Surface reformation on solution-derived zinc oxide films for liquid crystal systems via ion-beam irradiation

Jong Jin Lee, Hong Gyu Park, Jae Jun Han, Dai Hyun Kim, Dae Shik Seo

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

We investigated solution-derived ZnO films as liquid crystal (LC) alignment layers via ion-beam (IB) irradiation. Solution processing was adopted to replace the sputtering method for the deposition of ZnO films as LC alignment layers. Uniform and homogeneous LC alignment was achieved, and a high-performance LC system was achieved using these substrates. X-ray photoelectron spectroscopy (XPS) analysis showed that surface reformation of ZnO films by annealing and IB irradiation affects the uniformity of the LC alignment and allows control of the pretilt angle. Superior electro-optical (EO) characteristics of twisted nematic-LC cells constructed with IB-irradiated ZnO films were observed, which indicates that the proposed solution-derived ZnO films have strong potential for use in the production of advanced LC displays.

Original languageEnglish
Pages (from-to)6824-6828
Number of pages5
JournalJournal of Materials Chemistry C
Volume1
Issue number41
DOIs
Publication statusPublished - 2013 Nov 7

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Zinc Oxide
Liquid Crystals
Zinc oxide
Liquid crystals
Ion beams
Oxide films
Irradiation
Nematic liquid crystals
Liquid crystal displays
Sputtering
X ray photoelectron spectroscopy
Annealing
Substrates
Processing

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Chemistry

Cite this

Lee, Jong Jin ; Park, Hong Gyu ; Han, Jae Jun ; Kim, Dai Hyun ; Seo, Dae Shik. / Surface reformation on solution-derived zinc oxide films for liquid crystal systems via ion-beam irradiation. In: Journal of Materials Chemistry C. 2013 ; Vol. 1, No. 41. pp. 6824-6828.
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Surface reformation on solution-derived zinc oxide films for liquid crystal systems via ion-beam irradiation. / Lee, Jong Jin; Park, Hong Gyu; Han, Jae Jun; Kim, Dai Hyun; Seo, Dae Shik.

In: Journal of Materials Chemistry C, Vol. 1, No. 41, 07.11.2013, p. 6824-6828.

Research output: Contribution to journalArticle

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AU - Han, Jae Jun

AU - Kim, Dai Hyun

AU - Seo, Dae Shik

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AB - We investigated solution-derived ZnO films as liquid crystal (LC) alignment layers via ion-beam (IB) irradiation. Solution processing was adopted to replace the sputtering method for the deposition of ZnO films as LC alignment layers. Uniform and homogeneous LC alignment was achieved, and a high-performance LC system was achieved using these substrates. X-ray photoelectron spectroscopy (XPS) analysis showed that surface reformation of ZnO films by annealing and IB irradiation affects the uniformity of the LC alignment and allows control of the pretilt angle. Superior electro-optical (EO) characteristics of twisted nematic-LC cells constructed with IB-irradiated ZnO films were observed, which indicates that the proposed solution-derived ZnO films have strong potential for use in the production of advanced LC displays.

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