TITLE

Photopyroelectric structural and thermal characterization of first-order phase transition in liquid crystals

AUTHOR(S)
Mercuri, F.; Pizzoferrato, R.; Zammit, U.; Marinelli, M.
PUB. DATE
November 2002
SOURCE
Applied Physics Letters;11/25/2002, Vol. 81 Issue 22, p4148
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A photopyroelectric setup, which allows the study of the thermal behavior and the structural evolution of 8CB liquid crystal at the first-order nematic-isotropic phase transition, is presented. It is shown that the kinetics of the transition in liquid-crystal films are not the same on heating and cooling, and a quantitative determination of the width of the two-phase coexistence region is reported. A correlation between the photopyroelectric signal and the liquid-crystal morphology in the coexistence region has been found.
ACCESSION #
8528101

 

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