A stabilized lamellar liquid crystalline phase with aggregation-induced emission features based on pyrrolopyrrole derivatives

Abstract

A series of novel AIE-active liquid crystals were prepared, which exhibited stabilized and well-organized lamellar structures in the LC phase.

Tunable circularly polarized luminescence from molecular assemblies of chiral AIEgens

“…The 1D WAXD pattern at 210 1C shows a sharp peak at 2y = 2.971 and a high-order diffraction peak at 2y = 5.661. These two diffraction peaks are associated with a smectic phase structure 61,62 with a layer thickness of 3.05 nm ( Fig. 4B and Fig.…”

Photo-tunable epsilon-near-zero behavior in a self-assembled liquid crystal – nanoparticle hybrid material

“…The ratio of their scattering vector values is ~ 1: 2: 3, clearly indicating the presence of a lamellar phase with a layer spacing of 65.7 Å. 31,38,39 Additionally, a weak peak at d= 41.3 Å (labelled 'E' in Figure 2d) is observed in the low angle regime, which is attributed to the interparticle spacing between GNP within each layer. 32 The length of the ALC molecule, as calculated from the Avogadro software (ver.…”

Facile construction of AIE-active pyridinyl-diphenylacrylonitrile derivatives with optical properties finely modulated by D–A regulation

“…[1][2][3][4][5][6][7] In the field of organic light-emitting materials research, exploring novel systems with simple structures and high performance has remained in focus. [8][9][10][11][12][13] Luminogens with AIE features (AIEgens) have attracted extensive attention in the past two decades, owing to their superior photophysical properties compared to the traditional luminescent systems, which exhibit the aggregation-caused quenching (ACQ) effect. [14][15][16][17] The ACQ effect limits the luminous efficiency of light-emitting devices, and causes difficulty in obtaining satisfactory outcome in chemo/biosensing and bioimaging.…”