Thickness and structure change of titanium (IV) oxide thin films synthesized by the sol–gel spin coating method

Aneta Lewkowicz; Anna Synak; Beata Grobelna; Piotr Bojarski; Robert Bogdanowicz; Jakub Karczewski; Karol Szczodrowski; Mirosław Behrendt

Thickness and structure change of titanium (IV) oxide thin films synthesized by the sol–gel spin coating method

Abstract

Titanium dioxide is a well-known material in nanotechnology, while it provides new opportunities due to its interesting properties, for example, as a semiconductor with a quite significant forbidden band gap energy of 3.2 eV. In this study, thin films of titanium dioxide (TiO2) were synthesized in amorphous and crystallographic systems using the sol–gel process. Atomic Force Microscopy (AFM), Raman spectroscopy and X-ray diffraction (XRD) techniques were applied to obtain structural characteristics of the prepared films. We estimated that TiO2 thin films crystallize in anatase phase between temperatures 380 °C and 700 °C, and into anatase–rutile phase at 650 °C, while rutile phase exists alone above 800 °C. The changes in porosity of materials in relation to temperature were calculated as well. The refractive index of titanium dioxide thin films from ellipsometric measurements is also provided.

Authors (8)

Aneta Lewkowicz
- . .
Anna Synak
- Uniwersytet Gdański .
Beata Grobelna
- Uniwersytet Gdański .
Piotr Bojarski
- Uniwersytet Gdański .
Robert Bogdanowicz dr hab. inż.
Jakub Karczewski dr hab. inż.
Karol Szczodrowski
- . .
Mirosław Behrendt
- . .

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Category:: Articles
Type:: artykuł w czasopiśmie wyróżnionym w JCR
Published in:: OPTICAL MATERIALS no. 36, edition 10, pages 1739 - 1744,
ISSN: 0925-3467
Language:: English
Publication year:: 2014
Bibliographic description:: Lewkowicz A., Synak A., Grobelna B., Bojarski P., Bogdanowicz R., Karczewski J., Szczodrowski K., Behrendt M.: Thickness and structure change of titanium (IV) oxide thin films synthesized by the sol–gel spin coating method// OPTICAL MATERIALS. -Vol. 36, iss. 10 (2014), s.1739-1744
Verified by:: Gdańsk University of Technology