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A novel approach to high performance and cost effective surface cleaning for high efficiency solar cells

: Moldovan, A.; Zimmer, M.; Rentsch, J.; Ferstl, B.; Rajagopalan, B.; Thate, S.; Hoogboom, J.; Ross, M.

Volltext urn:nbn:de:0011-n-2669405 (509 KByte PDF)
MD5 Fingerprint: d19a8429aae9348495614ac2a21f927a
Erstellt am: 6.12.2013

Mine, A. ; European Commission:
28th European Photovoltaic Solar Energy Conference and Exhibition, EU PVSEC 2013. Proceedings. DVD-ROM : 30 September to 04 October 2013, Paris, France
München: WIP-Renewable Energies, 2013
ISBN: 3-936338-33-7
European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC) <28, 2013, Paris>
Konferenzbeitrag, Elektronische Publikation
Fraunhofer ISE ()
PV Produktionstechnologie und Qualitätssicherung; Silicium-Photovoltaik; Oberflächen: Konditionierung; Passivierung; Lichteinfang; Messtechnik und Produktionskontrolle; Chemical Surface Cleaning; Solar Cells; Emitter

In this work a novel one-step wet chemical surface cleaning approach with reduced cost of ownership for the industrial realization of high efficiency silicon solar cells is evaluated in a comparative study. For this purpose investigations concerning metal removal efficiency, impact on emitter sheet resistance change, carrier lifetime and on electrical cell data are performed. In all tests a comparable performance of SELURIS® to RCA [1] cleaning can be attained by an optimization of the SELURIS® formulation. On conventional Cz wafers of 156 mm size, peak efficiencies of 19.4 % for PERC devices with SELURIS® C-2000 series cleaning are achieved.