Memorias de investigación
Ponencias en congresos:
High volume transfer of high viscosity silver pastes using Laser Direct- Write Processing for metallization of c-Si cells
Año:2015
Áreas de investigación
  • Fisica pl -- plasmas and fluidos,
  • Ingenierías,
  • Ingenieria mecanica
Datos
Descripción
The main objective of this work is to adapt Laser Induced Forward Transfer (LIFT), a well-known laser direct writing technique for material transfer, to define metallic contacts (fingers and busbars) onto c-Si cells. A layer of a commercial silver paste (viscosity around 30-50 kcPs), with thickness in the order of tens of microns, is applied over a glass substrate using a coater.. 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 on the glass/silver interface producing a droplet of silver that it is transferred to the acceptor substra.te 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 voxels is studied using confocal microscopy. Long lines are printed with a scanner and their uniformity, width, and height are studied. Examples of metallization of large areas (up to 10 cm x 10 cm) over c-Si cells are presented.
Internacional
Si
Nombre congreso
Photonics West 2015
Tipo de participación
960
Lugar del congreso
San Francisco (EEUU)
Revisores
Si
ISBN o ISSN
0277-786X
DOI
10.1117/12.2080092
Fecha inicio congreso
07/02/2015
Fecha fin congreso
12/02/2015
Desde la página
1
Hasta la página
7
Título de las actas
Proc. of SPIE Vol. 9351
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
  • Departamento: Física Aplicada e Ingeniería de Materiales