Scaffolding and Heavy-Atom Effects of Metal Chains Enhanced Tunable Long Persistent Luminescence in Metal–Organic Frameworks DOI

Xudong Xue,

Zheng Wang

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 64(1), P. 435 - 442

Published: Dec. 28, 2024

Metal–organic frameworks (MOFs) with long persistent luminescence (LPL) have attracted extensive research attention due to their potential applications in information encryption, anticounterfeiting technology, and security logic. The strategic combinations of organic phosphor linkers metal ions lead tremendous frameworks, which could unveil many undiscovered properties organics. Here, the synthesis characterization a three-dimensional MOF (Cd-MOF) is reported, demonstrates enhanced blue photoluminescence phosphorescent lifetime 124 ms as compared pristine linker (H2L) under ambient conditions scaffolding heavy-atom effects chains framework. Notably, Cd-MOF exhibits intriguing excitation-, time-, temperature-dependent LPL, duration 3 s at room temperature ability shift from green yellow lower temperatures. Optical characterizations theoretical calculations reveal that H2L molecules are responsible for emissions Cd-MOF, while LPL molecular phosphors can be significantly regulated through coordination interactions effect chains. This work highlights such materials promising candidates multiple anticounterfeiting, displaying, encryption applications.

Language: Английский

Dual‐Driven Activation of High‐Valence States in Prussian Blue Analogues Via Graphene‐Quantum Dots and Ozone‐Induced Surface Restructuring for Superior Hydrogen Evolution Electrocatalyst DOI Open Access

Angelina Melanita Tarigan,

Mia Rinawati,

Sofiannisa Aulia

et al.

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

Published: Jan. 2, 2025

Abstract Electrochemical water splitting is a pivotal process for sustainable hydrogen energy production, relying on efficient evolution reaction (HER) catalysts, particularly in acidic environments, where both high activity and durability are crucial. Despite the favorable kinetics of platinum (Pt)‐based materials, their performance hindered under harsh conditions, driving search alternatives. Due to unique structural characteristic, Prussian blue analogs (PBAs) emerge as attractive candidates designing HER electrocatalysts. However, modulating properties functionalities crucial overcome conductivity issue. Herein, reconfiguration strategy dual‐driven surface restructuring CoFe PBA involving graphene quantum dots (GQD) UV/ozone proposed. X‐ray absorption spectroscopy (XAS) analysis revealed that reconstruction plays role promoting high‐valence metal ions, effectively reducing charge transfer resistance—a key limitation HER. The optimized PBA/GQD‐UV exhibits remarkable electrocatalytic toward HER, with low overpotential 77 mV reach current density 10 mA cm −2 excellent 12 h an extremely 500 solution. This dual‐combination offering new pathway develop highly active

Language: Английский

Citations

1
Circularly Polarized Organic Ultralong Room‐Temperature Phosphorescence: Generation, Enhancement, and Application DOI Open Access

Jiao Liu,

Xinyu Zhou, Xianhui Tang

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 16, 2024

Abstract Circularly polarized luminescent (CPL) materials have garnered tremendous attention owing to their expanded optical properties beyond emission wavelength and intensity. Among these, the emerging circularly organic ultralong room‐temperature phosphorescence (CP‐OURTP) materialsdemonstrating elegant distinct features are of significant importance for extended lifetime, which represent a novel frontier in research with promising scientific technological applications across diverse fields. This review systematically outlines traditional strategies achieve CP‐OURTP including crystals, copolymerization, host–guest doping, combination copolymerization spinning twisting technology, supramolecular polymer assembly. Importantly, recent progress chiral soft materials, such as liquid crystals (LCs) involving lyotropic LCs (cellulose nanocrystals, CNCs) thermotropic (cholesteric LC elastomers), is showcased. Finally, practical summarized, concludes perspectives on current challenges future opportunities materials. aims inspire further innovations fabrication advanced enrich applications.

Language: Английский

Citations

5
Chiral Co‐assembly Based on a Stimuli‐Responsive Polymer towards Amplified Full‐Color Circularly Polarized Luminescence DOI
Wenlong Zhao, Wei‐Chen Guo, Kai Tan

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 10, 2024

Abstract Stimuli‐responsive circularly polarized luminescence (CPL) materials have been attaching wide attention in the field of optical information storage and encryption, while still facing challenge realization high dissymmetry factors ( g lum ). This work presents a pair stimuli‐responsive chiral co‐assemblies P7R3 P7S3 by combining polymer PFIQ containing iso ‐quinoline units with inducers. The obtained can reversibly undergo significant modification CPL behavior under trifluoroacetic acid (TFA) fumigation annealing treatment, |g | values exhibiting reversible shift between 0.2 0.3. Moreover, before TFA fumigating effectively induce achiral emitters to generate intense full‐color signals through energy transfer (CPL‐ET), corresponding larger than 0.2. encryption decryption as well multi‐level logic gates application are achieved leveraging activity co‐assembly. provides new perspective for construction luminescent large activation emitters.

Language: Английский

Citations

4
Dual-ligand chiral MOFs exhibiting circularly polarized room temperature phosphorescence for anti-counterfeiting DOI
Huifang Zheng, Qingqing Wang, Xinchao Wang

et al.

