Improving the radiation hardness of space solar cells via nanophotonic light trapping

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Title: Improving the radiation hardness of space solar cells via nanophotonic light trapping
Authors: Mellor, AV
Hylton, N
Wellens, C
Thomas, T
Al-Saleh, Y
Giannini, V
Braun, A
Hauser, H
Maier, S
Item Type: Conference Paper
Abstract: We show that the radiation-hardness of space solar cells can be significantly improved by employing nanophotonic light trapping. Two light-trapping structures are investigated in this work. In the first, an array of Al nanoparticles is embedded within the anti-reflection coating of a GaInP/InGaAs/Ge solar cell. A combined experimental and simulation study shows that this structure is unlikely to lead to an improvement in radiation hardness. In the second, a diffractive structure is positioned between the middle cell and the bottom cell. Computational results, obtained using an experimentally validated electro-optical simulation tool, show that a properly designed light-trapping structure in this position can lead to a relative 10% improvement in the middle-cell photocurrent at end-of-life.
Issue Date: 21-Nov-2016
Date of Acceptance: 12-Mar-2016
Publisher: IEEE
Copyright Statement: © 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Sponsor/Funder: Commission of the European Communities
European Space Agency / Estec
Imperial College London
Commission of the European Communities
Funder's Grant Number: 248154
Conference Name: 43rd IEEE Photovoltaic Specialists Conference
Keywords: Science & Technology
Physical Sciences
Energy & Fuels
Engineering, Electrical & Electronic
Physics, Applied
Publication Status: Published
Start Date: 2016-06-05
Finish Date: 2016-06-10
Conference Place: Portland, OR, USA
Appears in Collections:Faculty of Engineering
Condensed Matter Theory
Experimental Solid State
Centre for Environmental Policy
Faculty of Natural Sciences

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