Abstract
Abstract The thin-film Cu-chalcopyrite based solar cell technologies become more attractive due to their lower cost and optimal performance. Efficiency of cells with a large area might be maintained if small segments are interconnected in series in order to reduce photocurrent in thin films and resistance losses, and laser scribing is crucial for performance of the device. We present our results on the material lift-off effect investigations in the CZTS thin-film solar cell structures which can be applied for the damage-free front-side scribing processes. The results of the P2 and P3 type scribe formation with the fundamental harmonics of a picosecond laser are presented.
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