Memorias de investigación
Research Publications in journals:
New techniques for laser microprocessing of photovoltaic devices based on thin-film a-Si:H
Year:2007

Research Areas
  • Mechanical engineering

Information
Abstract
Laser-controlled ablation of individual layers in glass/TCO/thin-film silicon/metal structures is essential for cell isolation and monolithic interconnection in thin-film silicon photovoltaic technologies. More recently, the potential application of laser scribing techniques for the development of photovoltaic matrix position sensors based on a-Si:H has generated much activity, requiring an excellent control in laser-generated patterns obtained by direct material ablation. This work is aimed to determine process parametric windows for a-Si:H thin-film ablation processes using UV ns laser sources in thin-film a-Si:H-based devices. The study is focussed on direct writing techniques using UV sources. We present ablation threshold measurements and process quality assessment using advanced optical microscopy techniques. Moreover only fully commercial laser sources in the ns regime has been used, bearing in mind that thin film based photovoltaic technologies are still demanding further reduction in production costs and, nowadays, ultrafast sources are beyond their scope both for the investment and running cost of those equipments.
International
Si
JCR
Si
Title
APPL SURF SCI
ISBN
0169-4332
Impact factor JCR
1,406
Impact info
Volume
254
Journal number
0
From page
1115
To page
1120
Month
DICIEMBRE
Ranking
Participants
  • Autor: F. VILLAR CeRMAE Departament Física Aplicada i Òptica, Universitat de Barcelona
  • Autor: J.J. GANDÍA Department de Energías Renovables, Energía Solar Fotovoltaica, CIEMAT
  • Autor: J. ESCARRÉ CeRMAE Departament Física Aplicada i Òptica, Universitat de Barcelona
  • Autor: Carlos Luis Molpeceres Alvarez UPM
  • Autor: Jose Luis Ocaña Moreno UPM
  • Autor: Juan José García-Ballesteros . UPM
  • Autor: J. ANDREU CeRMAE Departament Física Aplicada i Òptica, Universitat de Barcelona
  • Autor: J. BERTOMEU CeRMAE Departament Física Aplicada i Òptica, Universitat de Barcelona
  • Autor: Sara Lauzurica Santiago UPM
  • Autor: Miguel Morales Furio UPM
  • Autor: J. CÁRABE Department de Energías Renovables, Energía Solar Fotovoltaica, CIEMAT
  • Autor: Susana Fernández Robledo UPM

Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Ingeniería y Aplicaciones del Láser
  • Departamento: Física Aplicada a la Ingeniería Industrial
  • Centro o Instituto I+D+i: Centro Laser