Boosted Circularly Polarized Luminescence of a Chiral Metallacage Through Co‐Assembly in Confined Microfluidic Environments DOI
Jianjian Zhao, Kai Zeng, Wei‐Tao Dou

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 35(3)

Published: Sept. 20, 2024

Abstract Chiral metallacages, with their precisely distributed luminescent and chiral units inherent adaptive chirality, represent an ideal framework for developing circularly polarized luminescence (CPL)‐active materials. Despite potential, enhancing the dissymmetry factor ( g lum ) of metallacage‐based materials remains a significant challenge. In this study, useful approach is proposed by co‐assembling donor metallacage Δ 4 / Λ ‐Zn A achiral acceptor Nile red (NiR), achieving efficient energy chirality transfer resulting in enhanced CPL these co‐assemblies. More importantly, microfluidic laminar flow utilized, known providing stable driving forces confined spaces, to achieve marked improvement values co‐assemblies within polymethyl methacrylate (PMMA) films. Computational fluid dynamics (CFD) simulations small‐angle X‐ray scattering (SAXS) experiments confirm that films containing /NiR, prepared via chips, display well‐defined distributions metallacages NiR due controllable assembly process facilitated flow. This work pioneers new methodology significantly enhance materials, opening avenues field photonics.

Language: Английский

Emission Tuning of Nonconventional Luminescent Materials via Cluster Engineering DOI Open Access

Yangyang Wang,

Zuoan Liu,

Jinsong Huang

et al.

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

Published: Jan. 27, 2025

Abstract Nonconventional Luminescent Materials (NLMs) with distinctive optical properties are garnering significant attention. A key challenge in their practical application lies precisely controlling emission behavior, particularly achieving excitation wavelength‐independent emission, which is paramount for accurate chemical sensing. In this study, NLMs (Y1, Y2, Y3, and Y4) synthesized via a click reaction, it found that wavelength‐dependent correlates molecular cluster formation. Rigid Y2) exhibit excitation‐independent dilute solutions nanoscale clusters but become excitation‐dependent at higher concentrations due to larger Flexible (Y3 always show indicating tendency While these high photoluminescence quantum yields (PLQYs) (0.1 mg mL −1 ) up 38.0%, they suffer from aggregation‐caused quenching (ACQ) the solid state (as low as 0.5%). These findings provide insights into NLM luminescence mechanisms offer new approach tuning properties. With excellent properties, facile synthesis, biocompatibility, hold promise bioimaging other applications.

Language: Английский

Citations

3
Novel AIE liquid crystals with high CPL-active bearing multiple dodecyl/cholesterol-decorated R-BINOL-cyanostilbene DOI

Huiyi Feng,

Ming‐Ming Li, Sheng Wang

et al.

Journal of Molecular Structure, Journal Year: 2024, Volume and Issue: 1320, P. 139726 - 139726

Published: Aug. 22, 2024

Language: Английский

Citations

4
Achieving dual-mode long-persistence afterglow through an aromatic furan organic host–guest system DOI Creative Commons
Zheng Gong,

Q. L. Cui,

Xiancheng Nie

et al.

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

Published: Jan. 1, 2025

Pure organic dual-mode long-persistence afterglow with high efficiency room-temperature phosphorescence (RTP) along thermally activated delayed fluorescence (TADF) is realized via an aromatic furan host–guest system.

Language: Английский

Citations

0
A Versatile Nonconventional Luminescent Material Based on Quaternary Ammonium Chitosan for Sodium Chlorite Detection and Cell Imaging DOI Open Access
Chun‐Sheng Jiang,

Chanming Mei,

Linmin Zou

et al.

Macromolecular Chemistry and Physics, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 16, 2025

Abstract Nonconventional luminescent materials (NLMs) lacking extended π‐conjugated systems present a burgeoning field with vast potential applications in cell image, and chemical sensing. This work explores the synthesis, characterization, promising of novel NLM quaternary ammonium chitosan (QCS), bioimaging selective sensing where solutions exhibit remarkable tunability their photophysical properties, influenced by concentration, excitation wavelength, temperature. Notably, applying static pressure to solid sample significantly enhances its luminous efficiency, rising from 2.15% 2.59%, inducing redshift emission, emission shifting 436 452 nm after force action. Furthermore, QCS demonstrates highly specific fluorescent response toward sodium chlorite (NaClO₂) negligible interference common cations anions. The detection limit for NaClO₂ reaches low 0.297 mg L −1 , highlighting practical applications. Additionally, exhibits excellent biocompatibility cytotoxicity, making it compelling candidate cellular imaging.

Language: Английский

Citations

0
Nonconventional Luminescent Polymers with Efficient Emission in Dilute Solutions for Lysosome Targeting and Al3+ Detection DOI
Huajian Song,

Bingli Jiang,

Chanming Mei

et al.

ACS Applied Polymer Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 29, 2025

Language: Английский

Citations

0
Helix-Induced Full-color Circularly Polarized Luminescence Films with Multiple Information Encryption and Multi-stimuli Responsiveness DOI Creative Commons
Shiyi Li, Yang Zong,

Bing-Hao Liu

et al.

Chemical Science, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Full-color CPL composite films prepared using helical polymers, fluorescein and substrates have excellent mechanical processing properties. They exhibit matrix universality, low cost, multi-stimulus responsiveness to UV, heat, acid/base.

