Platinum complexes with aggregation-induced emission

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(11), P. 5366 - 5393

Published: Jan. 1, 2024

Recent advances in the design of AIE platinum complexes: structural regulation strategies, mechanisms, and applications.

Language: Английский

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Hydrogen‐Bonded Organic Frameworks Enabling Highly Robust Aqueous Phase Ultralong Room‐Temperature Phosphorescence

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(33)

Published: March 12, 2024

Abstract Aqueous phase room‐temperature phosphorescence (RTP) materials are attracting increasing interest owing to their unique optical properties and promising applications. However, the realization of ultralong aqueous state RTP remains a formidable challenge due severe quenching triplet excitons in medium. In this study, universal strategy is presented achieve through encapsulation organic phosphors within rigid hydrogen‐bonded frameworks (HOFs) by situ self‐assembly. Benefiting from compact microenvironments provided HOFs, nonradiative dissipations immensely suppressed populated greatly stabilized geometrical confinement isolating quenchers. As result, assembled HOFs‐based reveal robust emission with an lifetime up 493.1 ms exhibit long‐term structural stability water even harsh conditions (acid base) for more than 10 days. Moreover, fluorescent dye introduced finely tune afterglow performance based on triplet‐to‐singlet Förster resonance energy transfer (TS‐FRET), facilitating advanced information encryption anticounterfeiting This study provides reliable method design prepare expands applications encryption.

Language: Английский

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Engineering Solid‐State Fluorescent Carbon Dots with Aggregation‐Induced Emission by Fatty Amine Chains‐Regulated Charge Transfer and π‐π Stacking

Advanced Optical Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 16, 2025

Abstract Carbon dots (CDs) are an encouraging green luminescent material; however, the aggregation‐caused quenching (ACQ) effect poses a significant limitation for their use in solid‐state devices. By adjusting precursor fatty amine chains, this paper synthesized four emissive CDs with aggregation‐induced emission (AIE) properties (Lx‐CDs). When water is introduced, generation of Lx‐CDs aggregates creates switching off carbon‐core (blue) acetic acid solution and on surface‐state (orange). Results demonstrate that disulfide bond chain structures allow considerable inhibition distance aromatic skeletons, causing aggregation‐state emission, multiple interactions can reduce non‐radiative processes benefiting AIE. Besides, fast slow fluorescence species be confirmed to correspond paths surface‐state, respectively. The wavelength, photoluminescence quantum yield (PLQY), AIE strength engineered by regulated charge transfer π‐π stacking. This study not only reveals intrinsic mechanism luminescence dynamics but also provides method controlling wavelength enhancing aggregated particles using length.

Language: Английский

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Advances in organic room-temperature phosphorescence: Design strategies, photophysical mechanisms, and emerging applications

Materials Chemistry Frontiers, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Organic room-temperature phosphorescence can be facilitated according to rational design principles that promote intersystem crossing and decrease non-radiative decay in aggregated states, demonstrating versatile applications across multiple fields.

Language: Английский

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Multi‐Dimensional Color Tunable Long Persistent Luminescence in Metal Halide‐Based CPs Through Precise Manipulation of Electronic and Steric Effects

Small, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 5, 2025

Regulating strategies for long persistent luminescence (LPL) are always in high demand. Herein, a series of coordination polymers (CPs) (SUST-Z1-Z4) fabricated using 1,10-phenanthroline derivatives involving different substituents (─H, ─CH

Language: Английский

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Accurately adjusted phenothiazine conformations: reversible conformation transformation at room temperature and self-recoverable stimuli-responsive phosphorescence

Light Science & Applications, Journal Year: 2025, Volume and Issue: 14(1)

Published: Feb. 26, 2025

Abstract Conformational flexibility is essential to the stimuli-responsive property of organic materials, but achieving reversible molecular transformation still challenging in functional materials for high energy barriers and restriction by intermolecular interactions. Herein, through incorporation various steric hindrances into phenothiazine derivatives with different positions quantities tune conformations adjustable repulsive forces, folded angles gradually changed from 180° 90° 17 compounds. When angle located at 112° moderated effect, dynamic under mechanical force has been achieved low mutually regulated motions, resulting both self-recoverable phosphorescence properties first time. It opened up a new way realize self-recovery which can facilitate multi-functional smart avenue other fields inspiration.

Language: Английский

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Producing sustainable room temperature phosphorescent materials using natural wood and sucrose

Cell Reports Physical Science, Journal Year: 2024, Volume and Issue: 5(2), P. 101792 - 101792

Published: Jan. 31, 2024

Producing room temperature phosphorescent materials from natural sources is essential for sustainability. However, either toxic chemical reagents or complicated processing still required to produce such derived resources. Here, we sustainable phosphorescence (RTP) wood and sugar. Specifically, sugar introduced into a matrix, which confines the lignin in matrix situ. As result, treated (sucrose [S-wood]) exhibited RTP emissions with lifetime of ∼284.4 ms. Life cycle carbon analysis indicates that ∼8.1–11.2 kg CO2 produced during preparation S-wood, lower than other similar materials. Moreover, S-wood could be naturally degraded soil over 40 days. demonstration practical potential, used visual decorations anti-counterfeiting applications.

Language: Английский

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Controllable π–π coupling of intramolecular dimer models in aggregated states

Chemical Science, Journal Year: 2024, Volume and Issue: 15(12), P. 4364 - 4373

Published: Jan. 1, 2024

In situ regulation of π–π coupling was realized with the combination rigid intramolecular dimer models and external stimuli, mainly due to balance solvent–π interactions. The results establish quantitative relationship between emission properties distances.

Language: Английский

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Perfluoroaryl⋯aryl interaction: The most important subset of π -hole⋯ π bonding

Chemical Physics Reviews, Journal Year: 2024, Volume and Issue: 5(3)

Published: July 9, 2024

The perfluoroaryl⋯aryl interaction, the most important subset of π-hole⋯π bonding, refers to attractive stacking interaction between a perfluoroaryl group and an aryl group. In contrast aryl⋯aryl with same size, much stronger has its own characteristics applications. A brief history development was given first in this review, followed by overview state-of-the-art nature interaction. Much attention paid application both traditional research fields such as crystal engineering organic luminescent materials hot photovoltaics biological engineering. It is believed that timely comprehensive review provides foundation guide for future

Language: Английский

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Phenothiazine Derivatives as Small‐Molecule Organic Cathodes with Adjustable Dropout Voltage and Cycle Performance

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(21)

Published: Feb. 9, 2024

Abstract Compared with conventional inorganic materials, organic electrodes are competitive candidates for secondary battery cathodes due to their resourcefulness, environmental friendliness, and cost‐effectiveness. Much effort is devoted at the level of chemical structure, while ignoring impact molecular aggregation on behavior. Herein, this work designs a series molecules two electrochemically active phenothiazine groups linked by different lengths alkyl chain regulate symmetry crystallinity. The results emphasize equally important role structure performance. Among them, 2PTZ‐C 7 H 14 |Li cell exhibits most impressive cycle rate At high 50 C, it can still deliver capacity 63.4 mA h g −1 74.5% retention after 10 000 cycles. Besides, dropout voltage 9 18 only 52 mV, which among lowest reported lithium‐organic batteries best author's knowledge.

Language: Английский

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