Smartphones Could Generate Own Power with New Coating

by:Keyuan     2020-06-26
Researchers in China say a transparent material that can be attached to a smartphone\'s touch screen can help the device to power when anyone clicks on it.
Most phones and tablets now have touch screens.
Using the touch screen, which usually includes finger tapping, scientists at Lanzhou University in China infer that the mechanical energy generated by these actions can be converted into electrical energy to charge mobile phone batteries, this can greatly extend the working hours of these portable devices.
Researchers have developed a new material based on transparent silicone rubber.
Scientists embed wires in this rubber, which are made of lead-titanium acetate zirconium acid, which is only 700 nm or 1 m wide.
From an angle, this is about 140 times the average width of human hair. [
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When the rubber is solidified, the researchers use the electric field to arrange the nano wires in the rubber on the column.
This alignment helps to set the electrical and visual properties of the material.
Whenever this Nano line is bent
For example, whenever someone taps on a material --
They generate electricity, and this phenomenon is called piezoelectric.
By ensuring that the nano wires are aligned with each other, the researchers help ensure that they respond consistently to finger tapping, generating as much energy as possible from motion.
Head when viewing material-
These very narrow wires are basically invisible and the material looks almost transparent.
Therefore, Yongqin, a material scientist and research senior author of Lanzhou University, told \"field science\" that nano wires \"can harvest the tapping energy on the screen without affecting the normal operation of the screen \".
Also, when looking at the material from an angle, the Nano Wire interferes with the light, which means that anything that looks at the material from that angle will look blurry.
Therefore, this material can also help protect the privacy of users by preventing anyone nearby from peeking at someone else\'s smartphone screen.
In the experiment, the current generated by tapping the material is 0.
8 nanoamps, or about 1-
One in a million of the electricity used by hearing aids.
Scientists point out that future research results can help their materials generate more current, effectively charging the batteries of mobile devices.
Electrical signals from the Naimi line can also help researchers develop more sensitive touch screens, Qin said.
In January, scientists introduced their findings in detail on the Internet.
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