Science China Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 3, 2025

Language: Английский

Citations

0
Bright red circularly polarized luminescence of liquid crystalline polymer network films DOI Creative Commons
Zonglin Li, Xuan Wang, Wei Zhang

et al.

Next Materials, Journal Year: 2025, Volume and Issue: 6, P. 100489 - 100489

Published: Jan. 1, 2025

Language: Английский

Citations

0
Tunable and Responsive Circularly Polarized Luminescence of Self‐Organized Cellulose Nanocrystal Chiral Superstructures Loaded with AIE Luminogen DOI Open Access
Baohua Yuan, Q. Jing,

Longxiang He

et al.

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

Published: Feb. 9, 2025

Abstract Circularly polarized luminescence (CPL) holds great potential for next‐generation display techniques. However, dynamic, multicolor CPL with high luminescent quantum yield (PLQY) and tunable dissymmetry factor ( g lum ) based on cost‐effective, sustainable materials is scarcely attainable. Herein, a straightforward approach proposed engineering cellulose nanocrystal (CNC) chiral superstructures loaded aggregation‐induced emission luminogens (AIEgens) through the evaporation‐induced self‐assembly of renewable CNCs tetra‐(4‐pyridylphenyl)ethylene molecules. The judicious design two building blocks as donor–acceptor pairs not only respectively achieves an 86‐fold 2.1‐fold improvement in PLQY resulting systems suspension aggregate states comparison bare AIEgens, but also endows AIEgen‐loaded CNC pH‐tunable, humidity‐responsive, maximal | 0.89. It revealed that induction photonic bandgap effects—which are dominated by interactions homogeneous or heterogeneous processes—are involved mechanisms. Finally, humidity‐responsive multiple changes (structural color, fluorescent CPL) realized both biobased inks films, which paramount importance applications dynamic information encryption. This work offers underlying insights construction dynamically CPL.

Language: Английский

Citations

0
Breathable Biomimetic Chiral Porous MOF Thin Films for Multiple Enantiomers Sensing DOI Open Access

Na Li,

Jinyong Zhang, Christof Wöll

et al.

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

Published: Feb. 12, 2025

Abstract Chiral sensing is essential in pharmaceuticals, food safety, and environmental monitoring, but effectively accurately detecting various enantiomers continues to be a substantial challenge. Inspired by the dynamic conformational change of olfactory receptor proteins, natural L‐carnosine (Car) used as ligand assemble first highly crystalline oriented chiral peptide‐based metal‐organic framework (MOF) thin films with liquid‐phase epitaxial layer‐by‐layer approach (named surfac‐coordinated MOF films, SURMOFs). By adjusting solvent environment, these at same time porous SURMOFs mimic flexibility exhibiting structural changes. This “breathing effect” enables ZnCar selectively sense six fragrance enantiomers, including (+)/(−)‐carvone, (+)/(−)‐menthol, (+)/(−)‐limonene. incorporating into quartz crystal microbalance (QCM) analyzing frequency shifts using convolutional neural networks (CNN), sensitive gravimetric biomimetic sensor capable multiple has been developed. With sensitivity range 10 200 ppm, reached recognition accuracy 98.58% for showcasing outstanding selectivity flexibility.

Language: Английский

Citations

0
Interactive chirality transfer between chiral phosphor and achiral polyacetylene for constructing multi-color circularly polarized room temperature phosphorescence DOI
Kai Yang,

Xinhui Gao,

Xujie Wang

et al.

Next Materials, Journal Year: 2025, Volume and Issue: 8, P. 100558 - 100558

Published: Feb. 26, 2025

Language: Английский

Citations

0
Intelligent corrosion control through Nano-porous coordination framework −based thin films − review of the recent achievements and future Trends DOI

Mohamad Reza Hajizadeh,

Saeede Rezaeifard,

T. Shahrabi

et al.

Journal of Industrial and Engineering Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 1, 2025

Language: Английский

Citations

0
Chiral Cross-Linked Covalent Organic Framework Films for Highly Sensitive Circularly Polarized Luminescence Probing DOI

Shui-Ming Jing,

Zhi‐Gang Gu, Jian Zhang

et al.

Journal of the American Chemical Society, Journal Year: 2025, Volume and Issue: unknown

Published: March 3, 2025

The development of covalent organic framework (COF) films featuring circular polarization luminescence (CPL) probing remains a formidable challenge. Herein, we developed chiral cross-linked COF film to obtain uniform and dense (chirCOFilm) possessing highly sensitive CPL for enantiomers. axial cross-linkers (R-/S-BBNA) are initially introduced into the channels (COFilm/R-BBNA or COFilm/S-BBNA) by vapor-assisted epitaxial method. Then, olefin groups in R-/S-BBNA layers undergo cross-linking reaction under UV irradiation, forming chirCOFilm. obtained chirCOFilms have strong chirality with mirror images, fluorescence discoloration, intense properties. A multitude rich photopatterns chirCOFilm/PDMS flexible prepared taking advantage photochromic properties during illumination, showing potential application advanced anticounterfeiting. More importantly, realize phenethylamine enantiomers at 5% concentration, which can hardly be achieved from their corresponding probing. This study not only provides new strategy preparing using but also opens avenue achieving though CPL.

Language: Английский

Citations

0