Investigation of physicochemical and tribological properties of transparent oxide semiconducting thin films based on Ti-V oxides

Mazur, М.; Sieradzka, Karolina; Kaczmarek, Danuta; Domaradzki, J.; Wojcieszak, Damian; Domanowski, P.

doi:10.2478/s13536-013-0122-8

Cited by 7 publications

(3 citation statements)

References 22 publications

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“…These are anatase, rutile and brukite [27]. The most important properties of this compound are, among others, environmental neutrality, high chemical resistance, nontoxicity, biocompatibility, hydrophilicity, photocatalytic and antibacterial properties [28,29]. Thanks to these features, the oxide has found many applications in medicine and dentistry.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Nanocomposite Alginate Fibers Modified with Titanium Dioxide and Zinc Oxide

2020

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Active dressings based on natural polymers are becoming increasingly popular on the market. One of such polymers is alginate, which is characterized by biodegradability, resorbability, has no carcinogenic properties, does not have allergenic or hemostatic properties, and has a confirmed lack of toxicity. However, this polymer does not show biocidal and biostatic properties, therefore the purpose of this research was to select the appropriate conditions for the production of calcium alginate fibers modified with nano titanium dioxide and nano zinc oxide. It was assumed that the presence of nano metal oxide fillers will give antibacterial properties to formed fibers, which were used to form nonwovens. The following article presents a comparative analysis of nonwovens made of alginate fibers, without nano additives, with nonwovens made of alginate fibers containing in their structure 7% titanium dioxide and nonwovens made of alginate fibers containing 2% ZnO. The selection of the nano additive content was determined by the spinning ability of the developed polymer solutions. Based on the results contained in the article, it was found that the introduction of modifiers in the structure of fibers increases the diameter of the fiber pores, which improves the sorption and retention properties of the obtained fibers, and also gives differentiated antibacterial properties to the obtained nonwovens depending on the type of nano additive used. Greater activity against Escherichia coli, Staphylococcus aureus strains and Aspergillus Niger molds was shown in nonwovens made of 2% ZnO modified fibers compared to nonwovens made from TiO2 modified fibers.

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Section: Introductionmentioning

confidence: 99%

Preparation of Nanocomposite Alginate Fibers Modified with Titanium Dioxide and Zinc Oxide

2020

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“…These include high energy magnetron sputtering methods, e.g. HPPMS (High Power Pulse Magnetron Sputtering) and HERMS method (High Energy Reactive Magnetron Sputtering) [2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Mechanical and structural properties of titanium dioxide deposited by innovative magnetron sputtering process

Wojcieszak

Mazur

Indyka

et al. 2015

Materials Science-Poland

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Titanium dioxide thin films were prepared using two types of magnetron sputtering processes: conventional and with modulated plasma. The films were deposited on SiO 2 and Si substrates. X-ray diffraction measurements of prepared coatings revealed that the films prepared using both methods were nanocrystalline. However, the coatings deposited using conventional magnetron sputtering had anatase structure, while application of sputtering with modulated plasma made possible to obtain films with rutile phase. Investigations performed with the aid of scanning electron microscope showed significant difference in the surface morphology as well as the microstructure at the thin film cross-sections. The mechanical properties of the obtained coatings were determined on the basis of nanoindentation and abrasion resistance tests. The hardness was much higher for the films with the rutile structure, while the scratch resistance was similar in both cases. Optical properties were evaluated on the basis of transmittance measurements and showed that both coatings were well transparent in a visible wavelength range. Refractive index and extinction coefficient were higher for TiO 2 with rutile structure.

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“…On the basis of experimental works conducted in the past [9,11,15], vanadium has been chosen as a dopant to modify electrical properties of TiO 2 for the purpose of deposition and characterization of TOS thin films. Vanadium can occur at various oxidation states, what enables on manufacturing of thin films with different crystallographic structure and properties [9,16].…”

Section: Introductionmentioning

confidence: 99%

Optical and electrical properties of (Ti-V)Ox thin film as n-type Transparent Oxide Semiconductor

Mazur¹,

Domaradzki²,

Wojcieszak³

2014

Bulletin of the Polish Academy of Sciences Technical Sciences

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Abstract. In this paper, the influence of vanadium doping on optical and electrical properties of titanium dioxide thin films has been discussed. The (Ti-V)Ox thin films was deposited on silicon and Corning glass substrates using high energy reactive magnetron sputtering process. Measurements performed with the aid of x-ray diffraction revealed, that deposited thin film was composed of nanocrystalline mixture of TiO2-anatase, V2O3 and β-V2O5 phases. The amount of vanadium in the thin film, estimated on the basis of energy dispersive spectroscopy measurement, was equal to 3 at. %. Optical properties were evaluated based on transmission and reflection measurements. (Ti-V)Ox thin film was well transparent and the absorption edge was shifted by only 11 nm towards longer wavelengths in comparison to undoped TiO2. Electrical measurements revealed, that investigated thin film was transparent oxide semiconductors with n-type electrical conduction and resistivity of about 2.7 · 10 5 Ωcm at room temperature. Additionally, measured I-V characteristics of TOS-Si heterostructure were nonlinear and asymmetrical.

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Investigation of physicochemical and tribological properties of transparent oxide semiconducting thin films based on Ti-V oxides

Cited by 7 publications

References 22 publications

Preparation of Nanocomposite Alginate Fibers Modified with Titanium Dioxide and Zinc Oxide

Preparation of Nanocomposite Alginate Fibers Modified with Titanium Dioxide and Zinc Oxide

Mechanical and structural properties of titanium dioxide deposited by innovative magnetron sputtering process

Optical and electrical properties of (Ti-V)Ox thin film as n-type Transparent Oxide Semiconductor

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