International Journal of Engineering and Information Systems (IJEAIS)   Year: 2022 | Volume: 6 | Issue: 10 | Page No.: 1-4 Influence of Pulsed Nitrogen Laser on Silicon Solar Cells Efficiency Download PDF Aldesogi Omer Hamed, Nehad E. Yahiya, NamarigA. EbraheemSohad. Saad. Elwakeel, Omaima. E. Elnaiem and Abdalsakhi.S. M.H Abstract: This study focuses on the effect of pulses Nitrogen laser (N2) on the electrical properties and the efficiency of silicon - solar cells. A nitrogen laser light (? = 337.1nm) wavelength and (400mJ) energy was used to irradiate the solar cells for different periods of time. The current and voltage (I-V) were measured at room temperature. In addition, the short circuit current (Isc), the open circuit voltage (Voc), the fill factor (FF) and the efficiency of the solar cells were studied. The present results show that the solar cells efficiency was increased with time exposure increased. The efficiency of unirradiated solar cell was 13.5% while it increased by 46% after irradiate for 20 minutes. In view of this remarkable intensity increase, it is recommended to use pulse N2 laser to influence the efficiency of Silicon solar cells.