WIFI TO BECOME OBSOLETE AS CHINESE SCIENTISTS DISCOVER LIFI

WiFi could turn out to be obsolete in a few years as Chinese scientists have developed a faster way of transmitting data known as LiFi.
The Chinese news agency called Xinhua released a report of the breakthrough by the scientists in creating full-color emissive carbon dots (F-CDs), which brings them a step nearer to developing a faster wireless communication medium that could be available in just six years.
Light Fidelity, known as LiFi, makes use of visible light from LED bulbs to transfer data much faster compared to radio wave-based WiFi.

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According to a 2015 test by a Chinese government ministry it was revealed that LiFi can reach speeds of 50 gigabytes per second, at which a movie download can be completed in just 0.3 seconds.
While most current research uses rare earth materials to provide the light for LiFi to transmit data, a team of Chinese scientists have actually created an alternative — F-CDs, a fluorescent carbon nano material that proves to be safer and faster.

Qu Songnan, an associate researcher at Changchun Institute of Optics, Fine Mechanics and Physics, the Chinese Academy of Sciences, which leads the research said “Many researchers all over the world are still working on this. We were the first to successfully create it using cost-effective raw materials such as urea with simple processing.”

Qu said rare earth has a long lifespan which reduces the speed of LiFi transmission. However, F-CDs enjoy the advantage of faster data transmission speeds.

In previous studies, carbon dots were limited to the emission of lights such as blue and green. The new nanomaterial that Qu’s team has made could emit all light visible to the human eye, which is a breakthrough in the field of fluorescent carbon nanomaterial.
Qu said this is significant for the development of LiFi, which he expects to enter the market in just six years. (NAN)

Hopefully in the next six years, LiFi is expected to totally replace the currently used WiFI .