Recent Advances in Magnetron Sputtering for Functional Films and Coatings

A special issue of Coatings (ISSN 2079-6412). This special issue belongs to the section "Surface Characterization, Deposition and Modification".

Deadline for manuscript submissions: 25 April 2026 | Viewed by 718

Special Issue Editor

Department of Materials Science and Engineering, The Ångström Laboratory, Uppsala University, P. O. Box 35, SE-75103 Uppsala, Sweden
Interests: magnetron sputtering; TCO; diamond; HF-CVD; power semiconductor; chromogenic

Special Issue Information

Dear Colleagues,

Transparent and chromogenic coatings are key enablers in a wide range of applications, including smart windows, optoelectronic devices, energy-saving systems, and high-performance sensors. With recent advances in deposition techniques such as magnetron sputtering and chemical vapor deposition (CVD), functional films such as transparent conductive oxides (TCOs), diamond-based coatings, and chromogenic materials (thermochromic, electrochromic, and photochromic) have drawn increasing interest for their tunable electrical, optical, and thermal properties.

This Special Issue aims to bring together recent research efforts focused on the design, synthesis, and application of transparent and chromogenic thin films. Emphasis will be placed on the correlation between deposition parameters, material structure, and functional properties, with particular interest in systems enabling dynamic modulation and high-temperature durability.

Topics of interest include, but are not limited to, the following areas:

  • Magnetron sputtered TCOs and doped oxide coatings;
  • Diamond films synthesized by MPCVD or other techniques for optical/electronic functions;
  • Thermochromic, electrochromic, and photochromic oxide films;
  • Multilayer structures enabling active modulation of transmittance or conductivity;
  • Plasma-enhanced or hybrid deposition processes;
  • In-situ diagnostics and post-annealing strategies for phase tuning;
  • Durability, stability, and switching kinetics of chromogenic films;
  • Coatings for energy-efficient, high-transparency applications;
  • Device integration of smart optical films.

We welcome contributions addressing fundamental studies, process development, or application-focused results in these areas. Both experimental and theoretical works are encouraged.

Dr. Seohan Kim
Guest Editor

Manuscript Submission Information

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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 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

  • transparent conductive oxides
  • thermochromic thin film
  • photochromic thin film
  • magnetron sputtering
  • physical vapor deposition

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Published Papers (1 paper)

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Research

8 pages, 1338 KB  
Article
DC Sputtered Ultra-Thin Au Films and the Effect of Their Morphologies on Au-Catalyzed CIGS Films
by Filiz Keleş
Coatings 2025, 15(11), 1274; https://doi.org/10.3390/coatings15111274 - 3 Nov 2025
Viewed by 501
Abstract
Gold (Au) is one of the noble metals most used as a catalyst in the growth of one-dimensional nanostructures. Usually, an ultra-thin Au film is coated followed by thermal annealing to obtain Au nanoclusters. Although annealing temperature, duration and film thickness parameters have [...] Read more.
Gold (Au) is one of the noble metals most used as a catalyst in the growth of one-dimensional nanostructures. Usually, an ultra-thin Au film is coated followed by thermal annealing to obtain Au nanoclusters. Although annealing temperature, duration and film thickness parameters have been heavily studied, there are no studies on the sputter working gas pressure, which also greatly affects the film microstructure. In this study, low (5 mTorr) and high (15 mTorr) working gas pressures were examined in addition to Au film thicknesses of 2 nm, 5 nm and 8 nm. Additionally, copper indium gallium selenide (CIGS) films were deposited on Au films with different thicknesses and argon (Ar) gas pressures. It was confirmed from SEM and AFM images that the Au films undergo drastic morphology change from smooth to extremely porous film surfaces with increasing thickness regardless of gas pressure. However, the porosity of films is increased at higher growth pressure for each thickness. Specifically, the most porous film was obtained at a 5 nm thickness with 15 mTorr, and it was filled with nanomounds. Not surprisingly, the only apparent columnar-type formation was observed for CIGS deposition, which was carried out on the most porous film. It can be interpreted that Au nanomounds behave like catalysts on which the CIGS nanocolumns grow. Full article
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