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The commercial application of light induced electroplating for improving the efficiency of crystalline silicon solar cells

: Allardyce, G.; Cahalen, J.; Rasch, J.; Ridler, T.; Weigel, O.; Fröhlich, H.; Kappler, H.; Oberholtzer, F.; Rattey, C.; Mette, A.; Schetter, C.; Glunz, S.

Fulltext urn:nbn:de:0011-n-2094572 (375 KByte PDF)
MD5 Fingerprint: 7a75bfb5352c42f97c6da2ec7cca4bce
Created on: 21.9.2012

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 describes the development of an industrial process for increasing the efficiency of crystalline silicon solar cells by improving the front grid line conductivity without a concurrent increase in shading loss. The methodology to achieve this was to deposit silver (Ag) metal using light induced plating (LIP) onto a seed layer grid of conventional thick film screen printed Ag paste and apply this on an industrial scale. The feasibility of this technique had been previously reported on a laboratory scale with a cyanide based Ag electrolyte [1]. This paper details how this methodology was implemented in an industrial setting but using a non-cyanide Ag plating electrolyte and purpose built in line horizontal equipment. The capability of achieving efficiency gains typically between 0.2 - 0.4% absolute is shown.