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Study on Rare Earth Doped Luminescent Materials and Transparent Ceramics
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Study on Rare Earth Doped Luminescent Materials and Transparent Ceramics

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

Deadline for manuscript submissions: 20 July 2024 | Viewed by 3087

Special Issue Editors

Dr. Hui Lin

E-Mail Website
Guest Editor
Engineering Research Center of Optical Instrument and System, Ministry of Education and Shanghai Key Lab of Modern Optical System, University of Shanghai for Science and Technology, Shanghai, China
Interests: transparent ceramic materials
Dr. Jun Wang

E-Mail Website
Guest Editor
Jiangsu Key Laboratory of Advanced Laser Materials and Devices, School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou, China
Interests: transparent ceramic

Special Issue Information

Dear Colleagues,

My name is Hui Lin, and I am a researcher studying luminescent materials and transparent ceramic materials at the University of Shanghai for Science and Technology, China.

Transparent ceramic materials have very similar physical and chemical properties to their single crystalline counterparts, are feasible for large-sized and profiled shape fabrication, and are cost effective. During the past several decades, the optical quality, fabrication cost, and application of transparent ceramic materials have all advanced greatly. The practical application of transparent ceramic materials is developing, with use in ceramic phosphor and scintillators, etc. To summarize the achievements to date and also promote future work in this community, Materials is organizing a Special Issue titled “Transparent Ceramic Materials for Various Optical Applications”.

As the guest editor of this Special Issue, I am inviting you to contribute your work on transparent ceramic materials, which may include (but is not limited to) the following topics: fields of lasers, optical switches, scintillators, IR windows/domes, transparent armors, Faraday materials, and ceramic phosphor.

Your submission is highly appreciated and would be valuable to this Special Issue.

Best regards,

Dr. Hui Lin
Dr. Jun Wang
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. 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

  • transparent ceramic
  • optical properties
  • optical applications
  • laser ceramics
  • scintillator ceramics
  • ceramic IR windows/domes
  • transparent ceramic armor
  • Faraday ceramic materials
  • ceramic phosphors

Published Papers (4 papers)

