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ECN publicatie:
Titel:
The importance of paste rheology in improving fine line, thick film screen printing of front side metallization
 
Auteur(s):
 
Gepubliceerd door: Publicatie datum:
ECN Zonne-energie 1997
 
ECN publicatienummer: Publicatie type:
ECN-RX--97-026 Conferentiebijdrage
 
Aantal pagina's: Volledige tekst:
6 Download PDF  (111kB)

Gepubliceerd in: Paper, presented at the 14th European photovoltaic solar energy conference and exhibition, 30 June - 4 July, 1997, Barcelona, Sp (), , , Vol., p.-.

Samenvatting:
An important requirement in the processing of front side metallizationfor solar cells is to print fine lines with a high aspect ratio in mass production. Rheology is a key feature to describe the paste printing behaviour, but it is difficult to both characterize the aspects of easy printing and non-slumping using basic rotation viscometry. In this work a new approach is applied, using oscillation rheometry, to simulate the paste behaviour during printing in a single experiment. Time tests are performed on seven commercially available silver pastes, and are interpreted in terms of easy printing, slumping, etc. The results of screen printing tests on the seven pastes confirm the interpretation of the measured complex shear modulus and loss angle. 4 figs., 1 tab., 6 refs.


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