Circularly polarized luminescence in chiral nematic liquid crystals based on photochromic molecules DOI Open Access
Dongxue Han, Guang Chen, Liang Peng

и другие.

Chemical Synthesis, Год журнала: 2024, Номер 4(4)

Опубликована: Ноя. 19, 2024

Circularly polarized luminescence (CPL) has emerged as a focal point in luminescent materials research, reflecting growing field of study. Responding to the demand for practical applications across diverse sectors, there is critical need CPL with high dissymmetry factors (g lum) and adjustable optical performance, driving development novel methodological approaches. Chiral nematic liquid crystals (N*-LCs) have attracted significant attention promising candidates producing high-performance due their ability exhibit enhanced g lum modulate circularly light. This review comprehensively presents stimuli-responsive properties, utilizing N*-LCs chiral templates doped various photochromic compounds, particularly azobenzene, spiropyran (SP), diarylethene overcrowded alkene. By elucidating dynamic interplay between molecular structure, supramolecular organization, response, it offers profound understanding behaviors. Additionally, also explores multifaceted materials, spanning advanced display technologies, data storage, beyond. examining avenues leveraging unique highlights pivotal role innovation photonic applications, facilitating transformative advancements field.

Язык: Английский

Synthesis and properties of chiral liquid crystal copolymers with tunable circularly polarized luminescence DOI
Sha Huang,

Pengfei Tan,

Renhua Luo

и другие.

European Polymer Journal, Год журнала: 2024, Номер 219, С. 113398 - 113398

Опубликована: Авг. 19, 2024

Язык: Английский

Процитировано

1

Enhanced Circularly Polarized Luminescence Modulation Using Dichroic Conjugated Polymer in Cholesteric Liquid Crystals DOI Open Access
Yihan Chen, Lulu Li, Kun Yao

и другие.

Advanced Optical Materials, Год журнала: 2024, Номер unknown

Опубликована: Дек. 25, 2024

Abstract Negative dichroic dyes are crucial for enhancing the brightness of liquid crystal displays (LCDs) and modulating circularly polarized luminescence (CPL) in cholesteric crystals (CLCs) through supramolecular co‐assembly. However, majority fluorescent molecules exhibit positive dichroism, there is a limited understanding designing negative molecules. In this paper, novel design principle proposed to construct polymer by introducing space charge transfer (TSCT) side chain structure backbone. Specifically, two conjugated polymers (P1, P2) synthesized using Suzuki coupling reaction donor‐acceptor (D‐A) type monomers (V‐type M1 I‐type M2) with fluorenyl monomer. P1 exhibits its orientational order parameter (S F ) up S FP1 = –0.18. On contrary, P2 dichroism ( FP2 + 0.27). This variation arises from differing orientations rigidly functional chains FM1 0.07; FM2 0.31), which affect alignment (parallel or perpendicular) backbone toward CLCs phenomenon facilitates controllable precisely modulates handedness CPL signals, thereby facilitating successful implementation multidimensional information encryption systems CLCs.

Язык: Английский

Процитировано

1

圆偏振发光材料的手性反转 DOI Creative Commons

Jialin Bian,

Kuo Fu,

Guofeng Liu

и другие.

Scientia Sinica Chimica, Год журнала: 2024, Номер 54(8), С. 1233 - 1249

Опубликована: Май 27, 2024

Circularly polarized luminescent (CPL) materials have attracted widespread attention due to their potential applications in various fields such as 3D display, photoelectric devices, chiral sensors, and asymmetric synthesis.Constructing high-performance CPL with tunable handedness direction is essential for fulfilling the practical application demands diverse domains.This review summarizes research progress on achieving chirality inversion of through stimuli, including light, temperature, solvent, pH ions.It further briefly discusses inversion, well remaining challenges future trends this area.

Язык: Английский

Процитировано

0

基于光调控胆甾相液晶的圆偏振发光材料的研究进展 DOI Creative Commons

Wenxin Kang,

Tianqi Ren,

Xianyu Meng

и другие.

Scientia Sinica Chimica, Год журнала: 2024, Номер 54(8), С. 1321 - 1328

Опубликована: Июнь 19, 2024

圆偏振发光(CPL)在手性荧光探针,圆偏振有机发光二极管,和光学防伪等领域具有潜在应用,为了扩大CPL材料的应用范围,研究人员开始关注刺激响应型CPL活性材料。胆甾相液晶(CLC)因其高度有序的手性环境以及优异的可调性已成为刺激响应CPL活性材料的理想选择。目前,基于CLC的光响应CPL材料已得到广泛开发,这些材料通常能在多组分系统中实现CPL信号响应。本综述重点关注CLC中光调控CPL的研究进展,总结了CPL调控的三种策略:(1)利用光驱动过程光开关分子的手性或螺旋变化调控CLC的CPL信号;(2)利用手性光开关与手性掺杂剂间手性竞争关系调控CLC的CPL信号;(3)利用光驱动非手性二向色性染料有序参数值变化调控CPL信号。这篇综述有望为基于光响应CLC的CPL调控提供重要的参考和指导,以推动其在更广泛领域的应用。

Процитировано

0

Circularly polarized luminescence in chiral nematic liquid crystals based on photochromic molecules DOI Open Access
Dongxue Han, Guang Chen, Liang Peng

и другие.

Chemical Synthesis, Год журнала: 2024, Номер 4(4)

Опубликована: Ноя. 19, 2024

Circularly polarized luminescence (CPL) has emerged as a focal point in luminescent materials research, reflecting growing field of study. Responding to the demand for practical applications across diverse sectors, there is critical need CPL with high dissymmetry factors (g lum) and adjustable optical performance, driving development novel methodological approaches. Chiral nematic liquid crystals (N*-LCs) have attracted significant attention promising candidates producing high-performance due their ability exhibit enhanced g lum modulate circularly light. This review comprehensively presents stimuli-responsive properties, utilizing N*-LCs chiral templates doped various photochromic compounds, particularly azobenzene, spiropyran (SP), diarylethene overcrowded alkene. By elucidating dynamic interplay between molecular structure, supramolecular organization, response, it offers profound understanding behaviors. Additionally, also explores multifaceted materials, spanning advanced display technologies, data storage, beyond. examining avenues leveraging unique highlights pivotal role innovation photonic applications, facilitating transformative advancements field.

Язык: Английский

Процитировано

0