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Open AccessArticle

Broadband Solar Energy Absorption in Plasmonic Thin-Film Amorphous Silicon Solar Cell

1
Department of Electrical Engineering, Sarhad University of Science & Information Technology, Peshawar 25000, Pakistan
2
US–Pakistan Center for Advanced Studies in Energy, University of Engineering & Technology, Peshawar 25000, Pakistan
3
Department of Computer System Engineering, University of Engineering & Technology, Peshawar 25000, Pakistan
4
Department of Electrical Engineering, University of Engineering & Technology, Mardan 23200, Pakistan
*
Author to whom correspondence should be addressed.
Coatings 2019, 9(10), 638; https://doi.org/10.3390/coatings9100638
Received: 29 August 2019 / Revised: 19 September 2019 / Accepted: 24 September 2019 / Published: 3 October 2019
Improving the light absorption in thin-film solar cell is essential for enhancing efficiency and reducing cost. Here, we propose an ultra-broadband amorphous silicon solar cell based on a periodic array of titanium ring-shaped metasurfaces, which achieves more than 90% absorptance in the visible range of the solar spectrum. The surface plasmon resonance supported by the nanoparticles together with the resonance induced by the metal–insulator–metal Fabry–Perot cavity leads to this broadband absorption. The impact of various materials of functional layers and the geometric structure of the nanoparticle on absorption performance is discussed in detail, and super broadband resonance is achieved after optimization. Moreover, the optimized solar cell is tested for different solar incidence angles and it is found that the structure exhibits high absorption efficiency even at large angles. Thus, the proposed solar cell design may be beneficial for most of the photovoltaic applications. View Full-Text
Keywords: nanoparticle; antireflection coating; broadband absorption; solar incidence angle nanoparticle; antireflection coating; broadband absorption; solar incidence angle
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MDPI and ACS Style

Khan, A.D.; Rehman, Q.; Khan, A.D.; Subhan, F.E.; Noman, M.; Ahmed, S.; Khan, H.A. Broadband Solar Energy Absorption in Plasmonic Thin-Film Amorphous Silicon Solar Cell. Coatings 2019, 9, 638.

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