Short Drying Processes for Silicon Solar Cells. Issue 8 (6th July 2022)

• Record Type: Journal Article
• Authors: Ourinson, Daniel; Linse, Michael; Klawitter, Markus; Lorenz, Andreas
• Is Part Of: Physica status solidi. Volume 16:Issue 8(2022)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2022-07-06
• Subjects: drying -- passivated emitter and rear solar cells (PERC) -- process time -- throughput -- vertical-cavity surface-emitting lasers (VCSEL); Solid state physics -- Periodicals; 530.4105
• DOI: 10.1002/pssr.202200149
• Languages: English
• ISSNs: 1862-6254

Abstract

Abstract : Herein, very short drying processes for the screen‐printed electrodes of passivated emitter and rear solar cells (PERC) are successfully demonstrated. The short drying processes are conducted in an in‐line heating system with vertical‐cavity surface‐emitting lasers (VCSEL) as its heat source, being a compact alternative to the conventional heating chamber. While the heating time of the conventional industrial drying process is believed to be about 20 s (to the best of the authors' knowledge), the VCSEL system allows a significant reduction down to 0.15 s while maintaining a similar power conversion efficiency and contact adhesion quality. Abstract : Herein, very short drying processes for solar cells are successfully demonstrated. The drying is conducted in an in‐line heating system with area‐emitting lasers as its heat source, being a compact alternative to the conventional heating chamber. The laser system allows a significant reduction of the drying heating time while maintaining a similar power conversion efficiency and contact adhesion quality.