Alignment of liquid crystal molecules on self-assembled monolayer with fluorinated alkyl chain at different deposition time

Park, Sang-Geon; Park, Hong-Gyu

doi:10.1016/j.optmat.2018.08.068

Cited by 10 publications

(3 citation statements)

References 27 publications

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“…For example, alkyl trialkoxysilanes have been found to provide excellent homeotropic alignment for various LCs [20]. The deposition of alkyl trialkoxysilane involves spontaneous adsorption from a liquid or vapor phase to form a stable coating on the substrates by covalent Si-O-Si bonding [21,22]. The modification by introducing reactive functional groups into the alignment layer has also been reported [23,24].…”

Section: Introductionmentioning

confidence: 99%

Versatile homeotropic liquid crystal alignment with tunable functionality prepared by one-step method

Zhang

Yang

et al. 2022

Journal of Colloid and Interface Science

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Section: Introductionmentioning

confidence: 99%

Versatile homeotropic liquid crystal alignment with tunable functionality prepared by one-step method

Zhang

Yang

et al. 2022

Journal of Colloid and Interface Science

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“…However, the formation of PWs is usually together with residual monomers in the active areas, and the small line width PWs (about 20μm) are rarely accomplished in the former work. Besides, though self-assembled monolayer (SAM) alignment by alkyl TS at low temperature has been proposed [9][10][11], no study to date is conducted on the effect of alkyl length of alkyl TS on the electro-optical properties of LC cells.…”

Section: Introductionmentioning

confidence: 99%

16.3: Flexible Liquid Crystal Displays with Fine‐Width Polymer Walls and Self‐Assembled Monolayer Alignment

Gong

Luo

Qiu

et al. 2021

Symp Digest of Tech Papers

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Flexible liquid crystal displays (LCDs) are regarded as one of the most promising candidates to achieve flexible displays. In this paper, we proposed a novel technique to fabricate flexible LCDs combining polymer walls (PWs) and self‐assembled‐monolayer(SAM). The PWs with fine morphology and line‐width (about 20 µm) were fabricated to keep uniform cell gap and provided a larger aperture opening ratio for flexible LCDs. Alignment by alkyl trichlorosilane(TS) SAM was achieved at room temperature. In this way, general flexible substrates could be used for flexible LCDs. This work is promising for the manufacture of flexible LCDs.

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“…SAMs influence the properties of the deposited surface depending on the kind of functional groups introduced. Therefore, the assembled monolayer can be applied in various fields such as solar cells [12], bio sensors [13], and displays [14].…”

Section: Introductionmentioning

confidence: 99%

Differences in ITO Interface Characteristics Change According to the Formation of Aromatic-Ring and Aliphatic Self-Assembled Monolayers

2020

Self Cite

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Herein, we confirm the performance difference according to the structure of self-assembling monolayer (SAM) and investigate the characteristics of the indium tin oxide (ITO) surface when ITO substrates are deposited by (3,3,3-trifluoropropyl)trimethoxysilane (F-3SAM) and (heptadecafluoro-1,1,2,2-tetrahydrodecyl)triethoxysilane (F-10SAM) having different chain lengths with trifluoromethyl group as terminal functional group, as well as SAM benzoic acid (BA) and 2-naphthoic acid (NA) with benzene ring forms. Through these, it is possible to control the wetting properties, surface roughness, and work function of the ITO surface. Wetting characteristics, average roughness, and changes in work function of the ITO surface were characterized by contact angle measurement, atomic force microscopy (AFM), and UV photoelectron spectroscopy (UPS). The measured contact angles were 41.1°, 82.25°, and 118° for the bare ITO, NA, and F-10SAM, respectively, the average roughnesses of the SAM-modified surfaces were 1.377, 1.033, and 0.838 nm for the bare ITO, NA, and F-10SAM, respectively. The work function of the ITO surface modified with NA and F-10SAM increased from 0.21 and 0.36 eV to 5.01 and 5.16 eV, respectively. As a result, the surface properties of ITO were better for aliphatic SAM than for aromatic ring SAM.

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Alignment of liquid crystal molecules on self-assembled monolayer with fluorinated alkyl chain at different deposition time

Cited by 10 publications

References 27 publications

Versatile homeotropic liquid crystal alignment with tunable functionality prepared by one-step method

Versatile homeotropic liquid crystal alignment with tunable functionality prepared by one-step method

16.3: Flexible Liquid Crystal Displays with Fine‐Width Polymer Walls and Self‐Assembled Monolayer Alignment

Differences in ITO Interface Characteristics Change According to the Formation of Aromatic-Ring and Aliphatic Self-Assembled Monolayers

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