Triboelectric generator (TEG) devices have attracted considerable interest in the field of mechanical energy harvesting due to their low weight and mechanical softness. The charge transfer in TEG devices has been attributed to electron transfer, ion transfer, and material transfer [1] with the discussions still ongoing. There are many innovative TEG devices from low-cost materials presented in the literature for mechanical energy harvesting from human motion, vibrations, wind, water flow, and waves.[2-4] However, all TEG devices as a rule contain movable parts to magnify the dipole moment between triboelectric charges obtained from contact-separation. This specific requirement complicates the integration of TEG devices into energy harvesting systems. Alternative soft materials that exhibit bulk electromechanical response are piezoelectric polymers and their nanocomposites