Journal ArticleDOI
Impact of nanoconfinement on the diisopropylammonium chloride (C6H16ClN) organic ferroelectric
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In this paper, the dielectric studies of diisopropylammonium chloride (DIPAC) nanoparticles embedded into opal and MCM-41 silica matrices are presented.Abstract:
The dielectric studies of diisopropylammonium chloride (DIPAC) nanoparticles embedded into opal and MCM-41 silica matrices are presented. It is shown that the ferroelectric phase transition shifts to low temperatures and broadens for DIPAC within the opal pores compared to bulk. The thermal hysteresis of the transition increases under opal nanoconfinement. No anomalies of the permittivity relevant to the ferroelectric transition are observed for DIPAC within the MCM-41 molecular sieves likely due to formation of the amorphous phase.read more
Citations
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Journal ArticleDOI
Size Effect in Nanocomposites Based on Molecular Ferroelectric Diisopropylammonium Bromide
TL;DR: In this paper, the dielectric properties of Al2O3 oxide films with a pore size of 330 and 60 nm with particles of an organic ferroelectric diisopropylammonium bromide (C6H16BrN, DIPAB) introduced into the pores, aimed at determining the size dependences of phase transition parameters.
Journal ArticleDOI
Dielectric properties of an organic ferroelectric of bromide diisopropylammonium embedded into the pores of nanosized Al 2 O 3 films.
TL;DR: The study presents experimental results for investigating linear and nonlinear dielectric properties of nanocomposites based on bromide diisopropylammonium and aluminum oxide films and indicated that the phase transition was blurred and shifted toward lower temperatures.
Journal ArticleDOI
Dielectric properties of ferroelectric diisopropylammonium iodide
TL;DR: In this article, the temperature dependences of dielectric constant, amplitude of the third harmonic and heat capacity for the organic ferroelectric of diisopropylammonium iodide (C6H16NI) have been investigated.
Journal ArticleDOI
NMR Studies of a Nanocomposite Based on Molecular Ferroelectric Diisopropylammonium Bromide
N. I. Uskova,E. V. Charnaya,D. Yu. Podorozhkin,S. V. Baryshnikov,S. V. Baryshnikov,A. Yu. Milinskiy,I. V. Egorova,D. Yu. Nefedov +7 more
TL;DR: In this paper, the properties of the molecular ferroelectric diisopropylammonium bromide (C6H16BrN, DIPAB) particles embedded into a nanoporous opal matrix were studied by high-resolution nuclear magnetic resonance (NMR) in the temperature range from 295 to 450 K.
Journal ArticleDOI
Dielectric, impedance, modulus spectroscopy and AC conductivity studies on novel organic ferroelectric diisopropylammonium chloride (dipaCl)
Mamataj Khatun,Ekramul Kabir +1 more
TL;DR: In this paper, an organic molecular ferroelectric diisopropylammonium chloride (dipaCl) was successfully synthesized using diisOPropylamine, hydrochloric acid (57%), and methanol solution.
References
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Ordered mesoporous molecular sieves synthesized by a liquid-crystal template mechanism
TL;DR: In this paper, the synthesis of mesoporous inorganic solids from calcination of aluminosilicate gels in the presence of surfactants is described, in which the silicate material forms inorganic walls between ordered surfactant micelles.
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Principles and Applications of Ferroelectrics and Related Materials
TL;DR: In this paper, the theory of ferroelectricity in terms of soft modes and lattice dynamics is developed and modern techniques of measurement, including X-ray, optic, and neutron scattering, infra-red absorption, and magnetic resonance.
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Dielectric Materials and Applications
TL;DR: Theory of dielectric measuring techniques and their applications as mentioned in this paper Theoretical and practical applications of die-lectric materials include: insulation strength of high pressure gases and of vacuum liquid dielectrics plastics as dielectors ceramics dielectrices in equipment, capacitors in capacitors rubber and plastics in cables problems of the cable engineer, and the requirements of the armed forces.
Journal ArticleDOI
Phenomenological study of the size effect on phase transitions in ferroelectric particles
TL;DR: In this paper, the size effects on the Curie temperature and spontaneous polarization in spherical particles are studied using Landau phenomenological theory and the extrapolation length is shown to be size dependent.