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Advanced Materials for Luminescent Applications

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

Deadline for manuscript submissions: 20 December 2024 | Viewed by 5676

Special Issue Editor

Dr. F. Rivera-López

E-Mail Website
Guest Editor
Departamento de Ingeniería Industrial, Universidad de La Laguna, Apdo. 456, E-38200 San Cristóbal de La Laguna, Spain
Interests: luminescence; upconversion; energy transfer; rare earth ions; optoelectronics; glasses; glass-ceramics; solid-state lasers
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

In recent years, optical materials have attracted considerable interest due to their potential for the development of technological devices. Among optical components, there is a broad range of materials, including organics and inorganics. In this sense, new advanced materials have been intensively studied for their applications as lasers, color displays, light emitting diodes, solar cells, and optical amplifiers, among other.

The aim of this Special Issue, “Advanced Materials for Luminescent Applications”, is to highlight the latest advances in luminescent research. The scope covers the synthesis and structural characterization of materials (both organic and inorganic), the study of the optical properties, and the possible technological applications.

The topics of interest for publication include but are not limited to the following fields:

  • Color displays;
  • Laser technology;
  • Nanophotonic materials;
  • Nonlinear photonics;
  • Optical amplifiers;
  • Optoelectromechanical systems;
  • Optical devices;
  • Optical materials;
  • Optical sensors;
  • Photonic applications;
  • Ultrafast optoelectronics/

It is our pleasure to invite you to submit a manuscript for this Special Issue. Full articles, letters, short communications, tutorials, and reviews are welcome.

Dr. F. 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 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

  • photonics
  • lasers
  • sensors
  • upconversion
  • luminescence
  • optical properties
  • optical amplifiers
  • energy transfer
  • rare earth ions
  • optoelectronics

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Published Papers (4 papers)

