A research team at the Daegu Gyeongbuk Institute of Science and Technology (DGIST) has created a groundbreaking wearable device capable of harvesting electrical energy from body movements. This innovative three-dimensional stretchable piezoelectric energy harvester can be worn directly on the skin or clothing, converting mechanical energy from joint movements into electricity to power electronic devices.
Energy harvesters typically fall into two categories: those utilizing the Triboelectric effect and those relying on the Piezoelectric effect. The Triboelectric effect occurs when certain materials become electrically charged through friction, while the Piezoelectric effect generates electrical charge when mechanical stress is applied. The DGIST device takes advantage of the Piezoelectric effect, harvesting energy from everyday physical activities such as walking or joint movements.
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