Researchers at Zhejiang University have successfully created the tiniest LED displays with pixels less than 100 micrometres, and even scaling down to 90 nanometres, comparable to a virus. They utilized perovskite materials for their semiconductors, allowing these tiny LEDs to maintain brightness and efficiency as their size decreased. The results, detailed in Nature, highlight not only a significant scientific achievement but also the potential advantages of perovskite LEDs over traditional LEDs in terms of performance at reduced scales.
"Apart from our scientific curiosity, such experiments show that at extremely small sizes, the perovskite LEDs can still hold reasonable efficiencies," says Zhao.
The researchers created a semiconductor from a perovskite, a class of materials that includes not only common minerals from the Earth's mantle, but also ones that are used in advanced solar panels.
The image above was shown on a monochromatic display with pixels less than 100 micrometres across, about the width of a human hair.
Physicists have created the tiniest light-emitting diode (LED) displays ever, with pixels only 90 nanometres wide - the size of a typical virus.
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