Electro-optical switching of liquid crystals sandwiched between ion-beam-spurted graphene quantum dots-doped PEDOT:PSS composite layers

Yang Liu, Hong Gyu Park, Ju Hwan Lee, Dae-Shik Seo, Eun Mi Kim, Gi Seok Heo

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Graphene quantum dots (GQDs)-doped PEDOT:PSS composite layers were utilized to align liquid crystals (LCs) via an ion-beam (IB)-spurting pre-treatment process. LCs were homogeneously aligned between sandwiched GQDs/PEDOT:PSS composite thin layers, and the alignment of LCs was found to be affected by both the quantity of doped GQDs and IBspurting intensity. Competitive electro-optical switching properties and non-residual DC performance of the cell equipped with GQDs/PEDOT:PSS composite alignment layers were obtained because of the enhanced field effect and charge transport induced by doped GQDs. Notably, using IBspurted GQDs/PEDOT:PSS layers as alignment layers for next generation high-performance liquid crystal display (LCD) is promising.

Original languageEnglish
Pages (from-to)34071-34081
Number of pages11
JournalOptics Express
Volume23
Issue number26
DOIs
Publication statusPublished - 2015 Dec 28

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optical switching
graphene
ion beams
liquid crystals
quantum dots
composite materials
alignment
pretreatment
direct current
cells

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

Cite this

Liu, Yang ; Park, Hong Gyu ; Lee, Ju Hwan ; Seo, Dae-Shik ; Kim, Eun Mi ; Heo, Gi Seok. / Electro-optical switching of liquid crystals sandwiched between ion-beam-spurted graphene quantum dots-doped PEDOT:PSS composite layers. In: Optics Express. 2015 ; Vol. 23, No. 26. pp. 34071-34081.
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Electro-optical switching of liquid crystals sandwiched between ion-beam-spurted graphene quantum dots-doped PEDOT:PSS composite layers. / Liu, Yang; Park, Hong Gyu; Lee, Ju Hwan; Seo, Dae-Shik; Kim, Eun Mi; Heo, Gi Seok.

In: Optics Express, Vol. 23, No. 26, 28.12.2015, p. 34071-34081.

Research output: Contribution to journalArticle

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