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Inorganics
Special Issues
Luminescent and Photoluminescent Properties of Hybrid Halide Materials
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Luminescent and Photoluminescent Properties of Hybrid Halide Materials

A special issue of Inorganics (ISSN 2304-6740).

Deadline for manuscript submissions: 31 October 2025 | Viewed by 240

Special Issue Editor

Dr. Shuai Zhang

E-Mail Website
Guest Editor
State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques, Guangdong Engineering Technology Research and Development Centre of Special Optical Fiber Materials and Devices, School of Physics and Optoelectronics, South China University of Technology, Guangzhou 510641, China
Interests: X-ray scintillation; PLQY; hybrid material design; structure–property relationships; advanced imaging technologies

Special Issue Information

Dear Colleagues,

This Special Issue focuses on the development and application of Mn-, Cu-, and Ce-based hybrid halide materials as advanced X-ray scintillators. Hybrid halide materials have attracted significant attention due to their outstanding photoluminescence properties, tunable emission spectra, and high potential for efficient X-ray detection. This Special Issue welcomes contributions addressing the design, synthesis, and structural optimization of these materials to improve their photoluminescence quantum yield (PLQY) and X-ray scintillation performance. Furthermore, studies leveraging advanced techniques, such as machine learning for high-throughput material screening, or investigating the underlying structure–property relationships in these hybrid systems are particularly encouraged. By focusing on the intersection of material science, photophysics, and practical applications, this Special Issue aims to advance the understanding and utility of hybrid halide scintillators, paving the way for their integration into cutting-edge imaging and detection technologies.

This Special Issue is intended to serve as a platform for researchers to share novel insights, methodologies, and visionary perspectives in this dynamic and interdisciplinary field.

Dr. Shuai Zhang
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. Inorganics 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 2200 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

  • Mn-based hybrid halides
  • Cu-based scintillators
  • Ce-based luminescent materials
  • X-ray scintillation
  • photoluminescence quantum yield (PLQY)
  • hybrid material design
  • machine learning in material optimization
  • high-throughput screening
  • structure-property relationships
  • advanced imaging technologies

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Published Papers (1 paper)

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16 pages, 7837 KiB  
Article
Light Output Response of a Barium Fluoride (BaF2) Inorganic Scintillator Under X-Ray Radiation
by Vasileios Ntoupis, Christos Michail, Nektarios Kalyvas, Athanasios Bakas, Ioannis Kandarakis, George Fountos and Ioannis Valais
Inorganics 2025, 13(3), 83; https://doi.org/10.3390/inorganics13030083 - 13 Mar 2025
Viewed by 161
Abstract
In this study, the luminescence efficiency of a crystal-form barium fluoride (BaF2) inorganic scintillator was assessed for medical imaging applications. For the experiments, we used a typical medical X-ray tube (50–140 kVp) for estimating the absolute luminescence efficiency (AE). Furthermore, we [...] Read more.
In this study, the luminescence efficiency of a crystal-form barium fluoride (BaF2) inorganic scintillator was assessed for medical imaging applications. For the experiments, we used a typical medical X-ray tube (50–140 kVp) for estimating the absolute luminescence efficiency (AE). Furthermore, we examined the spectral matching of the inorganic scintillator with a series of optical detectors. BaF2 showed a higher AE than cerium fluoride (CeF3), comparable to that of commercially available bismuth germanate (Bi4Ge3O12-BGO), but lower than that of the gadolinium orthosilicate (Gd2SiO5:Ce-GSO:Ce) inorganic scintillator. The maximum AE of BaF2 was 2.36 efficiency units (EU is the S.I. equivalent μWm−2/(mR/s) at 140 kVp, which is higher than that of the corresponding fluoride-based CeF3 (0.8334 EU)) at the same X-ray energy. GSO:Ce and BGO crystals, which are often integrated in commercial positron emission tomography (PET) scanners, had AE values of 7.76 and 3.41, respectively. The emission maximum (~310 nm) of BaF2 is adequate for coupling with flat-panel position-sensitive (PS) photomultipliers (PMTs) and various photocathodes. The luminescence efficiency results of BaF2 were comparable to those of BGO; thus, it could possibly be used in medical imaging modalities, considering its significantly lower cost. Full article
(This article belongs to the Special Issue Luminescent and Photoluminescent Properties of Hybrid Halide Materials)
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