Enhanced plasmonic photovoltaic using embedded novel gear-shaped nanoparticles

Author's Department

Physics Department

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https://www.osapublishing.org/ao/abstract.cfm?uri=ao-57-19-5425

All Authors

Marina Medhat; Yasser M. El-Batawy; Alaa K. Abdelmageed; Ezzeldin A. Soliman

Document Type

Research Article

Publication Title

Applied Optics

Publication Date

7-31-2018

doi

10.1364/AO.57.005425

Abstract

In this paper, novel gear-shaped nanoparticles are introduced for the first time to enhance the photovoltaic (PV) efficiency. This has been achieved via increasing the overall power absorption by the PV semiconductor material in both visible and near-infrared ranges. The modes of the new gear-shaped nanoparticles are investigated. A parametric study has been performed which demonstrates how the design parameters of the proposed nanoparticles can be engineered for best overall power absorption within a Si surrounding medium. A figure of merit (FoM) is defined that takes into account all objectives. An optimization technique is applied to obtain the optimum set of the gear’s dimensions, penetration depth, and periodicity for the maximum possible FoM. The optimum gear-shaped nanoparticles design offers 48% enhancement in the FoM if compared with a bare Si block with no nanoparticles and 7% enhancement over the conventional disk-shaped nanoparticles. The enhancement gained by the embedded gear-shaped nanoparticles on the J-V characteristics of the PV is also studied, and the effects of changing the dimensions and the position of nanoparticles on the J-V characteristics enhancement are investigated.

First Page

5425

Last Page

5433

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