The Chinese module maker is preparing to bring to the market 25.97%-efficient heterojunction solar cells based on copper metallization. The new products are based on ultra-narrow 9-micron busbars ...

An international research group has achieved a 22.1% power conversion efficiency in a bifacial heterojunction crystalline solar cell fabricated through copper (Cu) plating metallization.

The CuBert paste was used on an M10 solar cell with a conversion efficiency of 24%. Image: Bert Thin Films. Kentucky-based Bert Thin Films has used a proprietary copper paste on a tunnel oxide ...