Tailoring the photovoltaic effect in (111) oriented BiFeO3/LaFeO3 superlattices - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of Physics: Condensed Matter Année : 2020

Tailoring the photovoltaic effect in (111) oriented BiFeO3/LaFeO3 superlattices

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Résumé

Ferroelectric and photovoltaic properties of (BiFeO3)((1-x)?)/(LaFeO3)(x?) superlattices grown by pulsed laser deposition have been investigated (? being the bilayer thickness). For a high concentration of BiFeO3 a ferroelectric state is observed simultaneously with a switchable photovoltaic response. In contrast for certain concentration of LaFeO3 a non-switchable photovoltaic effect is evidenced. Such modulation of the PV response in the superlattices is attributed to the ferroelectric to paraelectric phase transition which is controlled with the increase of x. Remarkably, concomitant to this change of PV mechanism, a change of the conduction mechanism also seems to take place from a bulk-limited to an interface-limited transport as x increases.

Dates et versions

hal-03627236 , version 1 (01-04-2022)

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Citer

J. Belhadi, S. Yousfi, M. El Marssi, D. C. Arnold, H. Bouyanfif. Tailoring the photovoltaic effect in (111) oriented BiFeO3/LaFeO3 superlattices. Journal of Physics: Condensed Matter, 2020, 32 (13), ⟨10.1088/1361-648X/ab5e11⟩. ⟨hal-03627236⟩
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