Featured in Connected to quality – 04-2020

Carriers key for quality cell surfaces

The path to lower solar LCOE can be painful; just ask a PV manufacturer. However, ever-larger crystalline wafers may cause more pain than they are worth, argues Gerry Knoch, the managing director of wet bench provider exateq. For high efficiency, eliminating cross contamination in wet processes is vital and can be achieved – with carriers playing an important role.
Image: exateq

Whether ongoing progress with p-type PERC, a shift to n-type TOPCon, or a switch to heterojunction (HJT), high-efficiency PV cell production requires one thing: clean wafer surfaces and the minimizing of cross contamination in wet chemistry processes. This, at least, is the experience of Gerry Knoch, the PV industry veteran leading Germany-based exateq GmbH. And …

pv magazine
This article is part of pv+
Subscribe digitally to unlock exclusive investigative reporting, expert insights, in-depth analysis, and premium background coverage. Your subscription also includes full access to the digital edition of our magazine.