期刊
THIN SOLID FILMS
卷 636, 期 -, 页码 615-621出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.tsf.2017.07.010
关键词
Optical properties; Sputtering; Thin films; Lanthanum oxide; Lanthanum hydroxide; Swanepoel method
La2O3 thin films were successfully synthesized by r.f. magnetron sputtering technique. The effect of power, deposition time and substrate temperature on the formation and optical properties of the films was investigated. X-ray diffraction (XRD) studies revealed the formation of hexagonal phased La2O3 thin films. The influence of sputtering parameters on chemical composition and surface species was studied by X-ray photoelectron spectroscopy (XPS). The optical properties were investigated in the wavelength range of 200-1100 nm. The samples were modelled as a three-phase optical model. Optical constants were calculated at 2eV from classical dispersion model based on the single Lorentz for dielectric materials. (C) 2017 Elsevier B.V. All rights reserved.
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