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Liquid Crystals Volume 44, 2017 - Issue 3
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Articles

Thermal and electro-optical properties of cerium-oxide-doped liquid-crystal devices

Hyo-Young MunInformation Display Device Laboratory, Department of Electrical and Electronic Engineering, Yonsei University, Seoul, South Korea
,
Hong-Gyu ParkSchool of Electrical, Electronic & Control Engineering, Changwon National University, Gwangju, South Korea
,
Hae-Chang JeongInformation Display Device Laboratory, Department of Electrical and Electronic Engineering, Yonsei University, Seoul, South Korea
,
Ju Hwan LeeInformation Display Device Laboratory, Department of Electrical and Electronic Engineering, Yonsei University, Seoul, South Korea
,
Byeong-Yun OhGwangju Institute of Science and Technology, Gwangju, South Korea
&
Dae-Shik SeoInformation Display Device Laboratory, Department of Electrical and Electronic Engineering, Yonsei University, Seoul, South KoreaCorrespondence[email protected]
Pages 538-543 | Published online: 06 Sep 2016
 
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ABSTRACT

Doping with cerium (IV) oxide (CeO2) nanoparticles can significantly enhance the thermal stability and electro-optical (EO) properties of nematic liquid crystal (NLC) systems. Thermal stability was improved without aggregation and reduction of transmittance by adding CeO2 nanoparticles in a liquid crystal medium. In particular, the EO properties greatly improved in CeO2-dispersed NLC cells. The threshold voltage reduced from 3.027 to 2.279 V and the response time decreased from 13.097 to 9.970 ms with increased CeO2 nanoparticles in the NLC cells. The improved properties of liquid crystals doped with CeO2 nanoparticles depend on the anchoring energy and the electric field of the CeO2-dispersed liquid crystal displays.

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Disclosure statement

No potential conflict of interest was reported by the authors.

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