By Thorsten Dullweber, Maximilian Stöhr, Christian Kruse, Felix Haase, Birgit Beier, Philip Jäger, Verena Mertens, Robby Peibst &
Rolf Brendel, Institute for Solar Energy Research Hamelin (ISFH), Emmerthal, Germany
This paper reviews the key technology improvements which have enabled a continuous 0.5%abs/year increase in efficiency of industrial PERC and PERC+ cells.
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