Language: Английский

Citations

0
Construction of Carbon Dot-Based Color-Tunable Circularly Polarized Long Afterglow via in Situ Phosphorescence Resonance Energy Transfer DOI
Yijie Wang, Shengju Zhou, Yi Zhao

et al.

Nano Letters, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 28, 2025

Carbon dots (CDs) with circularly polarized long afterglow (CPLA) properties have received increasing attention as a cutting-edge research field. However, because the CDs both and chirality are difficult to prepare color of most phosphorescent is mainly concentrated in short wavelengths, it still formidable challenge explore facile route achieve intrinsic CD-based color-tunable CPLA materials on large scale. Herein, we developed gram-scale synthesis method via simple hydrothermal mixture boric acid, arginine, various fluorescent dyes. The tunable successfully achieved by engineering situ phosphorescence resonance energy transfer (PRET) between formed carbonization arginine some dyes those uncarbonized Finally, applications CD composites multimode advanced anti-counterfeiting information encryption were explored.

Language: Английский

Citations

0
Magnetic Assembly‐Assisted Photoprogrammable Circularly Polarized Luminescence Patterns in Flexible PDMS Films DOI Open Access

Jialei Li,

Zeyu Feng,

Chutian Zhang

et al.

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

Published: March 5, 2025

Abstract Circularly polarized luminescence (CPL) material has been widely exploited in 3D display, information encryption, etc. However, situ generation and dynamic modulation of CPL signals to achieve programmable patterns remains challenging due elusory interactions between fluorescence the chiral microstructures. A novel strategy is proposed combining controllable magnetic field‐assisted assembly photo‐patterning technique form twisted stacking heterostructure, consisting orientated Ag@Fe 3 O 4 nanowires (NWs) polydimethylsiloxane (PDMS) film embedded with achiral dyes polydiacetylene (PDA) chains. In a designed system, PDA chains after photo‐polymerization can serve as polarizer produce linear fluorescence, while aligned NWs on surface PDMS films act phase retarder, favoring generation. Furthermore, characteristics, including wavelength handedness, be switched by thermo‐chromatic transition PDA, thus, micropatterns tailorable distributions achieved. By employing above two orthogonal channels, system possesses brilliant storage capabilities, multistage encryption. This study proposes for fabrication toward multiple

Language: Английский

Citations

0
Emergent Nonreciprocal Dual Circularly Polarized Luminescence from an Iridescent Cellulose Nanocrystalline Film DOI Creative Commons
Xinling Wang,

Daikun Jia,

Zhu Ruixin

et al.

Research Square (Research Square), Journal Year: 2025, Volume and Issue: unknown

Published: March 13, 2025

Abstract Ubiquitous chirality has attracted increasing attention because of its unique scientific significance. Moreover, circularly polarized (CP) absorption and emission, which are the essential components chiral optics, have received considerable interest from researchers. However, very few studies been conducted on materials with nonreciprocal CP emission that emit light opposite handedness their two surfaces. Here, we present a novel film developed cellulose nanocrystalline (CNC). A sustainable CNC twisted right-handedness to inherent left-handed nematic structure is by rotation-induced dynamic self-assembly strategy; this not only ambidextrously reflects left- right-handed but also clearly exhibits tunable Janus chiroptical activity, i.e., anisotropic Both orientation factor reflected wavelength maximum reflectivity significantly depend rotation rate direction. In particular, for first time shows feature luminescence (CPL) achieved through pH-regulated doping cadmium telluride quantum dots. This rare CPL phenomenon broken reciprocity in highly desired next-generation electronics photonics immense potential.

Language: Английский

Citations

0
Multi‐Stimuli‐Responsive Circularly Polarized Luminescence with Handedness Inversion and Near‐Infrared Phosphorescence in Chiral Metal‐Organic Framework Platform for White Light Emission and Information Encryption DOI Creative Commons
Kun Zhang, Dan Ni, Ruoyu Zhang

et al.

Advanced Science, Journal Year: 2025, Volume and Issue: unknown

Published: March 17, 2025

Abstract Preparing multi‐color and multi‐stimuli‐responsive circularly polarized luminescence (CPL) materials understanding the evolution of chirality through visualized mode is still a challenge. Here, an encapsulation engineering approach chiral metal‐organic frameworks (MOFs) proposed to confine guest emitters realize CPL. Based on triplet‐triplet energy transfer (TTET), white CPL near‐infrared room temperature phosphorescence (NIR‐CPRTP) can be obtained by introducing pyrene derivatives. With introduction containing vinylpyrene group, light‐ thermal‐responsive with signal inversion realized reversible [2+2] cycloaddition reaction between ligand triggered visible light/ultraviolet light or heating. Furthermore, excitation‐dependent successfully achieved incorporation excited state intramolecular proton (ESIPT) molecules into nanopores. Importantly, magnification greatly enhanced spatial confinement, accurate host‐guest single crystal structures FLT@DCF‐12 FLT@LCF‐12 provide understand mechanism transfer, amplification responsiveness. White LED multiple information display encryption are further demonstrated. This breakthrough provides new perspective guest‐encapsulated MOFs contributes construction stimuli‐responsive CPL‐active materials.

Language: Английский

Citations

0