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Advances in Luminescent Organic Materials Design and Application

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Materials Science".

Deadline for manuscript submissions: closed (28 February 2023) | Viewed by 4969

Special Issue Editor


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Guest Editor
Institut Charles Gerhardt de Montpellier (ICGM) - UMR 5253, CNRS - Université de Montpellier - Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM), 34095 Montpellier, France
Interests: luminescent organic materials design; π-conjugated systems; supramolecular chemistry; siloles; organic optoelectronics; aggregation-induced emission; molecular organization in the solid state

Special Issue Information

Dear Colleagues,

Since we have entered the “great history” of sciences thanks to the realization of LEDs, with their subsequent consecration with the awarding of the Nobel Prize in Physics in 2014, luminescent materials have been widely used and well-known by the general public. Primarily governed by inorganic semiconductors, luminescent materials have dramatically widened their fields of applications and also opened new ones with the use of organic pi-conjugated molecules. Thus, besides optoelectronic applications, these (nano)materials have recently found outlets in the field of medicine through photodynamic therapies, (nano)theranostics, imaging and so on. This breakthrough was due to the development of molecules and macromolecules able to efficiently emit in the solid or aggregated state and advances in both organic and supramolecular chemistry, which allowed these structures to be designed with a specific goal in mind.

This Special Issue welcomes the submission of original research papers or comprehensive reviews that demonstrate or summarize significant advances in the design and applications of organic luminescent materials with potential applications in sensors, optoelectronic devices, imaging and/or nanomedicine.

Prof. Dr. Philippe Gerbier
Guest Editor

Manuscript Submission Information

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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. International Journal of Molecular Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. There is an Article Processing Charge (APC) for publication in this open access journal. For details about the APC please see here. 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
  • synthesis
  • properties
  • aggregation
  • molecular engineering
  • optoelectronics
  • nanomedicine
  • photodynamic therapies
  • imaging

Published Papers (2 papers)

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Research

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22 pages, 5791 KiB  
Article
Synthesis and Characterization of Tetraphenylethene AIEgen-Based Push–Pull Chromophores for Photothermal Applications: Could the Cycloaddition–Retroelectrocyclization Click Reaction Make Any Molecule Photothermally Active?
by Maxime Roger, Yann Bretonnière, Yann Trolez, Antoine Vacher, Imane Arbouch, Jérôme Cornil, Gautier Félix, Julien De Winter, Sébastien Richeter, Sébastien Clément and Philippe Gerbier
Int. J. Mol. Sci. 2023, 24(10), 8715; https://doi.org/10.3390/ijms24108715 - 13 May 2023
Viewed by 1643
Abstract
Three new tetraphenylethene (TPE) push–pull chromophores exhibiting strong intramolecular charge transfer (ICT) are described. They were obtained via [2 + 2] cycloaddition–retroelectrocyclization (CA-RE) click reactions on an electron-rich alkyne-tetrafunctionalized TPE (TPE-alkyne) using both 1,1,2,2-tetracyanoethene (TCNE), 7,7,8,8-tetracyanoquinodimethane (TCNQ) and 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane (F4-TCNQ) as [...] Read more.
Three new tetraphenylethene (TPE) push–pull chromophores exhibiting strong intramolecular charge transfer (ICT) are described. They were obtained via [2 + 2] cycloaddition–retroelectrocyclization (CA-RE) click reactions on an electron-rich alkyne-tetrafunctionalized TPE (TPE-alkyne) using both 1,1,2,2-tetracyanoethene (TCNE), 7,7,8,8-tetracyanoquinodimethane (TCNQ) and 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane (F4-TCNQ) as electron-deficient alkenes. Only the starting TPE-alkyne displayed significant AIE behavior, whereas for TPE-TCNE, a faint effect was observed, and for TPE-TCNQ and TPE-F4-TCNQ, no fluorescence was observed in any conditions. The main ICT bands that dominate the UV–Visible absorption spectra underwent a pronounced red-shift beyond the near-infrared (NIR) region for TPE-F4-TCNQ. Based on TD-DFT calculations, it was shown that the ICT character shown by the compounds exclusively originated from the clicked moieties independently of the nature of the central molecular platform. Photothermal (PT) studies conducted on both TPE-TCNQ and TPE-F4-TCNQ in the solid state revealed excellent properties, especially for TPE-F4-TCNQ. These results indicated that CA-RE reaction of TCNQ or F4-TCNQ with donor-substituted are promising candidates for PT applications. Full article
(This article belongs to the Special Issue Advances in Luminescent Organic Materials Design and Application)
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Review

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51 pages, 21529 KiB  
Review
Recent Advances in Applications of Fluorescent Perylenediimide and Perylenemonoimide Dyes in Bioimaging, Photothermal and Photodynamic Therapy
by Oksana Krupka and Piétrick Hudhomme
Int. J. Mol. Sci. 2023, 24(7), 6308; https://doi.org/10.3390/ijms24076308 - 27 Mar 2023
Cited by 10 | Viewed by 2994
Abstract
The emblematic perylenediimide (PDI) motif which was initially used as a simple dye has undergone incredible development in recent decades. The increasing power of synthetic organic chemistry has allowed it to decorate PDIs to achieve highly functional dyes. As these PDI derivatives combine [...] Read more.
The emblematic perylenediimide (PDI) motif which was initially used as a simple dye has undergone incredible development in recent decades. The increasing power of synthetic organic chemistry has allowed it to decorate PDIs to achieve highly functional dyes. As these PDI derivatives combine thermal, chemical and photostability, with an additional high absorption coefficient and near-unity fluorescence quantum yield, they have been widely studied for applications in materials science, particularly in photovoltaics. Although PDIs have always been in the spotlight, their asymmetric counterparts, perylenemonoimide (PMI) analogues, are now experiencing a resurgence of interest with new efforts to create architectures with equally exciting properties. Namely, their exceptional fluorescence properties have recently been used to develop novel systems for applications in bioimaging, biosensing and photodynamic therapy. This review covers the state of the art in the synthesis, photophysical characterizations and recently reported applications demonstrating the versatility of these two sister PDI and PMI compounds. The objective is to show that after well-known applications in materials science, the emerging trends in the use of PDI- and PMI-based derivatives concern very specific biomedicinal applications including drug delivery, diagnostics and theranostics. Full article
(This article belongs to the Special Issue Advances in Luminescent Organic Materials Design and Application)
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