Upconversion circularly polarized luminescence with dissymmetry factor up to 1.80 from flexible Perovskite-Liquid crystal membranes

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 162515 - 162515

Опубликована: Апрель 1, 2025

Язык: Английский

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Circularly Polarized Luminescence from Decamethylcucurbit[5]uril-triggered Chiral Supramolecular Hydrogels

Chemical Communications, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

In the presence of macrocyclic host decamethylcucurbit[5]uril, ternary supramolecular hydrogel materials were achieved, which produced white CPL light via FRET and chirality transfer in systems.

Язык: Английский

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Controlled Synthesis, Chiral Assembly, and Circularly Polarized Luminescence of Poly(Phenyl Isocyanide)‐Block‐Polyfluorene Copolymers

Macromolecular Rapid Communications, Год журнала: 2023, Номер 44(15)

Опубликована: Май 10, 2023

In this work, π-conjugated block copolymers consisting of poly(phenyl isocyanide) (PPI) and polyfluorene (PF) segments are facilely prepared by one-pot sequential polymerization phenyl isocyanide (monomer 1) 7-bromo-9,9-dioctylfluorene-2-boronic acid pinacol ester 2). The Pd(II)-terminated PPI is first via polymerizing monomer 1 catalyzed with alkyne-Pd(II) complex then utilized to initiate the controlled Suzuki cross-coupling 2, yielding various PPI-b-PF possessing molar mass narrow dispersity. Owing helical conformation segment structure PF segment, present distinctive optical property fascinating chiral self-assembly behavior. During process, chirality transfer from supramolecular aggregates nanofibers occurs afford optically active high activity. Furthermore, self-assembled exhibit excellent circularly polarized luminescence performance.

Язык: Английский

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Clustering‐Triggered Emission Liquid Crystalline Polymer Bearing Cholesterol: Tunable Circularly Polarized Luminescence and Room‐Temperature Phosphorescence

Macromolecular Rapid Communications, Год журнала: 2023, Номер 44(24)

Опубликована: Окт. 4, 2023

Circularly polarized luminescence (CPL) materials with clustering-triggered emission (CTE) characteristic have gradually attracted attention for their unique photophysical properties. However, the majority of reported clusteroluminogens lack chirality and exhibit heterogeneity, making it challenging to achieve a well-defined helical structure necessary efficient CPL high dissymmetry factor (glum ). In this paper, chiral liquid crystals are constructed obtain CTE-based glum values. Side chain crystal polymer PM6Chol bearing cholesterol designed synthesized. PM6Chol-coated film thermal-treated also successfully prepared by different film-forming methods. Both films inherit CTE show excitation wavelength-dependent luminescent behavior. two phase structures, being bilayer smectic C an achiral A phase. Attributed arrangement cholesterol, emits values up 1.0 × 10-1 . For film, no signal is detected due absence structure. shows obvious room-temperature phosphorescence 2.0 s afterglow 23.9 ms lifetime.

Язык: Английский

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Breaking the boundaries of biological penetration depth: X-ray luminescence in light theranostics

Science China Chemistry, Год журнала: 2024, Номер 67(4), С. 1056 - 1059

Опубликована: Фев. 21, 2024

Язык: Английский

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