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Influence of the metallization process on the strength of silicon solar cells

 
: Kohn, C.; Kübler, R.; Krappitz, M.; Kleer, G.; Reis, I.; Retzlaff, M.; Erath, D.; Biro, D.

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Volltext urn:nbn:de:0011-n-1433222 (254 KByte PDF)
MD5 Fingerprint: e81de484af9d70cf200d3931d92b1919
Erstellt am: 18.8.2012


Sinke, W. ; WIP - Renewable Energies, München; European Commission; UNESCO; World Council for Renewable Energy; International Photovoltaic Equipment Association:
24th European Photovoltaic Solar Energy Conference 2009. CD-ROM : The compiled State-of-the-Art of PV Solar Technology and Deployment. Proceedings of the International Conference held in Hamburg, 21-25 September 2009
München, 2009
ISBN: 3-936338-25-6
S.1419-1423
European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC) <24, 2009, Hamburg>
Englisch
Konferenzbeitrag, Elektronische Publikation
Fraunhofer ISE ()

Abstract
The reduction of costs by decreasing the breakage rate is one major purpose of research in solar cell production technology. In order to achieve this, the level of wafer strength during manufacturing should be as high as possible. Fractures of solar cells were observed along the region where, on the rear side of the cell, the aluminum electrode print overlaps the silver-aluminum. Also, strength investigations gave indications that the strength in this special area is rather low in comparison to the situation at other areas of the solar cell. In the present work specific material and geometry related configurations of the electrodes and particularly their overlap were analyzed relating to the geometrical and material influences to the strength behavior of solar cells. A contribution to the clarification of the mechanisms leading to the observed fracture events was made.

: http://publica.fraunhofer.de/dokumente/N-143322.html