Customer Cases

Buffer layer for CIGS solar panel

Man with mask

The challenge

Conventional CIGS solar cells utilize a hazardous CdS buffer, and panel manufacturers are looking for ways towards cadmium-free buffer processing.

The customer

Leading manufacturer of CIGS solar panels.

Beneq solution

A thin Zn(O,S) buffer by ALD provided > 1 % higher efficiency than CdS reference thanks to wider bandgap.

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