Scandium oxide thin films deposited by dual ion beam sputtering for high-power laser applications

Krous, E.; Patel, D.; Langston, Peter; Menoni, Carmen S.; Markosyan, A. S.; Route, R.; Fejer, M. M.; Nguyễn, Duc Tung; Emmert, Luke A.; Rudolph, Wolfgang

doi:10.1364/oic.2010.fa10

Cited by 7 publications

(8 citation statements)

References 9 publications

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“…In order to reduce test errors, the peak positions of elements were calibrated from the hydrocarbon contamination using the C 1s peak at 284.6 eV, which is usually used as standard peak position in XPS spectra. All Sc 2 O 3 thin films were treated by Ar + ions bombardment in order to eliminate contributions of surface contamination by organic compounds and atmospheric oxidation [22].…”

Section: Film Characterizationmentioning

confidence: 99%

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Relationship between Oxygen Defects and Properties of Scandium Oxide Films Prepared by Ion-Beam Sputtering

Kong

Pu²,

Ma³

et al. 2019

Coatings

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Scandium oxide (Sc2O3) thin films with different numbers of oxygen defects were prepared by ion-beam sputtering under different oxygen flow rates. The results showed that the oxygen defects heavily affected crystal phases, optical properties, laser-induced damage threshold (LIDT) and surface quality of Sc2O3 films. The thin film under 0 standard-state cubic centimeter per minute (sccm) oxygen flow rate had the largest number of oxygen defects, which resulted in the lowest transmittance, LIDT and the worst surface quality. In addition, the refractive index of 0 sccm Sc2O3 film could not be measured in the same way. When the oxygen flow rate was 15 sccm, the Sc2O3 film possessed the best transmittance, refractive index, LIDT and surface roughness due to the lowest number of oxygen defects. This work elucidated the relationship between oxygen defects and properties of Sc2O3 films. Controlling oxygen flow rate was an important step of limiting the number of oxygen defects, which is of great significance for industrial production.

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Section: Film Characterizationmentioning

confidence: 99%

“…In this case, oxygen defects will be formed in films. Krous et al [22] indicated that there are oxygen defects in Sc 2 O 3 films deposited by IBS. Langston et al [3] shown that a correlation exists between the oxygen interstitials in Sc 2 O 3 films and optical absorption in the films.…”

Section: Introductionmentioning

confidence: 99%

Relationship between Oxygen Defects and Properties of Scandium Oxide Films Prepared by Ion-Beam Sputtering

Kong

Pu²,

Ma³

et al. 2019

Coatings

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“…To enhance the thermal stability and photocatalytic action, metal oxides such as ZnO 2 , SiO 2 , La 2 O 3 , etc., have also been utilized [ 14 , 15 ]. Moreover, the distinctive features of zirconia, such as the high refractive index, broad optical band gap, low absorption, and dispersion in the visible and near-infrared spectrum areas [ 22 , 23 ] are appealing. Previously, it was observed that adding ZrO 2 to TiO 2 improved the phase stability, surface area and ultimately photocatalytic effects [ 24 , 25 , 26 ].…”

Section: Introductionmentioning

confidence: 99%

Production of Ceramics/Metal Oxide Nanofibers via Electrospinning: New Insights into the Photocatalytic and Bactericidal Mechanisms

Algethami,

Amna,

S. Alqarni

et al. 2023

Materials

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Environmental pollution is steadily rising and is having a negative influence on all living things, especially human beings. The advancement of nanoscience in recent decades has provided potential to address this issue. Functional metal oxide nanoparticles/nanofibers have been having a pull-on effect in the biological and environmental domains of nanobiotechnology. Current work, for the first time, is focusing on the electrospinning production of Zr0.5Sn0.5TiO3/SnO2 ceramic nanofibers that may be utilized to battle lethal infections swiftly and inexpensively. By using characterizations like XRD, FT–IR, FESEM, TEM, PL, and UV–Vis–DRS, the composition, structure, morphology, and optical absorption of samples were determined. The minimum inhibitory concentration (MIC) approach was used to investigate the antibacterial activity. Notably, this research indicated that nanofibers exert antibacterial action against both Gram-positive and Gram-negative bacteria with a MIC of 25 µg/mL. Furthermore, negatively charged E. coli was drawn to positively charged metal ions of Zr0.5Sn0.5TiO3/SnO2, which showed a robust inhibitory effect against E. coli. It was interesting to discover that, compared to pure TiO2, Zr0.5Sn0.5TiO3/SnO2 nanofibers revealed increased photocatalytic activity and exceptional cyclability to the photodegradation of Rhodamine B. The composite completely degrades dye in 30 min with 100% efficacy and excellent (97%) reusability. The synergetic effects of Zr0.5Sn0.5TiO3 and SnO2 may be responsible for increased photocatalytic and bactericidal activity.

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“…6,23,24 However, the published sub-picosecond (ps) LIDT results for Sc 2 O 3 or Y 2 O 3 films, indicate that sesquioxides might be good alternatives for HfO 2 . 11,[25][26][27] Especially Sc 2 O 3 , which is a promising high-refractive-index material that exhibits slightly larger optical bandgap (5.7 eV) 28 than HfO 2 (5.55 eV). 29,30 In fact, electron-beam-deposited Sc 2 O 3 and Y 2 O 3 thin films, tested at 500 fs and 1030 nm by a single shot and 100 shots at 10 Hz repetition rate, showed LIDTs comparable to that of HfO 2 .…”

Section: Introductionmentioning

confidence: 99%

Sub-picosecond 1030 nm laser-induced damage threshold evaluation of pulsed-laser deposited sesquioxide thin films

et al. 2022

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Dielectric sesquioxide films (Sc 2 O 3 , Y 2 O 3 , and Lu 2 O 3 ) were fabricated by pulsedlaser deposition and tested in terms of their laser damage properties for pulses of 500 fs duration, at a wavelength of 1030 nm and at a 10 Hz repetition rate. Comparable tests were performed with magnetron-sputtered thin films of established optical-coating materials (SiO 2 , HfO 2 , and Nb 2 O 5 ), whose results served as a benchmark. The laser-induced damage thresholds of the sesquioxides are comparable to each other, and in the multi-pulse test regime show values close to ones of HfO 2 coatings. A lower damage threshold was observed for the polycrystalline Lu 2 O 3 film grown on sapphire compared to single-crystal Lu 2 O 3 grown on yttrium aluminium garnet (Y 3 Al 5 O 12 ), attributed to the highly textured morphology and potential for a greater density of defect states in these films. We conclude that pulsed-laser deposition is a potential fabrication method of sesquioxides for use in high-power resistant optical components for ultrashort-pulse lasers. © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 International License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

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Scandium oxide thin films deposited by dual ion beam sputtering for high-power laser applications

Cited by 7 publications

References 9 publications

Relationship between Oxygen Defects and Properties of Scandium Oxide Films Prepared by Ion-Beam Sputtering

Relationship between Oxygen Defects and Properties of Scandium Oxide Films Prepared by Ion-Beam Sputtering

Production of Ceramics/Metal Oxide Nanofibers via Electrospinning: New Insights into the Photocatalytic and Bactericidal Mechanisms

Sub-picosecond 1030 nm laser-induced damage threshold evaluation of pulsed-laser deposited sesquioxide thin films

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