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Please use this identifier to cite or link to this item:

http://hdl.handle.net/20.500.12358/28609
TitleHighly Efficient Solar Energy Conversion Using Graded-index Metamaterial Nanostructured Waveguide
Title in ArabicHighly Efficient Solar Energy Conversion Using Graded-index Metamaterial Nanostructured Waveguide
Abstract

In this paper, a graded-index metamaterial (GIM) nanostructured waveguide is proposed to enhance the performance of solar cells via a tunable absorption spectrum. The proposed four-layer nanostructured waveguide consists of two GIM and SiNx films which are squeezes between glass substrate and air. Using a transmission matrix method, the transmittances as well as the reflectance are calculated for different film thicknesses, refractive indices and incidence angles. We demonstrate that the reflectance is nearly zero where SiNx refractive index is 2.2 in vicinity of 620 nm. As the incident angle increases, the minimum reflectance wavelength blueshifts and slightly increase in the value. In addition, the variation in the minimum reflectance due to a change in the thickness of SiNx layer studied in detail. We show that the absorbance of a solar cell can be easily controlled by varying refractive index and/or thickness of SiNx layer in the proposed nanostructure. The result shows that the best efficiency occurs at normal incidence, n2 = 2.2, and d2 = 30 nm.

Authors
El-Khozondar, Hala J.
El-Khozondar, Rifa J.
Shama, Abhishek
Ahmed, Kawsar
Dhasarathan, Vigneswaran
TypeJournal Article
Date2020
LanguageEnglish
Subjects
metamaterial
graded structure
reflectance
refractive index
Published inJournal of Optical Communications
Citation
Item linkItem Link
DOI10.1515/joc-2019-0285
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  • Staff Publications- Faculty of Engineering [908]
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The institutional repository of the Islamic University of Gaza was established as part of the ROMOR project that has been co-funded with support from the European Commission under the ERASMUS + European programme. This publication reflects the views only of the author, and the Commission cannot be held responsible for any use which may be made of the information contained therein.

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The institutional repository of the Islamic University of Gaza was established as part of the ROMOR project that has been co-funded with support from the European Commission under the ERASMUS + European programme. This publication reflects the views only of the author, and the Commission cannot be held responsible for any use which may be made of the information contained therein.

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