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Low cost using ultra-thin bifacial cells

: Jimeno, J.C.; Bueno, G.; Lago, R.; Freire, I.; Perez, L.; Recart, F.; Hoces, I.; Azkona, N.; Alonso, J.; Sanchez-Friera, P.; Glunz, S.W.; Emanuel, G.; Ruiz, R.; Pohl, A.; Wolke, W.; Schubert, M.; Gavilanes, I.; Ezker, M.; Zugasti, E.; Turumbay, A.; Sato, H.; Bragagnolo, J.; Nasch, P.M.; Ostapenko, S.; Belyaev, A.; Dallas, W.; Polupan, O.; Albertsen, K.; Shaikh, A.; Kerp, H.; Salami, J.

Fulltext urn:nbn:de:0011-n-2096606 (598 KByte PDF)
MD5 Fingerprint: 14e48ca4bc2efec4593ce3c937c3c95a
Created on: 26.9.2012

European Commission, Joint Research Centre -JRC-:
The compiled state-of-the-art of PV solar technology and deployment. 22nd European Photovoltaic Solar Energy Conference, EU PVSEC 2007. Proceedings of the international conference. CD-ROM : Held in Milan, Italy, 3 - 7 September 2007
München: WIP-Renewable Energies, 2007
ISBN: 3-936338-22-1
European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC) <22, 2007, Milano>
Conference Paper, Electronic Publication
Fraunhofer ISE ()

This paper presents the global results of the BiThink project. This is a project financed by DG-TREN. The BiThink objective is to develop and demonstrate an industrial technology able to exert direct influence on the cost of photovoltaic systems. BiThink focuses on three key aspects: the use of bifacial cells and albedo modules as a simple way to increase the amount of energy collected, the increase in the number of wafers obtained from the slicing of silicon ingots and the use of a simple and at last an efficient manufacturing process, able to combine high mechanical yields with reasonable cell efficiency. BiThink shows impressive figures in terms of the consumption of silicon: 5.9 grams per Watt peak using conservative yield values. Another important result is the large amount of new technology developed in the project in the areas of ingot slicing, post-slicing wafer separation, screen printing diffusion, mechanical handling, crack detection, and thin solar cell interconnection.