Materials Today Chemistry, Journal Year: 2024, Volume and Issue: 42, P. 102360 - 102360
Published: Oct. 20, 2024
Language: Английский
Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown
Published: Aug. 21, 2024
Abstract Structural color coatings with brilliant is important in practical applications, such as aesthetic decoration, bionic skins, colorimetric sensors, and other color‐related fields. However, the intrinsic conflict between fast self‐assembly bright structural hinders their widespread applications. Here, cholesteric liquid crystal elastomer (CLCE) mechanochromic response are developed by spraying (CLC) paints followed evaporation‐induced (EISA) photocuring. The Marangoni flow within paints, which drives orientation of molecules along track EISA process, found to be crucial for achieving both rapid time (60 s) high reflectivity (42%). as‐prepared CLCE present uniform colors, circularly polarized reflection, response. Several proofofconcept applications also demonstrated, including patterned on flat substrates, fully covered 3D objects, non‐spectral colors via additive mixing method. research disclosed herein provides unprecedented levels efficiency reliability preparing coatings.
Language: Английский
Citations
5
Light Science & Applications, Journal Year: 2024, Volume and Issue: 13(1)
Published: Aug. 23, 2024
Abstract Chiral liquid crystal elastomers, as soft photonic materials, enable dynamic omnidirectional tuning of circularly polarized reflection wavelength and function an effective medium for full-color luminescence, showing promise advanced applications.
Language: Английский
Citations
5
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
Advanced Optical Materials, Journal Year: 2024, Volume and Issue: unknown
Published: Oct. 9, 2024
Abstract Inspired by the color‐changing abilities of natural organisms, this research focuses on design and fabrication mechanochromic liquid crystal photonic thin films with periodic self‐assembly structures. Benefiting from its unique 3D self‐assembled structure a body‐centered cubic lattice, BP I film exhibits excellent mechanical properties, characterized superior elasticity toughness due to presence rigid flexible microdomains suitable dislocation line volumes. As strain increases, structural color demonstrates repeatable rapid shift red blue, covering entire visible light spectrum high reflectivity. The incorporation fluorescent molecules further enhances properties endowing circularly polarized luminescence under UV irradiation. Utilizing different dyes as inks, arbitrary patterned writing can be performed BPI film, enabling specific information hiding encryption. prepared label environmental stability, presenting promising applications in storage, anti‐counterfeiting, displays. study may contribute deeper understanding relationship between microstructure, deformation, optical potentially advancing development innovative responsive materials multifunctional devices.
Language: Английский
Citations
4
Advanced Materials, Journal Year: 2024, Volume and Issue: unknown
Published: Nov. 17, 2024
Due to the low formation enthalpy and high defect tolerance, in situ fabricated perovskite quantum dots offer advantages such as easy fabrication superior optical properties. This paper reviews methodologies, functional materials of dots, including polymer nanocomposites, doped glasses, mesoporous dots-embedded single crystals, electroluminescent films. study further highlights industrial breakthroughs especially scale-up stability enhancement. Finally, fundamental challenges developing for applications are discussed, with a focus on photoinduced degradation under high-intensity light irradiation, ion migration electrical bias thermal quenching at temperature.
Language: Английский
Citations
4
Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: unknown
Published: Nov. 28, 2024
Constructing circularly polarized luminescence (CPL) materials that exhibit dynamic handedness inversion and emissive color modulation for multimodal information encryption presents both a significant challenge compelling opportunity. Here, we have developed pyridinethiazole acrylonitrile-cholesterol derivative (Z-PTC) exhibits wavelength-dependent photoisomerization photocyclization, enabling in supramolecular assemblies with decent CPL activity. Coordination Ag
Language: Английский
Citations
4
Advanced Physics Research, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 7, 2025
Abstract Chiral hybrid organic‐inorganic perovskites (HOIPs) have emerged as promising materials for optoelectronic and spintronic applications, leveraging unique properties such circularly polarized luminescence (CPL), nonlinear optical (NLO) emission, chiral‐induced spin selectivity (CISS). However, challenges remain in stabilizing these under environmental stresses precisely controlling chirality scalable use. This review summarizes five main strategies to induce HOIPs, i.e., direct incorporation of chiral cations, surface modification with ligands, ion doping, template‐induced chirality, metasurfaces. Each approach offers distinct advantages optimizing CPL efficiency device stability, paving the way next‐generation applications detectors, information encryption, devices, etc.
Language: Английский
Citations
0
Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 16, 2025
Abstract Blue phase liquid crystals (BPLCs) are regarded as self‐organized 3D chiral soft photonic with iridescent, tunable, and circularly polarized structural colors. However, arbitrary patterning of BPLCs satisfactory microscopic self‐assembly remains challenging. Here, the direct ink writing using BPLC precursor inks is reported. The dynamic evolution a droplet cooling from an isotropic state to blue studied prepare mono‐domain high reflectivity. diverse macroscopic design patterns can be obtained by printing on different substrates, controlled enables color brightness, reflection, sufficient thermal stability after photo‐polymerization. Interestingly, angle‐dependent optical properties printed lines faces found due nanostructures BPLCs. research disclosed here provides unprecedented controllability in fabrication patterned extends their applications displays, devices, optics, photonics.
Language: Английский
Citations
0
Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160258 - 160258
Published: Feb. 1, 2025
Language: Английский
Citations
0
Chinese Optics Letters, Journal Year: 2025, Volume and Issue: 23(1), P. 011602 - 011602
Published: Jan. 1, 2025
Language: Английский
Citations
0