The world’s smaller LED screen contains smaller pixels than a virus

Physicists have created the harshest diode screens (LED) ever¹. The image above is shown on a monochrome screen with a pixel less than 100 ومر m via, about width of human hair. But Boudan Zhao at the University of Zhejiang in Hangzhou, China, and its collaborators also managed to create an LED smaller, as the pixel units that had 90 nm were – the size of a typical virus, and small to be resolved even by the strongest visual microscope. The results described in nature today.

LEDS is the semi -conductors from which light emanates when the electrical current flows through it. Researchers have created semiconductors of Perovskite, a group of materials that not only include common minerals of the Earth’s cloak, but also those that are used in advanced solar panels. Perovskite enabled the LED indicators of the team to stay bright, even when the pixels were reduced to microscopic sizes. “Regardless of our scientific curiosity, these experiments show that in very small sizes, Lides Perovskite can still carry reasonable competencies,” said Zhao. This gives them an advantage over traditional bulbs.