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Xiong W, Zhang C, Fang Y, Peng M, Sun W. Progresses and Perspectives of Near-Infrared Emission Materials with "Heavy Metal-Free" Organic Compounds for Electroluminescence. Polymers (Basel) 2022; 15. [PMID: 36616447 DOI: 10.3390/polym15010098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 12/16/2022] [Accepted: 12/20/2022] [Indexed: 12/28/2022] Open
Abstract
Organic/polymer light-emitting diodes (OLEDs/PLEDs) have attracted a rising number of investigations due to their promising applications for high-resolution fullcolor displays and energy-saving solid-state lightings. Near-infrared (NIR) emitting dyes have gained increasing attention for their potential applications in electroluminescence and optical imaging in optical tele-communication platforms, sensing and medical diagnosis in recent decades. And a growing number of people focus on the "heavy metal-free" NIR electroluminescent materials to gain more design freedom with cost advantage. This review presents recent progresses in conjugated polymers and organic molecules for OLEDs/PLEDs according to their different luminous mechanism and constructing systems. The relationships between the organic fluorophores structures and electroluminescence properties are the main focus of this review. Finally, the approaches to enhance the performance of NIR OLEDs/PLEDs are described briefly. We hope that this review could provide a new perspective for NIR materials and inspire breakthroughs in fundamental research and applications.
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He J, Wang W, Zhang H, Yu K, Kan G, Wang Y, Guo C, Liu J, Jiang J. High-sensitive detection of fluorene by ambient ionization mass spectrometry. NEW J CHEM 2021. [DOI: 10.1039/d1nj01569a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
High sensitive analysis for fluorene at the sub-ng L−1 level in real water samples was achieved by nebulization-dielectric barrier discharge ionization.
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Affiliation(s)
- Jing He
- State Key Laboratory of Urban Water Resource and Environment
- Harbin Institute of Technology
- Harbin
- P. R. China
- School of Marine Science and Technology
| | - Wenxin Wang
- State Key Laboratory of Urban Water Resource and Environment
- Harbin Institute of Technology
- Harbin
- P. R. China
- School of Marine Science and Technology
| | - Hong Zhang
- State Key Laboratory of Urban Water Resource and Environment
- Harbin Institute of Technology
- Harbin
- P. R. China
- School of Marine Science and Technology
| | - Kai Yu
- State Key Laboratory of Urban Water Resource and Environment
- Harbin Institute of Technology
- Harbin
- P. R. China
- School of Marine Science and Technology
| | - Guangfeng Kan
- State Key Laboratory of Urban Water Resource and Environment
- Harbin Institute of Technology
- Harbin
- P. R. China
- School of Marine Science and Technology
| | - Yingying Wang
- State Key Laboratory of Urban Water Resource and Environment
- Harbin Institute of Technology
- Harbin
- P. R. China
- School of Marine Science and Technology
| | - Changlu Guo
- School of Marine Science and Technology
- Harbin Institute of Technology at Weihai
- Weihai
- P. R. China
| | - Junyu Liu
- School of Marine Science and Technology
- Harbin Institute of Technology at Weihai
- Weihai
- P. R. China
| | - Jie Jiang
- State Key Laboratory of Urban Water Resource and Environment
- Harbin Institute of Technology
- Harbin
- P. R. China
- School of Marine Science and Technology
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Hoang S, Olivier S, Cuenot S, Montillet A, Bellettre J, Ishow E. Microfluidic Assisted Flash Precipitation of Photocrosslinkable Fluorescent Organic Nanoparticles for Fine Size Tuning and Enhanced Photoinduced Processes. Chemphyschem 2020; 21:2502-2515. [PMID: 33073929 DOI: 10.1002/cphc.202000633] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 09/27/2020] [Indexed: 01/05/2023]
Abstract
Highly concentrated dispersions of fluorescent organic nanoparticles (FONs), broadly used for optical tracking, bioimaging and drug delivery monitoring, are obtained using a newly designed micromixer chamber involving high impacting flows. Fine size tuning and narrow size distributions are easily obtained by varying independently the flow rates of the injected fluids and the concentration of the dye stock solution. The flash nanoprecipitation process employed herein is successfully applied to the fabrication of bicomposite FONs designed to allow energy transfer. Considerable enhancement of the emission signal of the energy acceptors is promoted and its origin is found to result from polarity rather than steric effects. Finally, we exploit the high spatial confinement encountered in FONs and their ability to encapsulate hydrophobic photosensitizers to induce photocrosslinking. An increase in the photocrosslinked FON stiffness is evidenced by measuring the elastic modulus at the nanoscale using atomic force microscopy. These results pave the way toward the straightforward fabrication of multifunctional and mechanically photoswitchable FONs, opening novel opportunities in sensing, multimodal imaging, and theranostics.
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Affiliation(s)
- Stéphane Hoang
- CEISAM-UMR CNRS 6230, Université de Nantes, 2 rue de la Houssinière, 44322, Nantes, France
| | - Simon Olivier
- CEISAM-UMR CNRS 6230, Université de Nantes, 2 rue de la Houssinière, 44322, Nantes, France.,Current address: Air Liquide, Air Liquide Facility, 28 Wadai, Tsukuba, Ibaraki, 300-4247, Japan
| | - Stéphane Cuenot
- Université de Nantes, CNRS, Institut des Matériaux Jean Rouxel, IMN, F-44000, Nantes, France
| | - Agnès Montillet
- GEPEA UMR CNRS 6144, IUT Saint Nazaire, Université de Nantes, 58 rue Michel Ange, 44600, Saint Nazaire, France
| | - Jérôme Bellettre
- LTeN UMR CNRS 6607, Polytech Nantes, Université de Nantes, rue Christian Pauc, 44306, Nantes, France
| | - Eléna Ishow
- CEISAM-UMR CNRS 6230, Université de Nantes, 2 rue de la Houssinière, 44322, Nantes, France
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Khisamov R, Sukhikh T, Bashirov D, Ryadun A, Konchenko S. Structural and Photophysical Properties of 2,1,3-Benzothiadiazole-Based Phosph(III)azane and Its Complexes. Molecules 2020; 25:E2428. [PMID: 32456016 PMCID: PMC7288126 DOI: 10.3390/molecules25102428] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 05/17/2020] [Accepted: 05/17/2020] [Indexed: 01/19/2023] Open
Abstract
Here we describe the synthesis of a novel N,N'-bis(2,1,3-benzothiadiazol-4-yl)-1-phenylphosphanediamine (H2L) and its zinc (II) and copper (I) coordination compounds [Zn2L2]·nC7H8 (1·nC7H8), [Zn2(H2L)2Cl4]·nC7H8 (2·nC7H8), and [Cu(H2L)Cl]n·nTHF (3·THF). According to single crystal X-ray diffraction analysis, H2L ligand and its deprotonated species exhibit different coordination modes. An interesting isomerism is observed for the complexes [Zn2(H2L)2Cl4] (2a and 2b) that differ by the arrangement of H2L. Both complexes possess internal cavities capable of incorporating toluene molecules. Upon toluene release, the geometry of 2b changes substantially, while that of 2a changes slightly. Due to the diverse structures, the compounds 1-3 reveal different photophysical properties. These results are discussed based on previously reported studies and DFT (density functional theory) calculations.
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Affiliation(s)
| | - Taisiya Sukhikh
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia; (R.K.); (D.B.); (A.R.); (S.K.)
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