Topical Collection "Feature Paper Collection in Thin Films"

A topical collection in Coatings (ISSN 2079-6412). This collection belongs to the section "Thin Films".

Editors

Dr. Torsten Brezesinski
E-Mail Website
Collection Editor
Institute of Nanotechnology, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, Bldg. 717, 76344 Eggenstein-Leopoldshafen, Germany
Interests: Li-ion batteries; Li-S batteries; all-solid-state batteries; pseudocapacitors; thin films; materials science; mesoporous materials; self-assembled nanostructures; structure-property relationships
Special Issues and Collections in MDPI journals
Dr. Ben Breitung
E-Mail Website
Collection Editor
Institute of Nanotechnology, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, Bldg. 640, 76344 Eggenstein-Leopoldshafen, Germany
Interests: high-entropy ceramics; printed electronics; batteries; electrochemistry; semiconductors; thin films; materials science; structure-property relationships

Topical Collection Information

Dear Colleagues,

Oxides and non-oxides in thin-film form are technologically important materials with a variety of applications in energy storage and conversion, sensing, electronics, mechanics, optics and biomedicine, resulting from unique combinations of properties. Inorganic, organic, and hybrid inorganic-organic materials can be produced with a range of structures, compositions, and thicknesses by physical and chemical deposition methods (e.g., atomic layer deposition, pulsed laser deposition, chemical vapor deposition, chemical solution deposition, etc.), with low-cost solution processing routes being usually more flexible in terms of chemistry. Apart from interfacial engineering and compositional design, nanoscale structuring at different length scales—through “top-down” and “bottom-up” approaches—has been shown to be effective in tailoring the properties of thin-film materials. However, the characterization becomes increasingly difficult with decreasing film thickness, and often the lack of structure-property relationship understanding is an impediment to applications. This “Feature Paper Collection” is dedicated to advanced thin film structures and devices, with special emphasis placed on their preparation, characterization, and application in the energy field.

Potential topics include (but are not limited to):

  • Novel oxide and non-oxide materials in thin-film form
  • Preparation by chemical and physical methods
  • Micro- and nanostructuring
  • Surface and interface engineering
  • Advanced characterization techniques
  • Structure–composition–property relationships
  • Application in electrochemical energy storage devices (e.g., as protective surface coating on anode/cathode materials for bulk-type batteries or as active component in thin-film batteries), catalysis, solar cells, sensors, data storage, etc.

Dr. Torsten Brezesinski
Dr. Ben Breitung
Collection Editors

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 papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the collection 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. Coatings is an international peer-reviewed open access monthly 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 1800 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.

Published Papers (2 papers)

2021

Article
Tuning the Electrical Properties of NiO Thin Films by Stoichiometry and Microstructure
Coatings 2021, 11(6), 697; https://doi.org/10.3390/coatings11060697 - 10 Jun 2021
Viewed by 480
Abstract
Here, the electrical properties of NiO thin films grown on glass and Al2O3 (0001) substrates have been investigated. It was found that the resistivity of NiO thin films strongly depends on oxygen stoichiometry. Nearly perfect stoichiometry yields extremely high resistivity. [...] Read more.
Here, the electrical properties of NiO thin films grown on glass and Al2O3 (0001) substrates have been investigated. It was found that the resistivity of NiO thin films strongly depends on oxygen stoichiometry. Nearly perfect stoichiometry yields extremely high resistivity. In contrast, off-stoichiometric thin films possess much lower resistivity, especially for oxygen-rich composition. A side-by-side comparison of energy loss near the edge structure spectra of Ni L3 edges between our NiO thin films and other theoretical spectra rules out the existence of Ni3+ in NiO thin films, which contradicts the traditional hypothesis. In addition, epitaxial NiO thin films grown on Al2O3 (0001) single crystal substrates exhibit much higher resistivity than those on glass substrates, even if they are deposited simultaneously. This feature indicates the microstructure dependence of electrical properties. Full article
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Figure 1

Article
Influence of the Physical Properties on the Antibacterial and Photocatalytic Behavior of Ag-Doped Indium Sulfide Film Deposited by Spray Pyrolysis
Coatings 2021, 11(4), 370; https://doi.org/10.3390/coatings11040370 - 24 Mar 2021
Viewed by 650
Abstract
Spray pyrolysis was used to deposit indium sulfide (In2S3) films, with or without silver doping. The films are polycrystalline, and the inclusion of Ag in the In2S3 structure leads to the formation of a solid solution, [...] Read more.
Spray pyrolysis was used to deposit indium sulfide (In2S3) films, with or without silver doping. The films are polycrystalline, and the inclusion of Ag in the In2S3 structure leads to the formation of a solid solution, with the crystallite size of the order of tens of nanometers. In2S3 films exhibit a semiconductive behavior, and the incorporation of Ag leads to an increase of the charge carrier concentration, enhancing the electrical conductivity of the films. The small polaron hopping mechanism, deduced by the fittings according to the double Jonscher variation, explains the evolution of the direct current (dc) conductivity at high temperature of the Ag-doped indium sulfide. From impedance spectroscopy, it was found that the doped film presents dielectric relaxation, and Nyquist diagrams indicate the importance of the grain and the grain boundaries’ contributions to the transport phenomena. The physical characteristics of the films have an influence on the photocatalytic performance, achieving photodegradation efficiency above 80% (85.5% in the case of Ag doping), and on the antibacterial activity. The obtained results indicate that indium sulfide films are good candidates for environmental and biological applications, confirming a multifunctional nature. Full article
Show Figures

Figure 1

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