Pingie: HTTP:: Quantum Dots Get First Atomic Scale Map

HTTP:: Quantum Dots Get First Atomic Scale Map
--------
A team of physicists from the University of Michigan (UM) announce the creation of the world's first atomic-scale map of the promising quantum dots, semiconductors whose excitons are confined in all three spatial dimensions. Quantum dots potentially have the ability to influence a large number of production processes, such as those for transistors, solar cells, LEDs, and diode lasers, and may also be used as agents in medical imaging and for constructing quantum bits (qubits) in the future.The reason why the accomplishment is so important is because it opens the way to creating custom quantum dots, to be tailored and optimized to specific applications only. At this point, the same, generic type of QD is used in a wide array of electronics, which is not at all good, experts argue. In the latest experiments, the scientists looked to expand their knowledge on the semiconductor crystals, which all have ten to 50 atoms in diameter. By using a process called directed assembly, en!
gineers have now gained the ability to control the position of single atoms inside the clusters, essentially controlling the QD's properties.Although this process has been around for a while, progress using it has been slow, mostly because the lack of knowledge on the detailed structure of the clusters impeded an...
--------
http://news.softpedia.com/news/Quantum-Dots-Get-First-Atomic-Scale-Map-123111.shtml
--------
This e-mail was sent by Experiment23 Inc., located in New York, NY
10163. To not receive further e-mails, please visit
http://help.pingie.com