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ANR funded project

Produits, Procédés et Matériaux (CE07) 2014
Projet IRTeGlass

Telluride glasses as materials for far-infrared applications : a theoretical and spectroscopic investigation

Recently a new generation of ternary telluride glasses in the Ge-Te-Se, Ge-Ga-Te and Ge-Te-I systems have been developed by the “Glass and Ceramics” team of the UMR 6226 laboratory in Rennes. These materials exhibit some of the largest infrared transparency windows reported so far, as well as interesting mechanical properties, for passive optical applications such as remote sensing or thermal imaging.

Incorporation of small amounts, i.e. less than 10%, of gallium, selenium or iodine in the parent composition GeTe4 dramatically increases the glass forming ability and stability towards crystallization of the corresponding materials. The precise role of these elements in the glass matrix is unclear and their impact on the glass structure and physical properties has to be elucidated.

Our project aims at developing a synergetic approach using first-principles molecular dynamics simulations, solid-state NMR parameters calculations, Infrared/Raman simulations, Infrared/Raman and NMR spectroscopies to rationalize the structure and the optical properties of this new generation of tellurium-based far-infrared transmitting glasses.

Partners

CEMHTI Conditions Extrêmes et Matériaux : Haute Température et Irradiation

CNRS-IPCMS Institut de Physique et Chimie des Matériaux de Strasbourg

ISCR Institut des Sciences Chimiques de Rennes

ISM Institut des Sciences Moléculaires

ANR grant: 448 727 euros
Beginning and duration: octobre 2014 - 36 mois

 

ANR Programme: Produits, Procédés et Matériaux (CE07) 2014

Project ID: ANR-14-CE07-0013

Project coordinator:
Monsieur Eric Furet (Institut des Sciences Chimiques de Rennes)

 

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The project coordinator is the author of this abstract and is therefore responsible for the content of the summary. The ANR disclaims all responsibility in connection with its content.