High efficiency requires high quality cutting
There is a sense in the PV cell and module market at the mid stage of 2019 that the push towards high-efficiency cell architectures is accelerating. This makes the case for half-cut cells in a module more compelling, and the quality of the cut edge vital – argue laser process suppliers.
The last four to five years in technology upgrades, both to existing and new lines, among solar cell and module makers has required the implementation of laser processes. The first wave was aluminum oxide rear-surface cell passivation, which required laser ablation. Since then, the ‘back to the future’ implementation of selective emitter processes, enabled by …
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