Uniting Ferroelectricity, Piezoelectricity, and Axial Negative Thermal Expansion in Single-Component Organic Materials Enables High-Performance Memristor and Energy-Harvesting Nanogenerators.
The development of ferroelectric materials is fundamentally constrained by the stringent requirement for crystallization within polar space groups. Moreover, integrating multiple functionalities, such as ferroelectricity, piezoelectricity, and negative thermal expansion (NTE), into a single-component organic material r...