Optimization of ZnO Nanorods Concentration in a Micro-Structured Polymeric Composite for Nanogenerators

The growing use of wearable devices has been stimulating research efforts in the development energy harvesters as more portable and practical sources alternatives. field piezoelectric nanogenerators (PENGs) triboelectric (TENGs), especially employing zinc oxide (ZnO) nanowires (NWs), greatly flourished recent years. Despite its modest coefficient, ZnO is very attractive due to sustainable raw materials facility obtain distinct morphologies, which increases multifunctionality. integration nanostructures into polymeric matrices overcome their fragility already proven be fruitful, nevertheless, concentration composite should optimized maximize harvesters’ output, an aspect that not properly addressed. This work studies a with variable concentrations nanorods (NRs), grown by microwave radiation assisted hydrothermal synthesis, polydimethylsiloxane (PDMS). With 25 wt % NRs was further micro-structured through laser engraving for output enhancement, nanogenerator (NG) fabricated 6 V at pushing force 2.3 N. generated NG could stored later employed power small electronic devices, ultimately illustrating potential harvesting device.