The Phone That Charges With Your Fingers

February 20, 2018

Serena Carsley-Mann

All the world's a stage, And all the men and women merely players; They have their exits and their entrances, And one man in his time plays many parts, His acts being seven ages. At first, the infant, Mewling and puking in the nurse's arms. Then the whining schoolboy, with his satchel And shining morning face, creeping like snail Unwillingly to school. And then the lover, Sighing like furnace, with a woeful ballad Made to his mistress' eyebrow. Then a soldier, Full of strange oaths and bearded like the pard, Jealous in honor, sudden and quick in quarrel, Seeking the bubble reputation Even in the cannon's mouth. And then the justice, In fair round belly with good capon lined, With eyes severe and beard of formal cut, Full of wise saws and modern instances; And so he plays his part. The sixth age shifts Into the lean and slippered pantaloon, With spectacles on nose and pouch on side; His youthful hose, well saved, a world too wide For his shrunk shank, and his big manly voice, Turning again toward childish treble, pipes And whistles in his sound. Last scene of all, That ends this strange eventful history, Is second childishness and mere oblivion, Sans teeth, sans eyes, sans taste, sans everything.

- William Shakespeare

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With so many devices easily available in our modern society, it requires a lot of charging to be done. Even with wireless charging pads, they are still plugged into a power outlet.

In most cases, the process of charging has not evolved very much in the past decade. Researchers from the Chinese Academy of Science and the University of Buffalo may very well have created the latest development for charging that would not require any sockets. All it would take is some slight body movement and a metallic tab.

The secret behind this charging method is known as triboelectric charging which happens when a material becomes charged once it comes into contact with another material.

That’s how most static electricity occurs, just like how sometimes you get a little jolt when you touch someone by accident. This specific type of electrification is no simple task to turn into a power source, despite many researchers who have attempted. Materials are often very expensive and difficult to produce.

The metallic tab that has been developed for phone charging has overcome any challenges that have come it’s way. The tab has two thin layers of gold that border around a piece of silicon based polymer. This is commonly used in products such as Silly Putty and contact lenses.

One of the layers of gold is stretched and then once released it is crumpled. When putting force again, the layers of gold rub against each other and then friction is created by the polymer, causing electrons to flow back and forth between the gold layers.

With more friction, more power will be produced. The friction can be caused by a slight finger movement, according to researchers.

The technology is not fully developed yet, but researchers do have hopes that their product will be charging smartphones very soon. The human body is an incredibly source of energy and no one likes carrying around a portable charger, making their solution the ideal answer.