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Research

13 pages, 4622 KiB  
Article
Diphenylamino-Modified Neutral Pt(II) Complexes: Their Aggregation-Induced Phosphorescent Emission and Picric Acid-Sensing Properties
by Qinglong Zhang, Yingying Yan, Rui Cai, Xiao-Na Li and Chun Liu
Materials 2024, 17(17), 4366; https://doi.org/10.3390/ma17174366 - 3 Sep 2024
Viewed by 638
Abstract
Three neutral Pt(II) complexes with diphenylamino-modified 2-phenylpyridine derivatives as cyclometalating ligands and acetylacetone as the ancillary ligand exhibit aggregation-induced phosphorescent emission (AIPE) properties in THF/H2O. The crystal structures of the complexes highlight the contributions of non-covalent Pt···Pt interactions and hydrogen bonds [...] Read more.
Three neutral Pt(II) complexes with diphenylamino-modified 2-phenylpyridine derivatives as cyclometalating ligands and acetylacetone as the ancillary ligand exhibit aggregation-induced phosphorescent emission (AIPE) properties in THF/H2O. The crystal structures of the complexes highlight the contributions of non-covalent Pt···Pt interactions and hydrogen bonds to the AIPE properties. These AIPE-active Pt(II) complexes 1–3 have been successfully applied to detect picric acid (PA) in aqueous media, affording the lowest limit of detection at 70 nM. Furthermore, three Pt(II) complexes are able to detect PA in common water samples. The quenching of luminescence in the detection can be attributed to photo-induced electron transfer. Full article
(This article belongs to the Special Issue Advanced Materials for Luminescent Applications)
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17 pages, 8300 KiB  
Article
The Influence of the Molecular Structure of Compounds on Their Properties and the Occurrence of Chiral Smectic Phases
by Magdalena Urbańska, Monika Zając, Paweł Perkowski and Aleksandra Deptuch
Materials 2024, 17(3), 618; https://doi.org/10.3390/ma17030618 - 27 Jan 2024
Viewed by 1143
Abstract
We have designed new chiral smectic mesogens with the -CH2O group near the chiral center. We synthesized two unique rod-like compounds. We determined the mesomorphic properties of these mesogens and confirmed the phase identification using dielectric spectroscopy. Depending on the length [...] Read more.
We have designed new chiral smectic mesogens with the -CH2O group near the chiral center. We synthesized two unique rod-like compounds. We determined the mesomorphic properties of these mesogens and confirmed the phase identification using dielectric spectroscopy. Depending on the length of the oligomethylene spacer (i.e., the number of methylene groups) in the achiral part of the molecules, the studied materials show different phase sequences. Moreover, the temperature ranges of the observed smectic phases are different. It can be seen that as the length of the alkyl chain increases, the liquid crystalline material shows more mesophases. Additionally, its clearing (isotropization) temperature increases. The studied compounds are compared with the structurally similar smectogens previously synthesized. The helical pitch measurements were performed using the selective reflection method. These materials can be useful and effective as chiral components and dopants in smectic mixtures targeted for optoelectronics and photonics. Full article
(This article belongs to the Special Issue Advanced Materials for Luminescent Applications)
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14 pages, 2178 KiB  
Article
Dual-Emissive Monoruthenium Complexes of N(CH3)-Bridged Ligand: Synthesis, Characterization, and Substituent Effect
by Si-Hai Wu, Zhe Zhang, Ren-Hui Zheng, Rong Yang, Lianhui Wang, Jiang-Yang Shao, Zhong-Liang Gong and Yu-Wu Zhong
Materials 2023, 16(20), 6792; https://doi.org/10.3390/ma16206792 - 20 Oct 2023
Cited by 1 | Viewed by 1151
Abstract
Three monoruthenium complexes 1(PF6)2–3(PF6)2 bearing an N(CH3)-bridged ligand have been synthesized and characterized. These complexes have a general formula of [Ru(bpy)2(L)](PF6)2, where L [...] Read more.
Three monoruthenium complexes 1(PF6)2–3(PF6)2 bearing an N(CH3)-bridged ligand have been synthesized and characterized. These complexes have a general formula of [Ru(bpy)2(L)](PF6)2, where L is a 2,5-di(N-methyl-N’-(pyrid-2-yl)amino)pyrazine (dapz) derivative with various substituents, and bpy is 2,2′-bipyridine. The photophysical and electrochemical properties of these compounds have been examined. The solid-state structure of complex 3(PF6)2 is studied by single-crystal X-ray analysis. These complexes show two well-separated emission bands centered at 451 and 646 nm (Δλmax = 195 nm) for 1(PF6)2, 465 and 627 nm (Δλmax = 162 nm) for 2(PF6)2, and 455 and 608 nm (Δλmax = 153 nm) for 3(PF6)2 in dilute acetonitrile solution, respectively. The emission maxima of the higher-energy emission bands of these complexes are similar, while the lower-energy emission bands are dependent on the electronic nature of substituents. These complexes display two consecutive redox couples owing to the stepwise oxidation of the N(CH3)-bridged ligand and ruthenium component. Moreover, these experimental observations are analyzed by computational investigation. Full article
(This article belongs to the Special Issue Advanced Materials for Luminescent Applications)
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9 pages, 3624 KiB  
Article
One-Pot Synthesis and Characterization of CuCrS2/ZnS Core/Shell Quantum Dots as New Blue-Emitting Sources
by Ho-Kyung Lee, Ye-Jun Ban, Hyun-Jong Lee, Ji-Hyeon Kim and Sang-Joon Park
Materials 2023, 16(2), 762; https://doi.org/10.3390/ma16020762 - 12 Jan 2023
Cited by 5 | Viewed by 1837
Abstract
In this paper, we introduce a new blue-emitting material, CuCrS2/ZnS QDs (CCS QDs). To obtain bright and stable photoluminescent probes, we prepared a core/shell structure; the synthesis was conducted in a one-pot system, using 1-dodecanethiol as a sulfur source and co-ligand. [...] Read more.
In this paper, we introduce a new blue-emitting material, CuCrS2/ZnS QDs (CCS QDs). To obtain bright and stable photoluminescent probes, we prepared a core/shell structure; the synthesis was conducted in a one-pot system, using 1-dodecanethiol as a sulfur source and co-ligand. The CCS QDs exhibited a semi-spherical colloidal nanocrystalline shape with an average diameter of 9.0 nm and ZnS shell thickness of 1.6 nm. A maximum photoluminescence emission peak (PL max) was observed at 465 nm with an excitation wavelength of 400 nm and PLQY was 5% at an initial [Cr3+]/[Cu+] molar ratio of one in the core synthesis. With an off-stoichiometric modification for band gap engineering, the CCS QDs exhibited slightly blue-shifted PL emission spectra and PLQY was 10% with an increase in initial molar ratio of 2.0 (462 nm PL max). However, when the initial molar ratio exceeded two, the CCS QDs exhibited a lower photoluminescence quantum yield of 4.5% with 461 nm of PL max at the initial molar ratio of four due to the formation of non-emissive Cr2S3 nanoflakes. Full article
(This article belongs to the Special Issue Advanced Materials for Luminescent Applications)
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