In this work, an upgraded photopyroelectric setup has been used to investigate phase transitions in liquid crystals dispersed with photochromic molecules. In particular, we have studied the thermal diffusivity before, during, and after the photo-induced conformational changes of the dispersed photochromic molecules. Upon sample irradiation, an opposite shift of the phase transition temperatures were observed in the investigated 8CB–NP and 8CB–7AB mixtures due to the different changes in the shape undergone by the dispersed active molecules.

Paoloni, S., Mercuri, F., Zammit, U. (2019). Analysis of UV Assisted Phase Transitions in Mixtures of Liquid Crystals with Photochromic Compounds by Photopyroelectric Calorimetry. INTERNATIONAL JOURNAL OF THERMOPHYSICS, 40(12) [10.1007/s10765-019-2575-4].

Analysis of UV Assisted Phase Transitions in Mixtures of Liquid Crystals with Photochromic Compounds by Photopyroelectric Calorimetry

Paoloni S.;Mercuri F.;Zammit U.
2019-01-01

Abstract

In this work, an upgraded photopyroelectric setup has been used to investigate phase transitions in liquid crystals dispersed with photochromic molecules. In particular, we have studied the thermal diffusivity before, during, and after the photo-induced conformational changes of the dispersed photochromic molecules. Upon sample irradiation, an opposite shift of the phase transition temperatures were observed in the investigated 8CB–NP and 8CB–7AB mixtures due to the different changes in the shape undergone by the dispersed active molecules.
2019
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore FIS/01 - FISICA SPERIMENTALE
English
Phase transition; Photochromic liquid crystal; Photopyroelectric technique
Paoloni, S., Mercuri, F., Zammit, U. (2019). Analysis of UV Assisted Phase Transitions in Mixtures of Liquid Crystals with Photochromic Compounds by Photopyroelectric Calorimetry. INTERNATIONAL JOURNAL OF THERMOPHYSICS, 40(12) [10.1007/s10765-019-2575-4].
Paoloni, S; Mercuri, F; Zammit, U
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/247252
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