Solar cell scribing working principle

Can laser scribing be used for solar cells?

In recent years, extensive laser scribing studies have been performed on new generations of solar cells, mainly focusing on perovskite solar cells [8, 16]. In addition, Bonse and Krüger reviewed ultrashort laser structuring, especially for metal, semiconductor, and dielectric thin films, by highlighting and emphasizing ablation mechanisms.

Does laser scribing reduce the efficiency of thin film solar cells?

Using ns lasers may noticeably decrease the efficiency of the solar thin films, and ps and fs lasers have demonstrated much less efficiency drop in thin film solar cells [116, 128]. Furthermore, it must be mentioned that laser-type selection depends on the type of scribing and the film material to be removed.

Can laser scribing and Mechanical cleaving improve solar cell separation efficiency?

One of the methods to separate is by laser scribing and mechanical cleaving (LSMC). It was known that not mechanical cleaving but laser scribing is a major source of losses during the solar cell separation process. Therefore, the SHJ solar cell separation optimization should focus on the laser scribing process to pursue better performance.

Why is laser used in scribing amorphous silicon solar cells?

Afterward, laser rapidly became one of the most efficient tools in thin film modification and scribing due to its remarkable characteristics in patterning materials compared to conventional methods. Nakano et al. used laser for scribing amorphous silicon solar cells for the first time.

Does scribing width affect solar cell performance?

The model results show that the effect of the width on the Eff of solar cells is limited at low scribing depth. However, the scribing width will be a factor that cannot be ignored at a large scribing depth. This understanding is essential for optimizing laser scribing conditions to enhance solar cell performance.

Is thermal stress cleaving a good scribing method for solar cells?

It is proved that combining this new scribing method with the thermal stress cleaving is an economical separation solution with less laser scribing loss and better compatibility for different cells. Our results would shed some light on future separating and module design efforts of solar cells. 1. Introduction