DocumentCode
1266902
Title
Electro-Optical Characteristics of Liquid Crystal Device With Nanoscale Molybdenum Trioxide 
Thin Films
Author
Park, Hong-Gyu ; Kim, Dai-Hyun ; Lee, Gun-Young ; Kim, Lee-Gon ; Kim, Young-Hwan ; Yoon, Hongil ; Seo, Dae-Shik
Author_Institution
Dept. of Electr. & Electron. Eng., Yonsei Univ., Seoul, South Korea
Volume
33
Issue
10
fYear
2012
Firstpage
1423
Lastpage
1425
Abstract
The liquid crystal (LC) alignment of molybdenum trioxide (MoO3) thin layers through ion-beam (IB) irradiation leads to LC alignment characteristics that are superior to those obtained with rubbed polyimide (PI) layers. We found that LC alignment states on a thin MoO3 layer are influenced by changes in IB irradiation energy. X-ray photoelectron spectroscopy analysis showed that the binding intensities of the Mo peaks that significantly decreased at IB irradiation energies greater than 2400 eV can homogeneously align with the LC and MoO3 molecules. An examination of the electro-optical characteristics revealed that MoO3 gave rise to a fast LC response time when compared to the PI layer.
Keywords
X-ray photoelectron spectra; electro-optical devices; ion beam effects; liquid crystal devices; molybdenum compounds; nanoelectronics; nanostructured materials; thin film devices; thin films; IB irradiation energies; LC alignment characteristics; MoO3; X-ray photoelectron spectroscopy analysis; electro-optical characteristics; ion-beam irradiation; liquid crystal alignment; liquid crystal device; nanoscale molybdenum trioxide thin films; Energy measurement; Liquid crystal displays; Optical device fabrication; Polyimides; Radiation effects; Threshold voltage; Time factors; Electro-optical (EO) properties; ion-beam (IB) irradiation; liquid crystal (LC); molybdenum trioxide $(hbox{MoO}_{3})$
fLanguage
English
Journal_Title
Electron Device Letters, IEEE
Publisher
ieee
ISSN
0741-3106
Type
jour
DOI
10.1109/LED.2012.2207875
Filename
6272316
Link To Document