Laser and thermal treatments for reclamation of silicon solar cells performance

Ahlam H. J. Al-Musawi

doi:10.1117/12.929917

15 October 2012 Laser and thermal treatments for reclamation of silicon solar cells performance

Ahlam H. J. Al-Musawi

Proceedings Volume 8473, Laser Material Processing for Solar Energy; 847306 (2012) https://doi.org/10.1117/12.929917
Event: SPIE Solar Energy + Technology, 2012, San Diego, California, United States

Abstract

The effects of both low power laser (He - Ne) of 7.5mW, wavelength 632.8 nm, and conventional thermal (50 - 150°C) treatments on reclamation of two types of silicon solar cells samples have been investigated. Dark and under light current - voltage characteristics have been studied before and after laser and thermal processings. The measurements on both types were done for successive times until a steady state has reached. It is found, that the low power laser has no effects on the dark J - V parameters such as saturation current and ideality factor. However, for solar cell parameters under light measurements at 500W/cm2, it has been found that the treatment causes an increase in the short circuit current density, maximum output power, fill factor and hence the solar cell efficiency.

Citation Download Citation

Ahlam H. J. Al-Musawi "Laser and thermal treatments for reclamation of silicon solar cells performance", Proc. SPIE 8473, Laser Material Processing for Solar Energy, 847306 (15 October 2012); https://doi.org/10.1117/12.929917

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