Enhancement of patterned triboelectric output performance by an interfacial polymer layer for energy harvesting application

Efficaciously scavenging waste mechanical energy from the environment is an emerging field in the self-powered and self-governing electronics system which solves battery limitations. it demonstrates enormous potential in various fields such as wireless devices, vesture, and portable electronic devices. Different surface textured PET triboelectric nanogenerators (TENG) were developed by laser pattern method in the previous work, with the line textured TENG device showing improved performance due to a larger surface contact area. Here, polyethylene oxide (PEO) and polyvinyl alcohol (PVA) coated line patterned PETbased TENG was developed for conversion of mechanical energy into useful electric energy. The PEO layer has boosted the TENG output 4 times higher than the PA6-laser patterned PET TENG device (our previous report) and 2-fold higher than a pristine line patterned TENG. It has generated an open-circuit voltage, short circuit current, and instantaneous power density of 131 V, 2.32 μA, and 41.6 μW/cm2, respectively. The as-fabricated device was tested for 10000 cycles for reliability evaluation, which shows no significant performance degradation. In addition, the device was deployed to glowing 10 LEDs with high intensity. Thus, this device is used for harvesting ambient mechanical energy conversion and power micro and nanoelectronic devices.