Light soaking promises gains for HJT

A number of recent studies have shown the potential of a light soaking stage to improve multiple cell characteristics in heterojunction cells, and provide a significant boost in efficiency and stability. Understanding the longer-term effects on cell structure will be key to developing a cost-effective, industrially applicable process.

Issue 05 – 2022

Research has shown that a light soaking stage, where heterojunction cells like these are briefly exposed to high temperatures and intense illumination, can bring about an efficiency increase. But work on developing an optimized process for HJT production is still at the R&D stage.

Image: Meyer Burger

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