Probing densified silica glass structure by molecular oxygen and E’ center formation under electron irradiation

N. Ollier; I. Reghioua; O. Cavani; M. Mobasher; A. Alessi; S. le Floch; Linards Skuja

doi:10.1038/s41598-023-40270-x

Probing densified silica glass structure by molecular oxygen and E’ center formation under electron irradiation

N. Ollier^*
, I. Reghioua
, O. Cavani
, M. Mobasher
, A. Alessi
, S. le Floch
, Linards Skuja

^*Corresponding author for this work

Laboratoire des Solides Irradiés
Universite Claude Bernard Lyon 1

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

This study aims to learn more about the structure of densified silica with focus on the metamict-like silica phase (density = 2.26 g/cm³) by examining the formation of E’ point defects and interstitial molecular oxygen O₂ by 2.5 MeV electron irradiation. High-dose (11 GGy) irradiation creates a metamict-like phase and a large amount of interstitial O₂, which is destroyed upon subsequent additional lower-dose electron irradiation. The O₂ cathodoluminescence (CL) data indicate that the formation of O₂ from peroxy linkages Si–O–O–Si in silica network is strongly dependent on the intertetrahedral void sizes. The position and shape of the O₂ emission line support the idea that the configuration of these voids in metamict phase is close to that of non-densified silica. Moreover, data support the strong correlation between the formation of 3-membered rings of Si–O bonds and E’-centers when silica density increases from 2.20 to 2.26 g/cm³.

Original language	English
Article number	13657
Pages (from-to)	1-9
Journal	Scientific Reports
Volume	13
Issue number	1
DOIs	https://doi.org/10.1038/s41598-023-40270-x
Publication status	Published - Dec 2023

OECD Field of Science

1.3 Physical Sciences

Access to Document

10.1038/s41598-023-40270-x

Cite this

@article{8d2c6c1a3f92431e9a0643dfd6b8277a,

title = "Probing densified silica glass structure by molecular oxygen and E{\textquoteright} center formation under electron irradiation",

abstract = "This study aims to learn more about the structure of densified silica with focus on the metamict-like silica phase (density = 2.26 g/cm3) by examining the formation of E{\textquoteright} point defects and interstitial molecular oxygen O2 by 2.5 MeV electron irradiation. High-dose (11 GGy) irradiation creates a metamict-like phase and a large amount of interstitial O2, which is destroyed upon subsequent additional lower-dose electron irradiation. The O2 cathodoluminescence (CL) data indicate that the formation of O2 from peroxy linkages Si–O–O–Si in silica network is strongly dependent on the intertetrahedral void sizes. The position and shape of the O2 emission line support the idea that the configuration of these voids in metamict phase is close to that of non-densified silica. Moreover, data support the strong correlation between the formation of 3-membered rings of Si–O bonds and E{\textquoteright}-centers when silica density increases from 2.20 to 2.26 g/cm3.",

author = "N. Ollier and I. Reghioua and O. Cavani and M. Mobasher and A. Alessi and \{le Floch\}, S. and Linards Skuja",

note = "Publisher Copyright: {\textcopyright} 2023, Springer Nature Limited.",

year = "2023",

month = dec,

doi = "10.1038/s41598-023-40270-x",

language = "English",

volume = "13",

pages = "1--9",

journal = "Scientific Reports",

issn = "2045-2322",

publisher = "Nature Research",

number = "1",

}

TY - JOUR

T1 - Probing densified silica glass structure by molecular oxygen and E’ center formation under electron irradiation

AU - Ollier, N.

AU - Reghioua, I.

AU - Cavani, O.

AU - Mobasher, M.

AU - Alessi, A.

AU - le Floch, S.

AU - Skuja, Linards

PY - 2023/12

Y1 - 2023/12

N2 - This study aims to learn more about the structure of densified silica with focus on the metamict-like silica phase (density = 2.26 g/cm3) by examining the formation of E’ point defects and interstitial molecular oxygen O2 by 2.5 MeV electron irradiation. High-dose (11 GGy) irradiation creates a metamict-like phase and a large amount of interstitial O2, which is destroyed upon subsequent additional lower-dose electron irradiation. The O2 cathodoluminescence (CL) data indicate that the formation of O2 from peroxy linkages Si–O–O–Si in silica network is strongly dependent on the intertetrahedral void sizes. The position and shape of the O2 emission line support the idea that the configuration of these voids in metamict phase is close to that of non-densified silica. Moreover, data support the strong correlation between the formation of 3-membered rings of Si–O bonds and E’-centers when silica density increases from 2.20 to 2.26 g/cm3.

AB - This study aims to learn more about the structure of densified silica with focus on the metamict-like silica phase (density = 2.26 g/cm3) by examining the formation of E’ point defects and interstitial molecular oxygen O2 by 2.5 MeV electron irradiation. High-dose (11 GGy) irradiation creates a metamict-like phase and a large amount of interstitial O2, which is destroyed upon subsequent additional lower-dose electron irradiation. The O2 cathodoluminescence (CL) data indicate that the formation of O2 from peroxy linkages Si–O–O–Si in silica network is strongly dependent on the intertetrahedral void sizes. The position and shape of the O2 emission line support the idea that the configuration of these voids in metamict phase is close to that of non-densified silica. Moreover, data support the strong correlation between the formation of 3-membered rings of Si–O bonds and E’-centers when silica density increases from 2.20 to 2.26 g/cm3.

UR - https://www.nature.com/articles/s41598-023-40270-x

UR - https://www.scopus.com/pages/publications/85168489501

U2 - 10.1038/s41598-023-40270-x

DO - 10.1038/s41598-023-40270-x

M3 - Article

C2 - 37607961

SN - 2045-2322

VL - 13

SP - 1

EP - 9

JO - Scientific Reports

JF - Scientific Reports

IS - 1

M1 - 13657

ER -

Probing densified silica glass structure by molecular oxygen and E’ center formation under electron irradiation

Abstract

OECD Field of Science

Access to Document

Other files and links

Fingerprint

Cite this