A novel zero-dimensional organic-inorganic hybrid ferroelectric material

In recent years, organic-inorganic hybrid ferroelectric materials with zero-dimensional (0D) structures have attracted widespread attention due to their fascinating characteristics arising from isolated metal halide structures. However, the literature studies on 0D organic-inorganic hybrid materials remain relatively scarce, possibly due to challenges such as the uncontrollable growth of ferroelectric materials or other factors. In this study, we introduce a new 0D organic-inorganic hybrid ferroelectric material, (2-methylimidazole)2CdBr4, which undergoes a phase transition from a ferroelectric phase to a paraelectric phase (with space groups changing from P21 to P21/m) at 350 K during heating processes, with a spontaneous polarization of 0.35 mu C cm-2. This work initiates with the structure of 0D organic-inorganic hybrid ferroelectric materials and discusses the material's ferroelectric, piezoelectric, and pyroelectric properties. Through this investigation, novel pathways for crafting 0D organic-inorganic hybrid ferroelectric materials are unveiled, along with insights into their potential applications across emerging material domains in the future. In recent years, organic-inorganic hybrid ferroelectric materials with zero-dimensional (0D) structures have attracted widespread attention due to their fascinating characteristics arising from isolated metal halide structures.