Abstract
A liquid crystal polymer (LCP) self-assembled on a photoirradiated substrate can modify the viscoelastic response of liquid crystal medium on the substrate. Sum-frequency vibrational spectroscopy shows that the phenyl groups of LCP are oriented epitaxially with layer thickness and an in-plane alignment order much higher than that at the photoirradiated surface can be yielded. The liquid crystal molecules confined between the LCP-coated substrates reveals a stronger correlation among the thermally excited fluctuation modes. Our finding can be used to tailor the boundary forces on alignment substrates and to optimize the device performance.
Original language | English |
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Pages (from-to) | 11770-11775 |
Number of pages | 6 |
Journal | Journal of Physical Chemistry B |
Volume | 115 |
Issue number | 41 |
DOIs | |
State | Published - 20 Oct 2011 |