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Characterization and modeling of back-contact back-junction silicon solar cells

: Kluska, S.; Granek, F.; Rüdiger, M.; Hermle, M.; Glunz, S.W.

Volltext urn:nbn:de:0011-n-1433198 (547 KByte PDF)
MD5 Fingerprint: 232e7e28b45a2ff6ace296a2d0945525
Erstellt am: 11.8.2012

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
European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC) <24, 2009, Hamburg>
Konferenzbeitrag, Elektronische Publikation
Fraunhofer ISE ()

The presented paper develops a model to simulate the J-V characteristic of an industrially structurized back-contact back-junction silicon solar cell to determine the influences of the main loss mechanisms on the cell parameters. In particular, the model contains an analysis to determine the detrimental effect of the electrical shading losses on the short circuit current density. The theoretical calculations show a good agreement with the measurement results of back-contact back-junction solar cells fabricated at Fraunhofer ISE. Furthermore the developed model was used to perform optimizations of the cell geometry. The modeling results show that the optimum base resistivity, base width and pitch is a balance between series resistance losses and electrical shading losses.