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Recent Developments in the Application of Nanomaterials in Photonics

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Nanotechnology and Applied Nanosciences".

Deadline for manuscript submissions: closed (20 November 2023) | Viewed by 1874

Special Issue Editor


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Guest Editor
1. Physics Department, Sciences Faculty of Tunis, University of Tunis El Manar, 2092 Tunis, Tunisia
2. Physics Department, College of Sciences, University of Bisha, P.O. Box 551, Bisha 61922, Saudi Arabia
Interests: nanostructures; photonics; energy storage; dielectric properties

Special Issue Information

Dear Colleagues,

Nanomaterials are known to have unique size-dependent optical properties. Due to the quantum confinement effect, nanomaterials have demonstrated the potential to bring significant progress with their application in photodetectors, LEDs, lasers, displays, energy generation and medical imaging.

The performance improvement of nanomaterials devices in photonics requires the development of advanced optical materials with improved characteristics such as low cost, simple operation, reduced size, fast response, high surface reactivity and rapid recovery. Different nanostructured and nanocomposite materials have been used in manufacturing photonic devices, including nano-wires, nano-dots, thin films, plasmonic nanomaterials, plasmonic glasses (with embedded metallic nanoparticles), hybrid nanostructures, and others.

Applied Sciences invites interested authors to submit papers for a Special Issue titled Recent Developments in the Application of Nanomaterials in Photonics. The papers should cover the recent experimental and fundamental concepts of photonics. The advanced nanomaterials should demonstrate good performance in photonics applications further to low cost and functionality preparation.

Topics of interest include (but are not limited to):

  • Semiconductor, oxide and metallic nanomaterials;
  • Thin films;
  • Nanocomposites;
  • Plasmonic nanomaterials;
  • Photonic Nanostructures;
  • Plasmonic glasses;
  • 2D-nanostructures;
  • Carbon nanostructures.

Prof. Dr. Habib Elhouichet
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. Applied Sciences 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 2400 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

  • semiconductor, oxide and metallic nanomaterials
  • thin films and 2D nanostructures
  • hybrid nanocomposites
  • plasmonic nanomaterials
  • photonic nanostructures
  • advanced nanomaterials for optical fiber and waveguides
  • nanomaterials for non-linear optics

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Published Papers (1 paper)

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Research

18 pages, 5081 KiB  
Article
Improvement of Luminescence and Photocatalytic Performance of ZnO:Eu3+ Nanocrystals Activated by Na+ Ions
by Wiem Bouslama, Ramzi Nasser, Bernard Gelloz, Amira Ben Gouider Trabelsi, Fatemah Homoud Alkallas, Ji-Ming Song, Ezzeddine Srasra and Habib Elhouichet
Appl. Sci. 2023, 13(14), 8448; https://doi.org/10.3390/app13148448 - 21 Jul 2023
Cited by 2 | Viewed by 1460
Abstract
Undoped and codoped (Eu/Na) ZnO nanocrystals (NCs) were successfully manufactured through an economical sol-gel method. X-ray diffraction (XRD) analysis demonstrated pure hexagonal wurtzite structure without secondary phases for all the samples. The size of the NCs was found to decrease with codoping by [...] Read more.
Undoped and codoped (Eu/Na) ZnO nanocrystals (NCs) were successfully manufactured through an economical sol-gel method. X-ray diffraction (XRD) analysis demonstrated pure hexagonal wurtzite structure without secondary phases for all the samples. The size of the NCs was found to decrease with codoping by Eu3+/Na+ which is related to the existence of strain and stress in the lattice. The dominance of the E2(high) mode in Raman spectra indicates the good crystallinity of the samples. The study from the X-ray photoelectron spectroscopy (XPS) shows the successful insertion of both Eu3+ and Na+ ions into the ZnO lattice and the generation of the zinc and oxygen vacancies (Vo) defects. The band gap energy was reduced and the Urbach energy increased with Na+ content, proving the distortion of the lattice. From the photoluminescence (PL) study, the activation of the Eu3+ ions by Na+ ones was evidenced. Longer PL lifetimes were obtained from Eu3+ ions when they were sensitized by Na+, which may be beneficial to several applications. A process of excitation transfer from both the ZnO host and Na+ sensitizers to the Eu3+ ions was evidenced and discussed. As an application, we tested the performances of the prepared NCs as photocatalysts for Rhodamine B photodegradation under sunlight irradiation. The ZnO NCs codoped with 1% Eu/4% Na displayed the best photodegradation rate with a good stability and a high kinetic rate constant k of 0.021 min−1. The photocatalytic mechanism is discussed in terms of longer radiative recombination from Eu3+ and the generated oxygen vacancies. Full article
(This article belongs to the Special Issue Recent Developments in the Application of Nanomaterials in Photonics)
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