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Enhancing Photovoltaic Performance of Plasmonic Silicon Solar Cells with ITO Nanoparticles Dispersed in SiO2 Anti-Reflective Layer

Department of Electro-Optical Engineering, National Taipei University of Technology, No. 1, Section 3, Zhongxial East Road, Taipei 10608, Taiwan
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Materials 2019, 12(10), 1614; https://doi.org/10.3390/ma12101614
Received: 29 April 2019 / Revised: 15 May 2019 / Accepted: 16 May 2019 / Published: 16 May 2019
(This article belongs to the Special Issue Materials for Photovoltaic Applications)
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Abstract

In this study, we sought to enhance the photovoltaic performance of silicon solar cells by coating them (via the spin-on film technique) with a layer of SiO2 containing plasmonic indium-tin-oxide nanoparticles (ITO-NPs) of various concentrations. We demonstrated that the surface plasmon resonance absorption, surface morphology, and transmittance of the ITO-NPs dispersed in SiO2 layer at various concentrations (1–7 wt%). We also assessed the plasmonic scattering effects of ITO-NPs within a layer of SiO2 with and without a sub-layer of ITO in terms of optical reflectance, external quantum efficiency, and photovoltaic current-voltage under air mass (AM) 1.5G solar simulation. Compared to an uncoated reference silicon solar cell, applying a layer of SiO2 containing 3 wt% ITO-NPs improved efficiency by 17.90%, whereas applying the same layer over a sub-layer of ITO improved efficiency by 33.27%, due to the combined effects of anti-reflection and plasmonic scattering. View Full-Text
Keywords: ITO nanoparticles (ITO NPs); photovoltaic performance; plasmonic scattering; anti-reflective layer ITO nanoparticles (ITO NPs); photovoltaic performance; plasmonic scattering; anti-reflective layer
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Ho, W.-J.; Chen, G.-Y.; Liu, J.-J. Enhancing Photovoltaic Performance of Plasmonic Silicon Solar Cells with ITO Nanoparticles Dispersed in SiO2 Anti-Reflective Layer. Materials 2019, 12, 1614.

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