Abstract
The effect of the condensation temperature and ion-beam treatment alternating with high-frequency magnetron sputtering on the structure and optical properties of thin titanium-oxide films is studied. The films have homogeneous compositions and granular structures; ion-beam treatment changes the grain shape from elongated to rounded. The X-ray diffraction studies show that the phase composition of the films is represented by two modifications of titanium oxide: rutile and anatase. It is found that the increase in the condensation temperature and the intensity of ion-beam treatment influences the film phase composition and their refractive indices. At a low condensation temperature, the dominant phase is rutile; as the condensation temperature increases, the anatase phase forms. An increase in the current density of ion-beam treatment leads to a decrease in the anatase fraction. The decrease in the refractive index of the titanium-oxide films with an increase in the condensation temperature is related to the formation of the anatase phase. Ion-beam treatment also decreases the band-gap width from 3.40 to 3.30 eV.
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Gabova, A.K., Krylov, P.N., Zakirova, R.M. et al. Effect of Ion-Beam Treatment on the Structure and Properties of Titanium-Oxide Films. J. Surf. Investig. 16, 226–232 (2022). https://doi.org/10.1134/S1027451022030090
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DOI: https://doi.org/10.1134/S1027451022030090