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Molecules
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Advanced Rare Earth Luminescent Materials – from Fundamentals to Applications
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Advanced Rare Earth Luminescent Materials – from Fundamentals to Applications

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Inorganic Chemistry".

Deadline for manuscript submissions: closed (31 July 2023) | Viewed by 2285

Special Issue Editors

Dr. Dimitrije Mara

E-Mail Website
Guest Editor
Molecular Imaging and Photonics, Department of Chemistry, KU Leuven, Celestijnenlaan 200 D, box 2425, B-3001 Leuven, Belgium
Interests: rare-earth; lanthanide chemistry; luminescence; temperature sensing; coordination chemistry; hybrid materials; fluorescence spectroscopy
Prof. Dr. Jing Liu

E-Mail Website
Guest Editor
Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, School of Materials and Energy, Southwest University, Chongqing 400715, China
Interests: lanthanide; luminescence; fluorescence spectroscopy; upconversion luminescence; multifunctional nanomaterials; low-dimensional nano-synthesis

Special Issue Information

Dear Colleagues,

Rare-earth luminescent materials are is fast-growing field of research which can be found in a wide range of applications such as lighting, sensing, bio-imaging, solar energy conversion, optical telecommunications. Rare-earth-based luminescent materials exhibit excellent optical properties due to their high photostability, sharp emission bands, long luminescent lifetime and high quantum yield. It is of great significance to understand the underlying photophysical process of rare-earth luminescent materials, which can help to manipulate the luminescence performance, and benefit the design of novel materials and further development of applications.

This Special Issue on “Advanced Rare Earth Luminescent Materials – from Fundamentals to Applications” aims at molecular materials, inorganic and hybrid organic–inorganic materials that have luminescent properties and is open to research that deals with synthesis, structural characterization, photoluminescence properties, and applications.

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

  1. Photofunctional rare earth hybrid materials
  2. Photochemical and photophysical processes
  3. Applications of rare earth luminescent materials
  4. Photofunctional rare earth nanoparticles
  5. Luminescent rare earth compounds
  6. Luminescent rare earth MOFs, COFs and HOFs

Dr. Dimitrije Mara
Prof. Dr. Jing Liu
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. Molecules 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 2700 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

  • rare earth
  • luminescence
  • mechanisms
  • applications
  • molecular and hybrid materials
  • nanoparticles
  • inorganic materials
  • upconversion

Published Papers (2 papers)

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Research

16 pages, 5702 KiB  
Article
Excitation-Controlled Host–Guest Multicolor Luminescence in Lanthanide-Doped Calcium Zirconate for Information Encryption
by Yangbo Wang, Yingdong Han, Runfa Liu, Cunping Duan and Huaiyong Li
Molecules 2023, 28(22), 7623; https://doi.org/10.3390/molecules28227623 - 16 Nov 2023
Viewed by 597
Abstract
Efficient control over lanthanide luminescence by regulating excitations offers a real-time and reversible luminescence-managing strategy, which is of great importance and highly desirable for various applications, including multicolor display and information encryption. Herein, we studied the crystal structure, luminescence properties, and mechanisms of [...] Read more.
Efficient control over lanthanide luminescence by regulating excitations offers a real-time and reversible luminescence-managing strategy, which is of great importance and highly desirable for various applications, including multicolor display and information encryption. Herein, we studied the crystal structure, luminescence properties, and mechanisms of undoped and Tb3+/Eu3+-doped CaZrO3 in detail. The intrinsic purple-blue luminescence from host CaZrO3 and the introduced green/red luminescence from guest dopants Tb3+/Eu3+ were found to have different excitation mechanisms and, therefore, different excitation wavelength ranges. This enables the regulation of luminescent color through controlling the excitation wavelengths of Tb3+/Eu3+-doped CaZrO3. Furthermore, preliminary applications for information encryption with these materials were demonstrated using portable UV lamps of 254 and 302 nm. This study not only promotes the development of multicolor luminescence regulation in fixed-composition materials, but also advances the practical applications of lanthanide luminescent materials in visually readable, high-level anti-counterfeiting and information encryption. Full article
(This article belongs to the Special Issue Advanced Rare Earth Luminescent Materials – from Fundamentals to Applications)
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14 pages, 4548 KiB  
Article
New Series of Red-Light Phosphor Ca9−xZnxGd0.9(PO4)7:0.1Eu3+ (x = 0–1)
by Yury Yu. Dikhtyar, Dmitry A. Spassky, Vladimir A. Morozov, Sergey N. Polyakov, Valerya D. Romanova, Sergey Yu. Stefanovich, Dina V. Deyneko, Oksana V. Baryshnikova, Ivan V. Nikiforov and Bogan I. Lazoryak
Molecules 2023, 28(1), 352; https://doi.org/10.3390/molecules28010352 - 01 Jan 2023
Cited by 2 | Viewed by 1316
Abstract
In this study, a new series of phosphors, Ca9−xZnxGd0.9(PO4)7:0.1Eu3+ (x = 0.00–1.00, step dx 0.05), was synthesized, consisting of centro- and non-centrosymmetric phases with β-Ca3(PO4 [...] Read more.
In this study, a new series of phosphors, Ca9−xZnxGd0.9(PO4)7:0.1Eu3+ (x = 0.00–1.00, step dx 0.05), was synthesized, consisting of centro- and non-centrosymmetric phases with β-Ca3(PO4)2-type structure. Crystal structures with space groups R3c (0.00 ≤ x < 0.35) and R3¯c (x > 0.8) were determined using X-ray powder diffraction and the method of optical second harmonic generation. In the region 0.35 ≤ x ≤ 0.75, phases R3c and R3¯c were present simultaneously. Refinement of the Ca8ZnGd(PO4)7 crystal structure with the Rietveld method showed that 71% of Gd3+ ions are in M3 sites and 29% are in M1 sites. A luminescent spectroscopy study of Ca9−xZnxGd0.9(PO4)7:0.1Eu3+ indicated the energy transfer from the crystalline host to the Gd3+ and Eu3+ luminescent centers. The maximum Eu3+ luminescence intensity corresponds to the composition with x = 1. Full article
(This article belongs to the Special Issue Advanced Rare Earth Luminescent Materials – from Fundamentals to Applications)
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