Polymer-dispersed liquid crystal/layered double hydroxide nanocomposite: A new emerging optical application

A hybrid of hexakis(hexyloxy) triphenylene and synthetic saponite

“…The thermal and luminescence behaviors of HAT6 were successfully tailored by organizing HAT6 in the organically modified clay mineral. The preparation of various clay mineral-nematic liquid crystal nanocomposites has been reported, however, the amount of layered silicates was very low (Kawasumi et al, 1998(Kawasumi et al, , 1999Chashechnikova et al, 2005;Huang et al, 2005;Tsai et al, 2006Tsai et al, , 2010Chepikov et al, 2012;Yaroshchuk et al, 2014). Although, the loading amount of discotic liquid crystal used in the present work was not so large, when compared with those previous reports, the unique nature may lead to a way to elucidate the liquid crystal-clay mineral interactions.…”

“…Attempts have been made to investigate clay mineral (montmorillonite)-nematic liquid crystal nanocomposites for a memory effect (Kawasumi et al, 1998(Kawasumi et al, , 1999Chashechnikova et al, 2005). Dispersion of inorganic nanomaterials such as carbon nanotube, nanosheet of layered silicates, as well as other nanoparticles in liquid crystals (LC) and polymer-dispersed liquid crystals (PDLC) is expected to modify their physical and optical properties for broad prospects of their applications such as electrically switchable windows, light shutters, flexible display, and so on (Huang et al, 2005;Tsai et al, 2006Tsai et al, , 2010Chepikov et al, 2012;Yaroshchuk et al, 2014). To enhance gas diffusion barrier property, liquid crystalline diol hydrochlorides were intercalated into the interlayer space of montmorillonite by ion exchange reaction (Brnardić et al, 2008).…”

Research of Electro-Optics Characteristics of Polymer Dispersed Liquid Crystals Doped with Thulium Oxide Nanoparticles Gd2O3 in UV Based on Numerical Fitting

“…Therefore, polymer dispersed liquid crystals and their high-tech properties have attracted considerable attention for the application. In the high-tech properties, the liquid crystal that is doped with something [1][2][3][4][5][6][7][8] is part of techniques. N. Kamanina et al [9] reported a method to controlled the transmittance of liquid crystals and polymers by doping C60 to PDLC, thus, meeting the desired holographic recording function.…”

“…O.V. Yaroshchuk et al [12] studied the electro-optical characteristic of PDLC doped with oxides nanocrystals, such as SiO2, TiO2 and Sb2O5. However, rarely there are any reports on the properties of polymer adjusted by rare earth oxides.…”

Polymer-dispersed liquid crystal nanocomposites comprising montmorillonite clay modified by conducting pentamerous oligoaniline

“…The electro-optical characteristics are conducive to a variety of PDLC-based applications, such as switchable windows, [6][7][8] display devices, [9][10][11][12][13] and optical devices. [14][15][16][17][18] Recently, materials scientists have begun to investigate to what extent nanoparticles (NPs) can be hybridized with materials, including a metal, 19 a metal oxide, [20][21][22] a semiconductor, 23 and an inorganic layered material, [24][25][26][27] in PDLC films to affect the optoelectronic properties. The research goal of these investigations is primarily to improve the contrast ratio and reduce the driving voltage for optimization in industrial applications.…”