Technology is the mother of them all!This time round it has employed the famous qoute telling many to turn their bitter lives into lemonade.
While many have been complaingning that some settings like the wi-fi on their phones if left running leads to massive consumption of battery thus phones go off leaving them stranded when in desperate use of the gadget, scientists have come up with a machine that converts the wi-fi signals into eletricity to power devices without need for battery.
According to the publication, the US scientists developed the device, known as ‘’rectenna’’, from a semiconductor just a few atoms thick.
Wi-fi signals captured by an integrated antenna are transformed into a DC current suitable for electronic circuits.
In experiments, the rectenna generated about 40 microwatts of power when exposed to typical wi-fi signals of around 150 microwatts.That is more than enough to light up a simple mobile display or activate silicon chips.
According to Daily Mail, the rectenna uses a radio-frequency antenna to capture electromagnetic waves carrying Wi-Fi in the form of AC waves.
This is then connected to a flexible and inexpensive two-dimensional semiconductor.The AC Wi-Fi signal travels into the semiconductor and is converted into a DC voltage that could be used to power electronic circuits or recharge batteries.
This conversion requires a piece of equipment known as a rectifier. Most traditional rectifiers are thick and inflexible.