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Advanced Optical Materials: Design, Fabrication, Measurement and Application
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Advanced Optical Materials: Design, Fabrication, Measurement and Application

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Optical and Photonic Materials".

Deadline for manuscript submissions: closed (20 November 2023) | Viewed by 3552

Special Issue Editor

Dr. Shuliang Dou

E-Mail Website
Guest Editor
Center for Composite Materials and Structure, Science and Technology on Advanced Composites in Special Environment Laboratory, Harbin Institute of Technology, Harbin 150080, China
Interests: thermochromic; metamaterials; smart window; smart thermal regulation; optical limiter

Special Issue Information

Dear Colleagues,

As the climate problem of global warming has received more and more attention, new optical materials represented by radiative cooling and smart windows have flourished, and the regulation of sunlight and infrared radiation by adjusting the spectral characteristics of materials in different bands has gradually become intensely researched. Developing advanced optical materials and focusing on their progress in energy regulation enables the realization of energy-saving technologies without energy consumption.

The regulation of advanced optical materials depends on their intrinsic optical properties and special micro-nano structures. With the rapid development of nanophotonics, the influence of subwavelength structures on the spectral response characteristics of optical materials is becoming clearer, which can allow the customized design of material performance according to different application scenarios. Related studies are developing rapidly in the fields of radiative cooling, smart windows, adaptive camouflage, anti-counterfeiting, and sensing. Thus, this Special Issue aims to compile recent advances in advanced optical materials. Topics include the design, preparation, characterization, and application of advanced optical materials.

The scope of the Special Issue includes but is not limited to:

  • the design, optimization, and preparation of advanced optical materials;
  • surface functionalization with targeted applications;
  • radiative cooling;
  • smart windows;
  • anti-counterfeiting；
  • nanosensors;
  • catalysis;
  • electronic devices;
  • sterilization

Dr. Shuliang Dou
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

  • optical materials
  • smart windows
  • radiative cooling
  • nanosensor
  • adaptive camouflage
  • anti-counterfeiting
  • catalysis

Published Papers (3 papers)

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Research

19 pages, 2244 KiB  
Article
Comparison of Measured and Calculated Porosity Parameters of Woven Fabrics to Results Obtained with Image Analysis
by Živa Zupin, Veronika Štampfl, Tanja Nuša Kočevar and Helena Gabrijelčič Tomc
Materials 2024, 17(4), 783; https://doi.org/10.3390/ma17040783 - 6 Feb 2024
Viewed by 899
Abstract
Porosity, the measure of the open spaces within a fabric structure, is a decisive factor in the performance of textiles. It influences breathability, permeability to liquids or gases, and suitability for various industries such as apparel, medical, and technical textiles. This study compares [...] Read more.
Porosity, the measure of the open spaces within a fabric structure, is a decisive factor in the performance of textiles. It influences breathability, permeability to liquids or gases, and suitability for various industries such as apparel, medical, and technical textiles. This study compares classical porosity calculation methods with non-destructive image analysis for 24 woven fabric samples that differ in density and weave pattern. Factors such as fabric density, weave pattern, illumination conditions, magnification, and the influence of the Otsu and Yen threshold algorithms were considered. The multifactor ANOVA statistical analysis shows that fabric density and weave pattern significantly influence porosity, with illumination playing an important role, while the threshold algorithm has a minor influence. A strong correlation is found between the actual fabric porosity and the results of the image analysis, except for double-sided illumination (reflective and transmissive), where the correlation is weakest. This comprehensive investigation provides valuable insights into the reliability of different porosity assessment approaches, which is essential for applications in various textile industries. Full article
(This article belongs to the Special Issue Advanced Optical Materials: Design, Fabrication, Measurement and Application)
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11 pages, 5190 KiB  
Article
Effect of CrF3 Addition on Photoluminescence Properties of Lead-Free Cs4SnBr6−xFx Zero-Dimensional Perovskite
by Jianni Chen, Haixia Wu, Yaqian Huang, Jisheng Xu, Xinye Lu, Wendi Zhou, Jie Song and Rui Huang
Materials 2023, 16(18), 6309; https://doi.org/10.3390/ma16186309 - 20 Sep 2023
Viewed by 991
Abstract
Zero-dimensional (0D) tin halide perovskites, characterized by their broadband and adjustable emissions, high photoluminescence quantum yield, and absence of self-absorption, are crucial for the fabrication of high-efficiency optoelectronic devices, such as LEDs, solar cells, and sensors. Despite these attributes, boosting their emission efficiency [...] Read more.
Zero-dimensional (0D) tin halide perovskites, characterized by their broadband and adjustable emissions, high photoluminescence quantum yield, and absence of self-absorption, are crucial for the fabrication of high-efficiency optoelectronic devices, such as LEDs, solar cells, and sensors. Despite these attributes, boosting their emission efficiency and stability poses a significant challenge. In this work, Cr3+-doped Cs4SnBr6−xFx perovskites were synthesized using a water-assisted wet ball-milling method. The effect of CrF3 addition on photoluminescence properties of Cs4SnBr6−xFx Perovskites was investigated. We found that Cr3+-doped Cs4SnBr6−xFx Perovskites exhibit a broad emission band, a substantial Stokes shift, and an efficient green light emission centered at about 525 nm at ambient temperature. The derived photoluminescence quantum yield amounted to as high as 56.3%. In addition, these Cr3+-doped Cs4SnBr6−xFx perovskites outperform their undoped counterparts in terms of thermal stability. Through a comprehensive analysis of photoluminescence measurements, our findings suggested that the elevated photoluminescence quantum yield can be attributed to the enhanced exciton binding energy of self-trapped excitons (STEs) and the suitable electron−phonon coupling resulting from the substantial distortion of [SnBr6]4− octahedra instigated by the addition of CrF3. Full article
(This article belongs to the Special Issue Advanced Optical Materials: Design, Fabrication, Measurement and Application)
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10 pages, 4476 KiB  
Article
Effects of Film Thickness on the Residual Stress of Vanadium Dioxide Thin Films Grown by Magnetron Sputtering
by Yuemin Wang, Xingang Li, Xiangqiao Yan, Shuliang Dou, Yao Li and Lei Wang
Materials 2023, 16(14), 5093; https://doi.org/10.3390/ma16145093 - 19 Jul 2023
Cited by 2 | Viewed by 1254
Abstract
Vanadium dioxide (VO2) thin films of different thicknesses were prepared by regulating the deposition time (2, 2.5, 3, and 3.5 h). The impact of deposition time on the microstructure, surface morphology, and cross-section morphology was investigated. The results showed that the [...] Read more.
Vanadium dioxide (VO2) thin films of different thicknesses were prepared by regulating the deposition time (2, 2.5, 3, and 3.5 h). The impact of deposition time on the microstructure, surface morphology, and cross-section morphology was investigated. The results showed that the grain size increased with the film thickness. Meanwhile, the influence of film thickness on the residual stress was evaluated by X-ray diffraction. The phenomenon of “compressive-to-tensile stress transition” was illustrated as the thickness increased. The change of dominant mechanism for residual stress was used for explaining this situation. First, the composition of residual stress indicates that growth stress play a key role. Then, the effect of “atomic shot peening” can be used to explain the compressive stress. Lastly, the increased grain size, lower grain boundary density, and “tight effect” in the progress of film growth cause tensile stress. Full article
(This article belongs to the Special Issue Advanced Optical Materials: Design, Fabrication, Measurement and Application)
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