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Oxide-Based Thin Films and Layers: From Preparation to Applications
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Oxide-Based Thin Films and Layers: From Preparation to Applications

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Thin Films and Interfaces".

Deadline for manuscript submissions: closed (31 August 2021) | Viewed by 6917

Special Issue Editor

Prof. Dr. Ewa Popko

E-Mail Website
Guest Editor
Department of Quantum Technologies, Wroclaw University of Science Technology, 50-370 Wroclaw, Poland
Interests: physics of semiconductors and semiconductor devices; optoelectronics; photovoltaics; structural, optical, and electrical characterization techniques of semiconductors and semiconductor devices

Special Issue Information

Dear Colleagues,

This Special Issue on ‘Oxide-Based Thin Films and Layers: From Preparations to Applications’ brings together scientists working at universities, research institutes, laboratories, and various industries to discuss state-of-the-art research on this very hot topic. Oxides belong to the class of the materials exhibiting the widest tunability of physical properties. Applications of oxides attract increasing interest. Recent progress in nanoscale oxide thin-film growth technology has led to the tremendous extension of their standard applications, such as transparent electronics, power electronics, optoelectronics, photovoltaics or energy storage by magnetoelectronics, photonics, spintronics, thermoelectrics, piezoelectrics, power harvesting, hydrogen storage, and many others. However, fabrication of nanostructured thin-film oxides on demand is still a challenge. This obstacle is closely related to the understanding of the novel properties that arise due to the nature of the nanoscale oxides. Fabrication of the oxides requires thorough studies on the optimization of technological conditions, such as preparation of suitable substrates and surfaces, precise control of growth, estimation of structural properties, understanding of the role of defects and interfaces, and so on. All of them are necessary preconditions for successful implementation of the novel nanostructured thin-film oxide devices tailored for specific applications. The main goal of this Special Issue is to deliver the corresponding platform in respect of synthesis, properties, and applications of oxide-based thin films and layers, including these newly emerging nanoscale oxides.

This Special Issue will present the latest results of research on the basic properties of thin films and layers of oxides, their characterization, manufacturing technology, and applications. Therefore, contributions from all researchers working on these issues are welcome.

The Special Issue will cover but not be limited to the following topics:

  • Transparent conducting oxides;
  • Complex oxides—spinel and perovskite oxides;
  • Transition-metal oxides;
  • Magnetic oxides;
  • Thermoelectric oxides;
  • Nanostructured oxides;
  • Semiconductor oxides;
  • Characterization techniques of thin-film oxides;
  • Growth methods of thin-film oxides;
  • Application of thin film oxides.

Prof. Dr. Ewa Popko
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Materials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Oxides’ interfaces
  • Oxides in energy technologies
  • Oxides in optical media
  • Oxides in electronics
  • Oxides in photovoltaics
  • Oxides: synthesis strategies and characterization techniques
  • Growth techniques of oxide thin layers
  • Oxides—applications

Published Papers (3 papers)

