Impact of incident light angle on the conversion efficiency of nano-structured GaAs solar cells

Sharma, Manish and Das, Narottam and Helwig, Andreas and Ahfock, Tony (2018) Impact of incident light angle on the conversion efficiency of nano-structured GaAs solar cells. In: 2017 Australasian Universities Power Engineering Conference (AUPEC 2017) , 19-22 Nov 2017, Melbourne, Australia.

Abstract

This paper presents the impact of incident angle of sun lights on the conversion efficiency of nano-structured GaAs solar cells. The incident light angle plays an important role on the conversion efficiency of GaAs solar cells or panels. Over the day, the incident angle of the sunlight falling on the solar cell or panel varies from morning to afternoon and influences the light capturing of the cells or panels, hence affecting the conversion efficiency. The nano-grating structure with effective incident angle can trap more sunlight into the solar cells. In simulation, different nano-grating structures are considered, such as elliptical, triangular, trapezoidal and rectangular shaped with various grating heights from 100-nm to 400-nm. Finite difference time domain (FDTD) simulation tool is used to simulate the light reflection, transmission and absorption in GaAs solar cells. From the simulation results, it has confirmed that the variation of incident light angle affects the light reflection losses, transmission, and absorption for all types of nano-grating shapes. Hence, this simulation results predicted that the light reflection loss is always least for the aspect ratio 0 ~ 0.5 at 0° incident angle, whereas the incident angle has less impact on the nano-grating height above 300 nm.


Statistics for USQ ePrint 33883
Statistics for this ePrint Item
Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: Files associated with this item cannot be displayed due to copyright restrictions.
Faculty/School / Institute/Centre: Current - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering (1 July 2013 -)
Faculty/School / Institute/Centre: Current - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering (1 July 2013 -)
Date Deposited: 08 Oct 2019 07:09
Last Modified: 08 Oct 2019 23:53
Uncontrolled Keywords: reflection, absorption, gratings, photovoltaic cells, nanostructures, gallium arsenide, coatings
Fields of Research : 09 Engineering > 0906 Electrical and Electronic Engineering > 090605 Photodetectors, Optical Sensors and Solar Cells
Socio-Economic Objective: B Economic Development > 85 Energy > 8505 Renewable Energy > 850504 Solar-Photovoltaic Energy
Identification Number or DOI: 10.1109/AUPEC.2017.8282411
URI: http://eprints.usq.edu.au/id/eprint/33883

Actions (login required)

View Item Archive Repository Staff Only