Interfacial Field-Driven Self-Poling in Lead-Free P(VDF-TrFE)/BCZT Nanogenerator: Achieving High-Performance Energy Harvesting via Percolation-Optimized Dielectric Coupling

Key Points

• The research aims to achieve spontaneous dipole alignment in ferroelectric nanogenerators without external poling.
• Developed a self-poling mechanism driven by interfacial fields at the polymer-ceramic interface.
• Engineered the material interfaces to optimize dielectric coupling.
• Tested the energy harvesting performance of the P(VDF-TrFE)/BCZT nanogenerator.
• Achieved significant dipole alignment, resulting in enhanced energy harvesting efficiency.
• Demonstrated that the optimized dielectric coupling leads to improved performance metrics.
• Showed a marked increase in output voltage compared to traditional methods.