PEDOT as an alignment layer and electrode in AFLC devices

Abstract

PEDOT [Poly (3, 4-ethylenedioxythiophene) poly (styrenesulfonate)] is a material typically used organic light emission displays (OLEDs) manufactured as a conductor, or rather, as a hole injector. In this paper, three different issues have been studied: the use of rubbed PEDOT as alignment layer, the resistivity of the applied PEDOT layers, i.e., its potential as a replacement of ITO electrodes, and the induction of asymmetry in the electro-optical response of liquid crystal cells by assembling the display with dissimilar coated aligning surfaces — PEDOT on one side and buffed nylon on the counter electrode

Review—Reorientation of Polymers in an Applied Electric Field for Electrochemical Sensors

“…Hyperbranched polymers (HBP) has been found to be a functional material that can be adapted for optical, electronic, and magnetic applications. 150 Used magnetic fields have been used to manipulate the surface, HBPs have been used in chemisensors for applications in explosive sensors. 151 Another common paradigm are metal or carbon backbones/substrates in which the polymers are grown on-top of.…”

Dispositivos de cristal líquido dopados con nanopartículas = Nanoparticle-doped liquid crystal devices

“…En su lugar se ha utilizado PEDOT:PSS (poli(3,4-etilendioxitiofeno) poli(estirensulfonato)). Es un material semiconductor y ya ha sido utilizado para inducir el alineamiento en células de CL [153].…”

Liquid crystal photonic devices based on conductive polymers = Dispositivos fotónicos de cristal líquido basados en polímeros conductores

“…In our research work, PEDOT-PSS have been used in two different ways. In some cases has been used as alignment layer to achieve electro-optical asymmetric behavior of liquid crystal cells [59]. In other cases the PEDOT-PSS has been used as high resistivity electrode in the design and manufacturing of Liquid crystal lenses.…”

“…The AFLC CS-4001 (Chisso Corporaton, Japan) is employed for 1.5 µm asymmetric cells to study the origin of the asymmetric electro-optic response, which could be caused by the ion accumulation in the alignment layers and the charge transport under an applied voltage step (chapter IV). The study of PEDOT:PSS as an alignment layer and electrode [59] uses the CS-4001 material as both NLC K15 (CB5) (Merck Chemicals, Germany). The NLC cell is used as a test cell.…”