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Irradiation of potassium-silicate glass surfaces: XPS and REELS study
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SYSNO ASEP 0470950 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Irradiation of potassium-silicate glass surfaces: XPS and REELS study Author(s) Romanyuk, Olexandr (FZU-D) RID, ORCID
Jiříček, Petr (FZU-D) RID, ORCID, SAI
Zemek, Josef (FZU-D) RID, ORCID
Houdková, Jana (FZU-D) RID, ORCID
Jurek, Karel (FZU-D) RID, ORCID, SAI
Gedeon, O. (CZ)Number of authors 6 Source Title Surface and Interface Analysis. - : Wiley - ISSN 0142-2421
Roč. 48, č. 7 (2016), s. 543-546Number of pages 4 s. Action 16th European Conference on Applications of Surface and Interface Analysis (ECASIA) Event date 28.09.2015 - 01.10.2015 VEvent location Granada Country ES - Spain Event type EUR Language eng - English Country GB - United Kingdom Keywords electron spectroscopy ; potassium silicate glass ; x-ray irradiation ; electron irradiation Subject RIV BM - Solid Matter Physics ; Magnetism R&D Projects GA15-12580S GA ČR - Czech Science Foundation (CSF) Institutional support FZU-D - RVO:68378271 UT WOS 000379680000033 EID SCOPUS 84952684770 DOI 10.1002/sia.5908 Annotation The surface composition and chemical structure of potassium-silicate glass (K2O-SiO2) with 15m% K2O and vitreous silica glasses (SiO2) were studied. Freshly fractured glass surfaces were irradiated by X-ray AlK radiation (1486.6eV) and an electron beam (2000eV) with various doses. As a consequence of photon irradiation, analyzed glass surfaces were enriched by potassium and the ratio of non-bridging (NBO) to bridging oxygen (BO) increased with exposure dose. Optical properties of glass surfaces were studied by reflection electron energy loss spectroscopy (REELS). Electron irradiation induced changes in the loss spectra of the K2O-SiO2 glass. Refractive indexes of the non-irradiated and irradiated K2O-SiO2 glass were derived. Changes in refractive index were related with potassium ions migration in the irradiated region. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2017
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