Abstract

A novel type of polyimide-free liquid crystal (LC) device has been fabricated using layer-by-layer (LBL) deposition of carbon nanotube-based electrodes and in situ formation of self-aligning amphiphilic graft copolymer layer. The LBL-processed organic electrodes showed high transparency comparable to indium tin oxide (ITO) and the self-aligned layer of amphiphilic graft copolymer on organic electrodes provided a stable vertical alignment of LCs. Moreover, the proposed LC device resulted in voltage-dependent driving characteristics suitable for display application. This functional organic electrode layer has potential for application in a flexible display to replace conventional ITO electrode and polyimide alignment layer.

摘要

使用基于碳纳米管的电极的逐层（LBL）沉积和自对准两亲接枝共聚物层的原位形成制造了一种新型的无聚酰亚胺液晶（LC）器件。LBL 处理的有机电极显示出与氧化铟锡 (ITO) 相当的高透明度，并且有机电极上的两亲接枝共聚物的自对准层提供了稳定的 LC 垂直排列。此外，所提出的 LC 器件产生了适用于显示应用的电压相关驱动特性。这种功能性有机电极层具有在柔性显示器中应用的潜力，以取代传统的 ITO 电极和聚酰亚胺取向层。