New Concept on the Generation and Regulation of Circularly Polarized Luminescence DOI Open Access
Gong Zhang, Wei Zhang

Chemistry - A European Journal, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 12, 2024

Circularly polarized luminescence (CPL) has attracted tremendous attention because of its significant application prospect across multiple fields three-dimensional display, data storage, and information encryption. Chirality are two necessary prerequisites for the generation CPL. However, controlling these factors simultaneously in a rational manner remains challenge. Herein, we highlight recent advances on regulation CPL through new concept, named matching rules, mainly including fluorescence-selective absorption, circularly fluorescence energy transfer, chiral communication between excited state ground state. An important commonality among strategies is that they need good overlap corresponding spectra luminescent part (fluorescence, phosphorescence, or CPL) (organic, inorganic, organic-inorganic hybrid materials), which can be contactless separate. Different from most previous studies, no covalent noncovalent interactions parts required, makes them more facile convenient. Finally, summarize main advantages current challenges. We expect this concept to offer insightful novel understanding inspiration regulation.

Language: Английский

Tuning Circularly Polarized Afterglow Color via Modulation of Energy and Chirality Transfer in Co‐Doped Films DOI
Lingzhong Wei, Song Guo, Beibei Zhang

et al.

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

Published: July 21, 2024

Abstract Circularly polarized luminescence (CPL) materials offer exciting potential due to their unique light properties. However, controlling the color of afterglow emission, a key feature for many applications remains challenge. Here, co‐doping strategy is presented precise control multicolor CPL in films. This approach utilizes chiral naphthylphosphoric acid derivatives as energy and chirality transfer donors, commonly used fluorescent dye rhodamine B (RB) PVA are selected acceptor polymeric matrix, respectively. Remarkably, co‐doped films exhibit ultra‐long green circular polarization phosphorescence lasting several seconds with high efficiency (14.23%), lifetime (1025.5 ms), dissymmetry factor (8.44 × 10 −3 ). Crucially, by adjusting content, it can precisely tune phosphorescence‐to‐fluorescence ratio achieve afterglow. stems from combination Förster resonance transfer, color‐mixing effects. Furthermore, this significantly improves asymmetry an order magnitude (5.17 −2 It anticipated that straightforward regulating will provide invaluable insights future design highly efficient innovative materials.

Language: Английский

Citations

15
A Dynamic H‐Bonding Network Enables Stimuli‐Responsive Color‐Tunable Chiral Afterglow Polymer for 4D Encryption DOI Open Access

Guangyao Guo,

Huanhuan Li,

Yingmeng Yan

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(47)

Published: Oct. 6, 2024

Abstract The development of stimuli‐responsive and color‐tunable chiral organic afterglow materials has attracted great attention but remains a daunting challenge. Here, simple yet effective strategy through the construction dynamic H‐bonding network is proposed to explore multi‐color by doping self‐designed phosphorescent chromophore into polyvinyl alcohol matrix. A deep blue system with lifetime up 3.35 s, quantum yield 25.0%, luminescent dissymmetry factor 0.05 achieved reversible formation breakdown upon thermal‐heating water‐fumigating. Moreover, can be obtained energy transfer, allowing establishment information displays high‐level 4D encryption. This work not only offers facile platform develop advanced also opens new avenue for developing next‐generation optical technology enhanced functionality responsiveness.

Language: Английский

Citations

11
Circularly Polarized Phosphorescence Energy Transfer Combined with Chirality‐Selective Absorption for Modulating Full‐Color and White Circularly Polarized Long Afterglow DOI
Kai Yang, Run Zhang, Yanze Liu

et al.

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

Published: July 11, 2024

Circularly polarized long afterglow (CPLA) attracts great interests in multi-disciplinary fields with significant potentials optical multiplexing applications, but achieving full-color and white CPLA is still challenging. The present contribution reports the first success utilizing circularly phosphorescence energy transfer (CPP-ET) combined chirality-selective absorption (CSA) to construct materials. Blue luminescence dissymmetry factor (g

Language: Английский

Citations

10
Nonaromatic Lysine Supramolecular Nanotube Assemblies with Excitation-Dependent Circularly Polarized Phosphorescence DOI

Wenchao Hao,

Yuan Wang, Minghua Liu

et al.

ACS Materials Letters, Journal Year: 2024, Volume and Issue: 6(8), P. 3487 - 3495

Published: July 5, 2024

Nonaromatic phosphorescence has burgeoned into a new frontier of luminescent materials. Herein, nonaromatic chiral lysine amphiphiles with long alkyl chains connected via urea or amide bonds are designed, and their self-assembly as well chiroptical properties investigated. The C18 derivative bond self-assembles nanotube shows an excitation-dependent (ExD) circularly polarized (CPP). Under varied excitations, the CPP can be tuned from violet to blue, lifetime up 32.0 ms, quantum yield 63.0%, dissymmetry factor 5.4 × 10–3. In comparison, bonded microfiber showing conventional CPP. It is suggested that multiple noncovalent clustering amphiphilic molecules responsible for Moreover, when fluorescent dyes doped, luminescence longer obtained. work demonstrates self-assembled gel materials show ExD-CPP, which opens scope

Language: Английский

Citations

5
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
Near-infrared circularly polarized organic room temperature phosphorescence based on a chiral host–guest doping strategy DOI
Junming Xia,

Chenchen Xiong,

Songmin Mo

et al.

Journal of Materials Chemistry C, Journal Year: 2024, Volume and Issue: 12(26), P. 9578 - 9585

Published: Jan. 1, 2024

Near-infrared circularly polarized organic room temperature phosphorescence is achieved by doping a naphthalimide derivative guest into tartaric acid host.

Language: Английский

Citations

4
Universal in situ supersaturated crystallization enables 3D printable afterglow hydrogel DOI Creative Commons
Shuman Zhang,

Yunliang Ji,

Shiyi Chen

et al.

npj Flexible Electronics, Journal Year: 2025, Volume and Issue: 9(1)

Published: Feb. 1, 2025

Stretchable afterglow materials have garnered widespread attention owing to their unique combination of optical properties and mechanical flexibility. However, achieving a crystal environment suppress the non-radiative transition triplet excitons poses challenge in constructing stretchable materials. Herein, we utilize an situ supersaturated crystallization strategy form microcrystals within hydrogel matrix. This approach enables emission with lifetime 695 ms while maintaining high stretchability tensile stress surpassing 398 kPa, extensibility over 400% water content 65.21%. Moreover, universal allows for conferring tunable performance. Successful demonstrations 3D printing anti-counterfeiting purposes showcase potential advanced applications printable hydrogels. investigation provides guidelines generally designing efficient hydrogels addresses inherent contradiction between flexibility rigid

Language: Английский

Citations

0
Circularly Polarized Room-Temperature Phosphorescence from Marine Polysaccharide-Based Helical Assemblies DOI
Mingjie Wang, Zhaocun Shen, Fang Zhang

et al.

ACS Materials Letters, Journal Year: 2025, Volume and Issue: unknown, P. 1171 - 1178

Published: Feb. 24, 2025

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
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