// // Leave a Comment

Smartphones that can be powered by Wi-Fi signals; scientists working on battery-less devices

Smartphones won't need batteries to power them as a team of US-based scientists have development a new device named ‘rectenna’ which will use Wi-Fi signals to power phones, laptops, wearable technology and more

Smartphones have come a long way in the last half a decade or so and every year, we see new technologies being implemented in these cellular devices with all major players battling it out for getting the first mover’s advantage. That said, have you ever thought of using a smartphone so ‘smart’ that it won’t even need a battery to power itself. The thought might not seem like a reality to you but in a recent development, scientists have come up with a cellular device named ‘rectenna’ which can offer battery-less power for laptops, smartphones, wearable technology and medical devices.

smartphones battery Smartphones can be powered by Wi-Fi signals
Smartphones have come a long way in the last half a decade or so and every year, we see new technologies being implemented in these cellular devices with all major players battling it out for getting the first mover’s advantage. That said, have you ever thought of using a smartphone so ‘smart’ that it won’t even need a battery to power itself. The thought might not seem like a reality to you but in a recent development, scientists have come up with a cellular device named ‘rectenna’ which can offer battery-less power for laptops, smartphones, wearable technology and medical devices.

Professor Tomas Palacios, who is the director of the Massachusetts Institute of Technology as well as the Microsystems Technology Laboratories Centre for Graphene Devices and 2D Systems, along with his team has developed ‘rectenna’ which uses a flexible material that is capable of converting radio signals into usable electric current which offers offer battery-less power for laptops, smartphones and more.

 "What if we could develop electronic systems that we wrap around a bridge or cover an entire highway, or the walls of our office and bring electronic intelligence to everything around us? How do you provide energy for those electronics?” Professor Tomas Palacios was quoted as saying by the Daily Record. On the other hand, the research and details about ‘rectenna’ have been published in the recent online issue of the journal Nature.

In order to create rectenna, the team of scientists used a 2D material named molybdenum disulphide, which is considered to be one of the thinnest semiconductors with a thickness of just three atoms. Wi-Fi signals are captured by an integrated antenna in the system which are then transformed into a DC current. The electricity is obtained in form of radio waves which comes in high-frequency alternating current (AC).

The semiconductor in ‘rectenna’ converts the AC signal to direct current which can be used to offer battery-less power for laptops, smartphones and more. In experiments, rectenna was able to generate around 40 microwatts of power while being exposed to wi-fi signals with a frequency of around 150 microwatts. That much power is more than enough to power a simple smartphone or even activate silicon chips.

0 comments:

Post a Comment