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Photonics
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State-of-the-Art Lanthanide Luminescent Materials
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State-of-the-Art Lanthanide Luminescent Materials

A special issue of Photonics (ISSN 2304-6732). This special issue belongs to the section "Optoelectronics and Optical Materials".

Deadline for manuscript submissions: closed (1 December 2023) | Viewed by 4971

Special Issue Editors

Dr. Yingdong Han

E-Mail Website
Guest Editor
College of Science, Civil Aviation University of China, Tianjin 300300, China
Interests: optical materials; spectroscopy; nanotechnology; optics; materials science
Dr. Tong Wei

E-Mail Website
Guest Editor
College of Science, Civil Aviation University of China, Tianjin 300300, China
Interests: material characterization; semiconductor; optics; piezoceramics; luminescent materials
Prof. Dr. Feng Song

E-Mail Website
Guest Editor
School of Physics, Nankai University, Weijin Road No.94, Tianjin 300071,China
Interests: materials chemistry; inorganic chemistry; nanotechnology; optics; optical engineering

Special Issue Information

Dear Colleagues,

Luminescent materials, as an old yet constantly updated subject, have always attracted a steady stream of research interest. At present, they have become a comprehensive subject, combining physics, chemistry, materials, and applications. With the improvement of research tools, the understanding of lanthanide luminescence mechanisms (spectra, lifetime, and internal or external luminous field), the control of material preparation (host materials, synthesis conditions, synthesis technology, etc.), and the exploration of application fields (biomedical, sensing, information technology, display technology, etc.) have significantly progressed. In view of this, we take this Special Issue as an opportunity to welcome experts in the field to share the latest research results of lanthanide luminescent materials.

This Special Issue on luminescent materials will welcome basic and applied cutting-edge research contributions, as regular and review papers, dealing with the following:

  • The development of new-type luminescent materials with interesting luminescent properties, or improved performance in terms of applications;
  • The control of luminescent properties with reasonable mechanism understanding;
  • The modeling of luminescent control/mechanisms with experimental validation;
  • The processing of multidimensional (spectra/lifetime curves or images) data using machine/deep learning methods.

Dr. Yingdong Han
Dr. Tong Wei
Prof. Dr. Feng Song
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. Photonics 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 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

  • lanthanide luminescent materials
  • model
  • luminescence mechanism
  • luminescence control/manipulation/regulation

Published Papers (3 papers)

