Odungattu, Ragesh (2016) Modelling and Analysis for Conversion Efficiency Improvement of Nano-Structured GaAs Solar Cells by Reducing the Reflection Losses. Coursework Masters thesis, University of Southern Queensland. (Unpublished)
Abstract
This project primarily focus on how to increase the conversion efficiency of Nano-structured GaAs solar cells by reducing the losses caused due to the reflection of sunlight. Due to their extra ordinary properties, they are widely used in the solar cell. Due to the enhanced light absorption, high short circuit current are found in most Nano-structured cells. Usually the sun light directly hits on the solar panel but it reflects back and reducing the light transmission into the solar panel or cells. The thin film solar cells which comprises of Nano grating structures are useful to improve the overall conversion efficiency of solar panels.
Triangular, trapezoidal, inverse trapezoidal and rectangular shapes are the different shapes of Nano-grating structures. In order to increase the light conversion efficiency, the Nano grating structure which have the capacity to trap more light from sun, resulting in reduction of light reflection from the panel are used. Different grating heights are used in this project ranging from 50nm to 400nm. In order to attain numerical simulation calculations, Finite Difference Time Domain (FDTD) method has been used to simulate reflection, transmission and absorption of light of different Nano grating structure such as triangular, inverse trapezoidal, trapezoidal and rectangular deposited on gallium arsenide (GaAs) semiconductor substrate. Graphs are plotted with the help of excel from the simulated result. After varying the grating height of different Nano grating I noticed variation in reflection, absorption and transmission of light. Based on the simulation results from light reflection of different Nano-structures, I have proposed a triangular designed Nano-structure that reflects less light and provide greater conversion efficiency of solar cells.
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| Item Type: | Thesis (Non-Research) (Coursework Masters) |
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| Item Status: | Live Archive |
| Additional Information: | Current UniSQ staff and students can request access to this thesis. Please email research.repository@unisq.edu.au with a subject line of SEAR thesis request and provide: Name of the thesis requested and Your name and UniSQ email address. |
| Faculty/School / Institute/Centre: | Current - Faculty of Business, Education, Law and Arts - School of Law and Justice (1 Jul 2013 -) |
| Supervisors: | Das, Narottam |
| Qualification: | Master of Engineering Sciences (Electric and Electronic) |
| Date Deposited: | 20 Jul 2026 00:08 |
| Last Modified: | 20 Jul 2026 00:08 |
| Uncontrolled Keywords: | Nano-structured GaAs solar cells, Nano-grating structures, Finite Difference Time Domain, FDTD, gallium arsenide semiconductor substrate, GaAs |
| URI: | https://sear.unisq.edu.au/id/eprint/53278 |
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