Abstract
The alignment of liquid crystals (LCs) in LC-based optical devices determines the visual quality of devices, and a simple pretreatment is necessary for LC alignment. Here, we present a BiFeO3 (BFO) thin layer working as an alignment layer, homogeneously aligning LCs after a pre-thermal annealing treatment. Dramatic BFO bumps were observed during the thermal annealing process, and a corresponding enhancement in wettability was detected from measurement of tunable contact angles. LCs in the BFO bump thin layer sandwiched TN cell were found to be perfectly homogeneously aligned due to the enhanced anisotropy and wettability caused by the morphology change of the thin layer.
| Original language | English |
|---|---|
| Pages (from-to) | 320-326 |
| Number of pages | 7 |
| Journal | Liquid Crystals |
| Volume | 43 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2016 Feb 19 |
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All Science Journal Classification (ASJC) codes
- Chemistry(all)
- Materials Science(all)
- Condensed Matter Physics
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Liquid crystal alignment induced by controllable surface wettability of BiFeO3 bumps thin layer. / Liu, Yang; Liu, Kaihua; Wen, Pushan; Oh, Byeong Yun; Park, Hong Gyu; Seo, Dae Shik.
In: Liquid Crystals, Vol. 43, No. 3, 19.02.2016, p. 320-326.Research output: Contribution to journal › Article
TY - JOUR
T1 - Liquid crystal alignment induced by controllable surface wettability of BiFeO3 bumps thin layer
AU - Liu, Yang
AU - Liu, Kaihua
AU - Wen, Pushan
AU - Oh, Byeong Yun
AU - Park, Hong Gyu
AU - Seo, Dae Shik
PY - 2016/2/19
Y1 - 2016/2/19
N2 - The alignment of liquid crystals (LCs) in LC-based optical devices determines the visual quality of devices, and a simple pretreatment is necessary for LC alignment. Here, we present a BiFeO3 (BFO) thin layer working as an alignment layer, homogeneously aligning LCs after a pre-thermal annealing treatment. Dramatic BFO bumps were observed during the thermal annealing process, and a corresponding enhancement in wettability was detected from measurement of tunable contact angles. LCs in the BFO bump thin layer sandwiched TN cell were found to be perfectly homogeneously aligned due to the enhanced anisotropy and wettability caused by the morphology change of the thin layer.
AB - The alignment of liquid crystals (LCs) in LC-based optical devices determines the visual quality of devices, and a simple pretreatment is necessary for LC alignment. Here, we present a BiFeO3 (BFO) thin layer working as an alignment layer, homogeneously aligning LCs after a pre-thermal annealing treatment. Dramatic BFO bumps were observed during the thermal annealing process, and a corresponding enhancement in wettability was detected from measurement of tunable contact angles. LCs in the BFO bump thin layer sandwiched TN cell were found to be perfectly homogeneously aligned due to the enhanced anisotropy and wettability caused by the morphology change of the thin layer.
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U2 - 10.1080/02678292.2015.1108465
DO - 10.1080/02678292.2015.1108465
M3 - Article
VL - 43
SP - 320
EP - 326
JO - Liquid Crystals
JF - Liquid Crystals
SN - 0267-8292
IS - 3
ER -