Extended Data Fig. 1
From: Silicon heterojunction back-contact solar cells by laser patterning

A complete fabrication process flow of the HBC solar cell. The cell fabrication process comprises 12 major steps including 1. N-contact formation, 2. Mask deposition, 3. Laser patterning 1, 4. Wet chemical cleaning 1, 5. P-contact formation, 6. Laser patterning 2, 7. Wet chemical cleaning 2, 8. Front passivation, 9. Wet chemical cleaning 3, 10, TCO deposition, 11, Laser patterning 3, and 12. Metallization.