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Article Dans Une Revue Journal of Luminescence Année : 2017

Correlation between the nanoscale structure and the optical properties of Ce-doped SiO 1.5 thin films

Georges Beainy
Mathieu Stoffel
Michel Vergnat
Hervé Rinnert
Philippe Pareige
Etienne Talbot

Résumé

Cerium doped SiO x (0 ox o 2) thin films have emerged as promising materials for future Si-based blue light emitting devices. The optical properties of these films are strongly dependent on the nanoscale structure such as the spatial distribution of the Ce atoms. These issues have remained difficult to observe in practice by conventional techniques. In this work, we propose to use atom probe tomography which has emerged as a unique technique that is able to provide information about the chemical composition of the films together with a 3D map indicating the position of each atom from a specimen. Ce-doped SiO 1.5 thin films fabricated by evaporation were investigated. The effect of Ce-content has been systematically studied in order to correlate the structure at the nanoscale with the optical properties measured by photoluminescence spectroscopy.
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Dates et versions

hal-01633490 , version 1 (28-02-2019)

Identifiants

Citer

Georges Beainy, Jennifer Weimmerskirch-Aubatin, Mathieu Stoffel, Michel Vergnat, Hervé Rinnert, et al.. Correlation between the nanoscale structure and the optical properties of Ce-doped SiO 1.5 thin films. Journal of Luminescence, 2017, 191, pp.88 - 91. ⟨10.1016/j.jlumin.2016.10.017⟩. ⟨hal-01633490⟩
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