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The BOSCO cell concept: Bifacial operation with double-sided collection

: Fertig, F.; Krauß, K.; Greulich, J.; Clement, F.; Biro, D.; Preu, R.; Rein, S.


Institute of Electrical and Electronics Engineers -IEEE-:
40th IEEE Photovoltaic Specialist Conference, PVSC 2014 : Denver, Colorado, 08.06.2014-13.06.2014
Piscataway, NJ: IEEE, 2014
ISBN: 978-1-4799-4398-2
ISBN: 978-1-4799-4397-5
Photovoltaic Specialists Conference (PVSC) <40, 2014, Denver/Colo.>
Conference Paper
Fraunhofer ISE ()

The recently introduced BOSCO ('Both Sides Collecting and Contacted') solar cell exhibits emitter regions on front and rear side, which are interconnected by diffused vias. This allows double-sided collection of carriers in the base and bifacial operation while supporting standard module interconnection technology. This work gives a simplified loss analysis of the first batch of large-area multi-crystalline silicon cells. A potential efficiency improvement of 0.9 %abs in front-side efficiency and 25 %rel in rear-side efficiency is expected when implementing imminent technological measures.