Skip to Main content Skip to Navigation
Journal articles

Optical absorption spectra of P defects in vitreous silica

Luigi Giacomazzi 1, 2 L. Martin-Samos 1 A. Alessi 3 M. Valant 2 Krishna Chaitanya Gunturu A. Boukenter 3 Y. Ouerdane 3 S. Girard 3 N. Richard 4
1 CNR-IOM - Istituto Officina dei Materiali
2 University of Nova Gorica
3 LHC - Laboratoire Hubert Curien [Saint Etienne]
4 DAM/DIF - DAM Île-de-France
Abstract : We present an investigation of the optical properties of diamagnetic P centers in P-doped silica by means of first-principles calculations, including many-body perturbation theory (GW and Bethe-Salpeter Equation) techniques. The calculated absorption spectra indicate that the 6.9 eV band is originated from the presence of a large number of [(O–)3P(=O)]0 tetrahedra, while only a negligible number of [(O–)2P(=O)2]− tetrahedra could occur. Furthermore we show that positively charged substitutional P atoms can affect the silica absorption spectrum only above ∼8 eV, while three-fold P defects are not likely to occur as they should give rise to strong features, not observed, below ∼6.5 eV.
Document type :
Journal articles
Complete list of metadatas
https://hal-ujm.archives-ouvertes.fr/ujm-01964640
Contributor : Sylvain Girard <>
Submitted on : Saturday, December 22, 2018 - 10:26:16 PM
Last modification on : Monday, January 13, 2020 - 5:46:07 PM

Identifiers

  • HAL Id : ujm-01964640, version 1

Collections

UNIV-ST-ETIENNE | CNRS | IOGS | CEA | DAM | PARISTECH | UNIV-PARIS-SACLAY | UDL

Citation

Luigi Giacomazzi, L. Martin-Samos, A. Alessi, M. Valant, Krishna Chaitanya Gunturu, et al.. Optical absorption spectra of P defects in vitreous silica. Optical Materials Express, OSA pub, 2018, 8 (2), pp.385. ⟨ujm-01964640⟩

Export

BibTeX TEI DC DCterms EndNote

Share

Metrics

Record views

77

Données de recherche