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Absorption Enhancement in Ultrathin Structures Based on Crystalline-Si/Ag Parabola Nanocones Periodic Arrays with Broadband Antireflection Property

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Abstract

In this study, we examine the optical properties and unique features of a novel design of a parabola nanocone consisting of a homogenous shell-like cover layer of crystalline silicon (c-Si) and an Ag core which provides an enhanced absorption efficiency and significant photocurrent conversion during exposure to an incident light. Determining the geometrical sizes of the c-Si/Ag parabola nanocone, we designed an antireflection nanostructure based on certain arrays of investigated cone arrays on a GaAs substrate. We proved that the examined nanostructure shows a low percentage of reflectance of 6.24 % and a significant short current density of ~37.2 mA/m 2 as well as broadband antireflection facility. This understanding paves the way for novel methods toward the use of a simple and two layer nanoparticle in designing efficient and high performance antireflection layers of photovoltaics and solar cells that are able to function over a wide range of spectrum.

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Authors and Affiliations

  1. Department of Electrical and Computer Engineering, Florida International University, 10555 W Flagler St., Miami, FL, 33174, USA

    Arash Ahmadivand & Nezih Pala

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  1. Arash Ahmadivand
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  2. Nezih Pala
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Correspondence to Arash Ahmadivand.

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Ahmadivand, A., Pala, N. Absorption Enhancement in Ultrathin Structures Based on Crystalline-Si/Ag Parabola Nanocones Periodic Arrays with Broadband Antireflection Property. Silicon 9, 25–29 (2017). https://doi.org/10.1007/s12633-015-9341-4

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  • DOI: https://doi.org/10.1007/s12633-015-9341-4

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