TECH

Australian scientists have learned to manufacture OLED from human hair 

A group of Australian scientists from the Queensland University of Technology has found practical application for biological waste, such as cut human hair. With the treated hair, they learned to create an active shiny layer of OLED screens. The following are the experiments on the use of animal and sheep hair in the production of OLED. And this is not an April Fool joke. All for real. A group led by two university professors, Prashant Sonar and Konstantin Ostrikova, proposed technology for human hair processing to produce carbon nanodots (nanodots) matrices. Hair is burned at a temperature of 240 ° C, which turns them into a source of carbon and nitrogen. Then carbon nanodots with sizes smaller than 10 nm are formed from carbon. In combination with a polymer, nanodots are distributed on a substrate and are formed into "nanoislands". When a small power supply is applied to the working layer, the nano-islands begin to emit blue or blue light. According to the inventors, the luminosity of nano-island arrays of carbon points on flexible substrates can reach 350 cd / m2. On a solid glass substrate, it is possible to obtain a brightness of 700 cd / m2. However, there is unlikely to be a lot of hair to produce displays for TVs and even smartphones regularly. But from the point of view of the production of environmentally friendly screens for smart packaging of products or medicines, for example, the technology proposed by Australians can justify itself.

AVnews