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topic 4278

NaOH free Electroless Cu Solution?


(2000)

We currently use electroless copper plating for the rear contact of solar cells. However recently I have had problems with the NaOH in our plating solution etching a TiO2 film on the front surface.

Does anyone know of any Cu or Ag electroless plating solution that does NOT contain a strong base such as NaOH, or is this a requirement of the whole process to work?

Would switching to electrolytic plating help solve my problem?

Thanks (in advance)

Bryce Richards
Photovoltaics, Univ. of NSW - Sydney, New South Wales, Australia



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