Observatorio de I+D+i UPM

Descripción
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.
Internacional	Si
JCR del ISI	Si
Título de la revista	APPL SURF SCI
ISSN	0169-4332
Factor de impacto JCR	1,406
Información de impacto
Volumen	254
DOI
Número de revista	0
Desde la página	1115
Hasta la página	1120
Mes	DICIEMBRE
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• 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)

• Creador: Grupo de Investigación: Ingeniería y Aplicaciones del Láser
• Departamento: Física Aplicada a la Ingeniería Industrial
• Centro o Instituto I+D+i: Centro Laser