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Advances in Luminescent Materials: Fabrication and Technological Applications

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

Deadline for manuscript submissions: 20 July 2026 | Viewed by 4867

Special Issue Editor


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Departamento de Ingeniería Industrial, Escuela Superior de Ingeniería y Tecnología, Universidad de La Laguna, Apdo. 456, E-38200 San Cristóbal de La Laguna, Santa Cruz de Tenerife, Spain
Interests: luminescence; upconversion; energy transfer; rare earth ions; optoelectronics; glasses; glass-ceramics; solid-state lasers
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Special Issue Information

Dear Colleagues,

In recent years, optically active materials have attracted considerable interest due to their high potential for the development of technological devices. There is a broad range of materials that can be utilized for optical components, including both organics and inorganics. In this sense, new advanced optical materials are being intensively studied for their technological applications such as lasers, color displays, light emitting diodes, sensors, solar cells, and optical amplifiers.

The aim of this Special Issue, titled “Advances in Luminescent Materials: Fabrication and Technological Applications”, is to highlight the latest advances in luminescent research. Its scope covers the synthesis and structural characterization of materials, the study of optical properties, and possible technological applications.

The topics of interest include the following:

  • Processing methods;
  • Structural and functional characterization;
  • Optically active polymers, crystals, and glass ceramics;
  • Rare-earth doped materials;
  • Laser technology;
  • Nanophotonic materials;
  • Nonlinear photonics;
  • Optical amplifiers;
  • Optoelectro-mechanical systems;
  • Optical devices;
  • Optical materials;
  • Optical sensors;
  • Photonic applications;
  • Color displays;
  • Ultrafast optoelectronics;
  • Anti-counterfeiting.

It is a great pleasure to invite you to submit a manuscript to this Special Issue. Full articles, letters, short communications, tutorials, and reviews are welcome. All submitted works will undergo a rigorous pre-check and peer-review process to ensure the highest scientific quality and relevance to this collection of papers.

Dr. Fernando Rivera-López
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 250 words) can be sent to the Editorial Office for assessment.

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

  • luminescence
  • photonics
  • optoelectronics
  • lasers
  • sensors
  • optical properties
  • upconversion
  • color display
  • rare-earth ions
  • optical devices

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Published Papers (5 papers)

