Electro-optical characteristics of liquid crystal device with nanoscale molybdenum trioxide (MoO 3) thin films

Hong Gyu Park, Dai Hyun Kim, Gun Young Lee, Lee Gon Kim, Young Hwan Kim, Hongil Yoon, Dae Shik Seo

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


The liquid crystal (LC) alignment of molybdenum trioxide $(\hbox{MoO}-{3})$ 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 MoO 3 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 MoO 3 molecules. An examination of the electro-optical characteristics revealed that MoO 3 gave rise to a fast LC response time when compared to the PI layer.

Original languageEnglish
Article number6272316
Pages (from-to)1423-1425
Number of pages3
JournalIEEE Electron Device Letters
Issue number10
Publication statusPublished - 2012

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering


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