Characteristics of modified nanopyramid silicon solar cell

Amr Hisham K. Mahmoud; Mohamed Hussein; Mohamed Farhat O. Hameed; S. S. A. Obayya

doi:10.1117/12.2509625

27 February 2019 Characteristics of modified nanopyramid silicon solar cell

Amr Hisham K. Mahmoud, Mohamed Hussein, Mohamed Farhat O. Hameed, S. S. A. Obayya

Proceedings Volume 10913, Physics, Simulation, and Photonic Engineering of Photovoltaic Devices VIII; 109131G (2019) https://doi.org/10.1117/12.2509625
Event: SPIE OPTO, 2019, San Francisco, California, United States

Abstract

In this paper, a modified nanopyramid solar cell (SC) is introduced and numerically analyzed. The finite difference time domain (FDTD) method is used for computing the optical efficiency of the suggested design. The modified nanopyramid SC consists of an upper tapered nanopyramid part and lower nano-rectangular unit. The geometrical parameters of the proposed design are studied to maximize the optical absorption and hence the ultimate efficiency of the reported SC. The modified structure provides an optical ultimate efficiency and short circuit current density (J_sc) of 39.6 % and 32.4 mA/cm² with improvement of 24.1% and 22.2 %, respectively over the conventional thin film (TF) nanopyramid SC. Further, the p-i-n axial junctions of the suggested SC exhibits open circuit voltage (V_oc) of 0.57 volt, J_SC of 28.42 mA/cm² and power conversion efficiency (PCE) of 13.3% which are better than 0.559 volt, 19.6 mA/cm² and 8.95%, respectively of the conventional nanopyramid TF-SC. This enhancement is mainly attributed to the combination between higher order modes generated by lower rectangle unit with lower order modes supported by the upper tapered nanopyramid.

Citation Download Citation

Amr Hisham K. Mahmoud, Mohamed Hussein, Mohamed Farhat O. Hameed, and S. S. A. Obayya "Characteristics of modified nanopyramid silicon solar cell", Proc. SPIE 10913, Physics, Simulation, and Photonic Engineering of Photovoltaic Devices VIII, 109131G (27 February 2019); https://doi.org/10.1117/12.2509625

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