Ab initio electronic stopping power for protons in Ga0.5In0.5P/GaAs/Ge triple-junction solar cells for space applications
Motivated by the radiation damage of solar panels in space, firstly, the results of Monte Carlo particle transport simulations are presented for proton impact on triple-junction Ga0.5In0.5P/GaAs/Ge solar cells, showing the proton projectile penetration in the cells as a function of energy. It is fol...
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2020-11-01
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Online Access: | https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.200925 |
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doaj-faead1942dbe442cbf5b85c38f8b7c652021-01-15T15:05:37ZengThe Royal SocietyRoyal Society Open Science2054-57032020-11-0171110.1098/rsos.200925200925Ab initio electronic stopping power for protons in Ga0.5In0.5P/GaAs/Ge triple-junction solar cells for space applicationsNatalia E. KovalFabiana Da PieveEmilio ArtachoMotivated by the radiation damage of solar panels in space, firstly, the results of Monte Carlo particle transport simulations are presented for proton impact on triple-junction Ga0.5In0.5P/GaAs/Ge solar cells, showing the proton projectile penetration in the cells as a function of energy. It is followed by a systematic ab initio investigation of the electronic stopping power (ESP) for protons in different layers of the cell at the relevant velocities via real-time time-dependent density functional theory calculations. The ESP is found to depend significantly on different channelling conditions, which should affect the low-velocity damage predictions, and which are understood in terms of impact parameter and electron density along the path. Additionally, we explore the effect of the interface between the layers of the multilayer structure on the energy loss of a proton, along with the effect of strain in the lattice-matched solar cell. Both effects are found to be small compared with the main bulk effect. The interface energy loss has been found to increase with decreasing proton velocity, and in one case, there is an effective interface energy gain.https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.200925solar cellsradiation damageelectronic stopping powersemiconductorinterface |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Natalia E. Koval Fabiana Da Pieve Emilio Artacho |
spellingShingle |
Natalia E. Koval Fabiana Da Pieve Emilio Artacho Ab initio electronic stopping power for protons in Ga0.5In0.5P/GaAs/Ge triple-junction solar cells for space applications Royal Society Open Science solar cells radiation damage electronic stopping power semiconductor interface |
author_facet |
Natalia E. Koval Fabiana Da Pieve Emilio Artacho |
author_sort |
Natalia E. Koval |
title |
Ab initio electronic stopping power for protons in Ga0.5In0.5P/GaAs/Ge triple-junction solar cells for space applications |
title_short |
Ab initio electronic stopping power for protons in Ga0.5In0.5P/GaAs/Ge triple-junction solar cells for space applications |
title_full |
Ab initio electronic stopping power for protons in Ga0.5In0.5P/GaAs/Ge triple-junction solar cells for space applications |
title_fullStr |
Ab initio electronic stopping power for protons in Ga0.5In0.5P/GaAs/Ge triple-junction solar cells for space applications |
title_full_unstemmed |
Ab initio electronic stopping power for protons in Ga0.5In0.5P/GaAs/Ge triple-junction solar cells for space applications |
title_sort |
ab initio electronic stopping power for protons in ga0.5in0.5p/gaas/ge triple-junction solar cells for space applications |
publisher |
The Royal Society |
series |
Royal Society Open Science |
issn |
2054-5703 |
publishDate |
2020-11-01 |
description |
Motivated by the radiation damage of solar panels in space, firstly, the results of Monte Carlo particle transport simulations are presented for proton impact on triple-junction Ga0.5In0.5P/GaAs/Ge solar cells, showing the proton projectile penetration in the cells as a function of energy. It is followed by a systematic ab initio investigation of the electronic stopping power (ESP) for protons in different layers of the cell at the relevant velocities via real-time time-dependent density functional theory calculations. The ESP is found to depend significantly on different channelling conditions, which should affect the low-velocity damage predictions, and which are understood in terms of impact parameter and electron density along the path. Additionally, we explore the effect of the interface between the layers of the multilayer structure on the energy loss of a proton, along with the effect of strain in the lattice-matched solar cell. Both effects are found to be small compared with the main bulk effect. The interface energy loss has been found to increase with decreasing proton velocity, and in one case, there is an effective interface energy gain. |
topic |
solar cells radiation damage electronic stopping power semiconductor interface |
url |
https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.200925 |
work_keys_str_mv |
AT nataliaekoval abinitioelectronicstoppingpowerforprotonsinga05in05pgaasgetriplejunctionsolarcellsforspaceapplications AT fabianadapieve abinitioelectronicstoppingpowerforprotonsinga05in05pgaasgetriplejunctionsolarcellsforspaceapplications AT emilioartacho abinitioelectronicstoppingpowerforprotonsinga05in05pgaasgetriplejunctionsolarcellsforspaceapplications |
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