Optical properties of nanometric TiO2 clusters deposited on thin films by high pressure sputtering

Martínez-Morillas, R.; Sánchez-Marcos, J.; Andrés, A. de; Prieto, C.

doi:10.1016/j.surfcoat.2009.11.007

Cited by 8 publications

(1 citation statement)

References 18 publications

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“…To avoid these problems, TiO 2 thin films have recently been used. These films were prepared by several methods including thermal [17] or anodic [18] oxidation of titanium, sol-gel [19][20][21][22], spray deposition [23], chemical vapor deposition [24][25][26][27], plasma-enhanced chemical vapor deposition, [28] electron beam evaporation [29] and reactive sputtering [30,31]. Among these methods, sputter deposition techniques are widely utilized to obtain uniform and dense TiO 2 thin films with well-controlled stoichiometry [32].…”

Section: Introductionmentioning

confidence: 99%

Photolysis and Photocatalysis of 1,4 Dichlorobenzene Using Sputtered TiO<sub>2</sub> Thin Films

Mahmoud

Yassitepe

Shah

2012

MSF

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The rate of 1,4-dichlorobenzene (1,4-DCB) degradation in the aqueous phase was investigated under direct photolysis or photocatalysis in the presence of TiO2 thin film prepared by reactive sputtering using a metal Ti target and a reaction sputtering atmosphere of argon and oxygen. The prepared thin films were analyzed by X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD). XPS confirmed the presence of completely oxidized TiO2 films whereas XRD showed that the films contained a mixture of rutile and anatase phases with rutile being approximately 30% of the total volume. Two lamps, both of the same power but different wavelength range were employed as irradiation sources. Photocatalysis showed faster removal of 1,4-DCB as compared to direct photolysis. The complete degradation was attained using the freshly prepared TiO2 sample. The intermediate produced during the photocatalysis was benzoquinone. Photolysis using visible irradiation was relatively slower and both benzoquinone and hydroquinone were formed as intermediates. Higher initial degradation rates were observed when the same film was re-used, most probably due to the effect of washing of the TiO2 thin films surface with methanol.

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Section: Introductionmentioning

confidence: 99%

Photolysis and Photocatalysis of 1,4 Dichlorobenzene Using Sputtered TiO<sub>2</sub> Thin Films

Mahmoud

Yassitepe

Shah

2012

MSF

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Investigation of silver diffusion in TiO2/Ag/TiO2 coatings

et al. 2014

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Low emissivity (low-E) coatings consisting of dielectric/silver/dielectric multi-layer stacks are applied to large-area architectural glazing to reduce heat losses from buildings. In this work TiO2/Ag/TiO2 stacks were deposited onto soda-lime glass by pulsed DC reactive magnetron sputtering. The coatings were annealed in the range 100−600 o C to study silver diffusion through neighbouring layers. Depth-profiling analysis was performed on these samples using time-of-flight secondary ion mass spectrometry and selected samples were also analysed by X-ray photoelectron spectroscopy and Rutherford backscattering spectrometry. Fick's second diffusion law

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Inverse logarithmic derivative method for determining the energy gap and the type of electron transitions as an alternative to the Tauc method

2019

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Optical properties of nanometric TiO2 clusters deposited on thin films by high pressure sputtering

Cited by 8 publications

References 18 publications

Photolysis and Photocatalysis of 1,4 Dichlorobenzene Using Sputtered TiO<sub>2</sub> Thin Films

Photolysis and Photocatalysis of 1,4 Dichlorobenzene Using Sputtered TiO<sub>2</sub> Thin Films

Investigation of silver diffusion in TiO2/Ag/TiO2 coatings

Inverse logarithmic derivative method for determining the energy gap and the type of electron transitions as an alternative to the Tauc method

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