Quantum Dots

Let us say if there is an electron in Solid. Then it can move in three dimensions, x,y,z. Now if we cut the solid into a thin sheet. It can only move in two dimensions x and y. Ofcourse assuming that the sheet is smaller than the dimensions of the electron. Now we cut this sheet in to a line. So that electron can move only in a line thats in x direction. When we make this electron confined in a dot we get Quantum dot. These are psuedo atoms . Thats we can design atoms which would exhibit the behaviour that we need. As you see these can have tremendous applications from QLEDs to spectroscopy etc. Scope of this new technology is simply stunning.

As somebody said " The next Big thing is really Small."