The Influence of Annealing Temperature on the Structural and Optical Properties of ZrO<sub>2</sub> Thin Films and How Affects the Hydrophilicity
Zirconium oxide (ZrO<sub>2</sub>) thin films were prepared by the sol-gel dip coating technique, in combination with annealing at different temperatures in air atmosphere, with the final goal of studying the water wettability of the surface. The annealing effects on the structural and op...
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doaj-55751b14665f4ac496eccfbd5ee66ca42020-11-25T03:17:19ZengMDPI AGCrystals2073-43522020-05-011045445410.3390/cryst10060454The Influence of Annealing Temperature on the Structural and Optical Properties of ZrO<sub>2</sub> Thin Films and How Affects the HydrophilicityA. Méndez-López0O. Zelaya-Ángel1M. Toledano-Ayala2I. Torres-Pacheco3J.F. Pérez-Robles4Y.J. Acosta-Silva5División de Investigación y Posgrado, Facultad de Ingeniería, Universidad Autónoma de Querétaro (UAQ), Centro Universitario, Querétaro, Qro. 76010, MexicoDivisión de Investigación y Posgrado, Facultad de Ingeniería, Universidad Autónoma de Querétaro (UAQ), Centro Universitario, Querétaro, Qro. 76010, MexicoDivisión de Investigación y Posgrado, Facultad de Ingeniería, Universidad Autónoma de Querétaro (UAQ), Centro Universitario, Querétaro, Qro. 76010, MexicoDivisión de Investigación y Posgrado, Facultad de Ingeniería, Universidad Autónoma de Querétaro (UAQ), Centro Universitario, Querétaro, Qro. 76010, MexicoCentro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Unidad Querétaro, A.P. 1-798, Querétaro, Qro. 76230, MexicoDivisión de Investigación y Posgrado, Facultad de Ingeniería, Universidad Autónoma de Querétaro (UAQ), Centro Universitario, Querétaro, Qro. 76010, MexicoZirconium oxide (ZrO<sub>2</sub>) thin films were prepared by the sol-gel dip coating technique, in combination with annealing at different temperatures in air atmosphere, with the final goal of studying the water wettability of the surface. The annealing effects on the structural and optical properties of the ZrO<sub>2</sub> films were investigated to check the characteristics of the material. X-ray diffraction (XRD) patterns of ZrO<sub>2</sub> annealed at 450 °C and 550 °C show the formation of tetragonal phase, with layers constituted by nanoparticles with average particle size of 21 nm and 25 nm, respectively. Fourier-transform infrared spectroscopy (FT-IR) spectra revealed the presence of vibrational modes associated to ZrO<sub>2</sub>. Photoluminescence (PL) and ultraviolet-visible spectroscopy (UV–Vis) spectroscopy was used for optical properties. All deposited ZrO<sub>2</sub> thin films presented a high optical transparency, with an average transmittance above 70% in the visible range (400–700 nm). The hydrophilic properties of ZrO<sub>2</sub> films were characterized by means of the measurements of the contact angle. When the sample was annealed at 550 °C, the hydrophilicity reached the best behavior, which was explained as an effect of the structural and morphological change of the films.https://www.mdpi.com/2073-4352/10/6/454ZrO<sub>2</sub> thin filmshydrophilicityannealing temperaturesol-gelceramic thin films |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
A. Méndez-López O. Zelaya-Ángel M. Toledano-Ayala I. Torres-Pacheco J.F. Pérez-Robles Y.J. Acosta-Silva |
spellingShingle |
A. Méndez-López O. Zelaya-Ángel M. Toledano-Ayala I. Torres-Pacheco J.F. Pérez-Robles Y.J. Acosta-Silva The Influence of Annealing Temperature on the Structural and Optical Properties of ZrO<sub>2</sub> Thin Films and How Affects the Hydrophilicity Crystals ZrO<sub>2</sub> thin films hydrophilicity annealing temperature sol-gel ceramic thin films |
author_facet |
A. Méndez-López O. Zelaya-Ángel M. Toledano-Ayala I. Torres-Pacheco J.F. Pérez-Robles Y.J. Acosta-Silva |
author_sort |
A. Méndez-López |
title |
The Influence of Annealing Temperature on the Structural and Optical Properties of ZrO<sub>2</sub> Thin Films and How Affects the Hydrophilicity |
title_short |
The Influence of Annealing Temperature on the Structural and Optical Properties of ZrO<sub>2</sub> Thin Films and How Affects the Hydrophilicity |
title_full |
The Influence of Annealing Temperature on the Structural and Optical Properties of ZrO<sub>2</sub> Thin Films and How Affects the Hydrophilicity |
title_fullStr |
The Influence of Annealing Temperature on the Structural and Optical Properties of ZrO<sub>2</sub> Thin Films and How Affects the Hydrophilicity |
title_full_unstemmed |
The Influence of Annealing Temperature on the Structural and Optical Properties of ZrO<sub>2</sub> Thin Films and How Affects the Hydrophilicity |
title_sort |
influence of annealing temperature on the structural and optical properties of zro<sub>2</sub> thin films and how affects the hydrophilicity |
publisher |
MDPI AG |
series |
Crystals |
issn |
2073-4352 |
publishDate |
2020-05-01 |
description |
Zirconium oxide (ZrO<sub>2</sub>) thin films were prepared by the sol-gel dip coating technique, in combination with annealing at different temperatures in air atmosphere, with the final goal of studying the water wettability of the surface. The annealing effects on the structural and optical properties of the ZrO<sub>2</sub> films were investigated to check the characteristics of the material. X-ray diffraction (XRD) patterns of ZrO<sub>2</sub> annealed at 450 °C and 550 °C show the formation of tetragonal phase, with layers constituted by nanoparticles with average particle size of 21 nm and 25 nm, respectively. Fourier-transform infrared spectroscopy (FT-IR) spectra revealed the presence of vibrational modes associated to ZrO<sub>2</sub>. Photoluminescence (PL) and ultraviolet-visible spectroscopy (UV–Vis) spectroscopy was used for optical properties. All deposited ZrO<sub>2</sub> thin films presented a high optical transparency, with an average transmittance above 70% in the visible range (400–700 nm). The hydrophilic properties of ZrO<sub>2</sub> films were characterized by means of the measurements of the contact angle. When the sample was annealed at 550 °C, the hydrophilicity reached the best behavior, which was explained as an effect of the structural and morphological change of the films. |
topic |
ZrO<sub>2</sub> thin films hydrophilicity annealing temperature sol-gel ceramic thin films |
url |
https://www.mdpi.com/2073-4352/10/6/454 |
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