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Research

14 pages, 4641 KiB  
Article
Red Emitting Solid-State CDs/PVP with Hydrophobicity for Latent Fingerprint Detection
by Zhihong Zhang, Zhaoxia Han, Shuhui Ding, Yujing Jing, Zhenjie Wei, Dawei Zhang, Ruijin Hong and Chunxian Tao
Materials 2024, 17(8), 1917; https://doi.org/10.3390/ma17081917 - 21 Apr 2024
Viewed by 327
Abstract
Fluorescent carbon dots (CDs) are a new type of photoluminescent nanomaterial. Solid-state CDs usually undergo fluorescence quenching due to direct π-π* interactions and superabundant energy resonance transfer. Therefore, the preparation of solid-state fluorescent CDs is a challenge, especially the preparation of long wavelength [...] Read more.
Fluorescent carbon dots (CDs) are a new type of photoluminescent nanomaterial. Solid-state CDs usually undergo fluorescence quenching due to direct π-π* interactions and superabundant energy resonance transfer. Therefore, the preparation of solid-state fluorescent CDs is a challenge, especially the preparation of long wavelength solid-state CDs. In this research, long wavelength emission CDs were successfully synthesized by solvothermal methods, and the prepared CDs showed good hydrophobicity. The composite solid-state CDs/PVP (Polyvinyl pyrrolidone) can emit strong red fluorescence, and the quantum yield (QY) of the CDs/PVP powder reaches 18.9%. The prepared CDs/PVP solid-state powder was successfully applied to latent fingerprint detection. The results indicate that the latent fingerprints developed by CDs/PVP powder have a fine definition and high contrast visualization effect, which proves that the prepared CDs/PVP has great application potential in latent fingerprint detection. This study may provide inspiration and ideas for the design of new hydrophobic CDs. Full article
(This article belongs to the Special Issue Study on Rare Earth Doped Luminescent Materials and Transparent Ceramics)
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10 pages, 3698 KiB  
Communication
Green- and Blue-Emitting Tb3+-Activated Linde Type A Zeolite-Derived Boro-Aluminosilicate Glass for Deep UV Detection/Imaging
by Yongneng Xiao, Shaoyi Hou, Zhenhuai Yang, Xingxing Huang, Yuanjun Guo, Siyu Ji, Xiaochan Huang, Fengshuang Wang, Qiang Hu and Xiaodong Guo
Materials 2024, 17(3), 671; https://doi.org/10.3390/ma17030671 - 30 Jan 2024
Viewed by 513
Abstract
Tb3+-activated LTA zeolite-derived boro-aluminosilicate glass samples with a composition of xTb2O3-68(Na2O-Al2O3-SiO2)–32B2O3 (x = 0.2, 1.0 and 10 extra wt%) were prepared using the melt-quenching method. The [...] Read more.
Tb3+-activated LTA zeolite-derived boro-aluminosilicate glass samples with a composition of xTb2O3-68(Na2O-Al2O3-SiO2)–32B2O3 (x = 0.2, 1.0 and 10 extra wt%) were prepared using the melt-quenching method. The emission spectra recorded upon ultraviolet (UV) excitation with two different wavelengths of 193 and 378 nm showed blue light (5D3 to 7FJ=6,5,4 and 5D4 to 7F6 transitions of Tb3+) and green light (5D4 to 7F5 transition of Tb3+) emissions with comparable intensities up to a Tb3+ concentration of 10 extra wt%. Of note, the mean decay times of the green luminescence of the glass samples were relatively fast (<20 μs). The synthesized glass has potential in applications concerning UV imaging, UV detection, and plasma display panels. Full article
(This article belongs to the Special Issue Study on Rare Earth Doped Luminescent Materials and Transparent Ceramics)
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14 pages, 27546 KiB  
Article
Ce/Mn/Cr: (Re,Y)3Al5O12 Phosphor Ceramics (Re = Gd, Tb and Lu) for White LED Lighting with Significant Spectral Redshift and Improved Color-Rendering Index
by Yukun Li, Svenja Hanson, Cheng Heng Pang, Peng Lyu and Jun Jiang
Materials 2023, 16(20), 6667; https://doi.org/10.3390/ma16206667 - 12 Oct 2023
Viewed by 883
Abstract
In order to attain phosphor ceramics with a high Color-Rendering Index (CRI), samples with the composition of Y0.997−xRexCe0.003)3(Al0.9748 Mn2+0.024Cr3+0.0012)5O12(Rex = 0, Gd0.333 [...] Read more.
In order to attain phosphor ceramics with a high Color-Rendering Index (CRI), samples with the composition of Y0.997−xRexCe0.003)3(Al0.9748 Mn2+0.024Cr3+0.0012)5O12(Rex = 0, Gd0.333, Gd0.666, Gd0.997, Tb0.333, Tb0.666, Tb0.997 and Lu0.997 were prepared by solid-state reaction and vacuum sintering, and exhibited potential for high-quality, solid-state lighting. Doping with Cr3+ and Mn2+ effectively enhanced the red component of Ce3+ spectra through the intense energy transfer from Ce3+ ions to Mn2+/Cr3+ ions. The crystal field splitting of [GdO8] and [TbO8] was more extensive than that of [YO8], causing a massive redshift in the Ce3+ emission peaks from 542 to 561 and 595 nm, while [LuO8] had an opposite effect and caused a blueshift with a peak position at 512 nm. White LED devices incorporating Ce/Mn/Cr: (Gd0.333Y0.664)3Al5O12 phosphor ceramic exhibited a high CRI of 83.97, highlighting the potential for enhancing the red-light component of white LED lighting. Full article
(This article belongs to the Special Issue Study on Rare Earth Doped Luminescent Materials and Transparent Ceramics)
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12 pages, 3969 KiB  
Article
Color Tunable Composite Phosphor Ceramics Based on SrAlSiN3:Eu2+/Lu3Al5O12:Ce3+ for High-Power and High-Color-Rendering-Index White LEDs/LDs Lighting
by Shenrui Ye, Yukun Li, Ming Qiang, Wenhui Lou, Bo Dai, Hui Lin, Zhaoxia Han, Ruijin Hong and Dawei Zhang
Materials 2023, 16(17), 6007; https://doi.org/10.3390/ma16176007 - 31 Aug 2023
Cited by 2 | Viewed by 924
Abstract
Lu3Al5O12:Ce3+ phosphor ceramics were fabricated by vacuum sintering. On this basis, a bi-layer composite phosphor was prepared by low-temperature sintering to cover the phosphor ceramics with a layer of SrAlSiN3:Eu2+-phosphor-in-glass (PiG). The [...] Read more.
Lu3Al5O12:Ce3+ phosphor ceramics were fabricated by vacuum sintering. On this basis, a bi-layer composite phosphor was prepared by low-temperature sintering to cover the phosphor ceramics with a layer of SrAlSiN3:Eu2+-phosphor-in-glass (PiG). The optical, thermal, and colorimetric properties of LuAG:Ce3+ phosphor ceramics, SrAlSiN3:Eu2+ phosphors and SrAlSiN3:Eu2+-PiG were studied individually. Combining the bi-layer composite phosphors with the blue LED chip, it is found that the spectrum can be adjusted by varying the doping concentration of SrAlSiN3:Eu2+-PiG and the thickness of Lu3Al5O12:Ce3+ phosphor ceramics. The maximal color rendering index value of the white LED is 86, and the R9 is 61. Under the excitation of a laser diode, the maximum phosphor conversion efficacy of the bi-layer composite phosphors is 120 lm/W, the Ra is 83, and the correlated color temperature is 4534 K. These results show that the bi-layer composite phosphor ceramic is a candidate material to achieve high color rendering index for high brightness lighting. Full article
(This article belongs to the Special Issue Study on Rare Earth Doped Luminescent Materials and Transparent Ceramics)
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