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Research

12 pages, 2918 KiB  
Article
Muntingia calabura Leaves Mediated Green Synthesis of CuO Nanorods: Exploiting Phytochemicals for Unique Morphology
by Vidhya Selvanathan, Mohammod Aminuzzaman, Lai-Hock Tey, Syaza Amira Razali, Khaled Althubeiti, Hend Ibraheem Alkhammash, Samar Kumar Guha, Sayaka Ogawa, Akira Watanabe, Md. Shahiduzzaman and Md. Akhtaruzzaman
Materials 2021, 14(21), 6379; https://doi.org/10.3390/ma14216379 - 25 Oct 2021
Cited by 18 | Viewed by 2666
Abstract
In this study, phytochemical assisted nanoparticle synthesis was performed using Muntingia calabura leaf extracts to produce copper oxide nanoparticles (CuO NPs) with interesting morphology. Scanning electron microscope (SEM) and transmission electron microscope (TEM) analysis of the biosynthesized CuO NPs reveal formation of distinct, [...] Read more.
In this study, phytochemical assisted nanoparticle synthesis was performed using Muntingia calabura leaf extracts to produce copper oxide nanoparticles (CuO NPs) with interesting morphology. Scanning electron microscope (SEM) and transmission electron microscope (TEM) analysis of the biosynthesized CuO NPs reveal formation of distinct, homogeneous, and uniform sized CuO nanorods structure with thickness and length of around 23 nm and 79 nm, respectively. Based on Fourier-transform infrared (FTIR) analysis, the unique combinations of secondary metabolites such as flavonoid and polyphenols in the plant extract are deduced to be effective capping agents to produce nanoparticles with unique morphologies similar to conventional chemical synthesis. X-ray diffraction (XRD) analysis verified the monoclinical, crystalline structure of the CuO NPs. The phase purity and chemical identity of the product was consolidated via X-Ray photoelectron spectroscopy (XPS) and Raman spectroscopic data which indicate the formation of a single phase CuO without the presence of other impurities. The direct and indirect optical band gap energies of the CuO nanorods were recorded to be 3.65 eV and 1.42 eV. Full article
(This article belongs to the Special Issue Oxide-Based Thin Films and Layers: From Preparation to Applications)
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16 pages, 50125 KiB  
Article
The Influence of Annealing on the Optical Properties and Microstructure Recrystallization of the TiO2 Layers Produced by Means of the E-BEAM Technique
by Katarzyna Jurek, Robert Szczesny, Marek Trzcinski, Arkadiusz Ciesielski, Jolanta Borysiuk and Lukasz Skowronski
Materials 2021, 14(19), 5863; https://doi.org/10.3390/ma14195863 - 07 Oct 2021
Cited by 2 | Viewed by 1485
Abstract
Titanium dioxide films, about 200 nm in thickness, were deposited using the e-BEAM technique at room temperature and at 227 °C (500K) and then annealed in UHV conditions (as well as in the presence of oxygen (at 850 °C). The fabricated dielectric films [...] Read more.
Titanium dioxide films, about 200 nm in thickness, were deposited using the e-BEAM technique at room temperature and at 227 °C (500K) and then annealed in UHV conditions (as well as in the presence of oxygen (at 850 °C). The fabricated dielectric films were examined using X-ray powder diffraction, Raman spectroscopy, X-ray photoelectron spectroscopy, atomic force microscopy, scanning electron microscopy, transmission electron microscopy, and spectroscopic ellipsometry. The applied experimental techniques allowed us to characterize the phase composition and the phase transformation of the fabricated TiO2 coatings. The films produced at room temperature are amorphous but after annealing consist of anatase crystallites. The layers fabricated at 227 °C contain both anatase and rutile phases. In this case the anatase crystallites are accumulated near the substrate interface whilst the rutile crystallites were formed closer to the surface of the TiO2 film. It should be emphasized that these two phases of TiO2 are distinctly separated from each other. Full article
(This article belongs to the Special Issue Oxide-Based Thin Films and Layers: From Preparation to Applications)
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12 pages, 9463 KiB  
Article
Preparation of ZnO Nanoparticle/Acrylic Resin Superhydrophobic Coating via Blending Method and Its Wear Resistance and Antibacterial Properties
by Changquan Li, Chen Wang, Ziang Li, Zhenjun Cao, Yu Xie, Mingshan Xue and Jinsheng Zhao
Materials 2021, 14(14), 3775; https://doi.org/10.3390/ma14143775 - 06 Jul 2021
Cited by 10 | Viewed by 2200
Abstract
Herein, a facile method for the preparation of an acrylic resin-based superhydrophobic coating is provided. Firstly, ZnO nanoparticles were modified with silane to obtain hydrophobic ZnO, which was then homogeneously blended with acrylic resin. Subsequently, the mixture was sprayed on an aluminum sheet [...] Read more.
Herein, a facile method for the preparation of an acrylic resin-based superhydrophobic coating is provided. Firstly, ZnO nanoparticles were modified with silane to obtain hydrophobic ZnO, which was then homogeneously blended with acrylic resin. Subsequently, the mixture was sprayed on an aluminum sheet to form a cured coating. The surface composition and morphology of the coating were characterized using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM). The hydrophobicity, wear resistance, and antibacterial properties of the prepared samples were tested. The optimized hydrophobicity was achieved with 10 wt% modification agent and resin-to-ZnO mass ratio of 1:4, exhibiting contact and sliding angles of 168.11° and 7.2°, respectively. Wear resistance was insufficient with a low resin content, while it grew with the increase in the resin content. However, when the resin content was excessively high, the hydrophobicity was reduced because the resin could wrap the modified ZnO nanoparticles and decrease the number of hydrophobic groups on the surface. Compared with the pure acrylic resin coating, the ZnO nanoparticle/acrylic resin superhydrophobic coating demonstrated a significant enhancement in the antibacterial properties. Full article
(This article belongs to the Special Issue Oxide-Based Thin Films and Layers: From Preparation to Applications)
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