Kamil, SA, Chandrappan, J, Portoles, J et al. (2 more authors) (2019) Local structural analysis of erbium-doped tellurite modified silica glass with x-ray photoelectron spectroscopy. Materials Research Express, 6 (8). ARTN 086220. ISSN 2053-1591
Abstract
Ultrafast laser plasma doping (ULPD) is a recently developed technique that enables the blending of femtosecond laser produced plasma from a TeO2 (target) based glass with a SiO2 (substrate) without or minimum phase separation to form a silicate glass. The background oxygen gas pressure plays a major role in ULPD as it directly impacts the plasma plume characteristics, resulting in lower erbium doped tellurite modified silica (EDTS) thickness and refractive index at higher process gas pressure. X-ray photoelectron spectroscopy (XPS) used in this study to analyse the formation of EDTS and local bonding environment of its constituents. This report confirms the presence of both target materials and SiO2 in the resulting EDTS films. XPS of O 1 s core, confirms that bridging oxygen (BO) is more dominant compared to non-bridging oxygen (NBO) in the EDTS glass network, and the amount of BO is more stand out for higher gas pressures when the glass modifiers are relatively smaller in concentration. Our study revealed the nucleation Te and Er to form metal nanoparticles in glass under certain preparation conditions/doping concentration which were previously undetected using other experimental techniques. It is important to control this nanoparticle formation in engineering EDTS for photonic device applications.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2019 IOP Publishing Ltd. This is an author produced version of a paper published in Materials Research Express. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | x-ray photoelectron spectroscopy; ultrafast lasers; laser ablation; optical materials; Er3+ doped glasses |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemical & Process Engineering (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 18 Jul 2019 10:59 |
Last Modified: | 19 Jun 2020 00:38 |
Status: | Published |
Publisher: | IOP Publishing |
Identification Number: | 10.1088/2053-1591/ab28eb |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:148706 |