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Coatings
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Optoelectronic Thin Film Materials Devices
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Optoelectronic Thin Film Materials Devices

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

Deadline for manuscript submissions: closed (17 November 2023) | Viewed by 3873

Special Issue Editor

Dr. Marcello Campajola

E-Mail Website
Guest Editor
Istituto Nazionale di Fisica Nucleare (INFN), Sezione di Napoli, Via Cinthia, 21 - 80126 Napoli, Italy
Interests: radiation detectors; optoelectronic devices; flexible electronics; particle physics
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

In recent years, thin-film materials have become a key element in the development of high-performance electronic and optoelectronic devices. Their significant employment is undoubtedly related to their suitability in the development of large areas, a high flexibility, lightweight and low-cost devices with high-quality electro-optical features.

We are pleased to invite you to contribute to this Special Issue entitled “Optoelectronic Thin Film Material Devices”. This Special Issue aims to cover all recent advancements in experimental and theoretical aspects related to inorganic, organic, hybrid-semiconductor, or halide perovskites thin-film materials and their employment in devices dedicated to optical sensing, photonics, radiation detection, energy harvesting and green energy.

Topics of interest for this issue include the design, fabrication, characterization, and testing of thin-film photodetectors, photovoltaic cells, and light-emitting devices.

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

  • Synthesis and characterization of thin-film materials;
  • Modeling of thin-film material properties (charge transport, radiation interaction);
  • Flexible thin-film devices design and characterization;
  • Optoelectronic thin film devices for innovative applications.

We look forward to receiving your contributions.

Dr. Marcello Campajola
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

  • thin-film materials
  • flexible optoelectronics
  • organic electronics
  • phototransistors
  • solar cells
  • light-emitting devices

Published Papers (2 papers)

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Research

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15 pages, 3800 KiB  
Article
Effect of Oxygen Content on the Properties of Sputtered TaOx Electrolyte Film in All-Solid-State Electrochromic Devices
by Jiuyong Li, Weiming Liu, Youxiu Wei and Yue Yan
Coatings 2022, 12(12), 1831; https://doi.org/10.3390/coatings12121831 - 26 Nov 2022
Cited by 2 | Viewed by 1408
Abstract
Tantalum oxide (TaOx) thin films are one of the commonly used solid electrolytes in inorganic all-solid-state electrochromic devices (ECDs). The chemical composition and microstructure of TaOx films have a crucial influence on its electron blocking and ion transport properties in [...] Read more.
Tantalum oxide (TaOx) thin films are one of the commonly used solid electrolytes in inorganic all-solid-state electrochromic devices (ECDs). The chemical composition and microstructure of TaOx films have a crucial influence on its electron blocking and ion transport properties in all-solid-state ECDs. In this work, various oxygen flux was used to deposit the TaOx films with different compositions and microstructures by pulsed direct current (p-DC) reactive magnetron sputtering. The structural properties, morphologies, chemical compositions, optical properties, electron blocking, and ionic conductive properties of the TaOx films were systematically investigated. The results show that in a certain range, the higher the oxygen flux, the stronger the ion transport ability of TaOx and the lower the electronic conductivity, which could be attributed to the loose structure and smaller number of oxygen vacancies of the films, respectively. Moreover, an all-solid-state ECD with the multilayer structure of glass/ITO/WO3/Li/TaOx/NiO/ITO was also fabricated by the magnetron sputtering method. The device exhibited excellent comprehensive electrochromic properties including high optical modulation, large coloring efficiency, fast response (especially bleaching process), and good cycle stability. Full article
(This article belongs to the Special Issue Optoelectronic Thin Film Materials Devices)
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Review

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9 pages, 2322 KiB  
Review
Water-Soluble Holographic Photopolymers for a Sustainable Future—A Review
by Emilia Mitkova Mihaylova
Coatings 2022, 12(11), 1765; https://doi.org/10.3390/coatings12111765 - 18 Nov 2022
Cited by 5 | Viewed by 1927
Abstract
Holographic photopolymers are subject to extensive studies in recent years because they are low-cost, easy-to-handle, self-processing materials, which have a number of advantages over more traditional holographic materials. The development of low-toxicity photopolymers that are environmentally friendly is highly desirable. The availability of [...] Read more.
Holographic photopolymers are subject to extensive studies in recent years because they are low-cost, easy-to-handle, self-processing materials, which have a number of advantages over more traditional holographic materials. The development of low-toxicity photopolymers that are environmentally friendly is highly desirable. The availability of low-toxicity photopolymers will permit the mass production of commercial holograms without harm to the environment. This paper reviews recent developments in low-toxicity water-soluble holographic photopolymers. A novel composition for a water-soluble, low-toxicity photopolymer is described. This new holographic photopolymer has 90% diffraction efficiency in the transmission mode of recording and 50% diffraction efficiency in the reflection mode of recording. This photopolymer has all the necessary holographic characteristics to make it very attractive for commercialisation. The optimised chemical composition of the holographic photopolymer for the production of pressure sensors is addressed. A novel and unique feature of this new material is its high sensitivity to pressure, which can be controlled by changing its composition. Several promising environmentally friendly optical materials are being developed for future holographic applications. The presented review of low-toxicity, water-soluble, holographic photopolymers is the first of its kind. Thus, the importance of the review is twofold—it helps contribute to the development of low-toxicity holographic photopolymers, and it provides insight and new ideas for the development of water-soluble photopolymers for other applications. Full article
(This article belongs to the Special Issue Optoelectronic Thin Film Materials Devices)
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