Polymer-dispersed liquid crystal devices with graphene electrodes
Polymer-dispersed liquid crystal devices with graphene electrodes
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DOI：
10.1364/oe.23.032149
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发表时间：
2015-12-14
期刊：
影响因子：
3.8
通讯作者：
Noh, Hee Yeon
中科院分区：
文献类型：
--
作者：
Chung, Seok-Hwan;Noh, Hee Yeon
尽管聚合物分散液晶(PDLC)器件在智能窗中具有相当大的潜在应用前景，但这些器件中传统使用的ITO电极的高昂材料成本阻碍了其广泛应用。在这项工作中，我们探索了石墨烯电极作为潜在的替代ITO电极在PDLC器件中的应用。与采用相同的化学配方和聚合工艺制备的ITO电极的PDLC器件相比，采用石墨烯电极制备的PDLC器件具有更高的对比度和更快的响应速度。然而，它们也表现出较高的工作电压和雾度，这主要是由于最初转移到透明衬底上的大面积石墨烯片固有的大电阻和不均匀。与使用ITO电极的PDLC不同，使用石墨烯电极的PDLC器件在标准操作条件下非常坚固，并且还具有灵活性和可伸缩性的优势。(C)2015年美国光学学会
Although polymer-dispersed liquid crystal (PDLC) devices have considerable potential application in smart windows, the high material cost of the indium tin oxide (ITO) electrodes conventionally used in these devices hinders their wide usage. In this work, we explore the use of graphene electrodes as a potential substitute for ITO electrodes in PDLC devices. The fabricated PDLC devices with graphene electrodes exhibit higher contrast and faster response than PDLC devices with ITO electrodes fabricated using the same chemical formulation and polymerization process. However, they also exhibit higher operation voltage and haze, which is primarily attributed to the inherently large resistance and inhomogeneity of the large-area graphene sheets initially transferred onto the transparent substrates. PDLC devices with graphene electrodes are robust under standard operating conditions and also have the advantage of flexibility and stretchability, unlike PDLCs with ITO electrodes. (C) 2015 Optical Society of America