Memorias de investigación
Ponencias en congresos:
LASER BASED METALLIZATION USING SILVER PASTES
Año:2019
Áreas de investigación
  • Ingenieria mecanica
Datos
Descripción
In this work we present a laser-based metallization process, using commercial silver pastes, of potential application in photovoltaics (PV) and flexible electronics. The process comprises two steps to achieve the final conductive structures: the first one is intended to transfer the material in the appropriate geometries and the second one produces the curing/sintering of the material avoiding the standard furnace step for firing. For the first step, a particular adaption of the Laser Induced Forward Transfer Technique (LIFT) is used, and in this work we discuss the physical principles of the proposed technique. For the second, depending on the device characteristics, a standard furnace firing process can be used or, as an alternative, we use local irradiation using CW lasers for sintering and electrical functionalization of the predeposited lines. This later approach makes the technique fully compatible with a number of low temperature device concepts of increasing importance in high efficiency PV. Our group has developed this technique as an alternative to standard screen-printing metallization processes as part of FP7 Appolo project activity (www.appolo-fp7.eu). We have shown that it is possible to use this technique to define metallic contacts using commercial silver pastes of high viscosity with improved aspect ratios in the deposited structures and to obtain resistivity values similar to those specified by commercial screen-printed cells and. In addition processing speeds can be very high, what makes this technology to some extent a potential competitor at industrial level of standard screen printing techniques.
Internacional
Si
Nombre congreso
International Congress on Applications of Lasers & Electro?Optics (ICALEO)
Tipo de participación
960
Lugar del congreso
Orlando EE.UU.
Revisores
Si
ISBN o ISSN
978-1-940168-1-42
DOI
Fecha inicio congreso
07/10/2019
Fecha fin congreso
10/10/2019
Desde la página
1
Hasta la página
5
Título de las actas
Proceedings International Congress on Applications of Lasers & Electro? Optics (ICALEO)
Esta actividad pertenece a memorias de investigación
Participantes
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Manufactura Avanzada con Láser
  • Centro o Instituto I+D+i: Centro Laser