Towards industrial manufacturing of TOPCon

Published: June 1, 2018

By Frank Feldmann; Sebastian Mack; Bernd Steinhauser; Leonard Tutsch; Jana-Isabelle Polzin; Jan Temmler; Anamaria Moldovan; Andreas Wolf; Jochen Rentsch; Martin Hermle; Stefan W. Glunz, Fraunhofer Institute for Solar Energy Systems ISE, Freiburg, Germany

TOPCon is regarded as a possible follow-up technology to the passivated emitter and rear cell (PERC) concept. This paper presents the latest results for high-efficiency solar cells, and the progress made on migrating layer deposition to high-throughput tools, which are already in use in industry. Possible metallization approaches, and three different industrially relevant solar cell structures featuring TOPCon, are also discussed.

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