Featured in Track and Yield – 07-2017

Back to the front side

Lasers and selective emitters: It was hyped, then more-or-less disappeared from view. The application of processes within crystalline silicon PV cell production to achieve a selective emitter architecture has seen hype and interest evaporate in the face of an evolving technology and market landscape. But the front side process may come surging back in the very near future, as lasers deliver a solar technology blast from the past.

It’s certainly not the worst time to be a laser supplier to PV manufacturers. Some of the most interesting technology pathways for cell and module producers being taken today involve key laser processes. These include half-cut and shingled modules, and passivated emitter rear contact (PERC) processes on the cell level. Even the build out of …

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