Hydration‐Facilitated Fine‐Tuning of the AIE Amphiphile Color and Application as Erasable Materials with Hot/Cold Dual Writing Modes

Jin, Hongjun; Liu, Hongpeng; Zhu, Zhiyang; Huang, Jianbin; Xiao, Yunlong; Yan, Yun

doi:10.1002/ange.201911845

Cited by 3 publications

(4 citation statements)

References 44 publications

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“…In 2001, Tang and coworkers 22 discovered a special kind of molecule displaying an aggregation-induced emission (AIE) phenomenon, which meant molecules were nonemissive at the monomeric state while exhibiting bright fluorescence at the aggregation state. [23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41][42] Electron-donating (D) and -accepting (A) units are often embedded into AIE-gens for triggering polarityresponsive emission changes assisted by the twisted intramolecular charge transfer (TICT) effect. 43,44 On the basis of this special effect, we prepared a kind of AIE hydrogel, which then displayed continuous gradient fluorescence after being immersed in organic solvents based on a polar-responsive AIE-gen (Scheme 1A, right).…”

Section: Introductionmentioning

confidence: 99%

“…In 2001, Tang and coworkers 22 discovered a special kind of molecule displaying an aggregation‐induced emission (AIE) phenomenon, which meant molecules were nonemissive at the monomeric state while exhibiting bright fluorescence at the aggregation state 23–42 . Electron‐donating (D) and ‐accepting (A) units are often embedded into AIE‐gens for triggering polarity‐responsive emission changes assisted by the twisted intramolecular charge transfer (TICT) effect 43,44 .…”

Section: Introductionmentioning

confidence: 99%

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AIE gel exhibiting continuous gradient fluorescence based on a polar‐responsive AIE‐gen

Zhang

Liu

et al. 2023

SmartMat

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Traditional multicolor fluorescent hydrogels are generated through the assembly of discrete fluorescent hydrogels, which is not a complete integration much distinct from living organisms. On the basis of aggregation‐induced emission (AIE), a special solvent polar‐responsive AIE molecule possessing a twisted intramolecular charge transfer (TICT) effect was noticed. By incorporating it into the gel network, an AIE gel that displays continuous gradient fluorescence was fabricated. First, hydrogel A containing the solvent polar‐responsive AIE‐gen was prepared to show orange fluorescence. After soaking in the organic solvents, the fluorescence color transition of hydrogel A ranging from orange to green occurred when being immersed in high‐polarity organic solvents ascribed to the embedded AIE‐gen owning TICT effect. Then, hydrogel A was successively lifted up from organic solvents. Due to the different immersion time of each section for the hydrogel, the polarity difference occurred. Then, the produced gel B showed continuous gradient fluorescence ranging from orange to green under the irradiation of UV light.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

AIE gel exhibiting continuous gradient fluorescence based on a polar‐responsive AIE‐gen

Zhang

Liu

et al. 2023

SmartMat

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“…Several types of light-scattering nanocomponents, including inorganic nanomaterials (e.g., alumina nanowires and SiO 2 ), − cellulose nanofibers, , and organic materials have already been developed for producing haze. Meanwhile, carbon dots and organic/inorganic chromophores have also been developed as film-based sources of luminescence. − Although much progress has been achieved, some challenges remain. For example, few nanocomposites can simultaneously endow the film with the properties of both haze and luminescence.…”

Section: Introductionmentioning

confidence: 99%

Lignin Nanoparticles: Promising Sustainable Building Blocks of Photoluminescent and Haze Films for Improving Efficiency of Solar Cells

Wang

Guo

et al. 2021

ACS Appl. Mater. Interfaces

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Films with the capacity for photoluminescence and haze, which can convert UV to visible light and enhance light management, are of great importance for optoelectronic devices. Here, taking advantage of the inherent fluorescence and self-assembly properties of lignin, we have developed a sustainable lignin-derived multifunctional dopant (L-MS-NPs) for fabricating optical films with haze, fluorescence, and room-temperature phosphorescence (RTP) together with poly(vinyl alcohol) (PVA). The optical films are used to improve the light-harvesting efficiency of solar cells. Specifically, attributed to the robust morphology in the film matrix, L-MS-NPs cause a rough morphology in the surface of an L-MS-NPs/PVA composite film, which eventually triggers the great optical haze. Additionally, L-MS-NPs inherit fluorescence properties from lignin and show fluorescence emission when embed in the film matrix. Moreover, the PVA film matrix can stabilize the excited triplet state, which finally induces RTP of L-MS-NPs. The combined haze, fluorescence, and RTP properties of the L-MS-NPs/PVA composite film enhances the power conversion efficiency (PCE) of dye-sensitized solar cells from ∼3.9 to ∼4.1%.

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“…Therefore, the hydration method is expected to become a useful strategy to modulate emission color of inorganic single crystals [12][13][14] color would change with the containing solvents [13]. To expand solvation-dependent emission to organic fluorophore, Yan et al synthesized amphiphilic organic molecules which coordinate to metal ions with different hydration ability [15]. In recent years, researchers have sought to involve solvent molecules in the molecular packing structures of organic crystals to tune the emission color [16][17][18].…”

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confidence: 99%

CHCl3-Dependent Emission Color and Jumping Behavior of Cyclic Chalcone Single Crystals: The Halogen Bond Network Effect

et al. 2021

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As a conventional strategy to modulate the structure and properties of inorganic single crystals, hydration/solvation is rarely found to function in pure organic single crystal. Herein, we report chalcone single crystals with CHCl3-dependent emission color and jumping behavior. Two crystals: a pure crystal phase (1) with green-yellow emission and a CHCl3-containing co-crystal phase (1•2CHCl3) with orange-red emission were constructed by fine-controlling the crystallization conditions. The special halogen bond network in the crystal packing structure effectively narrows the bandgap and thereby redshift the emission of 1•2CHCl3. 1•2CHCl3 would revert to 1 together with emission color change when losing CHCl3. These findings are similar to the effect of H2O in hydrated inorganic crystals. Notably, owing to a special pre-organized “molecular pair” structure for [2 + 2] cycloaddition, the pure crystal phase 1 exhibits violently photo-induced jumping phenomenon, indicating large potentials in intelligent devices. This work would overturn the previous perception that the structurally simple solvent molecules without conjugation cannot greatly affect the structure and properties of pure organic single crystals and provide a new strategy to construct multi-colored organic fluorescent crystals.

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Hydration‐Facilitated Fine‐Tuning of the AIE Amphiphile Color and Application as Erasable Materials with Hot/Cold Dual Writing Modes

Cited by 3 publications

References 44 publications

AIE gel exhibiting continuous gradient fluorescence based on a polar‐responsive AIE‐gen

AIE gel exhibiting continuous gradient fluorescence based on a polar‐responsive AIE‐gen

Lignin Nanoparticles: Promising Sustainable Building Blocks of Photoluminescent and Haze Films for Improving Efficiency of Solar Cells

CHCl3-Dependent Emission Color and Jumping Behavior of Cyclic Chalcone Single Crystals: The Halogen Bond Network Effect

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