Trends in Chemistry, Journal Year: 2023, Volume and Issue: 5(10), P. 734 - 747
Published: Sept. 15, 2023
Language: Английский
Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)
Published: March 24, 2023
The fabrication of chiral molecules into macroscopic systems has many valuable applications, especially in the fields optical displays, data encryption, information storage, and so on. Here, we design prepare a serious supramolecular glasses (SGs) based on Zn-L-Histidine complexes, via an evaporation-induced self-assembly (EISA) strategy. Metal-ligand interactions between zinc(II) ion L-Histidine endow SGs with interesting circularly polarized afterglow (CPA). Multicolored CPA emissions from blue to red dissymmetry factor as high 9.5 × 10-3 excited-state lifetime up 356.7 ms are achieved under ambient conditions. Therefore, this work not only communicates bulk wide-tunable large circular polarization, but also provides EISA method for metal-organic hybrids toward photonic applications.
Language: Английский
Citations
133
Journal of the American Chemical Society, Journal Year: 2023, Volume and Issue: 145(24), P. 12951 - 12966
Published: June 5, 2023
Circularly polarized luminescence (CPL) is attracting much interest because it can carry extensive optical information. CPL shows left- or right-handedness and be regarded as part of high-level visual perception to supply an extra dimension information with regard regular light. A key meeting the needs for practical applications develop emerging field ultra-dissymmetric CPL. Chiral liquid crystal (LC) assemblies─otherwise referred cholesteric crystals (CLCs)─are essentially organized helical superstructures a highly ordered one-dimensional orientation, distinctly superior supramolecules. CLCs achieve perfect equilibrium molecular short-range interaction long-range orientational order, enabling molecule-scale chirality on pitch observable scale. LC assembly could ideal strategy amplifying chirality, making accessible Herein, we focused some basic but important issues regarding CPL: (i) How created from chiral dyes? (ii) Is luminescent dyes essential factor generation CPL? That is, all emit vice versa? (iii) transferred within intermolecular systems, what principles transmission should followed? Given these queries our work, in this Perspective discuss generation, transmission, modulation assembly, aiming design build up novel chiroptical materials. Recent CPL-active microstructures three-dimensional displays, circularly lasers, asymmetric catalysis are also discussed.
Language: Английский
Citations
111
Science Advances, Journal Year: 2023, Volume and Issue: 9(43)
Published: Oct. 25, 2023
Endowing three-dimensional (3D) displays with flexibility drives innovation in the next-generation wearable and smart electronic technology. Printing circularly polarized luminescence (CPL) materials on stretchable panels gives chance to build desired flexible stereoscopic displays: CPL provides unusual optical rotation characteristics achieve considerable contrast ratio wide viewing angle. However, lack of printable, intense suitable for processing hinders implementation 3D devices. Here, we report a controllable macroscopic production printable CPL-active photonic paints using designed confining helical co-assembly strategy, achieving maximum dissymmetry factor (glum) value 1.6. We print customized graphics meter-long luminous coatings these range substates such as polypropylene, cotton fabric, polyester fabric. then demonstrate textile display panel two printed sets pixel arrays based orthogonal emission, which lays an efficient framework future intelligent clothing.
Language: Английский
Citations
102
Coordination Chemistry Reviews, Journal Year: 2023, Volume and Issue: 493, P. 215287 - 215287
Published: June 15, 2023
Language: Английский
Citations
84
Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(20)
Published: Feb. 20, 2023
Abstract Circularly polarized luminescence (CPL) materials have received increasing attention in recent years. Amongst various CPL materials, circularly phosphorescence (CPP) featuring long life‐time represent a novel research frontier and exhibit promising applications fields. Herein, the state‐of‐the‐art advances of CPP are systematically summarized, as classified into transition metal complexes, organic small molecules, polymers, organic/inorganic hybrid materials. Besides, light‐emitting diodes encryption display also summarized. Furthermore, current challenges future perspectives put forward. It is expected that this review will offer more inspirations for rational design advanced thus further promoting their practical applications.
