The University of Cambridge has researched and developed new incredibly thin quantum LEDs which can produce single photons of light, an important advancement in building compact chips used in computing and lab equipment. The team of researchers have produced the LEDs in layers of graphene, transition metal dichalcogenides (TMDS) and boron nitride.
The LEDs are only a few atoms in diameter and their single photon capabilities allow for scalability and future use in quantum computing as on-chip photon sources. Apparently the layer of TMD with the LED regions tightly pack electrons and electron vacancies are very limited. A photon is produced when an electron fills a vacancy at a lower energy rate than the electron. This type of production allows for lots of scalability and high levels of customizability.
Current digital computing practices are much slower and less powerful than quantum computing methods but it has been short in coming due to unreliable methods of single photon production. One of the University’s Senior Professors authoring the paper stated that “For quantum communication with single photons, and quantum networks between different nodes, we want to be able to just drive current and get light out. There are many emitters that are optically excitable, but only a handful are electrically driven.”
Tungsten Disulphide, another TMD material utilizes quantum emitters and scientists are now hoping that other layered materials can be used with quantum dot like features. The research was published in Nature Communications and should lead the way for groundbreaking new technological advances in computing and laboratory equipment throughout the world. Computing technologies generally advance relatively quickly and with the new LED capabilities could revolutionize existing computing techniques. Many suppliers of Stanhope Seta are incredibly excited about this.