flexible energy harvesters

This is a photograph of large-area PZT thin film nanogenerator (3.5 cm × 3.5 cm) on a curved glass tube and 105 commercial LEDs operated by self-powered flexible piezoelectric energy harvester. Credit: KAIST
Great improvements to nanogenerator power efficiency

The energy efficiency of KAIST’s piezoelectric nanogenerator has increased by almost 40 times, one step