Plasma engineering of microstructured piezo – Triboelectric hybrid nanogenerators for wide bandwidth vibration energy harvesting

We introduce herein the advanced application of low-pressure plasma procedures for development piezo and triboelectric mode I hybrid nanogenerators. Thus, assisted deposition functionalization methods are presented as key enabling technologies nanoscale design ZnO polycrystalline shells, formation conducting metallic cores in [email protected] nanowires, solventless surface modification polymeric coatings matrixes. show how perfluorinated chains grafting polydimethylsiloxane (PDMS) provides a reliable approach to increase hydrophobicity charges at same time that keeping PDMS mechanical properties. In this way, we produce efficient Ag/ZnO convoluted piezoelectric nanogenerators supported on flexible substrates embedded compatible with contact–separation architecture. Factors like crystalline texture, thickness, nanowires aspect ratio, chemical explored optimize power output aimed harvesting from low-frequency vibrations. Just by manual triggering, device can charge capacitor switch an array color LEDs. Outstandingly, simple three-layer architecture allows vibration energy wide bandwidth, thus, performance characteristics frequencies between 1 Hz 50 demonstrate successful activation system up ca. 800 Hz.