Absorption Enhancement of Thin Film Solar Cell Utilizing a Graphene-Based Metasurface

Document Type : Articles

Authors

• Amir Mehrpanah ¹
• Hassan Rasooli Saghai ²
• Babak Sakkaki ³
• Ali Daghigh ¹

¹ Department of Electrical Engineering, Shabestar Branch, Islamic Azad university, Shabestar, Iran

² Department of Electrical Engineering, Tabriz Branch, Islamic Azad University, Tabriz, Iran

³ Department of Electrical Engineering, Miandoab Branch, Islamic Azad University, Miandoab, Iran

10.30495/jopn.2024.33743.1330

Abstract

Thanks to the unique features of graphene, graphene-based metasurfaces have gained great attention in electronic applications. This manuscript introduces a graphene-based metasurface aiming absorption enhancement in thin film solar cells. We manipulate our design to induce the plasmonic effect in our metasurface. We optimize our metasurface with 2D-GNRs on the top of a SiO2 layer with a thickness of 60 nm. A thin film solar cell (TFSC) is designed based on Si utilizing 2D-GNRs/SiO2 nanostructure and its characteristics are compured with and without 2D GNRs utilizing the FDTD method. The optical short circuit current density increases from 10.66 mA/cm2 to 19.07 mA/cm2 and solar generation rate increases from to with 2D GNRs on the top of SiO2.The plasmonic resonance peaks are reported at the wavelength of 567 nm and 680 nm. To minimize the transmission from TFSC and based on the transmission profile and solar generation rate, we propose Al as a reasonable and suitable choice for the bottom electrode.

Keywords

• Graphene nanoribbon
• Plasmonic effect
• Refractory metal

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