

Item ID: 13095
DC Identifier: http://oa.upm.es/13095/
OAI Identifier: oai:oa.upm.es:13095
DOI: 10.1016/j.proeng.2011.04.534
Deposited by: Memoria Investigacion
Deposited on: 04 Dec 2012 08:35
Last Modified: 21 Apr 2016 12:24
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