Intense Left‐handed Circularly Polarized Luminescence in Chiral Nematic Hydroxypropyl Cellulose Composite Films DOI
Yuxiao Huang, Yi Qian, Yongxin Chang

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(18)

Published: Jan. 25, 2024

Abstract Integrating optically active components into chiral photonic cellulose to fabricate circularly polarized luminescent materials has transformative potential in disease detection, asymmetric reactions, and anticounterfeiting techniques. However, the lack of cellulose‐based left‐handed light (L‐CPL) emissions hampers progress these functionalizations. Here, this work proposes an unprecedented strategy: incorporating a nematic organization hydroxypropyl with robust aggregation‐induced emission luminogens generate intense L‐CPL emission. By utilizing N , ‐dimethylformamide as good solvent for fluorescent matrices, produces right‐handed structure film uniform appearance reflective states. Remarkably, system integrates high factor (0.51) impressive quantum yield (55.8%) one fascinating composite. More meaningfully, approach is versatile, allowing incorporation luminogen derivatives emitting multicolored L‐CPL. These films possess exceptional mechanical flexibility (toughness up 0.9 MJ m −3 ) structural stability even under harsh environmental exposures, making them promising fabrication various products. Additionally, can be cast on fabrics reveal multilevel durable capabilities or used source induce enantioselective photopolymerization, thereby offering significant diverse practical applications.

Language: Английский

Processable circularly polarized luminescence material enables flexible stereoscopic 3D imaging DOI Creative Commons
Mingjiang Zhang, Qi Guo, Zeyi Li

et al.

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

108
Circularly polarized luminescence in chiral orientationally ordered soft matter systems DOI Creative Commons
Jiao Liu,

Zhen‐Peng Song,

Luyao Sun

et al.

Deleted Journal, Journal Year: 2023, Volume and Issue: 1(1)

Published: July 23, 2023

Abstract Circularly polarized luminescent (CPL) materials have received significant attention in the field of fundamental science recently. These offer substantial advancement technological applications, such as optical data storage, displays, and quantum communication. Various strategies been proposed self‐assembled consisting inorganic, organic, hybrid systems, particularly chiral orientationally ordered soft matter systems (e.g., liquid crystals (LCs) LC polymers). However, developing scientific approaches to achieve pronounced steerable circularly light emission remains challenging. Herein, we present a comprehensive review on recent development CPL based LCs, including thermotropic LCs (cholesteric bent‐core LCs), lyotropic (nanocellulose polyacetylene‐based polymers LC‐based polymers, helical nanofibers, network). In addition, mechanisms, design principles, potential applications these are systematically reviewed. This summarizes with prospect latent challenges, which can strengthen our understanding basic principles provide new insight into progress several fields, chemistry, science, optics, electronics, biology.

Language: Английский

Citations

102
Multimodal, Convertible, and Chiral Optical Films for Anti‐Counterfeiting Labels DOI
Fusheng Zhang,

Qiongya Li,

Cunli Wang

et al.

Advanced Functional Materials, Journal Year: 2022, Volume and Issue: 32(33)

Published: June 2, 2022

Abstract Designing a sustainable security model that carries multilevel information with numerous optical states will significantly enhance anti‐counterfeiting abilities to deter counterfeits, ranging from artworks, currencies, and foods medicines, but is enormously challenging. Herein, ambient‐friendly, large‐area, quadruple‐level, chiral luminescent materials are prepared by incorporating lanthanide complexes wrapped in poly(ethylene glycol) matrix into nematic cellulose nanocrystal (CNC) films through co‐assembly strategy. Due the regulation of structures, composite enable full‐color structural colors tunable fluorescence. Notably, brightest fluorescent film radiates right‐handed circularly polarized luminescence an asymmetric factor over −0.36, lifetime up 510 µs, absolute quantum yield 66.7%. More interestingly, fascinating chiro‐optical behavior azure khaki can be controlled polarizing filter at given 0° 90° rotation angles. This system showcases comprehensive properties bright responsive photoluminescence, quadruple convertible color, flexible solvent‐resistant abilities. CNC‐derived photonic material act as multimodal label on banknote, which greatly facilitates its development for practical applications.

Language: Английский

Citations

101
Frontiers in Circularly Polarized Phosphorescent Materials DOI
Xujie Wang, Shuo Ma, Biao Zhao

et al.

