Superior electro-optic properties of liquid crystal system using cobalt oxide nanoparticle dispersion |
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| Authors: | Hyung-Koo Chung Hong-Gyu Park Yong-Seok Ha Jeong-Min Han Jin-Woo Lee |
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| Affiliation: | 1. Information Display Device Laboratory, Department of Electrical and Electronic Engineering , Yonsei University , Seoul , Republic of Korea;2. Department of Electronic , Seoil University , Seoul , Republic of Korea;3. Technology Policy Department , Korea Electronics Technology Institute , Seongnam-si , Republic of Korea |
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| Abstract: | In this article, we study the electro-optical (EO) properties of the homogeneous aligned nematic liquid crystal (N-LC) doped with cobalt oxide (Co3O4) nanoparticles (NPs). The EO characteristics of Co3O4 doped N-LC are higher performance, indicating lower threshold voltage (1.33 V), faster rising time (1.479 ms), and faster falling time (9.343 ms) than pure liquid crystal (LC) cells. We have demonstrated these results by investigating the relationship between dielectric constants and LC device properties. Furthermore, we proved NPs doped N-LC cells drive low power operation without capacitance hysteresis. Our experimental results were verified by software simulation based on general physical properties. |
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| Keywords: | cobalt oxide nanoparticles liquid crystal hysteresis electro-optical properties |
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