Recent advances of organic long persistent luminescence: Design strategy and internal mechanism

Smart Molecules, Journal Year: 2024, Volume and Issue: 2(3)

Published: Sept. 1, 2024

Abstract Organic afterglow materials have drawn increasing attention for their great potential in practical applications. Until now, most of them just show the lifetimes milliseconds or seconds, while realization long persistent luminescence (LPL) lasting minutes even hours is difficult. In 2017, Adachi and Kabe successfully realize LPL with a duration longer than 1 hour purely organic system, which can be comparable to some excellent inorganic materials. However, partially unclear structure‐property relationship, are still rather scarce, especially stable ones air aqueous solution. this review, we present recent progress LPL, mainly focusing on material design strategy internal mechanism. It anticipated that deep understanding beneficial further development good stability phase.

Language: Английский

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Bioimaging and prospects of night pearls‐based persistence phosphors in cancer diagnostics

Exploration, Journal Year: 2024, Volume and Issue: 4(4)

Published: Jan. 23, 2024

Abstract Inorganic persistent phosphors feature great potential for cancer diagnosis due to the long luminescence lifetime, low background scattering, and minimal autofluorescence. With prominent advantages of near‐infrared light, such as deep penetration, high resolution, autofluorescence, tissue absorption, can be used bioimaging. We focus on highlighting inorganic phosphors, emphasizing synthesis methods applications in diagnostics. Typical synthetic high‐temperature solid state, thermal decomposition, hydrothermal/solvothermal, template are proposed obtain small‐size biological organisms. The mechanisms with different excitation discussed effective matrixes including galliumate, germanium, aluminate, fluoride explored. Finally, current directions where continue optimized how further overcome challenges summarized.

Language: Английский

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Room-Temperature Phosphorescence Materials Featuring Triplet Hybrid Local Charge Transfer Emission

The Journal of Physical Chemistry Letters, Journal Year: 2024, Volume and Issue: 15(11), P. 2995 - 3001

Published: March 8, 2024

Room-temperature phosphorescence materials have found important applications in dissolved oxygen sensing, temperature monitoring, anticounterfeiting, etc., because of their prolonged lifetime. However, the known systems mainly utilize triplet local excited state emission, which is generally less sensitive to microenvironment perturbation. In this work, we designed a series 4-phenyl-1,8-naphthalimide (NMI) derivatives containing different numbers carbazole (Cz) units (denoted as NMI-Cz, NMI-2Cz, and NMI-3Cz). Steady time-resolved spectroscopy studies determined that compounds undergo intramolecular through-space charge transfer solution, yielding hybrid state. emission was observed compound-doped poly(methyl methacrylate) thin films upon ammonia treatment. Interestingly, from exhibited persistence times. We believe film-based, luminescent sensor could be developed by making device emissive fabricated.

Language: Английский

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Principles, properties, and sensing applications of mechanoluminescence materials

Journal of Materials Chemistry C, Journal Year: 2023, Volume and Issue: 11(43), P. 14968 - 15000

Published: Jan. 1, 2023

We introduced the background of mechanoluminescence (ML) materials development and mainstream ML principles. The applications in sensing neighborhood were introduced.

Language: Английский

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Stabilization of Ti3+ in CaTiO3 by doping Y3+ to generate visible light-activated near-infrared persistent luminescence

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: 983, P. 173879 - 173879

Published: Feb. 15, 2024

Language: Английский

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