Stimuli-responsive circularly polarized luminescent films with tunable emission

Yu, Huli; Zhao, Biao; Guo, Jinbao; Pan, Kai; Deng, Jianping

doi:10.1039/c9tc06105c

Cited by 75 publications

(65 citation statements)

References 48 publications

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“…Reproduced with permission. [ 219 ] Copyright 2019, Royal Society of Chemistry. f) Five‐pointed star pattern of the PD/CNCs film showing angle‐dependent reflection color after being wetted by water.…”

Section: Functional Chiral Liquid Crystal Film Materials Derived From Cncsmentioning

confidence: 99%

Section: Functional Chiral Liquid Crystal Film Materials Derived From Cncsmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Chiral Photonic Liquid Crystal Films Derived from Cellulose Nanocrystals

Duan

Cheng

Wang

et al. 2021

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As a nanoscale renewable resource derived from lignocellulosic materials, cellulose nanocrystals (CNCs) have the features of high purity, high crystallinity, high aspect ratio, high Young's modulus, and large specific surface area. The most interesting trait is that they can form the entire films with bright structural colors through the evaporation‐induced self‐assembly (EISA) process under certain conditions. Structural color originates from micro‐nano structure of CNCs matrixes via the interaction of nanoparticles with light, rather than the absorption and reflection of light from the pigment. CNCs are the new generation of photonic liquid crystal materials of choice due to their simple and convenient preparation processes, environmentally friendly fabrication approaches, and intrinsic chiral nematic structure. Therefore, understanding the forming mechanism of CNCs in nanoarchitectonics is crucial to multiple fields of physics, chemistry, materials science, and engineering application. Herein, a timely summary of the chiral photonic liquid crystal films derived from CNCs is systematically presented. The relationship of CNC, structural color, chiral nematic structure, film performance, and applications of chiral photonic liquid crystal films is discussed. The review article also summarizes the most recent achievements in the field of CNCs‐based photonic functional materials along with the faced challenges.

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Section: Functional Chiral Liquid Crystal Film Materials Derived From Cncsmentioning

confidence: 99%

Section: Functional Chiral Liquid Crystal Film Materials Derived From Cncsmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Chiral Photonic Liquid Crystal Films Derived from Cellulose Nanocrystals

Duan

Cheng

Wang

et al. 2021

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“…Circularly polarized luminescence (CPL) materials have attracted considerable attention because of their enormous potential in 3D displays (Zinna et al, 2015;Song F. et al, 2018;Zhang et al, 2020), quantum information (Wagenknecht et al, 2010), chiroptical sensors (Carr et al, 2012;Guo et al, 2019;Wu et al, 2019), photodetectors (Yang et al, 2013;Chen C. et al, 2019) and anti-counterfeiting security (Yang et al, 2020;Yu et al, 2020). Especially these phosphorescent transition metal complexes, which have remarkable metal-center chirality, tunable emission properties, and unusually high phosphorescence efficiency, are receiving increasing interests in recent years (Han et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Enhanced Circularly Polarized Luminescence Activity in Chiral Platinum(II) Complexes With Bis- or Triphenylphosphine Ligands

et al. 2020

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Distinct circularly polarized luminescence (CPL) activity was observed in chiral (C ∧ N ∧ N)Pt(II) [(C ∧ N ∧ N) = 4,5-pinene-6 ′-phenyl-2,2 ′-bipyridine] complexes with bis-or triphenylphosphine ligands. Compared to the pseudo-square-planar geometry of chiral (C ∧ N ∧ N)Pt(II) complexes with chloride, phenylacetylene (PPV) and 2,6-dimethylphenyl isocyanide (Dmpi) ligands, the coordination configuration around the Pt(II) nucleus of chiral (C ∧ N ∧ N)Pt(II) complexes with bulk phosphine ligands is far more distorted. The geometry is straightforwardly confirmed by X-ray crystallography. The phosphines' participation enhanced the CPL signal of Pt(II) complexes profoundly, with the dissymmetry factor (g lum) up to 10 −3. The distorted structures and enhanced chiroptical signals were further confirmed by time-dependent density functional theory (TD-DFT) calculations.

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Dynamic Chiro‐Optics of Bio‐Inorganic Nanomaterials via Seamless Co‐Assembly of Semiconducting Nanorods and Polysaccharide Nanocrystals

Kang

Biesold

Lee

et al. 2021

Adv Funct Materials

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This study demonstrates a novel chiral organization of multi-materials from semiconducting quantum nanorods (QNRs) co-assembled into chiral nematic polysaccharide (cellulose) nanocrystals for active manipulation of chirooptical light emission properties in elastomeric materials. Highly emissive anisotropic QNRs with dimensions and surface chemistry commensurate with those of biological nanocrystals facilitate seamless co-assembly into an integrated chiral nematic organization due to preferable enthalpic interactions and pairing processes. The resulting freestanding highly emissive bio-inorganic elastomeric materials exhibit vivid iridescence and emission with a strong optical activity that manifests itself in active and tunable chiral photoluminescence with unusually large asymmetry. Intriguingly, large-strain reversible mechanical deformation of physically crosslinked elastomers endows fully reversible alternation of helical structural configuration and corresponding linearly and circularly polarized photoluminescence. This study provides a platform to render dynamic optical functionality with reconfigurable light propagation/emission in bio-inorganic elastomers for futuristic applications in chiral lasing, biosensing, optical gauges, and holographic display.

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Stimuli-responsive circularly polarized luminescent films with tunable emission

Abstract: Circularly polarized luminescence (CPL) of a stimuli-responsive film can be reversibly controlled by manipulating fluorescence and chirality.

Cited by 75 publications

References 48 publications

Chiral Photonic Liquid Crystal Films Derived from Cellulose Nanocrystals

Chiral Photonic Liquid Crystal Films Derived from Cellulose Nanocrystals

Enhanced Circularly Polarized Luminescence Activity in Chiral Platinum(II) Complexes With Bis- or Triphenylphosphine Ligands

Dynamic Chiro‐Optics of Bio‐Inorganic Nanomaterials via Seamless Co‐Assembly of Semiconducting Nanorods and Polysaccharide Nanocrystals

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