Side-chain chiral fluorescent liquid crystal polymers with highly efficient circularly polarized luminescence emission in a glassy-state SmC* film

Abstract

How to improve the performance of circularly polarized luminescence (CPL) materials in film state is a significant subject to realize its further application. Herein, we synthesized the side-chain chiral fluorescent...

Ionic liquid crystals based on amino acids and gemini surfactants: tunable phase structure, circularly polarized luminescence and emission color

“…15–17 At present, incorporating aggregation-induced emission luminogens with chiral segments in CPL LCs via covalent bonds results in a series of non-doped CPL LCs with high solid-state efficiency and LC ordering. 18–22 This type of non-doped material effectively avoids the incompatibility and instability of the traditionally doped CPL LCs, benefiting from the lack of additional cholesteric LC medium. Also, it has more abundant phase structures, which is conducive to deeply understand the effect of phase structures on the CPL properties.…”

Synthesis and Phase Behavior of (Semifluorinated Alkane)‐Based Side‐Chain Liquid Crystalline Copolymers

“…Compared with main-chain liquid crystalline polymers DOI: 10.1002/marc.202200266 (MCLCPs), side-chain liquid crystalline polymers (SCLCPs) have significant advantages in terms of chemical structural designability and aggregational structural complexity, which is of great importance in not only fundamental understanding of molecular assembly [7][8][9] but also nanotechnology applications. [10][11][12] Normally, the self-assembly structures of SCLCPs can be adjusted from molecular level by changing LC mesogen, [13,14] flexible spacer, [15,16] or intermolecular interactions. [17,18] While few studies have focused on the design and effect of SCLCP backbones.…”

High-Efficiency Circularly Polarized Luminescence from Twisted Tetraarylethylene-Bridged Polybissilsesquioxane Nanotubes

“…Recently, aggregation-induced emission luminogens (AIEgens), which emit very weakly in dilute solution but become strongly emissive upon aggregation, have been developed into attractive building blocks to construct efficient solid-state CPL materials due to their intense fluorescence in the condensed state. − Through the continuous efforts of researchers, CPL materials based on AIEgens, such as small organic molecules, − polymers, − liquid crystals, − and supramolecular self-assemblies, − have been reported. However, these CPL-active systems usually require tedious synthetic procedure or complicated preparation process, and moreover, the pure organic materials generally display low thermal stabilities.…”