A new organic–inorganic hybrid perovskite ferroelectric [ClCH₂CH₂N(CH₃)₃][PbBr₃] and Its PVDF matrix-assisted highly-oriented flexible ferroelectric films

Abstract

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...

Design, synthesis, and characterization of a new hybrid organic–inorganic perovskite with a high-Tc dielectric transition

“…The single crystal X-ray diffraction data of 1 were collected at 296 K and 410 K. At 296 K, 1 crystallizes in the monoclinic crystallographic system and is a 4 H -hexagonal perovskite structure as reported in many references. 25,26,28,29 The centrosymmetric space group of 1 is P 2 1 / c and the cell parameters of 1 is a = 10.8678(4) Å, b = 35.6850(15) Å, c = 7.7853(3) Å, Z = 8, β = 100.9530(10)° and V = 2964.3(2) Å 3 .…”

“…The single crystal X-ray diffraction data of 1 were collected at 296 K and 410 K. At 296 K, 1 crystallizes in the monoclinic crystallographic system and is a 4Hhexagonal perovskite structure as reported in many references. 25,26,28,29 The centrosymmetric space group of 1 is P2 It can be seen from the packing view (Fig. 2), every Pb atom lies on a 2 1 -screw axis and bridges with six Br atoms, forming infinite one-dimension [PbBr 3 ] − chains along the c-axis.…”

“…A handful of examples of perovskites containing [PbX 3 ] − can be found in the literature. 21,[24][25][26][27][28][29] It can be seen that a stepchange of ε′ is similar for all perovskites containing [PbX 3 ] − although they possess different cations or halogen atoms. As presented in Table S1, † (Et 4 N)PbBr 3 , (FTEA)PbBr 3 , IMPbBr 3 , CEPBBr 3 and BEPbBr 3 have a similar [PbBr 3 ] − structure and similar change of ε′ with 1.…”

Dual dielectric-responsive hybrid materials with fluorescent properties

“…[1][2][3][4][5] Multi-functional materials possess the capability to integrate a variety of physical signals (such as electrical, magnetic, optical, and thermal) into one device. [6][7][8][9][10][11][12][13] Therefore, they have acted as a significant component in sensors, switches, digital processing systems, and optoelectronic devices, and have shown great potential in meeting the diverse needs of the market. [14][15][16][17][18][19] As functional materials, there has been increasing interest in solid-solid phase transition materials due to their unique properties.…”

“…1–5 Multi-functional materials possess the capability to integrate a variety of physical signals (such as electrical, magnetic, optical, and thermal) into one device. 6–13 Therefore, they have acted as a significant component in sensors, switches, digital processing systems, and optoelectronic devices, and have shown great potential in meeting the diverse needs of the market. 14–19…”