Formation of P3 scribes in CIGS solar cells with nanosecond and picosecond pulses

Edgaras Markauskas; Laimis Zubauskas; Gediminas Račiukaitis; Paulius Gečys

doi:10.1117/12.2574971

5 March 2021 Formation of P3 scribes in CIGS solar cells with nanosecond and picosecond pulses

Edgaras Markauskas, Laimis Zubauskas, Gediminas Račiukaitis, Paulius Gečys

Proceedings Volume 11673, Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XXVI; 1167318 (2021) https://doi.org/10.1117/12.2574971
Event: SPIE LASE, 2021, Online Only

Abstract

In this study, we demonstrate that the P3 scribing of CIGS cells with nanosecond pulses can compete with ultrashort picosecond pulses producing very low conductivity isolation scribes. The investigation covered a wide range of laser wavelengths – from 355 nm to 2.5 µm. Additionally, P3 processing with extremely high speeds (up to 25 m/s) was investigated in CIGS cells. Results showed that heat accumulation effects occurred even in low-pulse-overlap removal of TCO layers (lift-off). Furthermore, processing at highest speeds demonstrated the deteriorated quality of P3 scribes due to ejected TCO flakes partially shielding the laser beam. Nevertheless, scribe conductivity remained low.

Conference Presentation

Citation Download Citation

Edgaras Markauskas, Laimis Zubauskas, Gediminas Račiukaitis, and Paulius Gečys "Formation of P3 scribes in CIGS solar cells with nanosecond and picosecond pulses", Proc. SPIE 11673, Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XXVI, 1167318 (5 March 2021); https://doi.org/10.1117/12.2574971

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