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Design and Analysis of Nano-Structured Gratings for Conversion Efficiency Improvement in GaAs Solar Cells
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Energies 2016, 9(9), 756; doi:10.3390/en9090756

Nano-Structured Gratings for Improved Light Absorption Efficiency in Solar Cells

1
Science Faculty, Department of Physics, University of Guilan, Rasht 41938-33697, Iran
2
School of Engineering and Computer Science, Victoria University of Wellington, P.O. Box 600, Wellington 6140, New Zealand
3
School of Mechanical and Electrical Engineering, University of Southern Queensland, Toowoomba, QLD 4350, Australia
*
Author to whom correspondence should be addressed.
Academic Editor: Peter V. Schaeffer
Received: 22 July 2016 / Revised: 22 August 2016 / Accepted: 2 September 2016 / Published: 19 September 2016
(This article belongs to the Special Issue Nano-Structured Solar Cells)
View Full-Text   |   Download PDF [3235 KB, uploaded 19 September 2016]   |  

Abstract

Due to the rising power demand and substantial interest in acquiring green energy from sunlight, there has been rapid development in the science and technology of photovoltaics (PV) in the last few decades. Furthermore, the synergy of the fields of metrology and fabrication has paved the way to acquire improved light collecting ability for solar cells. Based on recent studies, the performance of solar cell can improve due to the application of subwavelength nano-structures which results in smaller reflection losses and better light manipulation and/or trapping at subwavelength scale. In this paper, we propose a numerical optimization technique to analyze the reflection losses on an optimized GaAs-based solar cell which is covered with nano-structured features from the same material. Using the finite difference time domain (FDTD) method, we have designed, modelled, and analyzed the performance of three different arrangements of periodic nano-structures with different pitches and heights. The simulated results confirmed that different geometries of nano-structures behave uniquely towards the impinging light. View Full-Text
Keywords: solar cell; photovoltaic cell; FDTD modelling; subwavelength nano-structures; reflection loss solar cell; photovoltaic cell; FDTD modelling; subwavelength nano-structures; reflection loss
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Fadakar Masouleh, F.; Das, N.; Rozati, S.M. Nano-Structured Gratings for Improved Light Absorption Efficiency in Solar Cells. Energies 2016, 9, 756.

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