Multifunctional Antireflective Coatings and Nanocomposites

A special issue of Coatings (ISSN 2079-6412).

Deadline for manuscript submissions: closed (31 December 2021) | Viewed by 4466

Special Issue Editor


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Guest Editor
Laboratory of Functional Dyes and Related Materials, National Institute for Research and Development in Chemistry and Petrochemistry, Bucharest, Romania
Interests: hybrid materials; functional dyes; daylight photocatalytic systems; photo- and thermochromic materials; sol–gel processes
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Special Issue Information

Dear Colleagues,

This Special Issue aims to present a collection of studies describing recent advances and the state of the art in the field of “Multifunctional Antireflective Coatings and Nanocomposites”. Therefore, to disseminate original, theoretical, and applied scientific research in the field, I would like to invite you to submit your work to be published in this Special Issue.

Multifunctional antireflective coatings and nanocomposites have attracted much interest due to the spectacular development of emerging technologies, solar cells being at the top of the hierarchy. However, regardless of the application domain, in addition to the main functionality of the antireflection effect and a high degree of transparency with omnidirectional efficiency over a broad range of the spectrum, other characteristics of film-forming materials have been developed at the same time, including surface wetting, a self-cleaning ability, mechanical or thermal resistance, adhesivity or scratch resistance, UV protection, and antiglare or anti-fogging properties.

Topics of interest for this Special Issue include, but are not limited to:

  • mono-, bi-, or multiayer nanostructured designs;
  • composite patterned structures;
  • hybrid coatings and composites;
  • fabrication methods (bottom-up and top-down approaches);
  • structure and morphology;
  • customized omnidirectional efficiency over a small or broad range of the spectrum; and
  • tailoring of other properties for special applications.

Dr. Valentin Raditoiu
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. 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

  • • organic–inorganic hybrids
  • • surface functionalization
  • • self-cleaning
  • • nanostructured coatings
  • • controlled wettability.

Published Papers (2 papers)

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Research

19 pages, 6177 KiB  
Article
Optical Behavior of Curcuminoid Hybrid Systems as Coatings Deposited on Polyester Fibers
by Florentina Monica Raduly, Valentin Rădiţoiu, Alina Rădiţoiu, Violeta Purcar, Georgiana Ispas, Adriana Nicoleta Frone, Raluca Augusta Gabor and Cristian-Andi Nicolae
Coatings 2022, 12(2), 271; https://doi.org/10.3390/coatings12020271 - 17 Feb 2022
Cited by 4 | Viewed by 1813
Abstract
The recent development of the “eco-friendly” current has brought to the attention of researchers natural dyes that are biodegradable, do not cause allergies and generally have anti-UV protection, and antioxidant and antibacterial properties. In this study, we aimed to obtain hybrid materials of [...] Read more.
The recent development of the “eco-friendly” current has brought to the attention of researchers natural dyes that are biodegradable, do not cause allergies and generally have anti-UV protection, and antioxidant and antibacterial properties. In this study, we aimed to obtain hybrid materials of the dye–host matrix type, by using the sol–gel process. The silica network was generated by tetraethylorthosilicates and modified with organic siloxane derivatives: phenyltriethoxysilane, 3-glycidoxypropyltriethoxysilane, dimethoxydimethylsilane and dimethoxydiphenylsilane. The nanocomposites obtained by embedding curcumin in siloxane matrices were deposited on polyester fabric and evaluated for their properties, relative to the type of organic network modifier used. Fabrics covered with curcuminoid hybrid systems provide a hydrophobic surface, have fluorescent properties and a UPF +50, and, therefore, they can be used in various fields where it is necessary for textiles to provide signaling, self-cleaning or protection properties against ultraviolet radiation. The coated textile materials have very good resistance properties after several repeated washing cycles, and maintain the original UV protection factor at high values even after washing or during rubbing tests. Full article
(This article belongs to the Special Issue Multifunctional Antireflective Coatings and Nanocomposites)
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12 pages, 2411 KiB  
Article
Fluorescent Silica Hybrid Film-Forming Materials Based on Salicylaldazine
by Alina Raditoiu, Valentin Raditoiu, Florentina Monica Raduly, Georgiana Cornelia Ispas, Violeta Purcar, Adriana Nicoleta Frone, Raluca Manea, Luminita Eugenia Wagner and Mihai Anastasescu
Coatings 2020, 10(12), 1255; https://doi.org/10.3390/coatings10121255 - 18 Dec 2020
Cited by 1 | Viewed by 2003
Abstract
Fluorescent film-forming materials were obtained by embedding salicylaldazine (SAA) in silica hybrids generated by sol–gel processes from different silane precursors in acid catalysis. Tuned local environments for the fluorophore were generated in the hosting network by modifying silica sols with organic groups through [...] Read more.
Fluorescent film-forming materials were obtained by embedding salicylaldazine (SAA) in silica hybrids generated by sol–gel processes from different silane precursors in acid catalysis. Tuned local environments for the fluorophore were generated in the hosting network by modifying silica sols with organic groups through the co-condensation of tetraethylortosilicate (TEOS) and different alkoxysilanes hydrolysis products. The photophysical properties of the luminescent hybrid films were studied in direct relationship with structural, textural, and surface properties and based on interactions between SAA species and the silica hosting network. Film-forming materials were studied in order to determine differences in absorption and fluorescence emission due to the environments around the fluorophore. The variations recorded in the fluorescence emission spectra of the hybrid films were related to interactions established between the fluorophore species and their sterically hindered surroundings of the host hybrid silica, where free molecular motions are restricted. The influence of the type and amount of network modifier and of the fluorophore loading on the transparency of the films and fluorescence intensity was also investigated. The study carried out led to the elucidation of the necessary conditions for obtaining luminescent film-forming materials with high luminescence intensity and transparency useful for the design of new light concentrators. Full article
(This article belongs to the Special Issue Multifunctional Antireflective Coatings and Nanocomposites)
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