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Research

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14 pages, 7373 KiB  
Article
Spectral and Cathodoluminescence Decay Characteristics of the Ba1−xCexF2+x (x = 0.3–0.4) Solid Solution Synthesized by Precipitation from Aqueous Solutions and Fusion
by Sergey V. Kuznetsov, Darya S. Yasyrkina, Damir T. Valiev, Sergey A. Stepanov, Alexander A. Alexandrov, Sergey Kh. Batygov, Valeriy V. Voronov, Vasilii A. Konyushkin, Andrey N. Nakladov, Julia A. Ermakova and Pavel P. Fedorov
Photonics 2023, 10(9), 1057; https://doi.org/10.3390/photonics10091057 - 18 Sep 2023
Cited by 1 | Viewed by 773
Abstract
Single-phase samples of the Ba1−xCexF2+x solid solution (x = 0.3–0.4) were synthesized by directional crystallization in the form of single crystals and by co-precipitation from aqueous nitrate solutions using potassium fluoride as a fluorinating agent in the form [...] Read more.
Single-phase samples of the Ba1−xCexF2+x solid solution (x = 0.3–0.4) were synthesized by directional crystallization in the form of single crystals and by co-precipitation from aqueous nitrate solutions using potassium fluoride as a fluorinating agent in the form of nanopowders. The cathodoluminescence of the pressed powder samples was studied in comparison with the BaF2: Ce single crystals in 250–460 nm (2.7–5 eV) spectral range upon excitation by an electron accelerator. The cathodoluminescence spectra of the samples revealed a wide band in the range of 3.0–4.0 eV, which consists of two typical components of Ce3+ with decay time 23 ns in the case of single crystals and three decay times 27 ns, 140–170 ns, and ~600 ns in the case of pressed powders. The decay time of the short-wavelength component (27 ns) in the case of pressed powders is close to the lifetime of the excited state of the Ce3+ ion. The developed X-ray phosphors can be applied for embedding in diamonds for diamond–nanoparticle composite preparation. Full article
(This article belongs to the Special Issue State-of-the-Art Lanthanide Luminescent Materials)
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13 pages, 3314 KiB  
Article
Crystalline Phase, Cross-Section, and Temporal Characteristics of Erbium-Ion in Lu3Ga5O12 Crystal
by Pei Zhang, De-Long Zhang and Yan Wang
Photonics 2023, 10(5), 586; https://doi.org/10.3390/photonics10050586 - 17 May 2023
Cited by 1 | Viewed by 1231
Abstract
An erbium-doped Lu3Ga5O12(LuGG) single crystal was grown by the Czochralski method. The crystalline phase in the grown crystal was analyzed by powder X-ray diffraction. The erbium-ion emission spectra of the crystal were acquired. The erbium-ion emission cross-section [...] Read more.
An erbium-doped Lu3Ga5O12(LuGG) single crystal was grown by the Czochralski method. The crystalline phase in the grown crystal was analyzed by powder X-ray diffraction. The erbium-ion emission spectra of the crystal were acquired. The erbium-ion emission cross-section (ECS) spectrum was computed from the acquired emission spectrum. The erbium-ion absorption cross-section (ACS) spectrum was computed using the McCumber relationship. The results are discussed in contrast to those computed from the acquired absorption spectrum, and the comparison shows that both methods give consistent results. The temporal characteristics of the emissions were also studied based on 0.98 μm pulse pumping. The study shows that the infrared emissions at 1.0, 1.5, and 2.8 μm show mono-exponentially temporal behavior. Instead, the decays of two visible emissions at 0.56 and 0.67 μm show considerable non-exponential features; each trace can be fitted double-exponentially. The non-exponential behavior is associated with those erbium ions that are present in the form of clusters, which enables non-radiative upconversion depopulation and hence additional contribution to the decay through cross relaxation between the erbium ions in clusters. The study also shows that about half of the erbium ions are present in the cluster state in the studied crystal. Full article
(This article belongs to the Special Issue State-of-the-Art Lanthanide Luminescent Materials)
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Review

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17 pages, 8245 KiB  
Review
Rare Earth Ion Doped Luminescent Materials: A Review of Up/Down Conversion Luminescent Mechanism, Synthesis, and Anti-Counterfeiting Application
by Ziyu Chen, Hang Zhu, Jiajie Qian, Zhenxiong Li, Xiameng Hu, Yuao Guo, Yuting Fu, Huazhong Zhu, Wei Nai, Zan Yang, Dan Li and Liling Zhou
Photonics 2023, 10(9), 1014; https://doi.org/10.3390/photonics10091014 - 05 Sep 2023
Cited by 4 | Viewed by 2464
Abstract
With the rapid development of modern technology and information systems, optical anti-counterfeiting and encryption have recently attracted considerable attention. The demand for optical materials is also constantly increasing, with new requirements proposed for performance and application fields. Currently, rare earth ion doped materials [...] Read more.
With the rapid development of modern technology and information systems, optical anti-counterfeiting and encryption have recently attracted considerable attention. The demand for optical materials is also constantly increasing, with new requirements proposed for performance and application fields. Currently, rare earth ion doped materials possess a unique electronic layer structure, underfilled 4f5d electronic configuration, rich electronic energy level, and long-life excited state, which can produce a variety of radiation absorption and emission. The distinctive properties of rare earth are beneficial for using in diverse optical output anti-counterfeiting. Design is essential for rare earth ion doped materials with multiple responsiveness and multi-channel optical information anti-counterfeiting in the field of information security. Therefore, this mini review summarizes the luminescent mechanisms, preparation methods, performance characteristics and anti-counterfeiting application of rare earth doped materials. In addition, we discuss some critical challenges in this field, and potential solutions that have been or are being developed to overcome these challenges. Full article
(This article belongs to the Special Issue State-of-the-Art Lanthanide Luminescent Materials)
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