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Dive into the research topics where Sébastien Chenu is active.

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Featured researches published by Sébastien Chenu.


Journal of Materials Chemistry C | 2014

Long-lasting luminescent ZnGa2O4:Cr3+ transparent glass-ceramics

Sébastien Chenu; Emmanuel Véron; Cécile Genevois; Alain Garcia; Guy Matzen; Mathieu Allix

Highly transparent ZnGa2O4 glass-ceramic materials are elaborated via a simple heat treatment of a 55SiO2–5Na2O–17ZnO–23Ga2O3 parent glass composition, which presents nanoscale spinodal phase separation. This optimized glass-ceramic exhibits 50 wt% of ZnGa2O4 nanocrystals showing a homogeneous and tuneable size. To describe the crystallization process, the glass and glass-ceramic nanostructures are studied by high resolution scanning transmission electron microscopy analysis coupled with in situ high temperature X-ray diffraction and optical measurements. From these results, an original mechanism is proposed to explain the crystallization process occurring in a spinodal phase separated glass. Remarkably, red long-lasting luminescence arising from the entire sample volume is observed in the Cr3+ doped transparent glass-ceramics, opening the route to a wider range of performing applications for this famous zinc gallate persistent phosphor.


Chemistry of Materials | 2013

Considerable improvement of long-persistent luminescence in germanium and tin substituted ZnGa2O4

Mathieu Allix; Sébastien Chenu; Emmanuel Véron; Thomas Poumeyrol; El Amin Kouadri-Boudjelthia; Salaheddine Alahraché; Florence Porcher; Dominique Massiot; Franck Fayon


Advanced Optical Materials | 2014

Tuneable Nanostructuring of Highly Transparent Zinc Gallogermanate Glasses and Glass-Ceramics

Sébastien Chenu; Emmanuel Véron; Cécile Genevois; Guy Matzen; Thierry Cardinal; Auriane Etienne; Dominique Massiot; Mathieu Allix


Chemistry of Materials | 2013

Perfectly Transparent Sr3Al2O6 Polycrystalline Ceramic Elaborated from Glass Crystallization

Salaheddine Alahraché; Kholoud Al Saghir; Sébastien Chenu; Emmanuel Véron; Domingos De Sousa Meneses; Ana Isabel Becerro; Manuel Ocaña; Federico Moretti; Gaël Patton; C. Dujardin; F. Cussó; Jean-Pierre Guin; Mariette Nivard; Jean-Christophe Sangleboeuf; Guy Matzen; Mathieu Allix


Chemistry of Materials | 2015

Transparency through Structural Disorder: A New Concept for Innovative Transparent Ceramics

Kholoud Al Saghir; Sébastien Chenu; Emmanuel Véron; Franck Fayon; Matthew R. Suchomel; Cécile Genevois; Florence Porcher; Guy Matzen; Dominique Massiot; Mathieu Allix


Physical Chemistry Chemical Physics | 2014

Light yield sensitization by X-ray irradiation of the BaAl4O7:Eu2+ceramic scintillator obtained by full crystallization of glass

Gaël Patton; Federico Moretti; Andrei Belsky; Kholoud Al Saghir; Sébastien Chenu; Guy Matzen; Mathieu Allix; C. Dujardin


Crystal Growth & Design | 2015

New Transparent Glass-Ceramics Based on the Crystallization of “Anti-glass” Spherulites in the Bi2O3–Nb2O5–TeO2 System

Anthony Bertrand; Julie Carreaud; Gaëlle Delaizir; Masato Shimoda; Jean-René Duclere; Maggy Colas; Michel Belleil; Julie Cornette; Tomokatsu Hayakawa; Cécile Genevois; Emmanuel Véron; Mathieu Allix; Sébastien Chenu; François Brisset; Philippe Thomas


Journées Nationales sur le Frittage par Courant Pulsé 2017 | 2017

Tellurite glasses and glass-ceramics elaborated by SPS

Morgane Dolhen; Anthony Bertrand; Julie Carreaud; Sébastien Chenu; Gaëlle Delaizir; Jean-René Duclere; Maggy Colas; Julie Cornette; Marion Vandenhende; Vincent Couderc; Philippe Thomas


Journal of the American Ceramic Society | 2017

Second harmonic generation in germanotellurite bulk glass-ceramics

Lo Nhat Truong; Marc Dussauze; Mathieu Allix; Sébastien Chenu; Thierry Cardinal; Evelyne Fargin; Luís F. Santos


Optique Bordeaux - Journées Nationales d'Optique Guidée 2016 | 2016

Fibres optiques multimatériaux à cœur vitrocéramique par le procédé "powder in tube"

D. Pomarede; Jean-Louis Auguste; Georges Humbert; Sébastien Chenu; Gaëlle Delaizir; Jean-René Duclere; Mathieu Allix; Cécile Genevois; Emmanuel Véron; Philippe Roy; Philippe Thomas; Guy Matzen

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Guy Matzen

Centre national de la recherche scientifique

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Gaëlle Delaizir

Centre national de la recherche scientifique

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Philippe Thomas

Centre national de la recherche scientifique

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