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Research

12 pages, 1159 KB  
Article
Comparison of One- and Two-Photon Photoluminescence of Solution-Grown CsPbBr3 Bulk Crystals
by Da-Chuan Li, Zheng-Da Dong, Hou Wang, Yang Zhang and Chuan-Xiang Sheng
Materials 2026, 19(7), 1303; https://doi.org/10.3390/ma19071303 - 25 Mar 2026
Abstract
We present a temperature-dependent photoluminescence (PL) study of solution-grown CsPbBr3 bulk crystal and thin film, using one-photon and two-photon excitations. Twin planes are observed in X-ray diffraction spectra in crystal. In analyzing PL peak position and spectral widths as function of temperature, [...] Read more.
We present a temperature-dependent photoluminescence (PL) study of solution-grown CsPbBr3 bulk crystal and thin film, using one-photon and two-photon excitations. Twin planes are observed in X-ray diffraction spectra in crystal. In analyzing PL peak position and spectral widths as function of temperature, we find that the electron–phonon interaction is generally stronger in CsPbBr3 crystals than in films. Moreover, with one photon excitation, emissions from excitons and trapped excitons are observed in CsPbBr3 crystal. Under two-photon excitation, only the emissions from trapped excitons are observed in bulk crystal. Our work demonstrates that two-photon excitation PL is more sensitive to the trapped excitons inside CsPbBr3, implicating an optical method to probe the inside quality of the crystal. Full article
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16 pages, 5751 KB  
Article
Tunable Superconductivity in BSCCO via GaP Quantum Dots
by Qingyu Hai, Duo Chen, Ruiyuan Bi, Yao Qi, Lifeng Xun, Xiaoyan Li and Xiaopeng Zhao
Materials 2025, 18(23), 5458; https://doi.org/10.3390/ma18235458 - 3 Dec 2025
Viewed by 1222
Abstract
The enhancement of superconducting properties of high-temperature copper-oxide superconductors like B(P)SCCO remains a hot research topic in the field of superconducting materials. This study introduces GaP quantum dots (QDs) as a heterophase, leveraging their electroluminescent properties to enhance the superconductivity of B(P)SCCO. Experimental [...] Read more.
The enhancement of superconducting properties of high-temperature copper-oxide superconductors like B(P)SCCO remains a hot research topic in the field of superconducting materials. This study introduces GaP quantum dots (QDs) as a heterophase, leveraging their electroluminescent properties to enhance the superconductivity of B(P)SCCO. Experimental results demonstrate that the electroluminescence generated by GaP quantum dots (QDs) under an applied electric field induces tunable superconducting enhancement of B(P)SCCO. A reproducible trend of enhancement in the critical transition temperature (Tc) and depairing current density (Jd) is observed with increasing QD electroluminescent intensity, suggesting a positive correlation. This electroluminescence-induced enhancement dominates over the inherent impurity effects at optimal QD content. Full article
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11 pages, 2169 KB  
Communication
Robust Self-Trapped Exciton Emission in Sb3+-Engineered Lead-Free Cs4SnBr6 Zero-Dimensional Perovskites
by Haixia Wu, Wendi Zhou, Rui Huang, Jie Song, Zhenxu Lin, Yi Zhang, Tianpei Qiu and Hongliang Li
Materials 2025, 18(23), 5324; https://doi.org/10.3390/ma18235324 - 26 Nov 2025
Viewed by 757
Abstract
Zero-dimensional (0D) tin halide perovskites have emerged as promising luminescent materials owing to their broadband emission, high quantum yield, and negligible self-absorption. Yet, their luminescence efficiency and stability remain insufficient for practical optoelectronic applications. Here, Sb3+ dopants are introduced into Cs4 [...] Read more.
Zero-dimensional (0D) tin halide perovskites have emerged as promising luminescent materials owing to their broadband emission, high quantum yield, and negligible self-absorption. Yet, their luminescence efficiency and stability remain insufficient for practical optoelectronic applications. Here, Sb3+ dopants are introduced into Cs4SnBr6 through a water-assisted wet ball milling strategy, resulting in bright and thermally robust emission. The doped materials exhibit pronounced self-trapped exciton (STE) luminescence centered at 525 nm with a broad full width at half maximum of 110 nm, a large Stokes shift of approximately ~1.3 eV, and a photoluminescence lifetime of ~0.8 µs. Remarkably, Sb3+ incorporation boosts the photoluminescence quantum yield (PLQY) up to 64% at room temperature while simultaneously improving thermal stability. Correlated spectroscopic analyses reveal that the Sb3+-induced lattice distortion of the [SnBr6]4− octahedra strengthens electron–phonon interactions and elevates the STE binding energy, thereby stabilizing the excited states and suppressing nonradiative losses. Full article
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11 pages, 1307 KB  
Article
Ligand-Assisted Purification of Mixed-Halide Perovskite Nanocrystals with Near-Unity PLQY for High-Color-Purity Display Applications
by Stephy Jose, Joo Yeon Kim, Hyunsu Cho, Chan-Mo Kang and Sukyung Choi
Materials 2025, 18(21), 4975; https://doi.org/10.3390/ma18214975 - 31 Oct 2025
Cited by 1 | Viewed by 775
Abstract
Cesium halide perovskite nanocrystals (PNCs) have emerged as promising materials for application in high-color-purity displays due to their exceptional optoelectronic properties, which include narrow emission linewidths, tunable bandgaps, and high photoluminescence quantum yields (PLQYs). However, preserving these characteristics during purification remains a major [...] Read more.
Cesium halide perovskite nanocrystals (PNCs) have emerged as promising materials for application in high-color-purity displays due to their exceptional optoelectronic properties, which include narrow emission linewidths, tunable bandgaps, and high photoluminescence quantum yields (PLQYs). However, preserving these characteristics during purification remains a major challenge as surface ligand detachment during the washing process can lead to increased defect states, reduced quantum efficiency, and spectral broadening. The choice of anti-solvent plays a crucial role in maintaining the structural and optical integrity of PNCs, as it directly influences ligand retention and material stability. In this study, we propose an optimized purification strategy for mixed-halide perovskite nanocrystals that incorporates post-synthetic ligand supplementation, in which controlled amounts of oleic acid (OA) and oleylamine (OAm) are sequentially introduced into the crude solution prior to anti-solvent treatment. This approach reinforces surface passivation, suppresses trap state formation, and minimizes halide loss. Consequently, a near-unity PLQY with narrow full-width-at-half-maximum emissions is achieved for both green- and red-emissive nanocrystals, markedly enhancing color purity and providing a promising route toward next-generation wide-color-gamut display technologies. Full article
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13 pages, 2233 KB  
Article
Interfacial Defect Suppression and Enhanced Optical Properties in InP Quantum Dots via Two-Step ZnSe Shelling Strategy
by Jaehyeong Yoo, Sung-Yoon Joe and Jae-Hyeon Ko
Materials 2025, 18(17), 4172; https://doi.org/10.3390/ma18174172 - 5 Sep 2025
Viewed by 1437
Abstract
This study investigates the interfacial structural origin of enhanced optical performance in InP-based quantum dots (QDs) employing a 2-step ZnSe shelling strategy. By comparing InP/ZnSe/ZnS QDs synthesized via 1-step and 2-step shelling methods using identical InP cores, we demonstrate that the 2-step approach [...] Read more.
This study investigates the interfacial structural origin of enhanced optical performance in InP-based quantum dots (QDs) employing a 2-step ZnSe shelling strategy. By comparing InP/ZnSe/ZnS QDs synthesized via 1-step and 2-step shelling methods using identical InP cores, we demonstrate that the 2-step approach results in improved core–shell lattice matching, more favorable carrier dynamics, and enhanced thermal stability. These enhancements are attributed to the formation of an initial thin ZnSe interfacial layer, which facilitates uniform shell growth and suppresses interfacial defect formation. High-resolution transmission electron microscopy and elemental mapping via energy-dispersive X-ray spectroscopy analyses confirm the improved crystallinity and reduced oxygen-related trap states in the 2-step samples. The findings highlight the critical role of interfacial control in determining QD performance and establish the 2-step ZnSe shelling strategy as an effective route to achieving structurally and optically robust QD emitters for advanced optoelectronic applications. Full article
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