Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Numerical simulation of laser ablation for photovoltaic materials
Year:2012
Research Areas
  • Engineering
Information
Abstract
The objective of this work is to help understanding the impacts of short laser pulses on materials of interest for photovoltaic applications, namely aluminum and silver. One of the traditional advantages of using shorter laser pulses has been the attempt to reduce the characteristic heat affected zone generated in the interaction process, however the complex physical problem involved limitates the integration of simplified physical models in standard tools for numerical simulation. Here the interaction between short laser pulses and matter is modeled in the commercial finite-element software Abaqus. To describe ps and fs laser pulses properly, the two-temperature model (TTM) is applied considering electrons and lattice as different thermal transport subsystems. The Material has been modeled as two equally sized and meshed but geometrically independent parts, representing each the electron and the lattice domain. That means, both domains match in number and position of the respective elements as well as in their shape and their size. The laser pulse only affects the electron domain so that the lattice domain remains at ambient temperature. The thermal connection is only given by the electron-phonon coupling, depending on the temperature difference between both domains. It will be shown, that melting and heat affected zones getting smaller with decreasing pulse durations.
International
Si
JCR
Si
Title
Applied Surface Science
ISBN
0169-4332
Impact factor JCR
2,103
Impact info
Volume
258
http://dx.doi.org/10.1016/j.apsusc.2011.09.014
Journal number
23
From page
9288
To page
9291
Month
SIN MES
Ranking
Participants
  • Autor: Peter Stein
  • Autor: Oscar Garcia Garcia (UPM)
  • Autor: Miguel Morales Furio (UPM)
  • Autor: H.P. Huber
  • Autor: Carlos Luis Molpeceres Alvarez (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Grupo de Investigación en Ingeniería y Aplicaciones del Láser
  • Centro o Instituto I+D+i: Centro Laser
  • Departamento: Física Aplicada a la Ingeniería Industrial
S2i 2019 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)