Tunable Helix Inversion and Circularly Polarized Luminescence in Cholesteric Liquid Crystal Copolymers with Room-Temperature Phosphorescence DOI
Sha Huang,

Qimei Wu,

Renhua Luo

et al.

Macromolecules, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 24, 2024

Language: Английский

Circularly Polarized Room-Temperature Phosphorescence from Dye-Doped Cholesteric Liquid Crystalline Polymer Networks DOI
Wei Zhang,

Peipei Guan,

Jinghua Zhao

et al.

The Journal of Physical Chemistry Letters, Journal Year: 2025, Volume and Issue: unknown, P. 725 - 730

Published: Jan. 12, 2025

Circularly polarized luminescence (CPL) materials have drawn increasing attention for their potential applications in optical displays and chemo/biosensing. Nevertheless, the construction of circularly room-temperature phosphorescence (CPRTP) is still a significant challenge. In this work, four liquid crystalline polymer network films with RTP properties been fabricated via photopolymerization cholesteric liquid-crystalline mixtures containing different amounts commercially available dyes. The show yellow-green structural color, enhanced RTP, blue CPL, green CPRTP dissymmetry factors up to -0.90, quantum yields 14.8%, emission lifetimes 607 ms. Furthermore, prepared film pattern presents colors reflective, fluorescent, phosphorescent modes. This work not only provides deep understanding CPRTP, but also facile strategy fabricate patterns decoration anticounterfeiting applications.

Language: Английский

Citations

0
Bright red circularly polarized luminescence of liquid crystalline polymer network films DOI Creative Commons
Zonglin Li, Xuan Wang, Wei Zhang

et al.

Next Materials, Journal Year: 2025, Volume and Issue: 6, P. 100489 - 100489

Published: Jan. 1, 2025

Language: Английский

Citations

0
Efficient multicolour and white circularly polarized luminescence from liquid crystalline polymer networks DOI

Fengyun Shi,

Li-Ting Xu,

Jinghua Zhao

et al.

Chemical Communications, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

Twelve liquid crystalline polymer network films were fabricated through photopolymerization of cholesteric liquid-crystalline mixtures containing two aggregation-induced emissive-active luminogens. The exhibit multicolour and white circularly polarized luminescence with dissymmetry factors up to 0.85 fluorescence quantum yields 90%.

Language: Английский

Citations

2
Properties of Antiferroelectric Mixtures Differing in the Amount of Added Racemate DOI Creative Commons
Magdalena Urbańska, D. Dardas

Crystals, Journal Year: 2024, Volume and Issue: 14(2), P. 147 - 147

Published: Jan. 31, 2024

Novel three-component liquid crystalline mixtures composed of chiral and achiral (racemic) materials were designed studied by polarizing optical microscopy, differential scanning calorimetry, UV–VIS spectroscopy. The compositions developed based on the composition a two-component (binary) mixture marked as W-1000 with following phase sequence: Cr ↔ SmCA* SmC* SmA* Iso. This has an antiferroelectric (SmCA*) over wide temperature range exhibits helical pitch inversion in this phase. All newly obtained occur phase, while ferroelectric (SmC*) orthogonal (SmA*) narrow range. new also have very long short

Language: Английский

Citations

1
Tunable Helix Inversion and Circularly Polarized Luminescence in Cholesteric Liquid Crystal Copolymers with Room-Temperature Phosphorescence DOI
Sha Huang,

Qimei Wu,

Renhua Luo

et al.

Macromolecules, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 24, 2024

Language: Английский

Citations

1