Researchers from Germany's Forschungszentrum Jülich have demonstrated that heterojunction (HJT) solar cells metalized with copper (Cu) paste or copper-silver (AgCu) paste can achieve efficiency levels ...

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 ...

Wang tells PV Tech Premium that copper offers a ‘a compelling combination’ of traits to replace silver. Image: AIKO. This Premium article, which was one of the most read Premium articles in 2025, has ...

Bert Thin Films has developed a copper paste for solar cell manufacturing that keeps the copper from oxidizing during the air-firing process while at the same time avoiding it to make direct contact ...