Optical properties of peroxy link defects from first principles

Abstract : Peroxy link defect (POL) is considered a main network defect in oxygen rich silica. However it has not yet been experimentally detected because of its very weak optical absorption, diamagnetic nature and its unknown radiative luminescent transitions. Only insights of its optical properties have been provided theoretically by mean-field theoretical studies on small models, which do not properly recreate the many body behavior of bulk silica. Our study presents the electronic and optical properties of peroxy link defect through the state of the art many body perturbation theory methods, namely GW approximation and BetheSalpeter equation in “large supercells”
Type de document :
Communication dans un congrès
11th International Symposium on SiO2, Advanced Dielectrics and Related Devices, Jun 2016, Nice, France. pp.97-98, SiO2 2016 Proceedings
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https://hal.archives-ouvertes.fr/hal-01528238
Contributeur : Sylvain Girard <>
Soumis le : dimanche 28 mai 2017 - 10:45:00
Dernière modification le : jeudi 26 juillet 2018 - 12:09:48

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  • HAL Id : hal-01528238, version 1

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Blaz Winkler, Layla Martin-Samos, Nicolas Richard, Sylvain Girard, Aziz Boukenter, et al.. Optical properties of peroxy link defects from first principles. 11th International Symposium on SiO2, Advanced Dielectrics and Related Devices, Jun 2016, Nice, France. pp.97-98, SiO2 2016 Proceedings. 〈hal-01528238〉

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