Efficiency enhancement of an ultra-thin film silicon solar cell using conical-shaped nanoparticles: similar to superposi
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Efficiency enhancement of an ultra‑thin film silicon solar cell using conical‑shaped nanoparticles: similar to superposition (top, middle, and bottom) Fazil Sobhani1 · Hamid Heidarzadeh1 · Hamid Bahador1 Received: 15 October 2019 / Accepted: 22 July 2020 © Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract The use of conical-shaped plasmonic nanostructures for light management in an ultra-thin silicon solar cell has been investigated. The optical absorption and hence photocurrent are obtained for several cases of structures using finite difference time domain simulations. In this paper, we demonstrate that the use of superposition theorem causes significant photocurrent enhancement due to the surface plasmonic effects of nanoparticles. For this, at first, we used one conical-shaped nanoparticle at the top side, then in the rear side, and finally, three nanoparticles are used in the top, bottom, and middle sides. Depending on the incident light wavelength, each nanoparticle manipulates the part of the spectrum. The photocurrents of 9.165, 10.463, 16.402, 17.761, and 18.072 mA/cm2, are obtained for a cell without nanoparticles, with one conical-shaped NP at the top, with one conical-shaped NP at the bottom, with two NPs at top and bottom and with three NPs at the top, bottom, and middle, respectively. Finally, the electrical field distribution and generation rate are calculated for proposed structures. Keywords Plasmonic solar cell · Conical-shaped NP · FDTD · Silicon solar cell · superposition
1 Introduction Earth’s surface receives a considerable amount of energy from the Sun every day. Converting of sunlight to electricity is a hopeful technology that may make a significant contribution to the generation of electrical energy in large scales in the near future (Atwater and Polman 2010; Pillai et al. 2007; Spinelli et al. 2012; Sheng et al. 2014; Xia et al. 2016). The ecumenical output of photovoltaics in 2017 was more than 100 GW and is expected to exceed 500 GW by 2020. So, photovoltaics can help significantly to solving the energy problem that our community faces in the next generation (Armaroli and Balzani 2007; Chu and Majumdar 2012). Using advanced manufacturing technology of solar cells in recent * Hamid Bahador [email protected] 1
Department of Electrical and Computer Engineering, University of Mohaghegh Ardabili, Ardabil, Iran
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years, the cost of the panels has been greatly reduced. For instance, current silicon heterojunction PV modules can have lower production costs compared to conventional crystalline silicon solar cells. However, it is still high for the general consumer (Heidarzadeh et al. 2014; Heidarzadeh et al. 2015a; Shah et al. 1999; Green 2003; Green et al. 2018). The design of a solar cell involves specifying the several factors that must be controlled to obtain maximum efficiency (Heidarzadeh et al. 2020). In crystalline silicon solar cells, the efficiency reaches up to 27%, but their thickn
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