【#Tech24H】A team of chemical engineers at ETH Zurich has made a breakthrough in semiconductor miniaturization. The team successfully reduces the size of an organic light-emitting diode (OLED) to 100 nanometers, approximately 1/50th of existing technology. This allows for a maximum pixel density about 2,500 times higher than before, resulting in the world’s smallest OLED. The application potential of nano-OLEDs extends beyond display technology. The minuscule size enables them to serve as light sources for high-resolution microscopy, illuminating sub-micrometer areas of samples and synthesizing images via computer processing to achieve unprecedented detail. Furthermore, the nanopixels can also function as miniature sensors, potentially capable of detecting signals from individual nerve cells.