Mobility of Ferroelectric Domains in Antimony Sulfoiodide

Abstract

Dierent optical energy gaps in ferroelectric and paraelectric phases as well as light scattering on domain walls allow to observe ferroelectric domains in antimony sulfoiodide (SbSI) near the Curie temperature. Mobility 8.11(44)×10−8 m 2 /(V s) of ferroelectric domain walls under external electric eld has been determined along c-axis of SbSI single crystals using optical transmittance microscopy.

SbSI Composites Based on Epoxy Resin and Cellulose for Energy Harvesting and Sensors—The Influence of SBSI Nanowires Conglomeration on Piezoelectric Properties

“…Except for SbSI nanowire alignment, no conglomeration of them is visible on the SEM micrograph ( Figure 7b). The surface charges that may be constrained on ferroelectric domain boundaries [41,42] in SbSI nanowires may lead to their separation in the matrix material. The 0-3 type composite simultaneously rebuilt into the 1-3 type composite [37].…”

Electrical Property Analysis of Textured Ferroelectric Polycrystalline Antimony Sulfoiodide Using Complex Impedance Spectroscopy

“…The value of n < 1 means that hopping involves a translational motion with a sudden hopping [ 53 ]. The value of n = 0.8 is observed if a material contains dipoles that can point in two or more directions [ 48 ], which may be caused by one or more of the following in the case of SbSI polycrystals: Alternating arrangement of polar double chains [(SbSI) ∞ ] 2 parallel to the [001] axis above the Curie point inside a single crystallite [ 15 ]; Atoms shifting from the mirror plane perpendicularly to the [001] direction in the paraelectric phase inside a single crystallite [ 16 ]; Heterogeneous [Sb(S,I)] ∞ chains in the crystal structure consisting of sections with different lengths and opposite polarity resulting in positively or negatively-polarized irregular nanodomains inside a single crystallite [ 16 ], which are also visible in polarized light transmission [ 55 ]. Localized electron states may be created at ferroelectric domain boundaries.…”

“…Heterogeneous [Sb(S,I)] ∞ chains in the crystal structure consisting of sections with different lengths and opposite polarity resulting in positively or negatively-polarized irregular nanodomains inside a single crystallite [ 16 ], which are also visible in polarized light transmission [ 55 ]. Localized electron states may be created at ferroelectric domain boundaries.…”