Comparison of hydrophilic properties of TiO2 thin films prepared by sol–gel method and reactive magnetron sputtering system

Nam, Sang-Hun; Cho, S.-J.; Jung, Chan‐Hee; Boo, Jin‐Hyo; Šícha, J.; Herman, D. A.; Musil, J.; Vlček, Jaroslav

doi:10.1016/j.tsf.2011.04.144

Cited by 43 publications

(22 citation statements)

References 16 publications

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“…The results demonstrate that Ti cation in the TiO 2 film manifests as ?4 valence. A binding energy centered at 530.18 eV in O1s XPS spectrum is mainly attributed to the Ti-O in TiO 2 [36]. This further confirms that sample is TiO 2 .…”

Section: Xps Analysissupporting

confidence: 70%

Optical and photoelectron-chemical properties of TiO2 films by using hydrothermal method

Jiang

Lin

et al. 2015

J Mater Sci: Mater Electron

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In this paper, anatase TiO 2 films have been prepared by hydrothermal method with different NaOH concentrations. The microstructures, optical and photoelectronchemical properties of the as-deposited films were studied. SEM micrographs show the obtained films change from wavelike structure to one dimensional wire structure then to network structure. The average grain size of TiO 2 thin films first increases and then decreases with increasing NaOH concentration. XPS measurement results exhibited the atomic ratio of Ti:O is estimated to be 1:2.21 for the sample deposited at 1 M. Band gaps obtained from UV-Vis absorption spectra shift from 3.29 to 2.23 eV with increasing reaction concentration. The photocurrent of TiO 2 film deposited for 0.5 M reaction concentration is 3.8 lA, which is higher than other samples.

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Section: Xps Analysissupporting

confidence: 70%

Optical and photoelectron-chemical properties of TiO2 films by using hydrothermal method

Jiang

Lin

et al. 2015

J Mater Sci: Mater Electron

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“…It is ascribed to natural oxidation at the surface of the hydrogenated Ti-DLC film. The peak at 530 eV increases with increasing atomic-oxygen fluence, and it is assigned to the Ti-O bond [37]. This result indicates that the amount of oxygen atoms at the surface of the hydrogenated Ti-DLC film is increased by the irradiation by atomic oxygen.…”

Section: Resultsmentioning

confidence: 84%

Resistance of Hydrogenated Titanium-Doped Diamond-Like Carbon Film to Hyperthermal Atomic Oxygen

Kidena

Endo

Takamatsu

et al. 2015

Metals

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The effect of irradiation by a hyperthermal-atomic-oxygen beam on hydrogenated titanium-doped diamond-like carbon (hydrogenated Ti-DLC) films, applied as a solid lubricant for equipment used in low-earth orbit was investigated. Unlike the film thickness of hydrogenated non-doped DLC films, that of hydrogenated Ti-DLC films was found to be constant after the films were exposed to atomic oxygen. In addition, bulk composition of the hydrogenated Ti-DLC film stayed constant, and in particular, hydrogen content in the film did not decrease. These results indicate that a hydrogenated Ti-DLC film can keep its low friction properties under vacuum. Surface chemical analysis showed that a titanium-oxide layer is form on the film by exposure to atomic oxygen. The thickness of the titanium oxide layer was estimated to be about 5 nm from the element distribution in the depth direction of the hydrogenated Ti-DLC films. The titanium-oxide OPEN ACCESSMetals 2015, 5 1958 layer was interpreted to protect the bulk film from erosion by hyperthermal atomic oxygen.

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“…(v) Similar effects, but less pronounced, are observed upon exposure of the fresh, non-calcined catalyst to the CO oxidation reaction atmosphere, while after a preceding O400 conditioning procedure, the CO oxidation reaction does not lead to further growth of the Au NPs [33]. [34] and/or surface carbonate species [35] (see also Section 3.3). In the C(1s) region, two signals are resolved, one at 284.8 eV, which is assumed to be due to ubiquitous carbon [27,35], and a second one at 288.8 eV, which represents carbonate/carboxylate surface species.…”

Section: Transmission Electron Microscopy Measurementsmentioning

confidence: 94%

On the nature of the active Au species: CO oxidation on cyanide leached Au/TiO2 catalysts

2015

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Comparison of hydrophilic properties of TiO2 thin films prepared by sol–gel method and reactive magnetron sputtering system

Cited by 43 publications

References 16 publications

Optical and photoelectron-chemical properties of TiO2 films by using hydrothermal method

Optical and photoelectron-chemical properties of TiO2 films by using hydrothermal method

Resistance of Hydrogenated Titanium-Doped Diamond-Like Carbon Film to Hyperthermal Atomic Oxygen

On the nature of the active Au species: CO oxidation on cyanide leached Au/TiO2 catalysts

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