Metal-Free Perovskite Ferroelectrics with the Most Equivalent Polarization Axes

• DOI: 10.1021/jacs.4c07268
• Publication Date: 2024-08-14T16:14:30Z
• Authors: Zhi-Xu Zhang; Hao-Fei Ni; Jing-Song Tang; Pei-Zhi Huang; Jia-Qi Luo; Feng-Wen Zhang; Jia-He Lin; Qiang-Qiang Jia; Gele Teri; Chang-Feng Wang; Da-Wei Fu; Yi Zhang

Ferroelectricity in metal-free perovskites (MFPs) has emerged as an academic hotspot for their lightweight, eco-friendly processability, flexibility, and degradability, with considerable progress including large spontaneous polarization, high Curie temperature, piezoelectric response, tailoring coercive field. However, equivalent polarization axes a key indicator are far from enough, although multiaxial ferroelectrics highly preferred performance output application flexibility that profit many directions possible easier reorientation. Here, by implementing the synergistic overlap of regulating anionic geometries (from spherical I