Review of laser material interaction to improve CIGSeS thin film solar cells

Neelkanth G. Dhere; Ashwani Kaul; Juliana Shimada; Aravinda Kar

doi:10.1117/12.940756

12 October 2012 Review of laser material interaction to improve CIGSeS thin film solar cells

Neelkanth G. Dhere, Ashwani Kaul, Juliana Shimada, Aravinda Kar

Proceedings Volume 8473, Laser Material Processing for Solar Energy; 84730G (2012) https://doi.org/10.1117/12.940756
Event: SPIE Solar Energy + Technology, 2012, San Diego, California, United States

Abstract

The best conversion efficiency of champion, small-area CIGSeS cells and mass-produced modules are 20.3% and ~12.0% respectively. Molybdenum back-contact layer is scribed with a laser (P1). Development of laser scribing for P2 and P3 scribes will reduce the dead area and improve the reliability. Development of a laser annealing technique can minimize and passivate micro-non-uniformities and grain boundaries thus reducing carrier recombination. In-situ characterization of the sample through a nonintrusive method such as reflectivity measurement during the laser recrystallization process can enhance insight into laser-material interaction and the effect of material structures on the photoelectric properties of solar cells. The improvement in efficiency achieved with laser processing can help to bring down the cost.

Citation Download Citation

Neelkanth G. Dhere, Ashwani Kaul, Juliana Shimada, and Aravinda Kar "Review of laser material interaction to improve CIGSeS thin film solar cells", Proc. SPIE 8473, Laser Material Processing for Solar Energy, 84730G (12 October 2012); https://doi.org/10.1117/12.940756

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