A one-dimensional organic-inorganic hybrid ferroelectric exhibiting dielectric-optical duple switch

Journal of Materials Chemistry C, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

A one-dimensional organic – inorganic hybrid ferroelectric, (C 4 H 8 NH 2 ) [BiCl 5 ], exhibiting a dielectric-optical duple switch is reported. Theoretical study discloses that the ferroelectricity originates from both cations and anions.

Язык: Английский

Ferroelectricity, Piezoelectricity, and Unprecedented Starry Ferroelastic Patterns in Organic–Inorganic (CH₃C(NH₂)₂)₃[Sb₂X₉] (X = Cl/Br/I) Hybrids

Inorganic Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Май 5, 2025

In this study, we present a novel class of lead-free hybrid antimony halides incorporating the acetamidinium cation, with chemical compositions: (CH3C(NH2)2)3[Sb2Cl9] (ACA), (CH3C(NH2)2)3[Sb2Br9] (ABA), and (CH3C(NH2)2)3[Sb2I9] (AIA) . Despite their seemingly analogous formulations, these compounds exhibit diverse physical characteristics, predominantly dictated by differences in metal-halide architectures. Indeed, anionic frameworks ACA AIA are reminiscent well-known ferroelectric materials, distinguished its piezoelectric ferroelastic underpinned buckled honeycomb two-dimensional (2D) layers chloride. Conversely, is characterized attribute, discrete bioctahedral units forming zero-dimensional (0D) structure. A surprising structural deviation constitutes sublattice ABA, which amalgamates features from both AIA, yielding an unprecedented two-component (0D + 2D) architecture. The properties have been demonstrated through pyroelectric current measurements hysteresis loop analyses. Additionally, noncentrosymmetric nature has corroborated second harmonic generation experiments. piezoelectricity was confirmed using piezoresponse force microscopy (PFM). Furthermore, observations under polarizing microscope revealed distinct well-defined abundant star patterns previously observed only simple oxides alloys.

Язык: Английский

An organic-inorganic hybrid perovskite material [Me3NCMe3]GaCl4 exhibits a two-step off-on-off SHG response with large temperature interval

Chemical Communications, Год журнала: 2024, Номер unknown

Опубликована: Янв. 1, 2024

By modifying [Me 4 N] by replacing the methyl groups with tert -butyl groups, a new organic–inorganic hybrid compound 3 NCMe ]GaCl (1) exhibiting true two-step SHG off–on–off switching rapid and large temperature interval was reported.

Язык: Английский