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https://hdl.handle.net/2142/82922
Description
Title
Structure and Dynamics of Confined Molecules
Author(s)
Cho, Yoon-Kyoung
Issue Date
1999
Doctoral Committee Chair(s)
Granick, Steve
Department of Study
Materials Science and Engineering
Discipline
Materials Science and Engineering
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Physics, Condensed Matter
Language
eng
Abstract
Dielectric spectroscopy was employed within a SFA in order to investigate confinement effects on the dynamics of liquid crystal thin films. No shift upon confinement was observed for the molecular tumbling and flip motions in the nematic state. However, an interesting difference was observed as a function of film thickness for a much slower relaxation peak that was assigned to the mobility of trace ions within the 5CB samples.
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