{"id":1192,"date":"2022-11-08T10:46:52","date_gmt":"2022-11-08T15:46:52","guid":{"rendered":"https:\/\/techfragments.com\/?p=1192"},"modified":"2022-11-08T10:46:53","modified_gmt":"2022-11-08T15:46:53","slug":"deep-blue-cubic-quantum-dots","status":"publish","type":"post","link":"https:\/\/techfragments.com\/deep-blue-cubic-quantum-dots\/","title":{"rendered":"Deep Blue Cubic Quantum Dots With Cinematic Chemistry"},"content":{"rendered":"

Quantum dots<\/a> are nanoscale crystals that can give off different colours of light. Displays that use quantum dots promise to use less power, be brighter, and have more accurate colours than older displays. Red, green, and blue are the three colours that are usually needed to show full-colour images, but blue has been challenging to fabricate.<\/p>\n

Researchers at the University of Tokyo have developed a solution based on chemical structures that can arrange themselves. A cutting-edge imaging technique for visualizing these blue quantum dots was also critical to their creation and analysis.<\/p>\n

Quantum Dot Light Emitting Diodes<\/h2>\n
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Electron microscope images of experimental samples using different chemical combinations. Credit: \u00a92022 Nakamura et al.<\/p><\/div>\n

If you look closely at your device’s screen, you might be able to see the individual picture elements, or pixels, that make up the image.<\/p>\n

Pixels can be almost any colour, but they are not the smallest element on your screen because they are typically made up of red, green, and blue subpixels. The variable intensity of these subpixels gives the appearance of a single colour from a palette of billions to individual pixels.<\/p>\n

Since the early days of colour television, the underlying technology behind subpixels has evolved, and there are now several options. The next big step, however, is likely to be quantum dot light-emitting diodes (QD-LEDs).<\/p>\n

There are already displays based on QD-LEDs, but the technology is still maturing, and the available options have some drawbacks, particularly in regard to the blue subpixels within them. Blue subpixels are the most significant of the three primary colours.<\/p>\n

Self-organizing And Bottom Up<\/h2>\n