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Title: Effects of substrates on the composition and microstructure of TiO2 thin films prepared by the LPD method
Authors: Yu, H
Yu, JG
Cheng, B
Ao, CH
Lee, SC 
Keywords: Composition
LPD Method
Issue Date: 2004
Publisher: Scientific.Net
Source: Key engineering materials, 2004, v. 280, p. 795-800 How to cite?
Journal: Key engineering materials 
Abstract: TiO2 thin films were prepared on soda lime glass, fused quartz and stainless steel substrates by liquid phase deposition (LPD) method from a (NH4)2TiF6 aqueous solution upon the addition of boric acid (H3BO3), and then calcined at 500oC for 2 h. The prepared films were characterized with X-ray diffraction (XRD), scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). It was found that the substrates obviously influenced the element composition and microstructure of TiO2 thin films. Except Ti, O and a small amount of F and N elements, which came from the precursor solution, some Si (or Fe) element in the thin films deposited on soda lime glass and quartz substrates (or on stainless steel substrate) was confirmed. The Si (or Fe) element in the thin films could be attributed to two sources. One was from the SiF6 2- ions (or FeF6 2- ions) formed by a reaction between the treatment solution and soda lime glass or quartz (or stainless steel) substrates. The other was attributed to the diffusion of Si (or Fe) from the surface of substrates into the TiO2 thin films after calcination at 500oC. The Si (or Fe) element in the TiO2 thin films could behave as a dopant and resulted in the formation of composite SiO2/TiO2 (or Fe2O3/TiO2) thin films on the substrates.
ISSN: 1013-9826
EISSN: 1662-9795
DOI: 10.4028/
Appears in Collections:Conference Paper

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