The first salicylaldehyde Schiff base organic–inorganic hybrid lead iodide perovskite ferroelectric

Abstract

A salicylaldehyde Schiff base hybrid lead iodide perovskite [SAPD]PbI3 (SAPD = 1-((2-hydroxybenzylidene)amino)pyridin-1-ium) has been synthesized and shows robust nonlinear optical response and large spontaneous polarization. The first introduction of salicylaldehyde...

Rational design of an organic–inorganic hybrid with Schiff base cations for an efficient quadratic nonlinear optical switch

“…Since the physical properties of the material are closely related to its crystal structure and electronic structure, and it has been proved that the NLO properties of a crystal can be studied by computational methods, [48][49][50][51] the band structure of 1 was calculated by density functional theory (DFT) to study the relationship between its structure and properties. Fig.…”

Crystal structure and Hirshfeld surface analysis of mono/bis(aqua-κO)[N-(2-oxidobenzylidene)valinato-κ3 O,N,O′]copper(II): dimeric Schiff base copper(II) complexes having different numbers of coordinated water molecules

“…According to the literature, in general, Schiff bases and their metal complexes are multipurpose compounds and are extensively utilized in many research and industrial applications. These compounds can be utilized alone or for the preparation of various hybrid materials, such as, for example, supramolecular elastomers with imine-functionalized polysiloxanes (Hu et al, 2010), conducting metallopolymers for electrochemical sensing (Gonza ´lez et al, 2021), while recently reported co-crystals of a Schiff base with lead iodide perovskite show photo-triggered ferroelectricity (Deng et al, 2022). Furthermore, Schiff base complexes are considered to be an important class of organic compounds with a wide range of biological properties, including free radical scavenging, antibacterial, antitumor activities (Mo et al, 2022).…”

Organic–Inorganic Hybrid Hexagonal Perovskites (4-Methylpiperidinium)MnX3 (X = Cl and Br) with High-Temperature Dielectric Phase Transitions and Photoluminescent Properties

“…The investigation of phase transition materials within the realm of multifunctional organic–inorganic hybrid perovskites represents a highly active and burgeoning research area, wherein various physical properties, encompassing optical, electrical, and magnetic characteristics, manifest reversible changes in response to external stimuli. − The exquisite control and modulation of these multifarious functionalities render organic–inorganic hybrid perovskite materials immensely promising for a wide array of applications spanning data storage, sensing, energy conversion, and optoelectronics. − Remarkable research endeavors have been directed toward the induction of dielectric switching behavior and the design of multifunctional phase transition materials within hybrid perovskites, featuring the incorporation of flexible organic ammonium cations. − From a structural standpoint, the facile reorientation of organic cations within the inorganic framework holds the propensity to engender phase transitions with ease. Recently, concerted efforts have been dedicated to a halogen replacement strategy, aimed at the manipulation and optimization of phase transition phenomena and their associated properties, thereby facilitating the realization of multifunctional applications. − For instance, Ye et al.…”