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Pad printing - a novel thick-film technique of fine-line printing for solar cells

: Hahne, P.; Reis, I.E.; Hirth, E.; Huljic, D.M.; Preu, R.

Fulltext urn:nbn:de:0011-n-198738 (1.4 MByte PDF)
MD5 Fingerprint: 1d9cea506084ab902b421c05bd1333d5
Created on: 9.11.2012

Schmid, J.:
2nd World Conference on Photovoltaic Solar Energy Conversion 1998. Proceedings of the international conference. Vol.2
Luxembourg: Office for Official Publications of the European Communities, 1998 (EUR 18656)
ISBN: 92-828-5419-1
World Conference and Exhibition on Photovoltaic Solar Energy Conversion <2, 1998, Vienna>
Conference Paper, Electronic Publication
Fraunhofer ISE ()
pad printing; solar cell metallisation

The purpose of this work was to study the suitability of pad printing (tampon printing) -an innovative gravure offset (indirect) printing technique. Pad printing offers the possibility of a simple, economic and high through-put manufacture of fine-line metallization below 50 µm on solar cells lowering the optical losses caused by the grid. Only with pad printing is it possible to print fine-line grids on irregular surfaces of ribbon silicon. Pad printing is much more softer to the wafers than screen printing - we never observed solar cell breakage of fragile materials. The printed wafers were fired in a rapid thermal processing furnace. The resistivity and the contact resistivity were measured by a test structure. First not yet optimized solar cells were produced. The results were comparable to those produced by conventional thick-film techniques.