Abstract
We developed an inorganic-organic hybrid thin film via the sol-gel method for a new liquid crystal alignment layer and investigated the influence of an organic species on the alignment characteristics of the liquid crystals (LCs). A thin film of methyl-doped amorphous silicon oxide (a-SiO x:CH 3) was fabricated from the hydrolysis and condensation reaction of the initial precursors of methyltriethoxysilane (MTES) and tetraethoxysilane (TEOS) at a proper ratio. A low-energy ion beam (IB) treatment gives rise to the homogeneous alignment of LC in an IB condition on a-SiO x:CH 3 thin film; however, it is difficult to control the LC alignment on a-SiO x thin film derived only from TEOS as a precursor. The LC alignment depending on the chemical structure of the silica thin film was investigated and analyzed in terms of the sensitivity of the axis-selective destruction of the chemical bonding on the surface of the thin silica film.
| Original language | English |
|---|---|
| Pages (from-to) | 1437-1442 |
| Number of pages | 6 |
| Journal | Soft Matter |
| Volume | 8 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2012 Feb 7 |
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All Science Journal Classification (ASJC) codes
- Chemistry(all)
- Condensed Matter Physics
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Homogeneous liquid crystal alignment on inorganic-organic hybrid silica thin films derived by the sol-gel method. / Chae, Soo Sang; Hwang, Byoung Har; Jang, Woo Soon; Oh, Jin Young; Park, Jee Ho; Lee, Se Jong; Song, Kie Moon; Baik, Hong Koo.
In: Soft Matter, Vol. 8, No. 5, 07.02.2012, p. 1437-1442.Research output: Contribution to journal › Article
TY - JOUR
T1 - Homogeneous liquid crystal alignment on inorganic-organic hybrid silica thin films derived by the sol-gel method
AU - Chae, Soo Sang
AU - Hwang, Byoung Har
AU - Jang, Woo Soon
AU - Oh, Jin Young
AU - Park, Jee Ho
AU - Lee, Se Jong
AU - Song, Kie Moon
AU - Baik, Hong Koo
PY - 2012/2/7
Y1 - 2012/2/7
N2 - We developed an inorganic-organic hybrid thin film via the sol-gel method for a new liquid crystal alignment layer and investigated the influence of an organic species on the alignment characteristics of the liquid crystals (LCs). A thin film of methyl-doped amorphous silicon oxide (a-SiO x:CH 3) was fabricated from the hydrolysis and condensation reaction of the initial precursors of methyltriethoxysilane (MTES) and tetraethoxysilane (TEOS) at a proper ratio. A low-energy ion beam (IB) treatment gives rise to the homogeneous alignment of LC in an IB condition on a-SiO x:CH 3 thin film; however, it is difficult to control the LC alignment on a-SiO x thin film derived only from TEOS as a precursor. The LC alignment depending on the chemical structure of the silica thin film was investigated and analyzed in terms of the sensitivity of the axis-selective destruction of the chemical bonding on the surface of the thin silica film.
AB - We developed an inorganic-organic hybrid thin film via the sol-gel method for a new liquid crystal alignment layer and investigated the influence of an organic species on the alignment characteristics of the liquid crystals (LCs). A thin film of methyl-doped amorphous silicon oxide (a-SiO x:CH 3) was fabricated from the hydrolysis and condensation reaction of the initial precursors of methyltriethoxysilane (MTES) and tetraethoxysilane (TEOS) at a proper ratio. A low-energy ion beam (IB) treatment gives rise to the homogeneous alignment of LC in an IB condition on a-SiO x:CH 3 thin film; however, it is difficult to control the LC alignment on a-SiO x thin film derived only from TEOS as a precursor. The LC alignment depending on the chemical structure of the silica thin film was investigated and analyzed in terms of the sensitivity of the axis-selective destruction of the chemical bonding on the surface of the thin silica film.
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U2 - 10.1039/c1sm06592k
DO - 10.1039/c1sm06592k
M3 - Article
VL - 8
SP - 1437
EP - 1442
JO - Soft Matter
JF - Soft Matter
SN - 1744-683X
IS - 5
ER -