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

Author

Fertig, Fabian ; Krauss, Karin ; Greulich, Johannes ; Clement, Florian ; Biro, Daniel ; Preu, Ralf ; Rein, Stefan

Author_Institution

Fraunhofer Inst. for Solar Energy Syst., Freiburg, Germany

fYear

2014

fDate

8-13 June 2014

Firstpage

2138

Lastpage

2143

Abstract

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.

Keywords

elemental semiconductors; silicon; solar cells; BOSCO solar cell concept; Si; bifacial operation; both side collecting and contacted solar cell concept; double-sided carrier collection; double-sided collection; efficiency 0.9 percent; efficiency 25 percent; large-area multicrystalline silicon cell; standard module interconnection technology; Current measurement; Photovoltaic cells; Photovoltaic systems; Reflectivity; Silicon; bifacial; double-sided collection; multi-crystalline silicon; photovoltaic cells;

fLanguage

English

Publisher

ieee

Conference_Titel

Photovoltaic Specialist Conference (PVSC), 2014 IEEE 40th

Conference_Location

Denver, CO

Type

conf

DOI

10.1109/PVSC.2014.6925348

Filename

6925348