Influence of Pd(II) Adsorption on High-Temperature Ferroelastic Phase Transition in (2-Amino-2-thiazolinium)PbBr₃

Abstract

Ferroelastic materials have received special attention because of their great promise for mechanical switches, piezoelectric sensors, and data storage applications. Here, we report a novel ferroelastic semiconducting hybrid organic–inorganic perovskite (C3H7N2S)PbBr3 (1) [(C3H7N2S)+ is 2-amino-2-thiazolinium] with a ferroelastic phase transition at 395 K and an optical band gap of 3.43 eV. 1 has a one-dimensional BaNiO3-type structure and undergoes a high-temperature ferroelastic phase transition with an Aizu notation of mmmF2/m. Meanwhile, 1 exhibits dielectric switch near the phase transition temperature. By introducing the thioether group, the motion of the molecules or ions of 1 is hindered after the sorption of Pd(II) metal ions, which leads to the disappearance of the high-temperature ferroelastic phase transition and dielectric switch. This is the first reported ferroelastic semiconductor material with Pd(II) adsorption property, by studying the influence of Pd(II) adsorption on high-temperature ferroelastic phase transition, it may be enlightening to further uncover the mechanism of phase transition or the origin of ferroelasticity, which represents an important step toward multifunctional applications of lead-hybrid perovskite-based ferroelastic materials.

Novel One-Dimensional Organic–Inorganic Hybrid Halide Perovskite Material with Coexistence of High Phase Transition Temperature and Corresponding Dielectric Response

“…Then a tangent line is made through the position of the extreme point of the first derivative in the ultraviolet absorption, and the value that intersects the X -axis is the bandgap value. The final calculated bandgap value is 3.12 eV, which is lower than those of most of the excellent semiconductors, such as [Et 3 NCH 2 Cl]­[PbBr 3 ] (3.57 eV), (C 3 H 7 N 2 S)­PbBr 3 (3.43 eV), and (Et 3 NCH 2 CH 2 F)­PbBr 3 (3.48 eV) . This result aligns with the observed trend in recently published papers, where the bandgap decreases with an increase in the size of the cation. − See Table S4 for a more detailed comparison.…”

H/F Substitution Achieved Enantiomeric Organic Inorganic Hybrid Perovskites and Trigonal Structure [DMFP]3(CdBr3)(CdBr4)

“…The ( R )- and ( S )-[DMFP] + cations are located between the gaps of the adjacent one-dimensional (1D) chains. Such 1D structures are commonly observed in OIHPs, such as ( N -methylpyrrolidinium)­MnCl 3 , (2-amino-2-thiazolinium)­PbBr 3 , (dimethylamine)­GeI 3 …”

“…The (R)-and (S)-[DMFP] + cations are located between the gaps of the adjacent onedimensional (1D) chains. Such 1D structures are commonly observed in OIHPs, such as (N-methylpyrrolidinium)MnCl 3 , 38 (2-amino-2-thiazolinium)PbBr 3 , 39 (dimethylamine)GeI 3 . 40 In the intermediate temperature phase (ITP) at 430 K, both (R)-and (S)-[DMFP][CdBr 3 ] were refined at the orthogonal P2 1 2 1 2 1 space group, 222-point group.…”

A three-dimensional Mn(ii) coordination polymer with ferroelasticity obtained by introducing coligands to form novel networks

“…30 For verification of the ferroelasticity, the ferroelastic domains of the crystal were observed using polarized light microscopy. 31 Fig. 4a-c shows how the structure of the ferroelastic domains of crystal 1 evolved along the (011) plane at different temperatures.…”