Properties of self-oxidized single crystalline perovskite N : BaTiO$_3$ oxynitride epitaxial thin films - Archive ouverte HAL Access content directly
Journal Articles Materials Advances Year : 2022

Properties of self-oxidized single crystalline perovskite N : BaTiO$_3$ oxynitride epitaxial thin films

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Abstract

Epitaxial perovskite self-oxidized oxynitride N : BaTiO$_3$thin films, deposited on 1% Nb-doped SrTiO$_3$(001) single crystals, were obtained by atomic nitrogen assisted molecular beam epitaxy without supplying additional oxygen gas. Their growth, crystalline and electronic structures as well as photo-electrochemical and optical properties were investigated and compared to those of pure BaTiO$_3$ films grown with atomic oxygen on the same substrate. More tetragonal perovskite crystalline structures, profound electronic structure modifications, improved photo-electrochemical properties and an enhanced (almost 10%) optical window for light absorption are demonstrated. This new class of compounds shows promise for a large panel of new applications based on visible light absorption.
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Dates and versions

cea-03627060 , version 1 (01-04-2022)

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Attribution - CC BY 4.0

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Anyssa Derj, Hélène Magnan, Cristian Mocuta, Patrick Le Fèvre, Jocelyne Leroy, et al.. Properties of self-oxidized single crystalline perovskite N : BaTiO$_3$ oxynitride epitaxial thin films. Materials Advances, 2022, 3, pp.3135-3142. ⟨10.1039/D1MA01082D⟩. ⟨cea-03627060⟩
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