Language: Английский
Citations
83
Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)
Published: July 28, 2023
Abstract The spin degree of freedom is an important and intrinsic parameter in boosting carrier dynamics surface reaction kinetics photocatalysis. Here we show that chiral structure ZnO can induce selectivity effect to promote photocatalytic performance. crystals synthesized using methionine molecules as symmetry-breaking agents hierarchical chirality. Magnetic circular dichroism spectroscopic magnetic conductive-probe atomic force microscopic measurements demonstrate acts filters induces polarization photoinduced carriers. polarized carriers not only possess the prolonged lifetime, but also increase triplet species instead singlet byproducts during reaction. Accordingly, left- right-hand exhibit 2.0- 1.9-times higher activity O 2 production 2.5- 2.0-times activities contaminant photodegradation, respectively, compared with achiral ZnO. This work provides a feasible strategy manipulate properties metal oxides for electron spin-related redox catalysis.
Language: Английский
Citations
78
Advanced Optical Materials, Journal Year: 2023, Volume and Issue: 11(6)
Published: Jan. 19, 2023
Abstract Chiral materials capable of generating circularly polarized luminescence (CPL) have gained rapidly growing research interest by virtue their peculiar photophysical characteristics and far‐reaching applications. Amongst various CPL materials, polymer‐based constituted an important class owing to abundant types, ease manufacture, high thermal stability, as well as, tunable properties. The present work reviews the latest advances in constructing which are classified based on interaction modes between chiral luminescent components, that is, covalent interaction, non‐covalent without interactions. newly emerging categories nonconventional fluorescence‐based room temperature phosphorescence, with thermally activated delayed fluorescence properties also presented. Typical applications emitters organic light‐emitting diodes, information security encryption, optical sensors further discussed. Additionally, current challenges future perspectives this field summarized. This review article is expected stimulate more unprecedented achievements derived from thus promoting practical
Language: Английский
Citations
77
Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(48)
Published: Aug. 31, 2023
The development of chiral optical active materials with switchable circularly polarized luminescence (CPL) signals remains a challenge. Here an azoarene-based molecular switch, (S, R, S)-switch 1 and (R, R)-switch 2, are designed prepared (R)-binaphthyl azo group as photosensitive moiety two (S)- or fluorescent molecules opposite the same handedness moieties. Both switches exhibit reversible trans/cis isomerization when irradiated by 365 nm UV light 520 green in solvent liquid crystal (LC) media. In contrast control switch is doped into nematic LCs, polarization inversion switching-off CPL achieved resultant helical superstructure upon irradiation light, respectively. Meanwhile, fluorescence intensity system basically unchanged during this switching process. particular, these variations could be recovered after heating, realizing true sense switching. Taking advantage unique switching, proof-of-concept for "a dual-optical information encryption system" based on above material demonstrated.
Language: Английский
Citations
67
Advanced Materials, Journal Year: 2023, Volume and Issue: 36(7)
Published: Aug. 26, 2023
Abstract Long‐lived room‐temperature phosphorescence (RTP) of organic materials holds a significant potential for optical information. Circularly polarized ultralong (CP‐OURTP) with extremely high dissymmetry factor ( g lum ) values is even highly demanded and considerably challenging. Here, an effective strategy introduced to realize CP‐OURTP emission decay time 735 ms value up 1.49, which exceeds two orders magnitude larger than previous records, through system composed RTP polymers chiral helical superstructures. The exhibits excellent stability under multiple cycles photoirradiation thermal treatment, further employed information encryption based on multiplexing. results are anticipated lay the foundation development in advanced photonic applications.
Language: Английский
Citations
52
Chemical Society Reviews, Journal Year: 2023, Volume and Issue: 53(2), P. 793 - 852
Published: Dec. 18, 2023
Synthetic dynamic helical polymers (supramolecular and covalent) foldamers share the helix as a structural motif.
Language: Английский
Citations
52