Open AccessDielectric and thermal properties of organic ferroelectric (R)-3-quinuclidinol in porous glass
Author(s) -
A. Yu. Milinskiy,
С. В. Барышников,
E. V. Charnaya,
N. I. Uskova
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2103/1/012198
Subject(s) - dielectric , ferroelectricity , materials science , porosity , phase transition , phase (matter) , glass transition , porous glass , mineralogy , condensed matter physics , analytical chemistry (journal) , composite material , chemistry , organic chemistry , polymer , optoelectronics , physics
The results of studies of the dielectric constant ε′ and the DTA signal of a new organic ferroelectric (R)-3-quinuclidinol (C 7 H 13 NO), embedded in porous glasses with an average pore size of 100 nm, are presented. The phase transition was found to shift to low temperatures by 3 K upon heating and 6 K upon cooling, in comparison with bulk (R)-3-quinuclidinol. A decrease in the phase transition temperature in composites with (R)-3-quinuclidinol nanoparticles is consistent with theoretical models of the influence of size effects on the structural phase transition.