Enhanced electro-optical properties of Y2O3(yttrium trioxide) nanoparticle-doped twisted nematic liquid crystal devices

Autor:	Young Gu Kang, Hong Gyu Park, Byeong Yun Oh, Hae Yoon Jung, Hyungjun Kim, Dae Shik Seo, Seok Jeong Yang
Rok vydání:	2012
Předmět:	Materials science business.industry Doping Yttrium trioxide Response time Nanoparticle General Chemistry Condensed Matter Physics Threshold voltage Optics Liquid crystal Homogeneous Transmittance Optoelectronics General Materials Science business
Zdroj:	Liquid Crystals. 39:789-793
ISSN:	1366-5855 0267-8292
DOI:	10.1080/02678292.2012.681073
Popis:	We report the electro-optic (EO) characteristics of a Y2O3 nanoparticle-doped nematic liquid crystal (NLC) system. After doping with 2 wt.% Y2O3 nanoparticles, LC alignment shows a homogeneous orientation state without aggregation and crack. In particular, the pretilt angle was slightly increased in proportion to Y2O3 doping concentration. Response time was improved by nearly 53%, and the threshold voltage for display operation was reduced from 4.2 V to 2.6 V. We assumed that superior EO properties were achieved by the Y2O3 nanoparticle, which reduces the field-screening effect of impurity ions. We also confirmed that enhanced EO characteristics were achieved without loss of light transmittance.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::87afa3dc4485c7c0c470aafd30834817 https://doi.org/10.1080/02678292.2012.681073 Zobrazit plný text záznamu