Journal ArticleDOI
Structural and electrical properties of Fe-doped thin films
TLDR
In this article, the effect of iron doping in thin films deposited by rf sputtering was discussed, and it was shown that iron acts as an acceptor impurity for thin films.Abstract:
The present study discusses the effect of iron doping in thin films deposited by rf sputtering. Iron doping induces a structural transformation from anatase to rutile and electrical measurements indicate that iron acts as an acceptor impurity. Thermoelectric power measurement shows a transition between n-type and p-type electrical conduction for an iron concentration around 0.13 at.%. The highest p-type conductivity at room temperature achieved by iron doping was .read more
Citations
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Photoinduced reactivity of titanium dioxide
TL;DR: In this paper, photo-induced superhydrophilicity was used on the surface of a wide-band gap semiconductor like titanium dioxide (TiO 2 ) for photocatalytic activity towards environmentally hazardous compounds.
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Modified TiO2 For Environmental Photocatalytic Applications: A Review
TL;DR: In this paper, the authors summarized recent research dealing with development of titanium dioxide (TiO2) used for environmental applications and suggested new research directions, including preparation aspects for the development of this promising material.
Journal ArticleDOI
Photoelectrocatalytic materials for environmental applications
TL;DR: In this paper, the authors summarized recent research on and development of semiconductor-based photocatalyst materials that are applicable to environmental remediation and/or chemical synthesis purposes, including the incorporation of noble metal nanoclusters onto the surface of semiconducted particles.
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Photocatalysts with internal electric fields
TL;DR: This review concentrates on the use of electric fields within catalyst particles to mitigate the effects of recombination and back-reaction and to increase photochemical reactivity.
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Titanium-Defected Undoped Anatase TiO2 with p-Type Conductivity, Room-Temperature Ferromagnetism, and Remarkable Photocatalytic Performance
TL;DR: Using anatase TiO2, the most important and widely studied semiconductor, it is demonstrated that metal vacancies (VTi) can be introduced in undoped oxides easily, and the presence of VTi results in many novel physiochemical properties.
References
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Journal ArticleDOI
Quantitative Analysis of Anatase-Rutile Mixtures with an X-Ray Diffractometer
Robert A. Spurr,Howard. Myers +1 more
TL;DR: In this article, the relative amounts of anatase and rutile in mixtures were determined using diffractometry, and a method using the more precise technique of diffraction was developed.
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Electrical and optical properties of TiO2 anatase thin films
TL;DR: In this article, the metastable phase anatase has been shown to have a wider optical absorption gap than rutile thin films, which is consistent with the high mobility, bandlike conduction observed in anatase crystals.
Journal ArticleDOI
TiO2 anatase thin films as gas sensors
TL;DR: In this article, the anatase modification of TiO2 shows properties quite different from those of the extensively studied and used rutile phase, such as high electron mobility and the low density of trapping or compensating centers are considered to have contributed to this good response.
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Investigations of TiO2 films deposited by different techniques
TL;DR: In this article, a strong correlation is found between optical quantities and microscopic properties of TiO2 films, which is connected to variations in density, stoichiometry, hydrogen content (H2O), and binding structure of the layers.
Journal ArticleDOI
Process effects on structural properties of TiO2 thin films by reactive sputtering
TL;DR: In this paper, the structural properties of the films were analyzed by x-ray diffractometry and the influence of total pressure, oxygen mole fraction in the mixture of Ar-O2, discharge current, and substrate temperature on structural properties were studied.