A hybrid
organic–inorganic lead halide perovskite, [BrCH2CH2N(CH3)3][PbBr3] (BEPbBr), obtained by matching a quasi-spherical (2-bromoethyl)
trimethylammonium cation with an infinite one-dimensional zigzag [PbBr3]− anion chain, exhibits a reversible ferroelectric
phase transition at 302/286 K. Switchable dielectric and ferroelectricity
were observed accompanied by the order–disorder phase transition
at near-room-temperature. Further, the ferroelectric BEPbBr was dispersed into a PVDF matrix to form flexible BEPbBr@PVDF composite films. The β-phase PVDF content in composite films
was significantly improved without requiring complicated after-treatment,
and the ferroelectricity was also greatly enhanced resulting from
the induced ordered orientation by the interactions between BEPbBr and β-phase dominated PVDF. This finding may
promote research on near-room-temperature multifunctional switching
smart materials and wearable devices by utilizing molecular ferroelectrics
and their flexible films.
A new organic-inorganic hybrid perovskite ferroelectric, [ClCH2CH2N(CH3)3][PbBr3] (CEPbBr) was obtained by the reaction of (2-chloroethyl) trimethylammonium chloride [ClCH2CH2N(CH3)3]+Cl- with lead (II) bromide in HBr aqueous solution. CEPbBr could undergo a...
Organic-inorganic hybrid rare-earth double perovskite has been paid more and more attention owing to their intriguing chemical and physical properties. In this paper, we report a new layered 2D hybrid...
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