dc.contributor.author | Trukhin, Anatoly N. | |
dc.date.accessioned | 2020-10-01T13:48:58Z | |
dc.date.available | 2020-10-01T13:48:58Z | |
dc.date.issued | 2019 | |
dc.identifier.issn | 0022-3093 | |
dc.identifier.uri | https://dspace.lu.lv/dspace/handle/7/52582 | |
dc.description | This work was supported by the Latvian Science Council Grant No lzp-2018/1-0289. | en_US |
dc.description.abstract | Photoluminescence of nominally pure oxidized and fluorinated silica glasses, which have good optical transparency in the optical gap, has been investigated under excitation by excimer lasers. The data are compared with the data for chlorinated silica glass, as well as glass containing OH. The excitation of localized states provides the release and capture of charge carriers, despite the low absorption coefficient. The holes are self-trapped. The recombination in the thermally activated or tunnel process creates luminescence of oxygen-deficient centers. It is concluded that oxidation and fluorination do not change the concentration of localized states, but they change the electronic transitions of the localized states to higher energies. In type III glass with a high OH content, luminescence is suppressed by the presence of hydrogen and appears after irradiation with 7.9 eV photons of the F2 laser. This observation suggests the existence of localized states even in these glasses. | en_US |
dc.description.sponsorship | Latvian Science Council Grant No lzp-2018/1-0289; Institute of Solid State Physics, University of Latvia as the Center of Excellence has received funding from the European Union’s Horizon 2020 Framework Programme H2020-WIDESPREAD-01-2016-2017-TeamingPhase2 under grant agreement No. 739508, project CAMART² | en_US |
dc.language.iso | eng | en_US |
dc.publisher | Elsevier B.V. | en_US |
dc.relation | info:eu-repo/grantAgreement/EC/H2020/739508/EU/Centre of Advanced Material Research and Technology Transfer/CAMART² | en_US |
dc.relation.ispartofseries | Journal of Non-Crystalline Solids;521; 119525 | |
dc.rights | info:eu-repo/semantics/openAccess | en_US |
dc.subject | Research Subject Categories::NATURAL SCIENCES:Physics | en_US |
dc.subject | Pure silica glass | en_US |
dc.subject | Localized states | en_US |
dc.subject | Self-trapped hole | en_US |
dc.subject | Recombination luminescence | en_US |
dc.subject | Oxygen deficient centers | en_US |
dc.subject | Excimer lasers | en_US |
dc.subject | Time resolved photoluminescence | en_US |
dc.title | Luminescence of localized states in oxidized and fluorinated silica glass | en_US |
dc.type | info:eu-repo/semantics/article | en_US |
dc.identifier.doi | 10.1016/j.jnoncrysol.2019.119525 | |