Encapsulation engineering of porous crystalline frameworks for delayed luminescence and circularly polarized luminescence

Chemical Society Reviews, Год журнала: 2024, Номер 53(13), С. 6694 - 6734

Опубликована: Янв. 1, 2024

Delayed luminescence (DF), including phosphorescence and thermally activated delayed fluorescence (TADF), circularly polarized (CPL) exhibit common broad application prospects in optoelectronic displays, biological imaging, encryption. Thus, the combination of is attracting increasing attention. The encapsulation guest emitters various host matrices to form host-guest systems has been demonstrated be an appealing strategy further enhance and/or modulate their luminescence. Compared with conventional liquid crystals, polymers, supramolecular matrices, porous crystalline frameworks (PCFs) metal-organic (MOFs), covalent-organic (COFs), zeolites hydrogen-bonded organic (HOFs) can not only overcome shortcomings such as flexibility disorder but also achieve ordered guests long-term stability chiral structures, providing new promising platforms for development DF CPL. In this review, we provide a comprehensive critical summary recent progress photochemistry

Язык: Английский

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Room temperature phosphorescence materials based on small organic molecules: Design strategies and applications

Deleted Journal, Год журнала: 2024, Номер 2(3)

Опубликована: Июль 23, 2024

Abstract Room‐temperature phosphorescence (RTP) materials have attracted significant attention due to their applications in various fields such as information storage and encryption, organic light‐emitting diode (OLED), sensing, lighting display, biological imaging, photodynamic therapy. Traditionally, RTP can be efficiently developed using inorganic systems with noble metals or rare earth elements. Recently, many efforts been devoted the development of based on small molecules. The strategies construct include hydrogen bonding, heavy atom effect, n –π* transitions, π–π stacking, donor–acceptor host–guest doping. Herein, we summarize recent examples molecules primarily focusing design properties. Moreover, promising OLED, well bio‐imaging phototherapy are discussed. challenges perspectives given provide inspiration toward future materials.

Язык: Английский

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Near‐Infrared Organic Room Temperature Phosphorescent Probes Targeting Fibroblast Activation Protein for Surgical Navigation of Liver Cancer

Aggregate, Год журнала: 2025, Номер unknown

Опубликована: Апрель 6, 2025

ABSTRACT Hepatectomy is a critical treatment for liver cancer, but achieving complete tumor removal remains challenging. The development of tumor‐targeting probes capable accurately identifying locations and providing real‐time intraoperative navigation significant clinical importance. We synthesize tumor‐targeted probe by conjugating fibroblast activation protein inhibitor (FAPI) with near‐infrared organic room temperature phosphorescence (RTP) material. then analyze its surgical performance in the cancer model imaging fresh patient‐derived samples. In vivo validation reveals that exhibits optimal intensity within 48 h (8.53 × 10 5 p s −1 cm −2 sr ) an average signal‐to‐noise ratio 16. could effectively identify FAP‐positive samples from patients. successful application phosphorescence‐guided surgery suggests RTP holds translational value serve as auxiliary tool cancer.

Язык: Английский

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Scalable fabrication of red Room-Temperature phosphorescent materials through molecular doping strategy for versatile applications

Chemical Engineering Journal, Год журнала: 2024, Номер 492, С. 152419 - 152419

Опубликована: Май 20, 2024

Язык: Английский

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Precise Control of Efficient Phosphorescence in Host–Guest Doping Systems via Dynamic Metal–Ligand Coordination

The Journal of Physical Chemistry Letters, Год журнала: 2025, Номер 16(2), С. 537 - 543

Опубликована: Янв. 6, 2025

Organic room-temperature phosphorescent (RTP) materials have wide-ranging applications in anticounterfeiting, biodiagnostics, and optoelectronic devices due to their unique properties. However, it remains a challenge give organic RTP dynamic tunability satisfy the demands of various advanced applications. Herein, we propose an effective strategy precisely modulate performance by incorporating metal–ligand coordination within host–guest doped system. The phosphors bipyridine derivatives with excellent properties were into small-molecule host matrix. Halide salts system effectively tuning performance, including efficiency lifetime, through coordination. Notably, leveraging reversible feature coordination, multilevel information encryption, thermal development time-resolved high reversibility, is successfully demonstrated. work demonstrates that could serve as method for developing efficient tunable

Язык: Английский

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Preparation of Multicolor Room-Temperature Phosphorescence Carbon Dots by Changing the Conjugation Degree of Precursors for Information Encryption

ACS Applied Materials & Interfaces, Год журнала: 2025, Номер 17(9), С. 14425 - 14432

Опубликована: Фев. 20, 2025

Room temperature phosphorescence (RTP) materials have attracted considerable attention, because of their outstanding properties and a wide array potential applications. However, achieving control over the emission color RTP still presents certain challenges. In this article, carbon dots (CDs) three distinct colors were synthesized through simple host-guest doping strategy. Blue CDs (B-CDs) obtained by using phenylboronic acid as guest phosphors B2O3 host protect matrix, an ultralong lifetime (up to 1.597 s). Under 254 nm light excitation, blue for 14 s B-CDs can be visually observed. By increasing conjugation degree precursor molecules introducing 4-(1-naphthyl) naphthalene-1-boronic pyren-1-ylboronic phosphors, green (G-CDs) red (R-CDs) obtained, respectively. Theoretical calculations band gap analyses suggest that larger conjugated structures reduce HOMO-LUMO energy level difference, thereby causing redshift in wavelength. Last, these multicolor composite applied information encryption.

Язык: Английский

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Chiral cocrystals with circularly polarized persistent phosphorescence and large second harmonic generation

Surfaces and Interfaces, Год журнала: 2025, Номер unknown, С. 106114 - 106114

Опубликована: Фев. 1, 2025

Язык: Английский

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Organic Ionic Host–Guest Phosphor with Dual-Confined Nonradiation for Constructing Ultrahigh-Temperature X-ray Scintillator

Journal of the American Chemical Society, Год журнала: 2025, Номер unknown

Опубликована: Март 20, 2025

Scintillators with X-ray-excitable luminescence have attracted great attention in the fields of medical radiography, nondestructive inspection, and high-energy physics. However, thermal quenching significantly reduces radioluminescence efficiency, particularly for those phosphorescent scintillators promising radiation-induced triplet exciton utilization, ultimately limiting their applications high-temperature scenarios. Herein, we develop ultrahigh-temperature based on organic ionic host–guest phosphorescence systems unprecedented thermal-stable emissions up to 673 K. The guest phosphor features spin-vibronic coupling-assisted intersystem crossing, effectively transforming thermally activated delayed fluorescence overcoming inactivation excitons. Meanwhile, rigid host robust electrostatic interactions minimize both intrinsic extrinsic nonradiations excitons, so-called dual-confined nonradiation. These two mechanisms work synergistically, contributing highly efficient exciton-based a room-temperature efficiency 38.7% ultrahigh-temperature-resistant dual emissions. Such an innovative scintillator achieves impressively low X-ray detection limit 71.5 nGy s–1 remarkably bright photoluminescence (efficiency 80.4% at 483 K), enabling imaging.

Язык: Английский

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Clusterization-triggered room-temperature phosphorescent synthetic polymeric materials

Coordination Chemistry Reviews, Год журнала: 2025, Номер 535, С. 216629 - 216629

Опубликована: Март 28, 2025

Язык: Английский

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Stimuli-responsive metal-free phosphorescent materials: From design and mechanisms to emerging applications

Coordination Chemistry Reviews, Год журнала: 2025, Номер 538, С. 216734 - 216734

Опубликована: Апрель 21, 2025

Язык: Английский

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