Modeling of Moth Eye Structures for Silicon Solar Cells Efficiency Enhancement

Ethar  Jasim; Imad hadi Khaleel; Ali F. Al-Shawabkeh Al-Shawabkeh

doi:10.30526/38.3.4028

Authors

Ethar S. Jasim Ministry of Education, Rusafa-1, Baghdad, Iraq https://orcid.org/0009-0005-6672-548X
Imad H. Khaleel Department of Physics, College of Education for Pure Science (Ibn Al-Haitham), University of Baghdad, Baghdad, Iraq. https://orcid.org/0000-0003-4498-0752
Ali F. Al-Shawabkeh Department of Scientific Basic Sciences, Faculty of Engineering Technology, Al-Balqa Applied University, Amman, Jordan. https://orcid.org/0000-0001-7350-6000

DOI:

https://doi.org/10.30526/38.3.4028

Keywords:

Moth-Eye, Nano structures, Solar cells, Finite difference time domain, Efficiency enhancement

Abstract

Moth-eye nano-structure is essentially used as a light-trapping technique for more efficient and cost-effective solar cells. This computational study investigated two dimensions of rectangular silicon base anti-reflected nanostructure for ultra-thin film solar silicon cell efficiency enhancement. The introduced simulation procedure depends on numerical methods and Lumerical software. Impacts of the structure geometry, which was the width and height, on optical and electrical properties were investigated. It found that the geometry of the structure has a significant effect on the absorption and reflection spectrum, due to structure light-trapping effects, and the maximum absorption increases in visible regain reported at a width of 300 nm and height of 100 nm. We also determined the fill factor, short circuit current, and open circuit voltage. It is found that the short circuit current density is significantly influenced by the structure geometry due to a change in absorption, which influences electron-hole generation. It’s also found that the performance can be enhanced by choosing a suitable dimension for the suggested structure. The optimum efficiency enhancement achieved was from 8.71% to 11.89%, and the obtained results are encouraging for using the presented procedure to design more complex structures.

Author Biographies

Ethar S. Jasim , Ministry of Education, Rusafa-1, Baghdad, Iraq

Department of Physics, College of Education for Pure Science (Ibn Al-Haitham), University of Baghdad, Baghdad, Iraq.
Imad H. Khaleel, Department of Physics, College of Education for Pure Science (Ibn Al-Haitham), University of Baghdad, Baghdad, Iraq.

Department of Physics, College of Education for Pure Science (Ibn Al-Haitham), University of Baghdad, Baghdad, Iraq.
Ali F. Al-Shawabkeh, Department of Scientific Basic Sciences, Faculty of Engineering Technology, Al-Balqa Applied University, Amman, Jordan.

Department of Scientific Basic Sciences, Faculty of Engineering Technology, Al-Balqa Applied University, Amman, Jordan.

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