Alignment of liquid crystals on ion beam-spurted graphene oxide thin layers

Yang Liu, Dae-Shik Seo

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Alignment of liquid crystals (LC) sandwiched between ion beam (IB)-spurted graphene oxide (GO) thin layers is presented in this manuscript. LC alignment is found sensitive to the direction and acceleration energy of spurted IB, and IB accelerated with a 45° incident angle is the most suitable and effective to align LC at the lowest acceleration energy. Generated chemical radicals and the surface topology modification of GO thin layers during IB spurting process are responsible for the alignment of LC, which were also confirmed by the chemical information variation in X-ray photoelectron spectroscopy spectra, modified topology observation in scanning electron microscopy images and atomic force microscopy images, the corresponding surface roughness analysis, and the surface energy analysis of IB-spurted GO thin layers. The increased LC anchoring on GO thin layers generated by spurted IB was also confirmed by the measured anchoring energies. LC sandwiched between IB-spurted GO thin layers also present competitive switching performances.

Original languageEnglish
Pages (from-to)83-89
Number of pages7
JournalJournal of the Society for Information Display
Volume25
Issue number2
DOIs
Publication statusPublished - 2017 Feb 1

Fingerprint

Liquid Crystals
Graphite
Liquid crystals
Oxides
Graphene
Ion beams
graphene
ion beams
liquid crystals
alignment
oxides
topology
Topology
Interfacial energy
surface energy
energy
Atomic force microscopy
surface roughness
X ray photoelectron spectroscopy
Surface roughness

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

Cite this

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Alignment of liquid crystals on ion beam-spurted graphene oxide thin layers. / Liu, Yang; Seo, Dae-Shik.

In: Journal of the Society for Information Display, Vol. 25, No. 2, 01.02.2017, p. 83-89.

Research output: Contribution to journalArticle

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