Plated Copper Front Side Metallization on Printed Seed-Layers for Silicon Solar Cells
Solare Energie- und Systemforschung / Solar Energy and Systems Research
Achim Kraft
Hrsg.: Fraunhofer ISE, Freiburg/Brsg.
2015, 290 S., num., mostly col. illus. and tab., Softcover
Sprache: Englisch
Freiburg; Univ, Diss., 2015
Fraunhofer Verlag
ISBN 978-3-8396-0939-2

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Inhalt
A novel copper front side metallization architecture for silicon solar cells based on a fine printed silver seed-layer, plated with nickel, copper and silver, is investigated. The work focuses on the printing of fine seed-layers with low silver consumption, the corrosion of the printed seed-layers by the interaction with electrolyte solutions and the encapsulation material on module level and on the long term stability of the cells due to copper migration. The investigation of the correlation between fine contact finger geometry and rheological parameters of the printing pastes enabled the reduction of the total silver consumption to < 15 mg/cell front side.

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