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

84
Polymer‐Based Circularly Polarized Luminescent Materials DOI
Hai Zhong, Biao Zhao, Jianping Deng

et al.

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

79
Evolution and fabrication of carbon dot-based room temperature phosphorescence materials DOI Creative Commons
Jiurong Li, Yongzhong Wu, Xiao Gong

et al.

Chemical Science, Journal Year: 2023, Volume and Issue: 14(14), P. 3705 - 3729

Published: Jan. 1, 2023

Carbon dot-based room temperature phosphorescence materials are reported, mainly focusing on the outstanding contributions over years, emission, lifetime, preparation and application.

Language: Английский

Citations

76
Recent Advances of Carbon Dots with Afterglow Emission DOI
Huixian Shi, Yang Wu, Jiahui Xu

et al.

Small, Journal Year: 2023, Volume and Issue: 19(31)

Published: Feb. 21, 2023

Abstract Carbon dots (CDs) have gradually become a new generation of nano‐luminescent materials, which received extensive attention due to excellent optical properties, wide source raw low toxicity, and good biocompatibility. In recent years, there are many reports on the luminescent phenomenon CDs, great progress has been achieved. However,there rarely systematic summaries CDs with persistent luminescence. Here, summary including luminous mechanism, synthetic strategies, property regulation, potential applications, is given. First, brief introduction given development materials. Then, mechanism afterglow from room temperature phosphorescence (RTP), delayed fluorescence (DF), long luminescence (LPL) discussed. Next, constructed methods materials summarized two aspects, matrix‐free self‐protected matrix‐protected CDs. Moreover, regulation properties color, lifetime, efficiency presented. Afterwards, applications such as anti‐counterfeiting, information encryption, sensing, bio‐imaging, multicolor display, LED devices, etc., reviewed. Finally, an outlook proposed.

Language: Английский

Citations

69
Intense Circularly Polarized Fluorescence and Room-Temperature Phosphorescence in Carbon Dots/Chiral Helical Polymer Composite Films DOI
Shuo Ma,

Huanyu Ma,

Kai Yang

et al.

ACS Nano, Journal Year: 2023, Volume and Issue: 17(7), P. 6912 - 6921

Published: March 31, 2023

Chiral carbon dots (C-dots) with a circularly polarized fluorescence (CPF) property have attracted tremendous attention due to their significant applications in chiral optoelectronics and theranostics. However, constructing room-temperature phosphorescent (CPRTP) C-dots remains great challenge. Herein, strategy is established achieve efficient CPF CPRTP emissions C-dots/chiral helical polymer bilayer composite film. Taking advantage of the filter effect polymer, intense large dissymmetric factors up 1.4 × 10-1 1.2 10-2 are respectively obtained, even though there only simple interface contact between layer layer. More importantly, white-color emission multiple information display encryption further realized based on prepared luminescent films.

Language: Английский

Citations

69
Room-temperature phosphorescent materials derived from natural resources DOI
Xiongfei Luo, Bing Tian, Yingxiang Zhai

et al.

Nature Reviews Chemistry, Journal Year: 2023, Volume and Issue: 7(11), P. 800 - 812

Published: Sept. 25, 2023

Language: Английский

Citations

62
Mechanically Responsive Circularly Polarized Luminescence from Cellulose Nanocrystal‐based Shape‐Memory Polymers DOI Creative Commons
Mingcong Xu, Xu Zhen, Miguel A. Soto

et al.

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(29)

Published: April 6, 2023

Stimulus-responsive materials that display circularly polarized luminescence (CPL) have attracted great attention for application in chiral sensors and smart displays. However, due to difficulties the regulation of structures, fine control CPL remains a challenge. Here, it is demonstrated cellulose nanocrystal shape-memory polymers (CNC-SMPs) with luminescent components enable mechanically responsive CPL. The nematic organization CNCs material gives rise photonic bandgap. By manipulating bandgap or wavelengths CNC-SMPs, precise emission varied high dissymmetry factors (glum ) achieved. Specifically, can be switched reversibly by treating CNC-SMPs hot-pressing recovery heating. Pressure-responsive tunable glum values ascribed pressure-responsive bandgaps. Moreover, colorimetric CPL-active patterns are created imprinting desired forms into SMP samples. This study demonstrates novel way fabricate systems using biomaterials.

Language: Английский

Citations

58