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dc.contributor.authorKoval, N.E.
dc.contributor.authorDa Pieve, F.
dc.contributor.authorArtacho, E.
dc.date2020
dc.date.accessioned2020-11-12T11:18:44Z
dc.date.available2020-11-12T11:18:44Z
dc.identifier.urihttps://orfeo.belnet.be/handle/internal/7640
dc.descriptionMotivated 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.
dc.languageeng
dc.titleAb initio electronic stopping power for protons in Ga0.5In0.5P/GaAs/Ge triple-junction solar cells for space applications
dc.typeArticle
dc.subject.frascatiPhysical sciences
dc.audienceScientific
dc.subject.freesolar cells
dc.subject.freeradiation damage
dc.subject.freeelectronic stopping power
dc.subject.freesemiconductor
dc.subject.freeinterface
dc.source.titleRoyal Society Open Science
dc.source.volume7
dc.source.issue11
dc.source.pageA200925
Orfeo.peerreviewedYes
dc.identifier.doi10.1098/rsos.200925


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