Featured in Energy Storage Highlights 2018

Why can’t LID be completely removed in PERC cells?

Jay Lin, CEO of PV Guider discusses why the effects of light-induced degradation (LID) in PERC cells cannot be completely eliminated. To explain the difficulty, we first need to understand the LID behavior of the cells, he says.

By

pv magazine

11 Sep 2018

Jay Lin, CEO of PVGuider. | Image: Jay Lin

Passivated emmiter rear contact (PERC) technology is becoming an industry standard for high efficiency cells, but light-induced degradation (LID) is still a major problem. If LID is not treated, degradation can be up to 10% in the first month after instal- lation. To combat this, cell manufacturers add an LID treatment process at the end …

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