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 :
