Gold leaf helps charge phone by folding finger
A device made of gold and silicon can generate electricity when the user flexes or stretches his finger, allowing him to charge smart devices.
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The device is attached to a human finger to generate electricity. Photo:Mirror. |
Researchers have developed a small device made of gold and silicon that fits into the body and can generate electricity when a finger is flexed or other simple movements are performed.MirrorFebruary 12 news.
The device is 1.5 centimeters long and is made of two thin layers of gold with a layer of silicon in between. Flexing your finger creates friction between the gold layers, causing electrons to move back and forth, generating electricity.
In tests conducted by the team, the device generated a maximum voltage of 124 V and simultaneously lit up 48 red LEDs, which can be used to charge electronic devices.
"No one likes being tied to a power outlet or carrying around a spare charger. The human body is an abundant source of energy. We thought, why not take advantage of it to generate our own electricity?", said researcher Qiaoqiang Gan at the University at Buffalo.
The researchers are also developing a portable battery to store the electricity the device generates. They envision the system serving as a power source for wearable electronics and a variety of other devices.