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Updated: Feb 4, 2026

Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets
Published on: May 15, 2017
Emission ellipsometry as a tool for luminescent liquid crystal phase transition identification
Gustavo G Dalkiranis1,2, E M Therézio3, Gilmar Conte4
1Department of Physics, Universitat Autònoma de Barcelona, CP 08193, Bellaterra, Spain.
Abstract:
In the present work, we have studied the liquid crystalline properties of a luminescent molecule, which presents smectic mesophases, using the emission ellipsometry technique. A methodology with photoselection of the excitation light to improve the experiment is presented. An empirical model is proposed to explain the experimental results. The Stokes parameters of the emitted light allowed the correlation of changes in the polarization degree, ellipticity angle, and rotation angle with phase transitions.
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