Influence of vapors of volatile organic compounds on spectral shift of bending vibrations of freely suspended ferroelectric liquid-crystal films

Yablonskii, Serguei V.; Nakano, Kazuyuki; Ozaki, Masanori; Yoshino, Katsumi
May 2004
Applied Physics Letters;5/10/2004, Vol. 84 Issue 19, p3723
Academic Journal
The influence of the vapors of volatile inert fluorocarbon compounds on the mechanical properties of freely suspended ferroelectric liquid-crystal films has been studied. It was shown that spectral shift of bending vibrations of freely suspended films depends on the mass variations of the associated ambient gas as well as on the adsorption of the vapors of volatile fluorocarbon compounds onto the film surface. It was also shown that adsorption layers similar to surfactants decrease the film surface tension by 11%-35% (4-12.5 dyn/cm).


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