Chinese Scientists to Replace WiFi With Lifi Soon

 

The world of telecommunications is moving at a dizzying pace as WiFi could become obsolete in a few years courtesy of Chinese scientists who have  developed a faster way of transmitting data through Life Fidelity, LiFi.

The Chinese news agency Xinhua reported  the  breakthrough by the scientists in creating full-colour emissive carbon dots (F-CDs), which brings them one step closer to developing a faster wireless communication channel that could be available in just six years.

LiFi uses visible light from LED bulbs to transfer data much faster than radio wave-based WiFi.

A 2015 test by a Chinese government ministry showed 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 created an alternative — F-CDs, a fluorescent carbon nano material that proves to be safer and faster.

“Many researchers around 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,” said Qu Songnan, an associate researcher at Changchun Institute of Optics, Fine Mechanics and Physics, the Chinese Academy of Sciences, which leads the research.

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 nano material that Qu’s team has developed can emit all light visible to the human eye, which is a breakthrough in the field of fluorescent carbon nano material.

Qu said this is significant for the development of LiFi, which he expects to enter the market in just six years.

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