Scientists have developed a light-weight, paper-based device that can harvest energy from body movements to power sensors and watches.

Key Facts

• Scientists have developed a light-weight, paper-based device that can harvest energy from body movements to power sensors and watches.
• An ultra-light, rhombic paper-cut design a few inches long and covered it with different materials to turn it into a power unit.
• The four outer sides, made of gold- and graphite-coated sand paper, comprised the devices energy-storing supercapacitor element.
• The inner surfaces, made of paper and coated in gold and a fluorinated ethylene propylene film, comprised the triboelectric nanogenerators (TENG) energy harvester.
• Pressing and releasing it over just a few minutes charged the device to 1 volt, which was enough to power a remote control, temperature sensor or a watch.

Source : The Hindu

GS III : Science and Technology- developments and their applications and effects in everyday life