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The strong piezoelectric lead zirconate titanate (PZT) ceramic with inherent brittleness and highly tough Poly (vinylidene fluoride) (PVDF) polymer with intrinsic weak piezoelectricity cannot simultaneously fulfill the requirements of high sensitivity and excellent stability as a piezoelectric acceleration sensor in extreme service environments, such as intense impact. Here, we developed a polarization-free...
In this study, Ag/(K,Na)NbO3 heterostructure constructed by in-situ photoreduction reaction is firstly introduced to fabricate the flexible piezoelectric nanogenerator (p-NG). The chemical heterojunction can improve the partial voltage applied to the KNN particles during poling process, and significantly enhance the orientation of dipole moment under the electric field. The p-NG device with Ag/(K,Na)NbO...
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