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Coatings
Special Issues
Developments in Optical Coatings and Thin Films
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Developments in Optical Coatings and Thin Films

A special issue of Coatings (ISSN 2079-6412). This special issue belongs to the section "Thin Films".

Deadline for manuscript submissions: 30 April 2026 | Viewed by 1145

Special Issue Editors

Dr. Margarita García-Hernández

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Guest Editor
Instituto Politécnico Nacional–UPIIH, Carretera Pachuca Actopan Km 1+500, San Agustín Tlaxiaca Hidalgo 42162, Mexico
Interests: sol–gel and hybrid coatings for optical, photonic, and optoelectronic applications; techniques for coating preparation; characterization of coating properties (biological performances, mechanical behaviour, optical properties, etc.); application of multifunctional coatings
Special Issues, Collections and Topics in MDPI journals
Dr. Angel Morales Ramirez

E-Mail Website
Guest Editor
Instituto Politécnico Nacional—ESIQIE, Av. Luis Enrique Erro, S/N, UPALM, México City 07738, México
Interests: thin films; luminescent films; antibacterial films; films for corrosion protection; sol–gel films
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

It is well known that optoelectronic applications have grown exponentially in recent decades, which has caused the need for systems with increasingly specific properties that satisfy the increasing specificity of various devices. Coatings and thin films are now required in imaging systems, both in medical systems (MRI, X-rays, computed tomography, nuclear medicine, ultrasound, magnetic resonance, etc.) and in the following systems: TV, cell phones, PCs, etc. Furthermore, new applications have appeared in the field of security systems, biological systems, intelligent thermal barriers, astronomy, etc.

We are thrilled to extend our invitation to you, urging your valuable contributions to this Special Issue. We welcome original research and review articles that expand fundamental knowledge and explore the vast technological applications for luminescent coatings and thin films.

This Special Issue aims to disseminate innovative research that allows the analysis of the effect between synthesis, chemical composition, deposition methods, theorical studies, computational simulations, or industrial applications in luminescent coatings and thin films.

In this Special Issue, original research articles and reviews are welcome. Research areas may include (but are not limited to) the following:

  • Theoretical and experimental research for luminescent coatings and thin films;
  • Recent advances in luminescent coatings and thin films;
  • A new generation of luminescent coatings and thin films;
  • Industrial applications;
  • Deposition techniques for luminescent coatings and thin films;
  • Morphological, structural, and mechanical properties of luminescent coatings and thin films; 
  • Ceramics films;
  • Hybrid films;
  • Polymeric films.

We look forward to receiving your contributions.

Acknowledgements

Dr. María Luz Carrera Jota

Dr. Margarita García-Hernández
Dr. Angel Morales Ramirez
Guest 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 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. 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

  • luminescent coatings and thin films
  • transparent films
  • coating on optical fibers
  • luminescent films
  • rare-earth luminescent films
  • polymeric luminescent films

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Further information on MDPI's Special Issue policies can be found here.

Published Papers (2 papers)

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Research

15 pages, 778 KiB  
Article
Research on a Broadband Optical Monitoring Method with an Improved Error Compensation Mechanism
by Ming Ji, Yiming Guo, Yuhui Pei, Zhenjiang Qin, Weiji Liu and Chitin Hon
Coatings 2025, 15(5), 551; https://doi.org/10.3390/coatings15050551 - 5 May 2025
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Abstract
In modern optical coating production, optical monitoring technology is an indispensable component. The traditional monochromatic monitoring technology used in current commercial and research institutions is usually only for a specific wavelength and cannot fully represent the characteristics of the film in the entire [...] Read more.
In modern optical coating production, optical monitoring technology is an indispensable component. The traditional monochromatic monitoring technology used in current commercial and research institutions is usually only for a specific wavelength and cannot fully represent the characteristics of the film in the entire spectral range. Moreover, for non-quarter-wave coating systems (such as multilayer or complex coating systems), a thickness change in a single coating may have a significant effect on the performance of the entire coating system. In this case, it may be difficult to use monochromatic monitoring to accurately determine the thickness of each layer, resulting in reduced monitoring accuracy. At present, although broadband optical monitoring can be monitored over a wide wavelength range, the stop-plating time may be misjudged due to error accumulation during the coating process. To solve these problems, a broadband optical monitoring method with an improved error compensation mechanism is proposed in this paper. An optimal function that combines the absolute error and shape similarity of the transmission spectrum is designed, and the transmission spectrum is optimized by the limited random search method. In addition, a breakpoint algorithm based on parabolic error curve prediction is designed for the first time in this paper, which avoids the problem of excessive deposition thickness encountered by traditional broadband monitoring methods in the automatic coating processes. To verify the effectiveness of the proposed method, a set of hardware verification platforms based on broadband optical monitoring is designed in this paper, and a 30-layer shortwave-pass filter is constructed as an example. Compared with the traditional time monitoring method (CTMM), the proposed broadband optical monitoring method (PBMM) has significant advantages in terms of the matching degree between the transmission spectrum and the target spectrum, as well as the average transmittance in the low-pass band. In summary, the broadband optical monitoring method with an improved error compensation mechanism proposed in this paper provides an effective solution for high-precision optical coating production and has high practical application value and research significance. Full article
(This article belongs to the Special Issue Developments in Optical Coatings and Thin Films)
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16 pages, 5540 KiB  
Article
Dual Z-Scheme MoS2/g-C3N4/Bi2O3 Composite Coating on Carbon Fiber with Enhanced Photocatalytic Performance
by Jiantao Niu, Jiaqi Pan, Bin Zhou and Chaorong Li
Coatings 2025, 15(4), 447; https://doi.org/10.3390/coatings15040447 - 10 Apr 2025
Viewed by 398
Abstract
A double-layer core–shell photocatalytic coating was engineered on carbon fibers (CFb) derived from bamboo pulp precursors, employing a sequential process involving seed pre-loading, solvothermal treatment, and impregnation. XRD, SEM, and SEM-EDS analyses revealed that g-C3N4 and Bi2O3 [...] Read more.
A double-layer core–shell photocatalytic coating was engineered on carbon fibers (CFb) derived from bamboo pulp precursors, employing a sequential process involving seed pre-loading, solvothermal treatment, and impregnation. XRD, SEM, and SEM-EDS analyses revealed that g-C3N4 and Bi2O3 nanosheets were co-assembled on the carbon fiber skeleton, and 50 nm MoS2 particles were successfully loaded, resulting in the fabrication of MoS2/g-C3N4/Bi2O3/CFb photocatalytic fibers. UV–vis spectroscopy, transient photocurrent response, and EIS tests demonstrated that the introduction of narrow-bandgap visible-light photocatalysts (g-C3N4 and MoS2) enhanced light absorption and improved the separation and migration efficiency of photogenerated electron hole pairs. Photocatalytic degradation experiments of MB showed that MoS2/g-C3N4/Bi2O3/CFb significantly outperformed g-C3N4/Bi2O3/CFb and Bi2O3/CFb, achieving a degradation efficiency of 92% within 60 min. Band structure calculations and analysis confirmed the formation of Z-scheme heterojunctions between g-C3N4 and Bi2O3, as well as between MoS2 and Bi2O3. This dual Z-scheme heterojunction endowed MoS2/g-C3N4/Bi2O3/CFb with enhanced redox capabilities, providing a novel strategy for developing efficient photocatalytic materials. Full article
(This article belongs to the Special Issue Developments in Optical Coatings and Thin Films)
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