UK scientists observe LID in action

A team of researchers from Manchester University claims to have identified the dominant process causing light-induced degradation in silicon solar cells. The process, termed "trap-assisted auger recombination", arises from a defect in the bulk of the silicon material which lies dormant until exposed to sunlight.Light-induced degradation (LID) has been a thorn in the side of solar manufacturers for decades, preventing full utilization of the impressive efficiency gains solar technology has achieved in recent years. And since the passivated emitter rear cell (PERC) concepts that now represent the ...

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