Featured in Racing towards high performance – 06-2019

Atomic layer deposition storms market for PERC

Technology made in China competes with conventional plasma-based equipment to deposit the aluminum oxide layers at the heart of passivated emitter and rear contact (PERC) cells.

By

benedictodonnell

04 Jun 2019

ALD processes for PERC production are a relative newcomer, but advocates say ALD can bring with it a host of advantages. | Image: Leadmicro

A manufacturing technique capable of depositing atomically thin layers of aluminum oxide is reshaping the market for industrial equipment to produce state of the art photovoltaic cells. Manufacturers across China are switching from plasma-enhanced chemical vapor deposition (PECVD) to atomic layer deposition (ALD) as the new method of choice to deposit aluminum oxide passivation layers …

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