Nano Today, Journal Year: 2024, Volume and Issue: 59, P. 102516 - 102516
Published: Oct. 3, 2024
Language: Английский
Light Science & Applications, Journal Year: 2024, Volume and Issue: 13(1)
Published: June 14, 2024
Abstract Polymer-based circularly polarized luminescence (CPL) materials with the advantage of diversified structure, easy fabrication, high thermal stability, and tunable properties have garnered considerable attention. However, adequate precise tuning over CPL in polymer-based remains challenging due to difficulty regulating chiral structures. Herein, visualized full-color is achieved by doping red, green, blue quantum dots (QDs) into reconfigurable phase liquid crystal elastomers (BPLCEs). In contrast signal observed cholesteric (CLCEs), 3D cubic superstructure BPLCEs induces an opposite signal. Notably, this effect entirely independent photonic bandgaps (PBGs) results a g lum value, even without matching between PBGs emission bands QDs. Meanwhile, lattice structure can be reversibly switched via mechanical stretching force, inducing on-off switching signals, these variations further fixed using dynamic disulfide bonds BPLCEs. Moreover, smart systems for anti-counterfeiting information encryption been demonstrated, suggesting great potential BPLCEs-based active materials.
Language: Английский
Citations
34
Advanced Science, Journal Year: 2024, Volume and Issue: 11(13)
Published: Jan. 24, 2024
Chiral CDots (c-CDots) not only inherit those merits from but also exhibit chiral effects in optical, electric, and bio-properties. Therefore, c-CDots have received significant interest a wide range of research communities including chemistry, physics, biology, device engineers. They already made decent progress terms synthesis, together with the exploration their optical properties applications. In this review, chiroptical chirality origin extinction circular dichroism (ECD) circularly polarized luminescence (CPL) is briefly discussed. Then, synthetic strategies summarized, one-pot post-functionalization ligands, assembly into architectures soft templates. Afterward, on applications are elaborated. Research domains such as drug delivery, bio- or chemical sensing, regulation enzyme-like catalysis, others covered. Finally, perspective challenges associated strategies, understanding chirality, potential provided. This review discusses latest developments helps toward better structure-property relationship along respective
Language: Английский
Citations
24
Cell Reports Physical Science, Journal Year: 2023, Volume and Issue: 4(10), P. 101583 - 101583
Published: Sept. 15, 2023
It is highly demanded that organic functional materials can generate strong and switchable circularly polarized room temperature phosphorescence (CPRTP) be developed. Here, we report a simple effective strategy to achieve mechanical-tunable CPRTP with high luminescence dissymmetric factors (glum) by doping bulky phosphorescent guest, tetra-N-phenylbenzidine (TPB), into reconfigurable cholesteric liquid crystal elastomers (CLCEs). The amount of chain extender plays vital role in determining the lifetime mechanical properties constructed CLCE composite films. Both experimental theoretical results reveal TPB compensates for insufficient rigidity CLCEs, resulting long-afterglow CPRTP. Moreover, glum tuned from 0.93 near zero stretching CLCEs. Combining CLCEs' network remarkable CPRTP, 4D encryption luminescent barcode established, exhibiting great potential information storage these distinct materials.
Language: Английский
Citations
26
The Journal of Physical Chemistry Letters, Journal Year: 2024, Volume and Issue: 15(7), P. 2049 - 2056
Published: Feb. 13, 2024
Circularly polarized luminescence (CPL) materials are the research frontier of chiral luminescence. As a kind luminescent carbon material, dots (CDs) expected to become excellent candidates for construction CPL materials. However, CD-based circularly afterglow emission, especially multicolor and near-infrared remains great challenge due aggregation-caused quenching instability triplet excitons. In this work, we synthesized CDs with aggregation-induced emission using dithiosalicylic acid l/d-arginine as precursors through one-step solvothermal method. Notably, exhibit green delayed fluorescence (DF) in poly(vinyl alcohol) films. Furthermore, is successfully realized via engineering light-harvesting system which DF act energy donors fluorescent dyes colors ranging from yellow near infrared serve acceptors.
Language: Английский
Citations
15
Advanced Materials, Journal Year: 2024, Volume and Issue: 36(21)
Published: Feb. 14, 2024
Abstract Studying the phosphorescent mechanisms of carbon nanostructures synthesized by “bottom‐up” approach is key to understanding structure modulation and interfacial properties nanostructures. In this work, relationships among symmetry precursors in synthesis, structures products, phosphorescence lifetimes graphene quantum dots (GQDs) are studied. The matching formation a D 6h graphene‐like framework considered factor controlling separability sp 2 domains GQDs. As GQDs increases, (14.8–125.5 ms) solid state can be tuned. Machine learning used define degree disorder ( S ) GQD structure, which quantitatively describes different space groups precursors. negative correlation between oscillator strength uncovered. Therefore, recognized as reflective structure. Finally, based on correlations found GQDs, with an ultralong lifetime (28.5 s) obtained. Moreover, visible emission (435–618 nm) synthesized.
Language: Английский
Citations
13
Small, Journal Year: 2024, Volume and Issue: unknown
Published: June 17, 2024
Abstract Circularly polarized room‐temperature phosphorescence (CPRTP) simultaneously featuring multiple colors and extremely high dissymmetry factor ( g lum ) is crucial for increasing the complexity of optical characteristics advancing further development, but such a type CPRTP still unprecedented. The present work develops an effective universal strategy to achieve full‐color with ultra‐high factors in polymeric cholesteric superhelix network, which constructed by liquid crystal polymer chiral helical (CHP). Taking advantage twisting power CHP, resulting network exhibits remarkable activity. Significantly, adopting simple double‐layered architectures consisting film phosphorescent films, blue‐, green‐, yellow‐, red‐CPRTP emissions are successfully obtained, maximum | values up 1.43, 1.39, 1.09 0.84, respectively. Further, multilevel information encryption application demonstrated based on multidimensional architectures. This study offers new insights into fabricating considerable performance advanced photonic applications.
Language: Английский
Citations
13
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
11
Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)
Published: Aug. 21, 2024
Circularly polarized room temperature phosphorescence materials represent a state-of-the-art frontier of optical and exhibit promising applications in various fields. Herein, we fabricate series full-color circularly materials, based on anionic cellulose derivatives achiral luminophores. The ionic substituents promote the spontaneous formation chiral helical structure via electrostatic repulsion effect. There are multiple interactions between doped luminophores, thus chirality is transferred to luminophores non-radiative transition inhibited. resultant can be easily processed into large-scale film flexible 3D objects with repeatable folding curling properties. In addition, their performance shows excitation-dependence, time-dependence, visible-light excitation, multi-responsiveness humidity, as well pH value. Importantly, they recognize many enantiomers an instrument-free visual mode, including amino acids, hydroxyl organic phosphate hydrobenzoin. These results provide insights design advanced which applied multilevel information handling sensing.
Language: Английский
Citations
10
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
9
Nanoscale, Journal Year: 2024, Volume and Issue: 16(14), P. 6853 - 6875
Published: Jan. 1, 2024
Quantum dots (QDs) have emerged as fantastic luminescent nanomaterials with significant potential due to their unique photoluminescence properties.
Language: Английский
Citations
8