Observatorio de I+D+i UPM

Memorias de investigación
Communications at congresses:
LASER INDUCED FORWARD TRANSFER OF SILVER PASTES FOR PRINTING OF FINGERS IN C-SI CELLS.
Year:2014
Research Areas
  • Engineering,
  • Mechanical aeronautics and naval engineering,
  • Electric engineers, electronic and automatic (eil)
Information
Abstract
The main objective of this work is to adapt the Laser Induced Forward Techniques (LIFT), a well- known laser direct writing technique for material transfer, to define metallic contacts (fingers and busbars) onto c-Si cells. The silver paste (with viscosity around 30-50 kcPs) is applied over a glass substrate using a coater. The thickness of the paste can be control changing the deposit parameters. The glass with the silver paste is set at a controlled gap over the c-Si cell. A solid state pulsed laser (532 nm) is focused at the glass/silver interface producing a droplet of silver that it is transferred to the c-Si cell. A scanner is used to print lines. The process parameters (silver paste thickness, gap and laser parameters -spot size, pulse energy and overlapping of pulses) are modified and the morphology of the lines is studied using confocal microscopy. Long lines are printed and the uniformity (in thickness and height) is studied. Some examples of metallization of larger areas (up to 10 cm x 10 cm) are presented.
International
Si
Congress
29th European Photovoltaic Solar Energy Conference and Exhibition
960
Place
Amsterdam (Holanda)
Reviewers
Si
ISBN/ISSN
3-936338-34-5
Start Date
22/09/2014
End Date
26/09/2014
From page
1406
To page
1409
EU PVSEC Proceedings 2014
Participants
  • Autor: Yu Chen (UPM)
  • Autor: María Isabel Sánchez-Aniorte (UPM)
  • Autor: Miguel Morales Furio (UPM)
  • Autor: Sara Lauzurica Santiago (UPM)
  • 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
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