Date

Place

[P1-30]
14:00 ~ 15:30
Title:Polymer-Dispersed Liquid Crystal Devices with Graphene Electrodes
Hee Yeon?Noh, Eun Kyung?Gil, Byeongdae?Choi, and Seok-Hwan?Chung (DGIST, Korea)
Abstract: The quest for transparent conducting electrode materials has been an important issue since they are widely used in the flat panel display, OLED, and photovoltaic industry. Due to the high processing cost of the conventional ITO electrode, many alternative processes using CNT, graphene, metal mesh, nanoparticles, and nanowires has been studied recently. In this work, we fabricated smart window devices using polymer-dispersed liquid crystal (PDLC) film with graphene electrodes and studied the effect of the electrodes on the electro-optical properties of the devices. The performance of the PDLC devices with one graphene electrode was comparable to the devices with ITO electrodes. The device showed higher transmission, lower operating voltage and lower haze compared to the ITO devices. The graphene devices were also robust under the standard operating condition. In addition, the UV dose for the optimal device performance was less than that for the devices with ITO electrodes, which suggests a cost-effective device processing. We will discuss the effect of the graphene electrode on the morphology and interface properties and the light scattering efficiency of the PDLC film.
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