Homogeneous self-aligned liquid crystals on wrinkled-wall poly(dimethylsiloxane) via localised ion-beam irradiation

Hae Chang Jeong, Hong Gyu Park, Ju Hwan Lee, Yoon Ho Jung, Sang Bok Jang, Dae Shik Seo

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

We demonstrate self-aligned liquid crystals (LCs) using a wrinkled-wall polydimethylsiloxane (PDMS) wrinkle structure, which is a key factor to obtain a stable homogeneous alignment state with positive LCs. We constructed the wrinkled walls via localised surface exposure to IB radiation, which passed through a long length localised pattern mask. The creation of the wrinkled wall helped to align the LC molecules homogeneously because the wrinkled wall acted as a guide for the arrangement of positive LC molecules. In addition, we confirmed the stability of the alignment state as the width of the wrinkled wall was changed. Although this wrinkled-wall method is a non-contact method, LC alignment is achieved via an anisotropic topographical guide, which provides the LC molecules with stable homogeneous alignment.

Original languageEnglish
Article number8641
JournalScientific reports
Volume5
DOIs
Publication statusPublished - 2015 Mar 2

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ion beams
liquid crystals
irradiation
alignment
molecules
masks
radiation

All Science Journal Classification (ASJC) codes

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Jeong, Hae Chang ; Park, Hong Gyu ; Lee, Ju Hwan ; Jung, Yoon Ho ; Jang, Sang Bok ; Seo, Dae Shik. / Homogeneous self-aligned liquid crystals on wrinkled-wall poly(dimethylsiloxane) via localised ion-beam irradiation. In: Scientific reports. 2015 ; Vol. 5.
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Homogeneous self-aligned liquid crystals on wrinkled-wall poly(dimethylsiloxane) via localised ion-beam irradiation. / Jeong, Hae Chang; Park, Hong Gyu; Lee, Ju Hwan; Jung, Yoon Ho; Jang, Sang Bok; Seo, Dae Shik.

In: Scientific reports, Vol. 5, 8641, 02.03.2015.

Research output: Contribution to journalArticle

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