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ECN publicatie:
Conductive adhesives for interconnection of busbarless emitter wrap-through solar cells on a structured metal foil
Gepubliceerd door: Publicatie datum:
ECN Zonne-energie 1-10-2001
ECN publicatienummer: Publicatie type:
ECN-RX--01-016 Conferentiebijdrage
Aantal pagina's: Volledige tekst:
4 Download PDF  (3029kB)

Gepresenteerd op: 17th European Photovoltaic Solar Energy Conference, Munich, Germany, 22-26 oktober 2001.

The objective of this work was to make a 16% efficient screen-printed emitter wrap-through (EWT)solar module. For this purpose the busbars on the rear of the EWT cell were omitted, which maximises the useful cell area and the efficiency. The busbars? current collecting task is taken over by a special rear side interconnection foil on to which each metal finger is connected by conductive adhesives. This foil also serves as a rear side moisture barrier. In this paper the processing of busbarless EWT cells and the interconnection in a module are described with a special focus on the use of conductive adhesives. Busbarless EWT cells with an efficiency up to 15.6% have been processed and single cell laminates have sucessfully been made. Ongoing extensive climate tests have shown no significant degradation so far.

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